diff -r 868d0fcdbb99 -r 989d9e117586 Services/DocumentService.php
--- a/Services/DocumentService.php	Mon Dec 19 18:15:42 2011 +0100
+++ b/Services/DocumentService.php	Mon Dec 26 22:53:50 2011 +0100
@@ -47,8 +47,10 @@
     
 
     /**
-     * Copy the list of tags of one document to another.
-     * The ids are the ids of the "host" document.
+     * 	Copy the list of tags of one document to another.
+     * 	The ids are the ids of the "host" document.
+	 * 	Beware, both Documents must exists in the database. therefore this method can be called only after a EntityManager::push()
+	 * 	If one or the other doc is not found, an execption is raised.
 	 *
      * @param mixed $id_doc_src the source document id
      * @param mixed $id_doc_tgt the target document id
@@ -81,11 +83,11 @@
     }
     
     /**
-     *
-     * Add a new tag to a "host" document.
+     * Add a new tag (or tags) to a "host" document.
      * If the label already exists, an exception is raised.
+     * Also, the document must exists in the database, i.e. Entitymanager::flush() must have been called on this objects before.
      *
-     * @param mixed $doc
+     * @param mixed $doc the document to add the tags to
      * @param string|array $tag_label : the label of the new tag
      */
     public function addTags($doc, $tag_labels)
@@ -96,13 +98,15 @@
         $class = $this->getContainer()->getParameter("wiki_tag.document_class");
         
         if(! is_a($doc,"\IRI\Bundle\WikiTagBundle\Model\DocumentInterface")) {
+            $doc_rep = $this->getDoctrine()->getRepository('WikiTagBundle:Document');
             if(is_a($doc, $class)) {
-                $doc_id = $doc->getId();
+                // todo: use reflection to get the id
+                $doc_id = $doc_rep->reflectionGetField($doc, Container()->getParameter("wiki_tag.document_id_column"));
             }
             else {
                 $doc_id = $doc;
             }
-            $doc = $this->getDoctrine()->getRepository('WikiTagBundle:Document')->findOneByExternalId($doc_id);
+            $doc = $doc_rep->findOneByExternalId($doc_id);
         }
         
         
@@ -113,19 +117,37 @@
         foreach ($tag_labels as $tag_label) {
         
             $normalized_tag_label = WikiTagUtils::normalizeTag($tag_label);
+            $created = false;
             
             $query = $em->createQuery("SELECT COUNT(dt.id) FROM WikiTagBundle:DocumentTag dt JOIN dt.tag t WHERE dt.document = :id_doc AND t.normalizedLabel = :label");
             $query->setParameters(array("id_doc"=>$doc, "label"=>$normalized_tag_label));
             
             $nb_tags = $query->getSingleScalarResult();
             
+            if($nb_tags == 0) {
+                # look in unit of work
+                $uow = $em->getUnitOfWork();
+                foreach($uow->getScheduledEntityInsertions() as $entity) {
+                    if(is_a($entity, "\IRI\Bundle\WikiTagBundle\Model\DocumentTagInterface")) {
+                        $tag = $entity->getTag();
+                        if(!is_null($tag)) {
+                            if($tag->getNormalizedLabel() === $normalized_tag_label)
+                            {
+                                $nb_tags++;
+                                break;
+                            }
+                        }
+                    }
+                }
+            }
+            
             // If the label was found, we sent a bad request
-            if($nb_tags > 0){
+            if($nb_tags > 0) {
                 throw new WikiTagServiceException(sprintf("Le tag %s existe déjà pour cette fiche.", $tag_label), 400, null, "duplicate_tag");
             }
             // returns array($tag, $revision_id, $created)
             try {
-                $ar = $this->getDoctrine()->getRepository('WikiTagBundle:Tag')->getOrCreateTag($tag_label);
+                $ar = $this->getDoctrine()->getRepository('WikiTagBundle:Tag')->getOrCreateTag($tag_label, $this->getContainer()->getParameter('wiki_tag.ignore_wikipedia_error'));
             }
             catch (\Exception $e){
                 throw new WikiTagServiceException($e->getMessage(), 500 , $e, "wikipedia_request_failed");
@@ -142,10 +164,9 @@
             }
                         
             if($created || $nb_tags==0){
-                $new_order_ar = $this->getDoctrine()->getRepository('WikiTagBundle:DocumentTag')->getMaxOrder($doc);
-                // The result is a double array. And reset(reset($newOrderAr)) is not allowed. And a string is returned.
-                $a1 = reset($new_order_ar);
-                $new_order = intval(reset($a1)) + 1;
+                
+                $max_order = $this->getDoctrine()->getRepository('WikiTagBundle:DocumentTag')->getMaxOrder($doc);
+                $new_order = $max_order + 1;
                 $new_DT = new DocumentTag();
                 $new_DT->setDocument($doc);
                 $new_DT->setTag($tag);
@@ -158,6 +179,12 @@
                 
     }
     
+    /**
+     * Returns the list of tags labels for @author ymh
+     *
+     * @param mixed $id_doc the document id.
+     * @throws WikiTagServiceException if the document is not found
+     */
     public function getTagLabels($id_doc)
     {
         $rep = $this->getDoctrine()->getRepository('WikiTagBundle:Document');
@@ -168,8 +195,6 @@
         }
         
         return $rep->getTagsStr($doc);
-
     }
-    
         
 }
\ No newline at end of file