387         doc = lxml.etree.fromstring(self.ldt)

   387         if self.ldt:

   388         self.contents.clear()

   388             doc = lxml.etree.fromstring(self.ldt)

   389         medias = doc.xpath('/iri/medias/media')

   389             new_contents = []

   390                         

   390             contents = doc.xpath("/iri/medias/media")

   391         description = self.get_description(doc)

   391             for elem in contents:

   392         new_desc = clean_description(description)

   392                 id = elem.get("id")

   393         

   393                 new_contents.append(id)

   394         if new_desc:        

   394     

   395             desc_node = doc.xpath('/iri/project')[0]

   395             for c in self.contents.all():

   396             desc_node.set('abstract', new_desc)

   396                 if not c.iri_id in new_contents:

   397             self.ldt = lxml.etree.tostring(doc, pretty_print=True)          

   397                     self.contents.remove(c)

   398         

   398             

   399         for media in medias:

   399             contents_id = [c.id for c in self.contents.all()]

   400             iri_id = media.get('id')

   400             for c in new_contents:

   401             c = Content.objects.get(iri_id=iri_id)

   401                 if c not in contents_id:

   402             self.contents.add(c)

   402                     content = Content.objects.get(iri_id=c)

   403                     self.contents.add(content)

   404                                 

   405             description = self.get_description(doc)

   406             new_desc = clean_description(description)

   407             

   408             if new_desc:        

   409                 desc_node = doc.xpath('/iri/project')[0]

   410                 desc_node.set('abstract', new_desc)

   411                 self.ldt = lxml.etree.tostring(doc, pretty_print=True)