diff --git a/lib/classes/caption/Field/Value.php b/lib/classes/caption/Field/Value.php
index 28e259d713..d216de6f78 100644
--- a/lib/classes/caption/Field/Value.php
+++ b/lib/classes/caption/Field/Value.php
@@ -15,6 +15,9 @@ use Alchemy\Phrasea\Vocabulary;
 
 class caption_Field_Value implements cache_cacheableInterface
 {
+    const RETRIEVE_VALUES = true;
+    const DONT_RETRIEVE_VALUES = false;
+
     /** @var int */
     protected $id;
 
@@ -55,16 +58,19 @@ class caption_Field_Value implements cache_cacheableInterface
      * @param  databox_field        $databox_field
      * @param  record_adapter       $record
      * @param  mixed                $id
+     * @param  bool                 $retrieveValues
      * @return \caption_Field_Value
      */
-    public function __construct(Application $app, databox_field $databox_field, record_adapter $record, $id)
+    public function __construct(Application $app, databox_field $databox_field, record_adapter $record, $id, $retrieveValues = self::RETRIEVE_VALUES)
     {
         $this->id = (int) $id;
         $this->databox_field = $databox_field;
         $this->record = $record;
         $this->app = $app;
 
-        $this->retrieveValues();
+        if($retrieveValues == self::RETRIEVE_VALUES) {
+            $this->retrieveValues();
+        }
     }
 
     public function getQjs()
@@ -72,6 +78,53 @@ class caption_Field_Value implements cache_cacheableInterface
         return $this->qjs;
     }
 
+    public function injectValues($value, $VocabularyType, $VocabularyId)
+    {
+        $this->value = StringHelper::crlfNormalize($value);
+
+        try {
+            $this->VocabularyType = $VocabularyType ? Vocabulary\Controller::get($this->app, $VocabularyType) : null;
+            $this->VocabularyId = $VocabularyId;
+        } catch (\InvalidArgumentException $e) {
+
+        }
+
+        if ($this->VocabularyType) {
+            /**
+             * Vocabulary Control has been deactivated
+             */
+            if ( ! $this->databox_field->getVocabularyControl()) {
+                $this->removeVocabulary();
+            }
+            /**
+             * Vocabulary Control has changed
+             */
+            elseif ($this->databox_field->getVocabularyControl()->getType() !== $this->VocabularyType->getType()) {
+                $this->removeVocabulary();
+            }
+            /**
+             * Current Id is not available anymore
+             */
+            elseif ( ! $this->VocabularyType->validate($this->VocabularyId)) {
+                $this->removeVocabulary();
+            }
+            /**
+             * String equivalence has changed
+             */
+            elseif ($this->VocabularyType->getValue($this->VocabularyId) !== $this->value) {
+                $this->set_value($this->VocabularyType->getValue($this->VocabularyId));
+            }
+        }
+
+        $datas = [
+            'value'          => $this->value,
+            'vocabularyId'   => $this->VocabularyId,
+            'vocabularyType' => $this->VocabularyType ? $this->VocabularyType->getType() : null,
+        ];
+
+        $this->set_data_to_cache($datas);
+    }
+
     protected function retrieveValues()
     {
         try {
@@ -95,47 +148,13 @@ class caption_Field_Value implements cache_cacheableInterface
         $row = $stmt->fetch(PDO::FETCH_ASSOC);
         $stmt->closeCursor();
 
-        $this->value = $row ? StringHelper::crlfNormalize($row['value']) : null;
-
-        try {
-            $this->VocabularyType = $row['VocabularyType'] ? Vocabulary\Controller::get($this->app, $row['VocabularyType']) : null;
-            $this->VocabularyId = $row['VocabularyId'];
-        } catch (\InvalidArgumentException $e) {
-
+        if($row) {
+            $this->injectValues($row['value'], $row['VocabularyType'], $row['VocabularyId']);
         }
-
-        if ($this->VocabularyType) {
-            /**
-             * Vocabulary Control has been deactivated
-             */
-            if ( ! $this->databox_field->getVocabularyControl()) {
-                $this->removeVocabulary();
-            }
-            /**
-             * Vocabulary Control has changed
-             */ elseif ($this->databox_field->getVocabularyControl()->getType() !== $this->VocabularyType->getType()) {
-                $this->removeVocabulary();
-            }
-            /**
-             * Current Id is not available anymore
-             */ elseif ( ! $this->VocabularyType->validate($this->VocabularyId)) {
-                $this->removeVocabulary();
-            }
-            /**
-             * String equivalence has changed
-             */ elseif ($this->VocabularyType->getValue($this->VocabularyId) !== $this->value) {
-                $this->set_value($this->VocabularyType->getValue($this->VocabularyId));
-            }
+        else {
+            $this->injectValues(null, null, null);
         }
 
-        $datas = [
-            'value'          => $this->value,
-            'vocabularyId'   => $this->VocabularyId,
-            'vocabularyType' => $this->VocabularyType ? $this->VocabularyType->getType() : null,
-        ];
-
-        $this->set_data_to_cache($datas);
-
         return $this;
     }
 
diff --git a/lib/classes/caption/field.php b/lib/classes/caption/field.php
index fdd2bd658d..ecd4ac9bf2 100644
--- a/lib/classes/caption/field.php
+++ b/lib/classes/caption/field.php
@@ -14,6 +14,9 @@ use Doctrine\DBAL\Driver\Statement;
 
 class caption_field implements cache_cacheableInterface
 {
+    const RETRIEVE_VALUES = true;
+    const DONT_RETRIEVE_VALUES = false;
+
     /**
      * @var databox_field
      */
@@ -33,33 +36,44 @@ class caption_field implements cache_cacheableInterface
     protected static $localCache = [];
 
     /**
-     * @param Application      $app
-     * @param databox_field    $databox_field
+     * @param Application    $app
+     * @param databox_field  $databox_field
      * @param record_adapter $record
+     * @param bool           $retrieveValues
      *
      * @return caption_field
      */
-    public function __construct(Application $app, databox_field $databox_field, \record_adapter $record)
+    public function __construct(Application $app, databox_field $databox_field, \record_adapter $record, $retrieveValues = self::RETRIEVE_VALUES)
     {
         $this->app = $app;
         $this->record = $record;
         $this->databox_field = $databox_field;
         $this->values = [];
 
-        $rs = $this->get_metadatas_ids();
+        if($retrieveValues == self::RETRIEVE_VALUES) {
+            $rs = $this->get_metadatas_ids();
 
-        foreach ($rs as $row) {
-            $this->values[$row['id']] = new caption_Field_Value($this->app, $databox_field, $record, $row['id']);
+            foreach ($rs as $row) {
+                $this->values[$row['id']] = new caption_Field_Value($this->app, $databox_field, $record, $row['id']);
 
-            // Inconsistent, should not happen
-            if ( ! $databox_field->is_multi()) {
-                break;
+                // Inconsistent, should not happen
+                if (!$databox_field->is_multi()) {
+                    break;
+                }
             }
         }
 
         return $this;
     }
 
+    /**
+     * @param caption_Field_Value[] $values
+     */
+    public function injectValues($values)
+    {
+        $this->values = $values;
+    }
+
     protected function get_metadatas_ids()
     {
         try {
@@ -73,7 +87,7 @@ class caption_field implements cache_cacheableInterface
         $sql = 'SELECT id FROM metadatas WHERE record_id = :record_id AND meta_struct_id = :meta_struct_id';
 
         $params = [
-            ':record_id'      => $this->record->get_record_id()
+            ':record_id'      => $this->record->getRecordId()
             , ':meta_struct_id' => $this->databox_field->get_id()
         ];
 
diff --git a/lib/classes/caption/record.php b/lib/classes/caption/record.php
index 6dfeac7f92..740e21ee2b 100644
--- a/lib/classes/caption/record.php
+++ b/lib/classes/caption/record.php
@@ -47,7 +47,7 @@ class caption_record implements caption_interface, cache_cacheableInterface
     public function __construct(Application $app, \record_adapter $record, databox $databox)
     {
         $this->app = $app;
-        $this->sbas_id = $record->get_sbas_id();
+        $this->sbas_id = $record->getDataboxId();
         $this->record = $record;
         $this->databox = $databox;
     }
@@ -78,12 +78,12 @@ class caption_record implements caption_interface, cache_cacheableInterface
         try {
             $fields = $this->get_data_from_cache();
         } catch (\Exception $e) {
-            $sql = "SELECT m.id as meta_id, s.id as structure_id
-          FROM metadatas m, metadatas_structure s
-          WHERE m.record_id = :record_id AND s.id = m.meta_struct_id
-            ORDER BY s.sorter ASC";
+            $sql = "SELECT m.id AS meta_id, s.id AS structure_id, value, VocabularyType, VocabularyId"
+                . " FROM metadatas m, metadatas_structure s"
+                . " WHERE m.record_id = :record_id AND s.id = m.meta_struct_id"
+                . " ORDER BY s.sorter ASC";
             $stmt = $this->databox->get_connection()->prepare($sql);
-            $stmt->execute([':record_id' => $this->record->get_record_id()]);
+            $stmt->execute([':record_id' => $this->record->getRecordId()]);
             $fields = $stmt->fetchAll(PDO::FETCH_ASSOC);
             $stmt->closeCursor();
             if ($fields) {
@@ -95,11 +95,55 @@ class caption_record implements caption_interface, cache_cacheableInterface
 
         if ($fields) {
             $databox_descriptionStructure = $this->databox->get_meta_structure();
-            foreach ($fields as $row) {
-                $databox_field = $databox_descriptionStructure->get_element($row['structure_id']);
-                $metadata = new caption_field($this->app, $databox_field, $this->record);
 
-                $rec_fields[$databox_field->get_id()] = $metadata;
+            // first group values by field
+            $caption_fields = [];
+            foreach ($fields as $row) {
+                $structure_id = $row['structure_id'];
+                if(!array_key_exists($structure_id, $caption_fields)) {
+                    $caption_fields[$structure_id] = [
+                        'db_field' => $databox_descriptionStructure->get_element($structure_id),
+                        'values' => []
+                    ];
+                }
+
+                if (count($caption_fields[$structure_id]['values']) > 0  && !$caption_fields[$structure_id]['db_field']->is_multi()) {
+                    // Inconsistent, should not happen
+                    continue;
+                }
+
+                // build an EMPTY caption_Field_Value
+                $cfv = new caption_Field_Value(
+                    $this->app,
+                    $caption_fields[$structure_id]['db_field'],
+                    $this->record,
+                    $row['meta_id'],
+                    caption_Field_Value::DONT_RETRIEVE_VALUES   // ask caption_Field_Value "no n+1 sql"
+                );
+
+                // inject the value we already know
+                $cfv->injectValues($row['value'], $row['VocabularyType'], $row['VocabularyId']);
+
+                // add the value to the field
+                $caption_fields[$structure_id]['values'][] = $cfv;
+            }
+
+            // now build a "caption_field" with already known "caption_Field_Value"s
+            foreach($caption_fields as $structure_id => $caption_field) {
+
+                // build an EMPTY caption_field
+                $cf = new caption_field(
+                    $this->app,
+                    $caption_field['db_field'],
+                    $this->record,
+                    caption_field::DONT_RETRIEVE_VALUES     // ask caption_field "no n+1 sql"
+                );
+
+                // inject the value we already know
+                $cf->injectValues($caption_field['values']);
+
+                // add the field to the fields
+                $rec_fields[$structure_id] = $cf;
             }
         }
         $this->fields = $rec_fields;
@@ -248,7 +292,7 @@ class caption_record implements caption_interface, cache_cacheableInterface
      */
     public function get_data_from_cache($option = null)
     {
-        return $this->record->get_databox()->get_data_from_cache($this->get_cache_key($option));
+        return $this->record->getDatabox()->get_data_from_cache($this->get_cache_key($option));
     }
 
     /**
@@ -261,7 +305,7 @@ class caption_record implements caption_interface, cache_cacheableInterface
      */
     public function set_data_to_cache($value, $option = null, $duration = 0)
     {
-        return $this->record->get_databox()->set_data_to_cache($value, $this->get_cache_key($option), $duration);
+        return $this->record->getDatabox()->set_data_to_cache($value, $this->get_cache_key($option), $duration);
     }
 
     /**
@@ -274,6 +318,6 @@ class caption_record implements caption_interface, cache_cacheableInterface
     {
         $this->fields = null;
 
-        return $this->record->get_databox()->delete_data_from_cache($this->get_cache_key($option));
+        return $this->record->getDatabox()->delete_data_from_cache($this->get_cache_key($option));
     }
 }