Merge pull request #1254 from 4Science/#1206

Improve error handling during submission

src/app/shared/form/builder/ds-dynamic-form-ui/models/date-picker/date-picker.component.html

@@ -8,7 +8,7 @@
     [size]="4"
     [(ngModel)]="initialYear"
     [value]="year"
-    [class.is-invalid]="showErrorMessages"
+    [invalid]="showErrorMessages"
     [placeholder]='yearPlaceholder'
     (blur)="onBlur($event)"
     (change)="onChange($event)"

src/app/shared/form/form.component.ts

@@ -254,6 +254,13 @@ export class FormComponent implements OnDestroy, OnInit {
 
   onBlur(event: DynamicFormControlEvent): void {
     this.blur.emit(event);
+    const control: FormControl = event.control;
+    const fieldIndex: number = (event.context && event.context.index) ? event.context.index : 0;
+    if (control.valid) {
+      this.formService.removeError(this.formId, event.model.name, fieldIndex);
+    } else {
+      this.formService.addControlErrors(control, this.formId, event.model.name, fieldIndex);
+    }
   }
 
   onCustomEvent(event: any) {

src/app/shared/form/form.reducer.ts

@@ -2,10 +2,13 @@ import {
   FormAction,
   FormActionTypes,
   FormAddError,
-  FormChangeAction, FormClearErrorsAction,
+  FormAddTouchedAction,
+  FormChangeAction,
+  FormClearErrorsAction,
   FormInitAction,
-  FormRemoveAction, FormRemoveErrorAction,
+  FormRemoveAction,
-  FormStatusChangeAction, FormAddTouchedAction
+  FormRemoveErrorAction,
+  FormStatusChangeAction
 } from './form.actions';
 import { hasValue } from '../empty.util';
 import { isEqual, uniqWith } from 'lodash';
@@ -82,12 +85,16 @@ function addFormErrors(state: FormState, action: FormAddError) {
       fieldIndex: action.payload.fieldIndex,
       message: action.payload.errorMessage
     };
-
+    const metadata = action.payload.fieldId.replace(/\_/g, '.');
+    const touched = Object.assign({}, state[formId].touched, {
+      [metadata]: true
+    });
     return Object.assign({}, state, {
       [formId]: {
         data: state[formId].data,
         valid: state[formId].valid,
         errors: state[formId].errors ? uniqWith(state[formId].errors.concat(error), isEqual) : [].concat(error),
+        touched
       }
     });
   } else {

src/app/shared/form/form.service.ts

@@ -1,4 +1,4 @@
-import { map, distinctUntilChanged, filter } from 'rxjs/operators';
+import { distinctUntilChanged, filter, map } from 'rxjs/operators';
 import { Injectable } from '@angular/core';
 import { AbstractControl, FormArray, FormControl, FormGroup } from '@angular/forms';
 import { Observable } from 'rxjs';
@@ -11,12 +11,15 @@ import { DynamicFormControlEvent, DynamicFormControlModel } from '@ng-dynamic-fo
 import { isEmpty, isNotUndefined } from '../empty.util';
 import { uniqueId } from 'lodash';
 import {
+  FormAddError,
+  FormAddTouchedAction,
   FormChangeAction,
   FormInitAction,
-  FormRemoveAction, FormRemoveErrorAction, FormAddTouchedAction,
+  FormRemoveAction,
+  FormRemoveErrorAction,
   FormStatusChangeAction
 } from './form.actions';
-import { FormEntry, FormTouchedState } from './form.reducer';
+import { FormEntry, FormError, FormTouchedState } from './form.reducer';
 import { environment } from '../../../environments/environment';
 
 @Injectable()
@@ -66,7 +69,7 @@ export class FormService {
   /**
    * Method to retrieve form's errors from state
    */
-  public getFormErrors(formId: string): Observable<any> {
+  public getFormErrors(formId: string): Observable<FormError[]> {
     return this.store.pipe(
       select(formObjectFromIdSelector(formId)),
       filter((state) => isNotUndefined(state)),
@@ -105,6 +108,34 @@ export class FormService {
     });
   }
 
+  /**
+   * Check if form group has an invalid form control
+   * @param formGroup The form group to check
+   */
+  public hasValidationErrors(formGroup: FormGroup | FormArray): boolean {
+    let hasErrors = false;
+    const fields: string[] = Object.keys(formGroup.controls);
+    for (const field of fields) {
+      const control = formGroup.get(field);
+      if (control instanceof FormControl) {
+        hasErrors = !control.valid && control.touched;
+      } else if (control instanceof FormGroup || control instanceof FormArray) {
+        hasErrors = this.hasValidationErrors(control);
+      }
+      if (hasErrors) {
+        break;
+      }
+    }
+    return hasErrors;
+  }
+
+  public addControlErrors(field: AbstractControl, formId: string, fieldId: string, fieldIndex: number) {
+    const errors: string[] = Object.keys(field.errors)
+      .filter((errorKey) => field.errors[errorKey] === true)
+      .map((errorKey) => `error.validation.${errorKey}`);
+    errors.forEach((error) => this.addError(formId, fieldId, fieldIndex, error));
+  }
+
   public addErrorToField(field: AbstractControl, model: DynamicFormControlModel, message: string) {
     const error = {}; // create the error object
     const errorKey = this.getValidatorNameFromMap(message);
@@ -186,7 +217,12 @@ export class FormService {
     this.store.dispatch(new FormAddTouchedAction(formId, ids));
   }
 
-  public removeError(formId: string, eventModelId: string, fieldIndex: number) {
+  public addError(formId: string, fieldId: string, fieldIndex: number, message: string) {
-    this.store.dispatch(new FormRemoveErrorAction(formId, eventModelId, fieldIndex));
+    const normalizedFieldId = fieldId.replace(/\./g, '_');
+    this.store.dispatch(new FormAddError(formId, normalizedFieldId, fieldIndex, message));
+  }
+  public removeError(formId: string, fieldId: string, fieldIndex: number) {
+    const normalizedFieldId = fieldId.replace(/\./g, '_');
+    this.store.dispatch(new FormRemoveErrorAction(formId, normalizedFieldId, fieldIndex));
   }
 }

src/app/shared/mocks/form-service.mock.ts

@@ -17,7 +17,9 @@ export function getMockFormService(
     resetForm: {},
     validateAllFormFields: jasmine.createSpy('validateAllFormFields'),
     isValid: jasmine.createSpy('isValid'),
-    isFormInitialized: observableOf(true)
+    isFormInitialized: observableOf(true),
+    addError: jasmine.createSpy('addError'),
+    removeError: jasmine.createSpy('removeError'),
   });
 
 }

src/app/shared/mocks/submission.mock.ts

@@ -60,7 +60,7 @@ export const mockSectionsErrors = [
   }
 ];
 
-export const mockSectionsErrorsTwo = [
+export const mockSectionsErrorsTouchedField = [
   {
     message: 'error.validation.required',
     paths: [
@@ -1020,7 +1020,127 @@ export const mockSubmissionState: SubmissionObjectState = Object.assign({}, {
         collapsed: false,
         enabled: true,
         data: {},
-        errors: [],
+        errorsToShow: [],
+        isLoading: false,
+        isValid: false,
+        removePending: false
+      } as any,
+      'collection': {
+        config: '',
+        mandatory: true,
+        sectionType: 'collection',
+        visibility: {
+          main: 'HIDDEN',
+          other: 'HIDDEN'
+        },
+        collapsed: false,
+        enabled: true,
+        data: {},
+        errorsToShow: [],
+        isLoading: false,
+        isValid: false,
+        removePending: false
+      } as any,
+      'traditionalpageone': {
+        header: 'submit.progressbar.describe.stepone',
+        config: 'https://rest.api/dspace-spring-rest/api/config/submissionforms/traditionalpageone',
+        mandatory: true,
+        sectionType: 'submission-form',
+        collapsed: false,
+        enabled: true,
+        data: {},
+        errorsToShow: [],
+        formId: '2_traditionalpageone',
+        isLoading: false,
+        isValid: false,
+        removePending: false
+      } as any,
+      'traditionalpagetwo': {
+        header: 'submit.progressbar.describe.steptwo',
+        config: 'https://rest.api/dspace-spring-rest/api/config/submissionforms/traditionalpagetwo',
+        mandatory: false,
+        sectionType: 'submission-form',
+        collapsed: false,
+        enabled: false,
+        data: {},
+        errorsToShow: [],
+        isLoading: false,
+        isValid: false,
+        removePending: false
+      } as any,
+      'detect-duplicate': {
+        header: 'submit.progressbar.detect-duplicate',
+        config: '',
+        mandatory: true,
+        sectionType: 'detect-duplicate',
+        collapsed: false,
+        enabled: true,
+        data: {
+          matches: {}
+        },
+        errorsToShow: [],
+        isLoading: false,
+        isValid: false,
+        removePending: false
+      } as any,
+      'upload': {
+        header: 'submit.progressbar.upload',
+        config: 'https://rest.api/dspace-spring-rest/api/config/submissionuploads/upload',
+        mandatory: true,
+        sectionType: 'upload',
+        collapsed: false,
+        enabled: true,
+        data: {
+          files: []
+        },
+        errorsToShow: [],
+        isLoading: false,
+        isValid: false,
+        removePending: false
+      } as any,
+      'license': {
+        header: 'submit.progressbar.license',
+        config: '',
+        mandatory: true,
+        sectionType: 'license',
+        visibility: {
+          main: null,
+          other: 'READONLY'
+        },
+        collapsed: false,
+        enabled: true,
+        data: {},
+        errorsToShow: [],
+        isLoading: false,
+        isValid: false,
+        removePending: false
+      } as any
+    },
+    isLoading: false,
+    savePending: false,
+    depositPending: false
+  }
+});
+
+export const mockSubmissionStateWithDuplicate: SubmissionObjectState = Object.assign({}, {
+  826: {
+    collection: mockSubmissionCollectionId,
+    definition: 'traditional',
+    selfUrl: mockSubmissionSelfUrl,
+    activeSection: null,
+    sections: {
+      'extraction': {
+        config: '',
+        mandatory: true,
+        sectionType: 'utils',
+        visibility: {
+          main: 'HIDDEN',
+          other: 'HIDDEN'
+        },
+        collapsed: false,
+        enabled: true,
+        data: {},
+        errorsToShow: [],
         isLoading: false,
         isValid: false
       } as any,
@@ -1035,7 +1155,7 @@ export const mockSubmissionState: SubmissionObjectState = Object.assign({}, {
         collapsed: false,
         enabled: true,
         data: {},
-        errors: [],
+        errorsToShow: [],
         isLoading: false,
         isValid: false
       } as any,
@@ -1047,7 +1167,7 @@ export const mockSubmissionState: SubmissionObjectState = Object.assign({}, {
         collapsed: false,
         enabled: true,
         data: {},
-        errors: [],
+        errorsToShow: [],
         formId: '2_traditionalpageone',
         isLoading: false,
         isValid: false
@@ -1060,7 +1180,7 @@ export const mockSubmissionState: SubmissionObjectState = Object.assign({}, {
         collapsed: false,
         enabled: false,
         data: {},
-        errors: [],
+        errorsToShow: [],
         isLoading: false,
         isValid: false
       } as any,
@@ -1074,7 +1194,7 @@ export const mockSubmissionState: SubmissionObjectState = Object.assign({}, {
         data: {
           files: []
         },
-        errors: [],
+        errorsToShow: [],
         isLoading: false,
         isValid: false
       } as any,
@@ -1090,7 +1210,7 @@ export const mockSubmissionState: SubmissionObjectState = Object.assign({}, {
         collapsed: false,
         enabled: true,
         data: {},
-        errors: [],
+        errorsToShow: [],
         isLoading: false,
         isValid: false
       } as any
@@ -1119,7 +1239,7 @@ export const mockSubmissionStateWithoutUpload: SubmissionObjectState = Object.as
         collapsed: false,
         enabled: true,
         data: {},
-        errors: [],
+        errorsToShow: [],
         isLoading: false,
         isValid: false
       } as any,
@@ -1134,7 +1254,7 @@ export const mockSubmissionStateWithoutUpload: SubmissionObjectState = Object.as
         collapsed: false,
         enabled: true,
         data: {},
-        errors: [],
+        errorsToShow: [],
         isLoading: false,
         isValid: false
       } as any,
@@ -1146,7 +1266,7 @@ export const mockSubmissionStateWithoutUpload: SubmissionObjectState = Object.as
         collapsed: false,
         enabled: true,
         data: {},
-        errors: [],
+        errorsToShow: [],
         formId: '2_traditionalpageone',
         isLoading: false,
         isValid: false
@@ -1159,7 +1279,7 @@ export const mockSubmissionStateWithoutUpload: SubmissionObjectState = Object.as
         collapsed: false,
         enabled: false,
         data: {},
-        errors: [],
+        errorsToShow: [],
         isLoading: false,
         isValid: false
       } as any,
@@ -1175,7 +1295,7 @@ export const mockSubmissionStateWithoutUpload: SubmissionObjectState = Object.as
         collapsed: false,
         enabled: true,
         data: {},
-        errors: [],
+        errorsToShow: [],
         isLoading: false,
         isValid: false
       } as any
@@ -1198,7 +1318,7 @@ export const mockSectionsState = Object.assign({}, {
     collapsed: false,
     enabled: true,
     data: {},
-    errors: [],
+    errorsToShow: [],
     isLoading: false,
     isValid: false
   } as any,
@@ -1213,7 +1333,7 @@ export const mockSectionsState = Object.assign({}, {
     collapsed: false,
     enabled: true,
     data: {},
-    errors: [],
+    errorsToShow: [],
     isLoading: false,
     isValid: false
   } as any,
@@ -1225,7 +1345,7 @@ export const mockSectionsState = Object.assign({}, {
     collapsed: false,
     enabled: true,
     data: {},
-    errors: [],
+    errorsToShow: [],
     isLoading: false,
     isValid: false
   } as any,
@@ -1237,7 +1357,7 @@ export const mockSectionsState = Object.assign({}, {
     collapsed: false,
     enabled: false,
     data: {},
-    errors: [],
+    errorsToShow: [],
     isLoading: false,
     isValid: false
   } as any,
@@ -1249,7 +1369,7 @@ export const mockSectionsState = Object.assign({}, {
     collapsed: false,
     enabled: true,
     data: {},
-    errors: [],
+    errorsToShow: [],
     isLoading: false,
     isValid: false
   } as any,
@@ -1265,7 +1385,7 @@ export const mockSectionsState = Object.assign({}, {
     collapsed: false,
     enabled: true,
     data: {},
-    errors: [],
+    errorsToShow: [],
     isLoading: false,
     isValid: false
   } as any

src/app/shared/testing/sections-service.stub.ts

@@ -18,4 +18,6 @@ export class SectionsServiceStub {
   setSectionError = jasmine.createSpy('setSectionError');
   setSectionStatus = jasmine.createSpy('setSectionStatus');
   computeSectionConfiguredMetadata = jasmine.createSpy('computeSectionConfiguredMetadata');
+  getShownSectionErrors = jasmine.createSpy('getShownSectionErrors');
+  getSectionServerErrors = jasmine.createSpy('getSectionServerErrors');
 }

src/app/submission/edit/submission-edit.component.html

@@ -3,6 +3,7 @@
                       [sections]="sections"
                       [selfUrl]="selfUrl"
                       [submissionDefinition]="submissionDefinition"
+                      [submissionErrors]="submissionErrors"
                       [item]="item"
                       [submissionId]="submissionId"></ds-submission-form>
 </div>

src/app/submission/edit/submission-edit.component.ts

@@ -2,11 +2,11 @@ import { ChangeDetectorRef, Component, OnDestroy, OnInit } from '@angular/core';
 import { ActivatedRoute, ParamMap, Router } from '@angular/router';
 
 import { Subscription } from 'rxjs';
-import { filter, switchMap, debounceTime } from 'rxjs/operators';
+import { debounceTime, filter, switchMap } from 'rxjs/operators';
 import { TranslateService } from '@ngx-translate/core';
 
 import { WorkspaceitemSectionsObject } from '../../core/submission/models/workspaceitem-sections.model';
-import { hasValue, isEmpty, isNotNull, isNotEmptyOperator } from '../../shared/empty.util';
+import { hasValue, isEmpty, isNotEmptyOperator, isNotNull } from '../../shared/empty.util';
 import { SubmissionDefinitionsModel } from '../../core/config/models/config-submission-definitions.model';
 import { SubmissionService } from '../submission.service';
 import { NotificationsService } from '../../shared/notifications/notifications.service';
@@ -18,6 +18,8 @@ import { getAllSucceededRemoteData } from '../../core/shared/operators';
 import { ItemDataService } from '../../core/data/item-data.service';
 import { BehaviorSubject } from 'rxjs/internal/BehaviorSubject';
 import { SubmissionJsonPatchOperationsService } from '../../core/submission/submission-json-patch-operations.service';
+import { SubmissionError } from '../objects/submission-objects.reducer';
+import parseSectionErrors from '../utils/parseSectionErrors';
 
 /**
  * This component allows to edit an existing workspaceitem/workflowitem.
@@ -53,6 +55,12 @@ export class SubmissionEditComponent implements OnDestroy, OnInit {
    */
   public submissionDefinition: SubmissionDefinitionsModel;
 
+  /**
+   * The submission errors present in the submission object
+   * @type {SubmissionError}
+   */
+  public submissionErrors: SubmissionError;
+
   /**
    * The submission id
    * @type {string}
@@ -86,6 +94,7 @@ export class SubmissionEditComponent implements OnDestroy, OnInit {
    * @param {ItemDataService} itemDataService
    * @param {SubmissionService} submissionService
    * @param {TranslateService} translate
+   * @param {SubmissionJsonPatchOperationsService} submissionJsonPatchOperationsService
    */
   constructor(private changeDetectorRef: ChangeDetectorRef,
               private notificationsService: NotificationsService,
@@ -112,6 +121,8 @@ export class SubmissionEditComponent implements OnDestroy, OnInit {
             this.notificationsService.info(null, this.translate.get('submission.general.cannot_submit'));
             this.router.navigate(['/mydspace']);
           } else {
+            const { errors } = submissionObjectRD.payload;
+            this.submissionErrors = parseSectionErrors(errors);
             this.submissionId = submissionObjectRD.payload.id.toString();
             this.collectionId = (submissionObjectRD.payload.collection as Collection).id;
             this.selfUrl = submissionObjectRD.payload._links.self.href;

src/app/submission/form/submission-form.component.spec.ts

@@ -126,6 +126,7 @@ describe('SubmissionFormComponent Component', () => {
       comp.submissionDefinition = submissionDefinition;
       comp.selfUrl = selfUrl;
       comp.sections = sectionsData;
+      comp.submissionErrors = null;
       comp.item = new Item();
 
       submissionServiceStub.getSubmissionObject.and.returnValue(observableOf(submissionState));

src/app/submission/form/submission-form.component.ts

@@ -11,7 +11,7 @@ import { WorkspaceitemSectionsObject } from '../../core/submission/models/worksp
 
 import { hasValue, isNotEmpty } from '../../shared/empty.util';
 import { UploaderOptions } from '../../shared/uploader/uploader-options.model';
-import { SubmissionObjectEntry } from '../objects/submission-objects.reducer';
+import { SubmissionError, SubmissionObjectEntry } from '../objects/submission-objects.reducer';
 import { SectionDataObject } from '../sections/models/section-data.model';
 import { SubmissionService } from '../submission.service';
 import { Item } from '../../core/shared/item.model';
@@ -41,6 +41,12 @@ export class SubmissionFormComponent implements OnChanges, OnDestroy {
    */
   @Input() sections: WorkspaceitemSectionsObject;
 
+  /**
+   * The submission errors present in the submission object
+   * @type {SubmissionError}
+   */
+  @Input() submissionErrors: SubmissionError;
+
   /**
    * The submission self url
    * @type {string}
@@ -163,7 +169,7 @@ export class SubmissionFormComponent implements OnChanges, OnDestroy {
               this.submissionDefinition,
               this.sections,
               this.item,
-              null);
+              this.submissionErrors);
             this.changeDetectorRef.detectChanges();
           })
       );

src/app/submission/form/submission-upload-files/submission-upload-files.component.spec.ts

@@ -1,5 +1,5 @@
 import { ChangeDetectorRef, Component, CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';
-import { waitForAsync, ComponentFixture, inject, TestBed } from '@angular/core/testing';
+import { ComponentFixture, inject, TestBed, waitForAsync } from '@angular/core/testing';
 
 import { of as observableOf } from 'rxjs';
 import { TranslateModule, TranslateService } from '@ngx-translate/core';
@@ -165,6 +165,7 @@ describe('SubmissionUploadFilesComponent Component', () => {
             submissionId,
             sectionId,
             mockSectionsData[sectionId],
+          expectedErrors[sectionId],
             expectedErrors[sectionId]
           );
         });
@@ -188,6 +189,7 @@ describe('SubmissionUploadFilesComponent Component', () => {
             submissionId,
             sectionId,
             mockSectionsData[sectionId],
+          expectedErrors[sectionId],
             expectedErrors[sectionId]
           );
         });

src/app/submission/form/submission-upload-files/submission-upload-files.component.ts

@@ -143,7 +143,7 @@ export class SubmissionUploadFilesComponent implements OnChanges {
                           }
                         }
                       });
-                  this.sectionService.updateSectionData(this.submissionId, sectionId, sectionData, sectionErrors);
+                  this.sectionService.updateSectionData(this.submissionId, sectionId, sectionData, sectionErrors, sectionErrors);
                 });
             }
 

src/app/submission/objects/submission-objects.actions.ts

@@ -1,7 +1,7 @@
 import { Action } from '@ngrx/store';
 
 import { type } from '../../shared/ngrx/type';
-import { SectionVisibility, SubmissionSectionError } from './submission-objects.reducer';
+import { SectionVisibility, SubmissionError, SubmissionSectionError } from './submission-objects.reducer';
 import { WorkspaceitemSectionUploadFileObject } from '../../core/submission/models/workspaceitem-section-upload-file.model';
 import {
   WorkspaceitemSectionDataType,
@@ -206,7 +206,8 @@ export class UpdateSectionDataAction implements Action {
     submissionId: string;
     sectionId: string;
     data: WorkspaceitemSectionDataType;
-    errors: SubmissionSectionError[];
+    errorsToShow: SubmissionSectionError[];
+    serverValidationErrors: SubmissionSectionError[];
     metadata: string[];
   };
 
@@ -219,17 +220,20 @@ export class UpdateSectionDataAction implements Action {
    *    the section's ID to add
    * @param data
    *    the section's data
-   * @param errors
+   * @param errorsToShow
-   *    the section's errors
+   *    the list of the section's errors to show
+   * @param serverValidationErrors
+   *    the list of the section errors detected by the server
    * @param metadata
    *    the section's metadata
    */
   constructor(submissionId: string,
               sectionId: string,
               data: WorkspaceitemSectionDataType,
-              errors: SubmissionSectionError[],
+              errorsToShow: SubmissionSectionError[],
+              serverValidationErrors: SubmissionSectionError[],
               metadata?: string[]) {
-    this.payload = { submissionId, sectionId, data, errors, metadata };
+    this.payload = { submissionId, sectionId, data, errorsToShow, serverValidationErrors, metadata };
   }
 }
 
@@ -308,7 +312,7 @@ export class InitSubmissionFormAction implements Action {
     submissionDefinition: SubmissionDefinitionsModel;
     sections: WorkspaceitemSectionsObject;
     item: Item;
-    errors: SubmissionSectionError[];
+    errors: SubmissionError;
   };
 
   /**
@@ -333,7 +337,7 @@ export class InitSubmissionFormAction implements Action {
               submissionDefinition: SubmissionDefinitionsModel,
               sections: WorkspaceitemSectionsObject,
               item: Item,
-              errors: SubmissionSectionError[]) {
+              errors: SubmissionError) {
     this.payload = { collectionId, submissionId, selfUrl, submissionDefinition, sections, item, errors };
   }
 }

src/app/submission/objects/submission-objects.effects.spec.ts

@@ -28,7 +28,7 @@ import {
   mockSectionsData,
   mockSectionsDataTwo,
   mockSectionsErrors,
-  mockSectionsErrorsTwo,
+  mockSectionsErrorsTouchedField,
   mockSubmissionCollectionId,
   mockSubmissionDefinition,
   mockSubmissionDefinitionResponse,
@@ -358,18 +358,21 @@ describe('SubmissionObjectEffects test suite', () => {
           submissionId,
           'traditionalpageone',
           mockSectionsData.traditionalpageone as any,
+          errorsList.traditionalpageone || [],
           errorsList.traditionalpageone || []
         ),
         c: new UpdateSectionDataAction(
           submissionId,
           'license',
           mockSectionsData.license as any,
+          errorsList.license || [],
           errorsList.license || []
         ),
         d: new UpdateSectionDataAction(
           submissionId,
           'upload',
           mockSectionsData.upload as any,
+          errorsList.upload || [],
           errorsList.upload || []
         ),
       });
@@ -408,25 +411,29 @@ describe('SubmissionObjectEffects test suite', () => {
         }
       });
 
-      const errorsList = parseSectionErrors(mockSectionsErrorsTwo);
+      const errorsToShowList = parseSectionErrors(mockSectionsErrorsTouchedField);
+      const serverValidationErrorsList = parseSectionErrors(mockSectionsErrors);
       const expected = cold('--(bcd)-', {
         b: new UpdateSectionDataAction(
           submissionId,
           'traditionalpageone',
           mockSectionsData.traditionalpageone as any,
-          errorsList.traditionalpageone
+          errorsToShowList.traditionalpageone,
+          serverValidationErrorsList.traditionalpageone
         ),
         c: new UpdateSectionDataAction(
           submissionId,
           'license',
           mockSectionsData.license as any,
-          errorsList.license || []
+          errorsToShowList.license || [],
+          serverValidationErrorsList.license || []
         ),
         d: new UpdateSectionDataAction(
           submissionId,
           'upload',
           mockSectionsData.upload as any,
-          errorsList.upload || []
+          errorsToShowList.upload || [],
+          serverValidationErrorsList.upload || []
         ),
       });
 
@@ -459,18 +466,21 @@ describe('SubmissionObjectEffects test suite', () => {
           submissionId,
           'traditionalpageone',
           mockSectionsData.traditionalpageone as any,
+          [],
           []
         ),
         c: new UpdateSectionDataAction(
           submissionId,
           'license',
           mockSectionsData.license as any,
+          [],
           []
         ),
         d: new UpdateSectionDataAction(
           submissionId,
           'upload',
           mockSectionsData.upload as any,
+          [],
           []
         ),
       });
@@ -506,18 +516,21 @@ describe('SubmissionObjectEffects test suite', () => {
           submissionId,
           'traditionalpageone',
           mockSectionsData.traditionalpageone as any,
+          errorsList.traditionalpageone || [],
           errorsList.traditionalpageone || []
         ),
         c: new UpdateSectionDataAction(
           submissionId,
           'license',
           mockSectionsData.license as any,
+          errorsList.license || [],
           errorsList.license || []
         ),
         d: new UpdateSectionDataAction(
           submissionId,
           'upload',
           mockSectionsData.upload as any,
+          errorsList.upload || [],
           errorsList.upload || []
         ),
       });
@@ -553,24 +566,28 @@ describe('SubmissionObjectEffects test suite', () => {
           submissionId,
           'traditionalpageone',
           mockSectionsDataTwo.traditionalpageone as any,
+          errorsList.traditionalpageone || [],
           errorsList.traditionalpageone || []
         ),
         c: new UpdateSectionDataAction(
           submissionId,
           'traditionalpagetwo',
           mockSectionsDataTwo.traditionalpagetwo as any,
+          errorsList.traditionalpagetwo || [],
           errorsList.traditionalpagetwo || []
         ),
         d: new UpdateSectionDataAction(
           submissionId,
           'license',
           mockSectionsDataTwo.license as any,
+          errorsList.license || [],
           errorsList.license || []
         ),
         e: new UpdateSectionDataAction(
           submissionId,
           'upload',
           mockSectionsDataTwo.upload as any,
+          errorsList.upload || [],
           errorsList.upload || []
         ),
       });
@@ -610,18 +627,21 @@ describe('SubmissionObjectEffects test suite', () => {
           submissionId,
           'traditionalpageone',
           mockSectionsData.traditionalpageone as any,
-          []
+          [],
+          errorsList.traditionalpageone
         ),
         c: new UpdateSectionDataAction(
           submissionId,
           'license',
           mockSectionsData.license as any,
+          errorsList.license || [],
           errorsList.license || []
         ),
         d: new UpdateSectionDataAction(
           submissionId,
           'upload',
           mockSectionsData.upload as any,
+          errorsList.upload || [],
           errorsList.upload || []
         ),
       });
@@ -655,18 +675,21 @@ describe('SubmissionObjectEffects test suite', () => {
           submissionId,
           'traditionalpageone',
           mockSectionsData.traditionalpageone as any,
+          [],
           []
         ),
         c: new UpdateSectionDataAction(
           submissionId,
           'license',
           mockSectionsData.license as any,
+          [],
           []
         ),
         d: new UpdateSectionDataAction(
           submissionId,
           'upload',
           mockSectionsData.upload as any,
+          [],
           []
         ),
       });
@@ -696,26 +719,28 @@ describe('SubmissionObjectEffects test suite', () => {
         }
       });
 
-      const errorsList = parseSectionErrors(mockSectionsErrors);
+      const serverValidationErrorsList = parseSectionErrors(mockSectionsErrors);
-      console.log(errorsList);
       const expected = cold('--(bcd)-', {
         b: new UpdateSectionDataAction(
           submissionId,
           'traditionalpageone',
           mockSectionsData.traditionalpageone as any,
-          []
+          [],
+          serverValidationErrorsList.traditionalpageone
         ),
         c: new UpdateSectionDataAction(
           submissionId,
           'license',
           mockSectionsData.license as any,
-          errorsList.license || []
+          serverValidationErrorsList.license || [],
+          serverValidationErrorsList.license || []
         ),
         d: new UpdateSectionDataAction(
           submissionId,
           'upload',
           mockSectionsData.upload as any,
-          errorsList.upload || []
+          serverValidationErrorsList.upload || [],
+          serverValidationErrorsList.upload || []
         ),
       });
 
@@ -750,24 +775,28 @@ describe('SubmissionObjectEffects test suite', () => {
           submissionId,
           'traditionalpageone',
           mockSectionsDataTwo.traditionalpageone as any,
-          []
+          [],
+          errorsList.traditionalpageone
         ),
         c: new UpdateSectionDataAction(
           submissionId,
           'traditionalpagetwo',
           mockSectionsDataTwo.traditionalpagetwo as any,
+          errorsList.traditionalpagetwo || [],
           errorsList.traditionalpagetwo || []
         ),
         d: new UpdateSectionDataAction(
           submissionId,
           'license',
           mockSectionsDataTwo.license as any,
+          errorsList.license || [],
           errorsList.license || []
         ),
         e: new UpdateSectionDataAction(
           submissionId,
           'upload',
           mockSectionsDataTwo.upload as any,
+          errorsList.upload || [],
           errorsList.upload || []
         ),
       });
@@ -880,18 +909,21 @@ describe('SubmissionObjectEffects test suite', () => {
             submissionId,
             'traditionalpageone',
             mockSectionsData.traditionalpageone as any,
+            errorsList.traditionalpageone || [],
             errorsList.traditionalpageone || []
           ),
           new UpdateSectionDataAction(
             submissionId,
             'license',
             mockSectionsData.license as any,
+            errorsList.license || [],
             errorsList.license || []
           ),
           new UpdateSectionDataAction(
             submissionId,
             'upload',
             mockSectionsData.upload as any,
+            errorsList.upload || [],
             errorsList.upload || []
           )
         ]

src/app/submission/objects/submission-objects.effects.ts

@@ -5,16 +5,7 @@ import { TranslateService } from '@ngx-translate/core';
 import { isEqual, union } from 'lodash';
 
 import { from as observableFrom, Observable, of as observableOf } from 'rxjs';
-import {
+import { catchError, filter, map, mergeMap, switchMap, take, tap, withLatestFrom } from 'rxjs/operators';
-  catchError,
-  filter,
-  map,
-  mergeMap,
-  switchMap,
-  take,
-  tap,
-  withLatestFrom
-} from 'rxjs/operators';
 import { SubmissionObject } from '../../core/submission/models/submission-object.model';
 import { WorkflowItem } from '../../core/submission/models/workflowitem.model';
 import { WorkspaceitemSectionUploadObject } from '../../core/submission/models/workspaceitem-section-upload.model';
@@ -83,7 +74,7 @@ export class SubmissionObjectEffects {
         } else {
           sectionData = action.payload.item.metadata;
         }
-        const sectionErrors = null;
+        const sectionErrors = isNotEmpty(action.payload.errors) ? (action.payload.errors[sectionId] || null) : null;
         mappedActions.push(
           new InitSectionAction(
             action.payload.submissionId,
@@ -232,10 +223,7 @@ export class SubmissionObjectEffects {
     switchMap(([action, state]: [DepositSubmissionAction, any]) => {
       return this.submissionService.depositSubmission(state.submission.objects[action.payload.submissionId].selfUrl).pipe(
         map(() => new DepositSubmissionSuccessAction(action.payload.submissionId)),
-        catchError((error) => {
+        catchError((error) => observableOf(new DepositSubmissionErrorAction(action.payload.submissionId))));
-          console.log('submission error', error);
-          return observableOf(new DepositSubmissionErrorAction(action.payload.submissionId));
-        }));
     }));
 
   /**
@@ -297,7 +285,7 @@ export class SubmissionObjectEffects {
         return item$.pipe(
           map((item: Item) => item.metadata),
           filter((metadata) => !isEqual(action.payload.data, metadata)),
-          map((metadata: any) => new UpdateSectionDataAction(action.payload.submissionId, action.payload.sectionId, metadata, action.payload.errors, action.payload.metadata))
+          map((metadata: any) => new UpdateSectionDataAction(action.payload.submissionId, action.payload.sectionId, metadata, action.payload.errorsToShow, action.payload.serverValidationErrors, action.payload.metadata))
         );
       } else {
         return observableOf(new UpdateSectionDataSuccessAction());
@@ -413,7 +401,7 @@ export class SubmissionObjectEffects {
 
           const sectionForm = getForm(forms, currentState, sectionId);
           const filteredErrors = filterErrors(sectionForm, sectionErrors, currentState.sections[sectionId].sectionType, notify);
-          mappedActions.push(new UpdateSectionDataAction(submissionId, sectionId, sectionData, filteredErrors));
+          mappedActions.push(new UpdateSectionDataAction(submissionId, sectionId, sectionData, filteredErrors, sectionErrors));
         }
       });
     }

src/app/submission/objects/submission-objects.reducer.spec.ts

@@ -28,7 +28,8 @@ import {
   SaveSubmissionSectionFormAction,
   SaveSubmissionSectionFormErrorAction,
   SaveSubmissionSectionFormSuccessAction,
-  SectionStatusChangeAction, SubmissionObjectAction,
+  SectionStatusChangeAction,
+  SubmissionObjectAction,
   UpdateSectionDataAction
 } from './submission-objects.actions';
 import { SectionsType } from '../sections/sections-type';
@@ -68,7 +69,7 @@ describe('submissionReducer test suite', () => {
       }
     };
 
-    const action = new InitSubmissionFormAction(collectionId, submissionId, selfUrl, submissionDefinition, {}, new Item(), []);
+    const action = new InitSubmissionFormAction(collectionId, submissionId, selfUrl, submissionDefinition, {}, new Item(), null);
     const newState = submissionObjectReducer({}, action);
 
     expect(newState).toEqual(expectedState);
@@ -237,12 +238,13 @@ describe('submissionReducer test suite', () => {
       collapsed: false,
       enabled: true,
       data: {},
-      errors: [],
+      errorsToShow: [],
+      serverValidationErrors: [],
       isLoading: false,
-      isValid: false
+      isValid: true
     } as any;
 
-    let action: any = new InitSubmissionFormAction(collectionId, submissionId, selfUrl, submissionDefinition, {}, new Item(), []);
+    let action: any = new InitSubmissionFormAction(collectionId, submissionId, selfUrl, submissionDefinition, {}, new Item(), null);
     let newState = submissionObjectReducer({}, action);
 
     action = new InitSectionAction(
@@ -329,7 +331,7 @@ describe('submissionReducer test suite', () => {
       ]
     } as any;
 
-    const action = new UpdateSectionDataAction(submissionId, 'traditionalpageone', data, []);
+    const action = new UpdateSectionDataAction(submissionId, 'traditionalpageone', data, [], []);
     const newState = submissionObjectReducer(initState, action);
 
     expect(newState[826].sections.traditionalpageone.data).toEqual(data);
@@ -340,7 +342,7 @@ describe('submissionReducer test suite', () => {
     } as any;
     const metadata = ['dc.title', 'dc.contributor.author'];
 
-    const action = new UpdateSectionDataAction(submissionId, 'traditionalpageone', data, [], metadata);
+    const action = new UpdateSectionDataAction(submissionId, 'traditionalpageone', data, [], [], metadata);
     const newState = submissionObjectReducer(initState, action);
 
     expect(newState[826].sections.traditionalpageone.metadata).toEqual(metadata);
@@ -354,10 +356,10 @@ describe('submissionReducer test suite', () => {
       }
     ];
 
-    const action = new UpdateSectionDataAction(submissionId, 'traditionalpageone', {}, errors);
+    const action = new UpdateSectionDataAction(submissionId, 'traditionalpageone', {}, errors, errors);
     const newState = submissionObjectReducer(initState, action);
 
-    expect(newState[826].sections.traditionalpageone.errors).toEqual(errors);
+    expect(newState[826].sections.traditionalpageone.errorsToShow).toEqual(errors);
   });
 
   it('should remove all submission section errors properly', () => {
@@ -366,7 +368,7 @@ describe('submissionReducer test suite', () => {
 
     newState = submissionObjectReducer(initState, action);
 
-    expect(newState[826].sections.traditionalpageone.errors).toEqual([]);
+    expect(newState[826].sections.traditionalpageone.errorsToShow).toEqual([]);
   });
 
   it('should add submission section error properly', () => {
@@ -378,7 +380,7 @@ describe('submissionReducer test suite', () => {
     const action = new InertSectionErrorsAction(submissionId, 'traditionalpageone', error);
     const newState = submissionObjectReducer(initState, action);
 
-    expect(newState[826].sections.traditionalpageone.errors).toEqual([error]);
+    expect(newState[826].sections.traditionalpageone.errorsToShow).toEqual([error]);
   });
 
   it('should remove specified submission section error/s properly', () => {
@@ -402,21 +404,21 @@ describe('submissionReducer test suite', () => {
       message: 'error.validation.required'
     }];
 
-    let action: any = new UpdateSectionDataAction(submissionId, 'traditionalpageone', {}, errors);
+    let action: any = new UpdateSectionDataAction(submissionId, 'traditionalpageone', {}, errors, errors);
     let newState = submissionObjectReducer(initState, action);
 
     action = new DeleteSectionErrorsAction(submissionId, 'traditionalpageone', error);
     newState = submissionObjectReducer(newState, action);
 
-    expect(newState[826].sections.traditionalpageone.errors).toEqual(expectedErrors);
+    expect(newState[826].sections.traditionalpageone.errorsToShow).toEqual(expectedErrors);
 
-    action = new UpdateSectionDataAction(submissionId, 'traditionalpageone', {}, errors);
+    action = new UpdateSectionDataAction(submissionId, 'traditionalpageone', {}, errors, errors);
     newState = submissionObjectReducer(initState, action);
 
     action = new DeleteSectionErrorsAction(submissionId, 'traditionalpageone', errors);
     newState = submissionObjectReducer(newState, action);
 
-    expect(newState[826].sections.traditionalpageone.errors).toEqual([]);
+    expect(newState[826].sections.traditionalpageone.errorsToShow).toEqual([]);
   });
 
   it('should add a new file', () => {

src/app/submission/objects/submission-objects.reducer.ts

@@ -1,4 +1,4 @@
-import { hasValue, isNotEmpty, isNotNull, isUndefined } from '../../shared/empty.util';
+import { hasValue, isEmpty, isNotEmpty, isNotNull, isUndefined } from '../../shared/empty.util';
 import { differenceWith, findKey, isEqual, uniqWith } from 'lodash';
 
 import {
@@ -97,9 +97,14 @@ export interface SubmissionSectionObject {
   data: WorkspaceitemSectionDataType;
 
   /**
-   * The list of the section errors
+   * The list of the section's errors to show. It contains the error list to display when section is not pristine
    */
-  errors: SubmissionSectionError[];
+  errorsToShow: SubmissionSectionError[];
+
+  /**
+   * The list of the section's errors detected by the server. They may not be shown yet if section is pristine
+   */
+  serverValidationErrors: SubmissionSectionError[];
 
   /**
    * A boolean representing if this section is loading
@@ -117,6 +122,13 @@ export interface SubmissionSectionObject {
   formId: string;
 }
 
+/**
+ * An interface to represent section error
+ */
+export interface SubmissionError {
+  [submissionId: string]: SubmissionSectionError[];
+}
+
 /**
  * An interface to represent section error
  */
@@ -332,7 +344,7 @@ const removeError = (state: SubmissionObjectState, action: DeleteSectionErrorsAc
     if (Array.isArray(errors)) {
       filteredErrors = differenceWith(errors, errors, isEqual);
     } else {
-      filteredErrors = state[ submissionId ].sections[ sectionId ].errors
+      filteredErrors = state[ submissionId ].sections[ sectionId ].errorsToShow
         .filter((currentError) => currentError.path !== errors.path || !isEqual(currentError, errors));
     }
 
@@ -340,7 +352,7 @@ const removeError = (state: SubmissionObjectState, action: DeleteSectionErrorsAc
       [ submissionId ]: Object.assign({}, state[ submissionId ], {
         sections: Object.assign({}, state[ submissionId ].sections, {
           [ sectionId ]: Object.assign({}, state[ submissionId ].sections [ sectionId ], {
-            errors: filteredErrors
+            errorsToShow: filteredErrors
           })
         })
       })
@@ -354,13 +366,13 @@ const addError = (state: SubmissionObjectState, action: InertSectionErrorsAction
   const { submissionId, sectionId, error } = action.payload;
 
   if (hasValue(state[ submissionId ].sections[ sectionId ])) {
-    const errors = uniqWith(state[ submissionId ].sections[ sectionId ].errors.concat(error), isEqual);
+    const errorsToShow = uniqWith(state[ submissionId ].sections[ sectionId ].errorsToShow.concat(error), isEqual);
 
     return Object.assign({}, state, {
       [ submissionId ]: Object.assign({}, state[ submissionId ], {
         activeSection: state[ action.payload.submissionId ].activeSection,        sections: Object.assign({}, state[ submissionId ].sections, {
           [ sectionId ]: Object.assign({}, state[ action.payload.submissionId ].sections [ action.payload.sectionId ], {
-            errors
+            errorsToShow
           })
         }),
       })
@@ -378,7 +390,7 @@ const addError = (state: SubmissionObjectState, action: InertSectionErrorsAction
  * @param action
  *    a RemoveSectionErrorsAction
  * @return SubmissionObjectState
- *    the new state, with the section's errors updated.
+ *    the new state, with the section's errorsToShow updated.
  */
 function removeSectionErrors(state: SubmissionObjectState, action: RemoveSectionErrorsAction): SubmissionObjectState {
   if (isNotEmpty(state[ action.payload.submissionId ])
@@ -387,7 +399,7 @@ function removeSectionErrors(state: SubmissionObjectState, action: RemoveSection
       [ action.payload.submissionId ]: Object.assign({}, state[ action.payload.submissionId ], {
         sections: Object.assign({}, state[ action.payload.submissionId ].sections, {
           [ action.payload.sectionId ]: Object.assign({}, state[ action.payload.submissionId ].sections [ action.payload.sectionId ], {
-            errors: []
+            errorsToShow: []
           })
         })
       })
@@ -644,9 +656,10 @@ function initSection(state: SubmissionObjectState, action: InitSectionAction): S
             collapsed: false,
             enabled: action.payload.enabled,
             data: action.payload.data,
-            errors: action.payload.errors || [],
+            errorsToShow: [],
+            serverValidationErrors: action.payload.errors || [],
             isLoading: false,
-            isValid: false
+            isValid: isEmpty(action.payload.errors)
           }
         })
       })
@@ -702,7 +715,8 @@ function updateSectionData(state: SubmissionObjectState, action: UpdateSectionDa
           [ action.payload.sectionId ]: Object.assign({}, state[ action.payload.submissionId ].sections [ action.payload.sectionId ], {
             enabled: true,
             data: action.payload.data,
-            errors: action.payload.errors,
+            errorsToShow: action.payload.errorsToShow,
+            serverValidationErrors: action.payload.serverValidationErrors,
             metadata: reduceSectionMetadata(action.payload.metadata, state[ action.payload.submissionId ].sections [ action.payload.sectionId ].metadata)
           })
         })

src/app/submission/sections/cc-license/submission-section-cc-licenses.component.spec.ts

@@ -27,7 +27,8 @@ describe('SubmissionSectionCcLicensesComponent', () => {
     config: 'test config',
     mandatory: true,
     data: {},
-    errors: [],
+    errorsToShow: [],
+    serverValidationErrors: [],
     header: 'test header',
     id: 'test section id',
     sectionType: SectionsType.SubmissionForm

src/app/submission/sections/cc-license/submission-section-cc-licenses.component.ts

@@ -1,11 +1,7 @@
 import { Component, Inject } from '@angular/core';
 import { Observable, of as observableOf, Subscription } from 'rxjs';
-import {
+import { Field, Option, SubmissionCcLicence } from '../../../core/submission/models/submission-cc-license.model';
-  Field,
+import { getFirstSucceededRemoteData, getRemoteDataPayload } from '../../../core/shared/operators';
-  Option,
-  SubmissionCcLicence
-} from '../../../core/submission/models/submission-cc-license.model';
-import { getRemoteDataPayload, getFirstSucceededRemoteData } from '../../../core/shared/operators';
 import { distinctUntilChanged, filter, map, take } from 'rxjs/operators';
 import { SubmissionCcLicenseDataService } from '../../../core/submission/submission-cc-license-data.service';
 import { NgbModal, NgbModalRef } from '@ng-bootstrap/ng-bootstrap';
@@ -234,7 +230,7 @@ export class SubmissionSectionCcLicensesComponent extends SectionModelComponent
     this.subscriptions.push(
       this.sectionService.getSectionState(this.submissionId, this.sectionData.id, SectionsType.CcLicense).pipe(
         filter((sectionState) => {
-          return isNotEmpty(sectionState) && (isNotEmpty(sectionState.data) || isNotEmpty(sectionState.errors));
+          return isNotEmpty(sectionState) && (isNotEmpty(sectionState.data) || isNotEmpty(sectionState.errorsToShow));
         }),
         distinctUntilChanged(),
         map((sectionState) => sectionState.data as WorkspaceitemSectionCcLicenseObject),

src/app/submission/sections/container/section-container.component.spec.ts

@@ -22,11 +22,12 @@ const sectionState = {
   header: 'submit.progressbar.describe.stepone',
     config: 'https://rest.api/dspace-spring-rest/api/config/submissionforms/traditionalpageone',
     mandatory: true,
-    sectionType: 'submission-form',
+    sectionType: SectionsType.SubmissionForm,
     collapsed: false,
     enabled: true,
     data: {},
-    errors: [],
+    errorsToShow:	[],
+    serverValidationErrors:	[],
     isLoading: false,
     isValid: false
 } as any;
@@ -35,7 +36,8 @@ const sectionObject: SectionDataObject = {
   config:	'https://dspace7.4science.it/or2018/api/config/submissionforms/traditionalpageone',
   mandatory:	true,
   data:		{},
-  errors:		[],
+  errorsToShow:		[],
+  serverValidationErrors:		[],
   header:	'submit.progressbar.describe.stepone',
   id:	'traditionalpageone',
   sectionType:	SectionsType.SubmissionForm
@@ -56,6 +58,7 @@ describe('SubmissionSectionContainerComponent test suite', () => {
   function init() {
     sectionsServiceStub.isSectionValid.and.returnValue(observableOf(true));
     sectionsServiceStub.getSectionState.and.returnValue(observableOf(sectionState));
+    sectionsServiceStub.getShownSectionErrors.and.returnValue(observableOf([]));
     submissionServiceStub.getActiveSectionId.and.returnValue(observableOf('traditionalpageone'));
   }
 

src/app/submission/sections/form/section-form-operations.service.ts

@@ -300,7 +300,6 @@ export class SectionFormOperationsService {
 
     const path = this.getFieldPathFromEvent(event);
     const value = this.getFieldValueFromChangeEvent(event);
-    console.log(value);
     if (this.formBuilder.isQualdropGroup(event.model as DynamicFormControlModel)) {
       this.dispatchOperationsFromMap(this.getQualdropValueMap(event), pathCombiner, event, previousValue);
     } else if (event.context && event.context instanceof DynamicFormArrayGroupModel) {

src/app/submission/sections/form/section-form.component.spec.ts

@@ -44,6 +44,7 @@ import { SubmissionObjectDataService } from '../../../core/submission/submission
 import { ObjectCacheService } from '../../../core/cache/object-cache.service';
 import { RequestService } from '../../../core/data/request.service';
 import { createSuccessfulRemoteDataObject$ } from '../../../shared/remote-data.utils';
+import { cold } from 'jasmine-marbles';
 
 function getMockSubmissionFormsConfigService(): SubmissionFormsConfigService {
   return jasmine.createSpyObj('FormOperationsService', {
@@ -59,7 +60,8 @@ const sectionObject: SectionDataObject = {
   config: 'https://dspace7.4science.it/or2018/api/config/submissionforms/traditionalpageone',
   mandatory: true,
   data: {},
-  errors: [],
+  errorsToShow: [],
+  serverValidationErrors: [],
   header: 'submit.progressbar.describe.stepone',
   id: 'traditionalpageone',
   sectionType: SectionsType.SubmissionForm
@@ -200,6 +202,7 @@ describe('SubmissionSectionformComponent test suite', () => {
       formService.isValid.and.returnValue(observableOf(true));
       formConfigService.findByHref.and.returnValue(observableOf(testFormConfiguration));
       sectionsServiceStub.getSectionData.and.returnValue(observableOf(sectionData));
+      sectionsServiceStub.getSectionServerErrors.and.returnValue(observableOf([]));
 
       const html = `
         <ds-submission-section-form></ds-submission-section-form>`;
@@ -246,6 +249,7 @@ describe('SubmissionSectionformComponent test suite', () => {
       formService.isValid.and.returnValue(observableOf(true));
       formConfigService.findByHref.and.returnValue(createSuccessfulRemoteDataObject$(testFormConfiguration));
       sectionsServiceStub.getSectionData.and.returnValue(observableOf(sectionData));
+      sectionsServiceStub.getSectionServerErrors.and.returnValue(observableOf([]));
       spyOn(comp, 'initForm');
       spyOn(comp, 'subscriptions');
 
@@ -253,7 +257,7 @@ describe('SubmissionSectionformComponent test suite', () => {
       fixture.detectChanges();
 
       expect(compAsAny.formConfig).toEqual(testFormConfiguration);
-      expect(comp.sectionData.errors).toEqual([]);
+      expect(comp.sectionData.errorsToShow).toEqual([]);
       expect(comp.sectionData.data).toEqual(sectionData);
       expect(comp.isLoading).toBeFalsy();
       expect(comp.initForm).toHaveBeenCalledWith(sectionData);
@@ -322,7 +326,7 @@ describe('SubmissionSectionformComponent test suite', () => {
       };
       const sectionError = [];
       comp.sectionData.data = {};
-      comp.sectionData.errors = [];
+      comp.sectionData.errorsToShow = [];
       compAsAny.formData = {};
       compAsAny.sectionMetadata = ['dc.title'];
 
@@ -342,7 +346,7 @@ describe('SubmissionSectionformComponent test suite', () => {
         'dc.title': [new FormFieldMetadataValueObject('test')]
       };
       comp.sectionData.data = {};
-      comp.sectionData.errors = [];
+      comp.sectionData.errorsToShow = [];
       compAsAny.formData = sectionData;
       compAsAny.sectionMetadata = ['dc.title'];
 
@@ -368,7 +372,8 @@ describe('SubmissionSectionformComponent test suite', () => {
     it('should check for error', () => {
       comp.isUpdating = false;
       comp.formId = 'test';
-      comp.sectionData.errors = [];
+      comp.sectionData.errorsToShow = [];
+      comp.sectionData.serverValidationErrors = [];
 
       comp.checksForErrors(parsedSectionErrors);
 
@@ -379,7 +384,37 @@ describe('SubmissionSectionformComponent test suite', () => {
         parsedSectionErrors,
         []
       );
-      expect(comp.sectionData.errors).toEqual(parsedSectionErrors);
+      expect(comp.sectionData.errorsToShow).toEqual(parsedSectionErrors);
+    });
+
+    it('should return a valid status when form is valid and there are no server validation errors', () => {
+      formService.isValid.and.returnValue(observableOf(true));
+      sectionsServiceStub.getSectionServerErrors.and.returnValue(observableOf([]));
+      const expected = cold('(b|)', {
+        b: true
+      });
+
+      expect(compAsAny.getSectionStatus()).toBeObservable(expected);
+    });
+
+    it('should return an invalid status when form is valid and there are server validation errors', () => {
+      formService.isValid.and.returnValue(observableOf(true));
+      sectionsServiceStub.getSectionServerErrors.and.returnValue(observableOf(parsedSectionErrors));
+      const expected = cold('(b|)', {
+        b: false
+      });
+
+      expect(compAsAny.getSectionStatus()).toBeObservable(expected);
+    });
+
+    it('should return an invalid status when form is not valid and there are no server validation errors', () => {
+      formService.isValid.and.returnValue(observableOf(false));
+      sectionsServiceStub.getSectionServerErrors.and.returnValue(observableOf([]));
+      const expected = cold('(b|)', {
+        b: false
+      });
+
+      expect(compAsAny.getSectionStatus()).toBeObservable(expected);
     });
 
     it('should subscribe to state properly', () => {
@@ -392,7 +427,7 @@ describe('SubmissionSectionformComponent test suite', () => {
       };
       const sectionState = {
         data: sectionData,
-        errors: parsedSectionErrors
+        errorsToShow: parsedSectionErrors
       };
 
       formService.getFormData.and.returnValue(observableOf(formData));
@@ -402,7 +437,7 @@ describe('SubmissionSectionformComponent test suite', () => {
 
       expect(compAsAny.subs.length).toBe(2);
       expect(compAsAny.formData).toEqual(formData);
-      expect(comp.updateForm).toHaveBeenCalledWith(sectionState.data, sectionState.errors);
+      expect(comp.updateForm).toHaveBeenCalledWith(sectionState.data, sectionState.errorsToShow);
 
     });
 

src/app/submission/sections/form/section-form.component.ts

@@ -2,15 +2,7 @@ import { ChangeDetectorRef, Component, Inject, ViewChild } from '@angular/core';
 import { DynamicFormControlEvent, DynamicFormControlModel } from '@ng-dynamic-forms/core';
 
 import { combineLatest as observableCombineLatest, Observable, Subscription } from 'rxjs';
-import {
+import { distinctUntilChanged, filter, find, map, mergeMap, take, tap } from 'rxjs/operators';
-  distinctUntilChanged,
-  filter,
-  find,
-  map,
-  take,
-  tap,
-  mergeMap
-} from 'rxjs/operators';
 import { TranslateService } from '@ngx-translate/core';
 import { findIndex, isEqual } from 'lodash';
 
@@ -19,7 +11,7 @@ import { FormComponent } from '../../../shared/form/form.component';
 import { FormService } from '../../../shared/form/form.service';
 import { SectionModelComponent } from '../models/section.model';
 import { SubmissionFormsConfigService } from '../../../core/config/submission-forms-config.service';
-import { hasValue, isNotEmpty, isUndefined } from '../../../shared/empty.util';
+import { hasValue, isEmpty, isNotEmpty, isUndefined } from '../../../shared/empty.util';
 import { JsonPatchOperationPathCombiner } from '../../../core/json-patch/builder/json-patch-operation-path-combiner';
 import { SubmissionFormsModel } from '../../../core/config/models/config-submission-forms.model';
 import { SubmissionSectionError, SubmissionSectionObject } from '../../objects/submission-objects.reducer';
@@ -183,7 +175,7 @@ export class SubmissionSectionformComponent extends SectionModelComponent {
       take(1))
       .subscribe(([sectionData, workspaceItem]: [WorkspaceitemSectionFormObject, WorkspaceItem]) => {
         if (isUndefined(this.formModel)) {
-          this.sectionData.errors = [];
+          // this.sectionData.errorsToShow = [];
           this.workspaceItem = workspaceItem;
           // Is the first loading so init form
           this.initForm(sectionData);
@@ -211,7 +203,14 @@ export class SubmissionSectionformComponent extends SectionModelComponent {
    *     the section status
    */
   protected getSectionStatus(): Observable<boolean> {
-    return this.formService.isValid(this.formId);
+    const formStatus$ = this.formService.isValid(this.formId);
+    const serverValidationStatus$ = this.sectionService.getSectionServerErrors(this.submissionId, this.sectionData.id).pipe(
+      map((validationErrors) => isEmpty(validationErrors))
+    );
+
+    return observableCombineLatest([formStatus$, serverValidationStatus$]).pipe(
+      map(([formValidation, serverSideValidation]: [boolean, boolean]) => formValidation && serverSideValidation)
+    );
   }
 
   /**
@@ -263,7 +262,7 @@ export class SubmissionSectionformComponent extends SectionModelComponent {
         this.submissionService.getSubmissionScope()
       );
       const sectionMetadata = this.sectionService.computeSectionConfiguredMetadata(this.formConfig);
-      this.sectionService.updateSectionData(this.submissionId, this.sectionData.id, sectionData, [], sectionMetadata);
+      this.sectionService.updateSectionData(this.submissionId, this.sectionData.id, sectionData, this.sectionData.errorsToShow, this.sectionData.serverValidationErrors, sectionMetadata);
 
     } catch (e) {
       const msg: string = this.translate.instant('error.submission.sections.init-form-error') + e.toString();
@@ -296,10 +295,10 @@ export class SubmissionSectionformComponent extends SectionModelComponent {
         this.checksForErrors(errors);
         this.isUpdating = false;
         this.cdr.detectChanges();
-      } else if (isNotEmpty(errors) || isNotEmpty(this.sectionData.errors)) {
+      } else if (isNotEmpty(errors) || isNotEmpty(this.sectionData.errorsToShow)) {
         this.checksForErrors(errors);
       }
-    } else if (isNotEmpty(errors) || isNotEmpty(this.sectionData.errors)) {
+    } else if (isNotEmpty(errors) || isNotEmpty(this.sectionData.errorsToShow)) {
       this.checksForErrors(errors);
     }
 
@@ -315,8 +314,8 @@ export class SubmissionSectionformComponent extends SectionModelComponent {
     this.formService.isFormInitialized(this.formId).pipe(
       find((status: boolean) => status === true && !this.isUpdating))
       .subscribe(() => {
-        this.sectionService.checkSectionErrors(this.submissionId, this.sectionData.id, this.formId, errors, this.sectionData.errors);
+        this.sectionService.checkSectionErrors(this.submissionId, this.sectionData.id, this.formId, errors, this.sectionData.errorsToShow);
-        this.sectionData.errors = errors;
+        this.sectionData.errorsToShow = errors;
         this.cdr.detectChanges();
       });
   }
@@ -340,13 +339,13 @@ export class SubmissionSectionformComponent extends SectionModelComponent {
        */
       this.sectionService.getSectionState(this.submissionId, this.sectionData.id, this.sectionData.sectionType).pipe(
         filter((sectionState: SubmissionSectionObject) => {
-          return isNotEmpty(sectionState) && (isNotEmpty(sectionState.data) || isNotEmpty(sectionState.errors));
+          return isNotEmpty(sectionState) && (isNotEmpty(sectionState.data) || isNotEmpty(sectionState.errorsToShow));
         }),
         distinctUntilChanged())
         .subscribe((sectionState: SubmissionSectionObject) => {
           this.fieldsOnTheirWayToBeRemoved = new Map();
           this.sectionMetadata = sectionState.metadata;
-          this.updateForm(sectionState.data as WorkspaceitemSectionFormObject, sectionState.errors);
+          this.updateForm(sectionState.data as WorkspaceitemSectionFormObject, sectionState.errorsToShow);
         })
     );
   }
@@ -367,11 +366,22 @@ export class SubmissionSectionformComponent extends SectionModelComponent {
     const metadata = this.formOperationsService.getFieldPathSegmentedFromChangeEvent(event);
     const value = this.formOperationsService.getFieldValueFromChangeEvent(event);
 
-    if (environment.submission.autosave.metadata.indexOf(metadata) !== -1 && isNotEmpty(value)) {
+    if ((environment.submission.autosave.metadata.indexOf(metadata) !== -1 && isNotEmpty(value)) || this.hasRelatedCustomError(metadata)) {
       this.submissionService.dispatchSave(this.submissionId);
     }
   }
 
+  private hasRelatedCustomError(medatata): boolean {
+    const index = findIndex(this.sectionData.errorsToShow, {path: this.pathCombiner.getPath(medatata).path});
+    if (index  !== -1) {
+      const error = this.sectionData.errorsToShow[index];
+      const validator = error.message.replace('error.validation.', '');
+      return !environment.form.validatorMap.hasOwnProperty(validator);
+    } else {
+      return false;
+    }
+  }
+
   /**
    * Method called when a form dfFocus event is fired.
    * Initialize [FormFieldPreviousValueObject] instance.

src/app/submission/sections/license/section-license.component.spec.ts

@@ -70,7 +70,8 @@ const sectionObject: SectionDataObject = {
     acceptanceDate: null,
     granted: false
   },
-  errors: [],
+  errorsToShow: [],
+  serverValidationErrors: [],
   header: 'submit.progressbar.describe.license',
   id: 'license',
   sectionType: SectionsType.License

src/app/submission/sections/models/section-data.model.ts

@@ -18,9 +18,14 @@ export interface SectionDataObject {
   data: WorkspaceitemSectionDataType;
 
   /**
-   * The list of the section errors
+   * The list of the section's errors to show
    */
-  errors: SubmissionSectionError[];
+  errorsToShow: SubmissionSectionError[];
+
+  /**
+   * The list of the section's errors detected by the server
+   */
+  serverValidationErrors: SubmissionSectionError[];
 
   /**
    * The section header

src/app/submission/sections/sections.directive.ts

@@ -6,7 +6,7 @@ import { uniq } from 'lodash';
 
 import { SectionsService } from './sections.service';
 import { hasValue, isNotEmpty, isNotNull } from '../../shared/empty.util';
-import { SubmissionSectionError, SubmissionSectionObject } from '../objects/submission-objects.reducer';
+import { SubmissionSectionError } from '../objects/submission-objects.reducer';
 import parseSectionErrorPaths, { SectionErrorPath } from '../utils/parseSectionErrorPaths';
 import { SubmissionService } from '../submission.service';
 import { SectionsType } from './sections-type';
@@ -111,8 +111,7 @@ export class SectionsDirective implements OnDestroy, OnInit {
       }));
 
     this.subs.push(
-      this.sectionService.getSectionState(this.submissionId, this.sectionId, this.sectionType).pipe(
+      this.sectionService.getShownSectionErrors(this.submissionId, this.sectionId, this.sectionType)
-        map((state: SubmissionSectionObject) => state.errors))
         .subscribe((errors: SubmissionSectionError[]) => {
           if (isNotEmpty(errors)) {
             errors.forEach((errorItem: SubmissionSectionError) => {

src/app/submission/sections/sections.service.spec.ts

@@ -28,13 +28,15 @@ import {
   SectionStatusChangeAction,
   UpdateSectionDataAction
 } from '../objects/submission-objects.actions';
-import { FormAddError, FormClearErrorsAction, FormRemoveErrorAction } from '../../shared/form/form.actions';
+import { FormClearErrorsAction } from '../../shared/form/form.actions';
 import parseSectionErrors from '../utils/parseSectionErrors';
 import { SubmissionScopeType } from '../../core/submission/submission-scope-type';
 import { SubmissionSectionError } from '../objects/submission-objects.reducer';
 import { getMockScrollToService } from '../../shared/mocks/scroll-to-service.mock';
 import { storeModuleConfig } from '../../app.reducer';
 import { SectionsType } from './sections-type';
+import { FormService } from '../../shared/form/form.service';
+import { getMockFormService } from '../../shared/mocks/form-service.mock';
 
 describe('SectionsService test suite', () => {
   let notificationsServiceStub: NotificationsServiceStub;
@@ -57,6 +59,8 @@ describe('SectionsService test suite', () => {
     select: jasmine.createSpy('select')
   });
 
+  const formService: any = getMockFormService();
+
   beforeEach(waitForAsync(() => {
     TestBed.configureTestingModule({
       imports: [
@@ -74,6 +78,7 @@ describe('SectionsService test suite', () => {
         { provide: SubmissionService, useClass: SubmissionServiceStub },
         { provide: TranslateService, useValue: getMockTranslateService() },
         { provide: Store, useValue: store },
+        { provide: FormService, useValue: formService },
         SectionsService
       ]
     }).compileComponents();
@@ -98,22 +103,23 @@ describe('SectionsService test suite', () => {
     it('should dispatch a new FormAddError for each section\'s error', () => {
       service.checkSectionErrors(submissionId, sectionId, formId, sectionErrors[sectionId]);
 
-      expect(store.dispatch).toHaveBeenCalledWith(new FormAddError(
+      expect(formService.addError).toHaveBeenCalledWith(
         formId,
-        'dc_contributor_author',
+        'dc.contributor.author',
         0,
-        'error.validation.required'));
+        'error.validation.required');
 
-      expect(store.dispatch).toHaveBeenCalledWith(new FormAddError(
+      expect(formService.addError).toHaveBeenCalledWith(
         formId,
-        'dc_title',
+        'dc.title',
         0,
-        'error.validation.required'));
+        'error.validation.required');
 
-      expect(store.dispatch).toHaveBeenCalledWith(new FormAddError(formId,
+      expect(formService.addError).toHaveBeenCalledWith(
-        'dc_date_issued',
+        formId,
+        'dc.date.issued',
         0,
-        'error.validation.required'));
+        'error.validation.required');
     });
 
     it('should dispatch a new FormRemoveErrorAction for each section\'s error that no longer exists', () => {
@@ -123,21 +129,21 @@ describe('SectionsService test suite', () => {
 
       service.checkSectionErrors(submissionId, sectionId, formId, currentErrors, prevErrors);
 
-      expect(store.dispatch).toHaveBeenCalledWith(new FormAddError(
+      expect(formService.addError).toHaveBeenCalledWith(
         formId,
-        'dc_contributor_author',
+        'dc.contributor.author',
         0,
-        'error.validation.required'));
+        'error.validation.required');
 
-      expect(store.dispatch).toHaveBeenCalledWith(new FormAddError(
+      expect(formService.addError).toHaveBeenCalledWith(
         formId,
-        'dc_title',
+        'dc.title',
         0,
-        'error.validation.required'));
+        'error.validation.required');
-      expect(store.dispatch).toHaveBeenCalledWith(new FormRemoveErrorAction(
+      expect(formService.removeError).toHaveBeenCalledWith(
         formId,
-        'dc_date_issued',
+        'dc.date.issued',
-        0));
+        0);
     });
   });
 
@@ -417,7 +423,7 @@ describe('SectionsService test suite', () => {
       scheduler.schedule(() => service.updateSectionData(submissionId, sectionId, data, []));
       scheduler.flush();
 
-      expect(store.dispatch).toHaveBeenCalledWith(new UpdateSectionDataAction(submissionId, sectionId, data, []));
+      expect(store.dispatch).toHaveBeenCalledWith(new UpdateSectionDataAction(submissionId, sectionId, data, [], []));
     });
 
     it('should dispatch a new UpdateSectionDataAction and display a new notification when section is not enabled', () => {
@@ -429,7 +435,7 @@ describe('SectionsService test suite', () => {
       scheduler.schedule(() => service.updateSectionData(submissionId, sectionId, data, []));
       scheduler.flush();
 
-      expect(store.dispatch).toHaveBeenCalledWith(new UpdateSectionDataAction(submissionId, sectionId, data, []));
+      expect(store.dispatch).toHaveBeenCalledWith(new UpdateSectionDataAction(submissionId, sectionId, data, [], []));
     });
   });
 

src/app/submission/sections/sections.service.ts

@@ -1,11 +1,11 @@
 import { Injectable } from '@angular/core';
 
 import { combineLatest, Observable } from 'rxjs';
-import { distinctUntilChanged, filter, map, take } from 'rxjs/operators';
+import { distinctUntilChanged, filter, map, mergeMap, take } from 'rxjs/operators';
 import { Store } from '@ngrx/store';
 import { TranslateService } from '@ngx-translate/core';
 import { ScrollToConfigOptions, ScrollToService } from '@nicky-lenaers/ngx-scroll-to';
-import { findKey, isEqual } from 'lodash';
+import { findIndex, findKey, isEqual } from 'lodash';
 
 import { SubmissionState } from '../submission.reducers';
 import { hasValue, isEmpty, isNotEmpty, isNotUndefined } from '../../shared/empty.util';
@@ -27,11 +27,12 @@ import {
   submissionObjectFromIdSelector,
   submissionSectionDataFromIdSelector,
   submissionSectionErrorsFromIdSelector,
-  submissionSectionFromIdSelector
+  submissionSectionFromIdSelector,
+  submissionSectionServerErrorsFromIdSelector
 } from '../selectors';
 import { SubmissionScopeType } from '../../core/submission/submission-scope-type';
 import parseSectionErrorPaths, { SectionErrorPath } from '../utils/parseSectionErrorPaths';
-import { FormAddError, FormClearErrorsAction, FormRemoveErrorAction } from '../../shared/form/form.actions';
+import { FormClearErrorsAction } from '../../shared/form/form.actions';
 import { NotificationsService } from '../../shared/notifications/notifications.service';
 import { SubmissionService } from '../submission.service';
 import { WorkspaceitemSectionDataType } from '../../core/submission/models/workspaceitem-sections.model';
@@ -39,6 +40,9 @@ import { SectionsType } from './sections-type';
 import { normalizeSectionData } from '../../core/submission/submission-response-parsing.service';
 import { SubmissionFormsModel } from '../../core/config/models/config-submission-forms.model';
 import { parseReviver } from '@ng-dynamic-forms/core';
+import { FormService } from '../../shared/form/form.service';
+import { JsonPatchOperationPathCombiner } from '../../core/json-patch/builder/json-patch-operation-path-combiner';
+import { FormError } from '../../shared/form/form.reducer';
 
 /**
  * A service that provides methods used in submission process.
@@ -48,13 +52,15 @@ export class SectionsService {
 
   /**
    * Initialize service variables
+   * @param {FormService} formService
    * @param {NotificationsService} notificationsService
    * @param {ScrollToService} scrollToService
    * @param {SubmissionService} submissionService
    * @param {Store<SubmissionState>} store
    * @param {TranslateService} translate
    */
-  constructor(private notificationsService: NotificationsService,
+  constructor(private formService: FormService,
+              private notificationsService: NotificationsService,
               private scrollToService: ScrollToService,
               private submissionService: SubmissionService,
               private store: Store<SubmissionState>,
@@ -95,12 +101,9 @@ export class SectionsService {
 
         errorPaths.forEach((path: SectionErrorPath) => {
           if (path.fieldId) {
-            const fieldId = path.fieldId.replace(/\./g, '_');
-
             // Dispatch action to add form error to the state;
-            const formAddErrorAction = new FormAddError(formId, fieldId, path.fieldIndex, error.message);
+            this.formService.addError(formId, path.fieldId, path.fieldIndex, error.message);
-            this.store.dispatch(formAddErrorAction);
+            dispatchedErrors.push(path.fieldId);
-            dispatchedErrors.push(fieldId);
           }
         });
       });
@@ -111,12 +114,9 @@ export class SectionsService {
 
         errorPaths.forEach((path: SectionErrorPath) => {
           if (path.fieldId) {
-            const fieldId = path.fieldId.replace(/\./g, '_');
+            if (!dispatchedErrors.includes(path.fieldId)) {
-
-            if (!dispatchedErrors.includes(fieldId)) {
               // Dispatch action to remove form error from the state;
-              const formRemoveErrorAction = new FormRemoveErrorAction(formId, fieldId, path.fieldIndex);
+              this.formService.removeError(formId, path.fieldId, path.fieldIndex);
-              this.store.dispatch(formRemoveErrorAction);
             }
           }
         });
@@ -174,7 +174,40 @@ export class SectionsService {
   }
 
   /**
-   * Return the error list object data for the specified section
+   * Get the list of validation errors present in the given section
+   *
+   * @param submissionId
+   *    The submission id
+   * @param sectionId
+   *    The section id
+   * @param sectionType
+   *    The type of section for which retrieve errors
+   */
+  getShownSectionErrors(submissionId: string, sectionId: string, sectionType: SectionsType): Observable<SubmissionSectionError[]> {
+    let errorsState$: Observable<SubmissionSectionError[]>;
+    if (sectionType !== SectionsType.SubmissionForm) {
+      errorsState$ = this.getSectionErrors(submissionId, sectionId);
+    } else {
+      errorsState$ = this.getSectionState(submissionId, sectionId, sectionType).pipe(
+        mergeMap((state: SubmissionSectionObject) => this.formService.getFormErrors(state.formId).pipe(
+          map((formErrors: FormError[]) => {
+            const pathCombiner = new JsonPatchOperationPathCombiner('sections', sectionId);
+            const sectionErrors = formErrors
+              .map((error) => ({
+                path: pathCombiner.getPath(error.fieldId.replace(/\_/g, '.')).path,
+                message: error.message
+              } as SubmissionSectionError))
+              .filter((sectionError: SubmissionSectionError) => findIndex(state.errorsToShow, {path: sectionError.path}) === -1);
+            return [...state.errorsToShow, ...sectionErrors];
+          })
+        ))
+      );
+    }
+
+    return errorsState$;
+  }
+  /**
+   * Return the error list to show for the specified section
    *
    * @param submissionId
    *    The submission id
@@ -188,6 +221,21 @@ export class SectionsService {
       distinctUntilChanged());
   }
 
+  /**
+   * Return the error list detected by the server for the specified section
+   *
+   * @param submissionId
+   *    The submission id
+   * @param sectionId
+   *    The section id
+   * @return Observable<SubmissionSectionError>
+   *    observable of array of [SubmissionSectionError]
+   */
+  public getSectionServerErrors(submissionId: string, sectionId: string): Observable<SubmissionSectionError[]> {
+    return this.store.select(submissionSectionServerErrorsFromIdSelector(submissionId, sectionId)).pipe(
+      distinctUntilChanged());
+  }
+
   /**
    * Return the state object for the specified section
    *
@@ -383,12 +431,23 @@ export class SectionsService {
    *    The section id
    * @param data
    *    The section data
-   * @param errors
+   * @param errorsToShow
-   *    The list of section errors
+   *    The list of the section's errors to show. It contains the error list
+   *    to display when section is not pristine
+   * @param serverValidationErrors
+   *    The list of the section's errors detected by the server.
+   *    They may not be shown yet if section is pristine
    * @param metadata
    *    The section metadata
    */
-  public updateSectionData(submissionId: string, sectionId: string, data: WorkspaceitemSectionDataType, errors: SubmissionSectionError[] = [], metadata?: string[]) {
+  public updateSectionData(
+    submissionId: string,
+    sectionId: string,
+    data: WorkspaceitemSectionDataType,
+    errorsToShow: SubmissionSectionError[] = [],
+    serverValidationErrors: SubmissionSectionError[] = [],
+    metadata?: string[]
+  ) {
     if (isNotEmpty(data)) {
       const isAvailable$ = this.isSectionAvailable(submissionId, sectionId);
       const isEnabled$ = this.isSectionEnabled(submissionId, sectionId);
@@ -397,7 +456,7 @@ export class SectionsService {
         take(1),
         filter(([available, enabled]: [boolean, boolean]) => available))
         .subscribe(([available, enabled]: [boolean, boolean]) => {
-          this.store.dispatch(new UpdateSectionDataAction(submissionId, sectionId, data, errors, metadata));
+          this.store.dispatch(new UpdateSectionDataAction(submissionId, sectionId, data, errorsToShow, serverValidationErrors, metadata));
         });
     }
   }

src/app/submission/sections/upload/section-upload.component.spec.ts

@@ -98,7 +98,8 @@ describe('SubmissionSectionUploadComponent test suite', () => {
       data: {
         files: []
       },
-      errors: [],
+      errorsToShow: [],
+      serverValidationErrors: [],
       header: 'submit.progressbar.describe.upload',
       id: 'upload-id',
       sectionType: SectionsType.Upload

src/app/submission/selectors.ts

@@ -61,5 +61,11 @@ export function submissionSectionDataFromIdSelector(submissionId: string, sectio
 
 export function submissionSectionErrorsFromIdSelector(submissionId: string, sectionId: string): MemoizedSelector<SubmissionState, any> {
   const submissionIdSelector  = submissionSectionFromIdSelector(submissionId, sectionId);
-  return subStateSelector<SubmissionState, SubmissionSectionObject>(submissionIdSelector, 'errors');
+  return subStateSelector<SubmissionState, SubmissionSectionObject>(submissionIdSelector, 'errorsToShow');
+}
+
+
+export function submissionSectionServerErrorsFromIdSelector(submissionId: string, sectionId: string): MemoizedSelector<SubmissionState, any> {
+  const submissionIdSelector  = submissionSectionFromIdSelector(submissionId, sectionId);
+  return subStateSelector<SubmissionState, SubmissionSectionObject>(submissionIdSelector, 'serverValidationErrors');
 }

src/app/submission/submission.service.spec.ts

@@ -1,5 +1,5 @@
 import { StoreModule } from '@ngrx/store';
-import { waitForAsync, fakeAsync, flush, TestBed, tick } from '@angular/core/testing';
+import { fakeAsync, flush, TestBed, tick, waitForAsync } from '@angular/core/testing';
 import { ActivatedRoute, Router } from '@angular/router';
 import { HttpHeaders } from '@angular/common/http';
 
@@ -32,9 +32,7 @@ import {
   SaveSubmissionSectionFormAction,
   SetActiveSectionAction
 } from './objects/submission-objects.actions';
-import {
+import { createFailedRemoteDataObject, } from '../shared/remote-data.utils';
-  createFailedRemoteDataObject,
-} from '../shared/remote-data.utils';
 import { getMockSearchService } from '../shared/mocks/search-service.mock';
 import { getMockRequestService } from '../shared/mocks/request.service.mock';
 import { RequestService } from '../core/data/request.service';
@@ -68,7 +66,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: true,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: false
           },
@@ -83,7 +82,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: true,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: false
           },
@@ -95,7 +95,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: true,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: false
           },
@@ -107,7 +108,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: false,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: false
           },
@@ -119,7 +121,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: true,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: true
           },
@@ -131,7 +134,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: false,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: false
           },
@@ -143,7 +147,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: false,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: false
           },
@@ -155,7 +160,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: false,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: false
           },
@@ -167,7 +173,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: true,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: false
           },
@@ -183,7 +190,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: true,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: false
           }
@@ -213,7 +221,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: true,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: false
           },
@@ -228,7 +237,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: true,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: false
           },
@@ -240,7 +250,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: true,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: true
           },
@@ -252,7 +263,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: false,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: false
           },
@@ -264,7 +276,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: true,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: true
           },
@@ -276,7 +289,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: false,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: false
           },
@@ -288,7 +302,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: false,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: false
           },
@@ -300,7 +315,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: false,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: false
           },
@@ -312,7 +328,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: true,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: true
           },
@@ -328,7 +345,8 @@ describe('SubmissionService test suite', () => {
             collapsed: false,
             enabled: true,
             data: {},
-            errors: [],
+            errorsToShow: [],
+            serverValidationErrors: [],
             isLoading: false,
             isValid: true
           }
@@ -452,7 +470,7 @@ describe('SubmissionService test suite', () => {
         submissionDefinition,
         {},
         new Item(),
-        []
+        null
       );
       const expected = new InitSubmissionFormAction(
         collectionId,
@@ -461,7 +479,7 @@ describe('SubmissionService test suite', () => {
         submissionDefinition,
         {},
         new Item(),
-        []);
+        null);
 
       expect((service as any).store.dispatch).toHaveBeenCalledWith(expected);
     });
@@ -564,7 +582,8 @@ describe('SubmissionService test suite', () => {
               mandatory: true,
               sectionType: 'submission-form',
               data: {},
-              errors: []
+              errorsToShow: [],
+              serverValidationErrors: []
             },
             {
               header: 'submit.progressbar.describe.indexing',
@@ -573,7 +592,8 @@ describe('SubmissionService test suite', () => {
               mandatory: false,
               sectionType: 'submission-form',
               data: {},
-              errors: []
+              errorsToShow: [],
+              serverValidationErrors: []
             },
             {
               header: 'submit.progressbar.describe.publicationchannel',
@@ -582,7 +602,8 @@ describe('SubmissionService test suite', () => {
               mandatory: true,
               sectionType: 'submission-form',
               data: {},
-              errors: []
+              errorsToShow: [],
+              serverValidationErrors: []
             },
             {
               header: 'submit.progressbar.describe.acknowledgement',
@@ -591,7 +612,8 @@ describe('SubmissionService test suite', () => {
               mandatory: false,
               sectionType: 'submission-form',
               data: {},
-              errors: []
+              errorsToShow: [],
+              serverValidationErrors: []
             },
             {
               header: 'submit.progressbar.describe.identifiers',
@@ -600,7 +622,8 @@ describe('SubmissionService test suite', () => {
               mandatory: false,
               sectionType: 'submission-form',
               data: {},
-              errors: []
+              errorsToShow: [],
+              serverValidationErrors: []
             },
             {
               header: 'submit.progressbar.describe.references',
@@ -609,7 +632,8 @@ describe('SubmissionService test suite', () => {
               mandatory: false,
               sectionType: 'submission-form',
               data: {},
-              errors: []
+              errorsToShow: [],
+              serverValidationErrors: []
             },
             {
               header: 'submit.progressbar.upload',
@@ -618,7 +642,8 @@ describe('SubmissionService test suite', () => {
               mandatory: true,
               sectionType: 'upload',
               data: {},
-              errors: []
+              errorsToShow: [],
+              serverValidationErrors: []
             },
             {
               header: 'submit.progressbar.license',
@@ -627,7 +652,8 @@ describe('SubmissionService test suite', () => {
               mandatory: true,
               sectionType: 'license',
               data: {},
-              errors: []
+              errorsToShow: [],
+              serverValidationErrors: []
             }
           ]
       });
@@ -781,7 +807,8 @@ describe('SubmissionService test suite', () => {
         collapsed: false,
         enabled: true,
         data: {},
-        errors: [],
+        errorsToShow: [],
+        serverValidationErrors: [],
         isLoading: false,
         isValid: false
       };
@@ -795,7 +822,8 @@ describe('SubmissionService test suite', () => {
         collapsed: false,
         enabled: true,
         data: {},
-        errors: [],
+        errorsToShow: [],
+        serverValidationErrors: [],
         isLoading: false,
         isValid: false
       };

src/app/submission/submission.service.ts

@@ -22,9 +22,9 @@ import {
   SetActiveSectionAction
 } from './objects/submission-objects.actions';
 import {
+  SubmissionError,
   SubmissionObjectEntry,
   SubmissionSectionEntry,
-  SubmissionSectionError,
   SubmissionSectionObject
 } from './objects/submission-objects.reducer';
 import { submissionObjectFromIdSelector } from './selectors';
@@ -183,7 +183,7 @@ export class SubmissionService {
     submissionDefinition: SubmissionDefinitionsModel,
     sections: WorkspaceitemSectionsObject,
     item: Item,
-    errors: SubmissionSectionError[]) {
+    errors: SubmissionError) {
     this.store.dispatch(new InitSubmissionFormAction(collectionId, submissionId, selfUrl, submissionDefinition, sections, item, errors));
   }
 
@@ -292,7 +292,8 @@ export class SubmissionService {
             sectionObject.config = sections[sectionId].config;
             sectionObject.mandatory = sections[sectionId].mandatory;
             sectionObject.data = sections[sectionId].data;
-            sectionObject.errors = sections[sectionId].errors;
+            sectionObject.errorsToShow = sections[sectionId].errorsToShow;
+            sectionObject.serverValidationErrors = sections[sectionId].serverValidationErrors;
             sectionObject.header = sections[sectionId].header;
             sectionObject.id = sectionId;
             sectionObject.sectionType = sections[sectionId].sectionType;

src/app/submission/submit/submission-submit.component.ts

@@ -1,19 +1,17 @@
 import { ChangeDetectorRef, Component, OnDestroy, OnInit, ViewContainerRef } from '@angular/core';
 import { ActivatedRoute, Router } from '@angular/router';
 
-import { Subscription } from 'rxjs';
+import { BehaviorSubject, Subscription } from 'rxjs';
-
+import { debounceTime, switchMap } from 'rxjs/operators';
-import { hasValue, isEmpty, isNotNull, isNotEmptyOperator } from '../../shared/empty.util';
-import { SubmissionDefinitionsModel } from '../../core/config/models/config-submission-definitions.model';
 import { TranslateService } from '@ngx-translate/core';
+
+import { hasValue, isEmpty, isNotEmptyOperator, isNotNull } from '../../shared/empty.util';
+import { SubmissionDefinitionsModel } from '../../core/config/models/config-submission-definitions.model';
 import { NotificationsService } from '../../shared/notifications/notifications.service';
 import { SubmissionService } from '../submission.service';
 import { SubmissionObject } from '../../core/submission/models/submission-object.model';
-import { Collection } from '../../core/shared/collection.model';
 import { Item } from '../../core/shared/item.model';
 import { WorkspaceitemSectionsObject } from '../../core/submission/models/workspaceitem-sections.model';
-import { BehaviorSubject } from 'rxjs/internal/BehaviorSubject';
-import { switchMap, debounceTime } from 'rxjs/operators';
 import { getAllSucceededRemoteData } from '../../core/shared/operators';
 import { RemoteData } from '../../core/data/remote-data';
 import { ItemDataService } from '../../core/data/item-data.service';