Show current metadata in document upload view

apps/documents/metadata.py

@@ -31,6 +31,8 @@ def save_metadata_list(metadata_list, document):
         if item['value']:
             save_metadata(item, document)
         else:
+            #If there is no metadata value, delete the metadata entry 
+            #completely from the document
             try:
                 metadata_type = MetadataType.objects.get(id=item['id'])
                 document_metadata = DocumentMetadata.objects.get(document=document,
@@ -52,3 +54,21 @@ def save_metadata(metadata_dict, document):
     #http://stackoverflow.com/questions/4382875/handling-iri-in-django
     document_metadata.value=unquote_plus(metadata_dict['value'])#.decode('utf-8')
     document_metadata.save()
+
+
+def metadata_repr(metadata_list):
+    return ', '.join(metadata_repr_as_list(metadata_list))
+   
+    
+def metadata_repr_as_list(metadata_list):
+    output = []
+    for metadata_dict in metadata_list:
+        try:
+            output.append('%s - %s' % (MetadataType.objects.get(pk=metadata_dict['id']), metadata_dict.get('value', '')))
+        except:
+            pass
+        
+    return output
+    
+    
+    

apps/documents/views.py

@@ -50,7 +50,8 @@ from forms import DocumentTypeSelectForm, DocumentCreateWizard, \
         StagingDocumentForm, DocumentTypeMetadataType, DocumentPreviewForm, \
         MetadataFormSet, DocumentPageForm, DocumentPageTransformationForm
    
-from metadata import save_metadata, save_metadata_list, decode_metadata_from_url
+from metadata import save_metadata, save_metadata_list, \
+    decode_metadata_from_url, metadata_repr_as_list
 from models import Document, DocumentMetadata, DocumentType, MetadataType, \
     DocumentPage, DocumentPageTransformation
 from staging import StagingFile
@@ -227,7 +228,16 @@ def upload_document_with_type(request, document_type_id, multiple=True):
                     'grid_clear':True,   
                 },
             )
-    
+            
+    context.update({
+        'sidebar_subtemplates_list':[
+            {
+                'title':_(u'Current metadata'),
+                'name':'generic_subtemplate.html',
+                #'content':metadata_repr(decode_metadata_from_url(request.GET)),
+                'paragraphs':metadata_repr_as_list(decode_metadata_from_url(request.GET))
+            }]
+    })
     return render_to_response('generic_form.html', context,
         context_instance=RequestContext(request))