Issue #88, remove metadata type selection step from interactive upload wizard

Max wizard steps is now 2. Second step is skiped when document type
has not associated metadata types.

mayan/apps/metadata/__init__.py

@@ -24,6 +24,17 @@ from .permissions import (PERMISSION_METADATA_DOCUMENT_ADD,
                           PERMISSION_METADATA_DOCUMENT_VIEW)
 from .urls import api_urls
 
+
+@property
+def document_type_metadata(self):
+    try:
+        return self.documenttypedefaults_set.get().default_metadata
+    except self.documenttypedefaults_set.model.DoesNotExist:
+        return MetadataType.objects.none()
+
+
+DocumentType.add_to_class('metadata', document_type_metadata)
+
 register_links(['metadata:metadata_add', 'metadata:metadata_edit', 'metadata:metadata_remove', 'metadata:metadata_view'], [metadata_add, metadata_edit, metadata_remove], menu_name='sidebar')
 register_links(Document, [metadata_view], menu_name='form_header')
 register_links(DocumentType, [setup_document_type_metadata])

mayan/apps/metadata/forms.py

@@ -80,24 +80,6 @@ class MetadataRemoveForm(MetadataForm):
     update = forms.BooleanField(initial=False, label=_(u'Remove'), required=False)
 
 
-class MetadataSelectionForm(forms.Form):
-    def __init__(self, *args, **kwargs):
-        super(MetadataSelectionForm, self).__init__(*args, **kwargs)
-        document_type = getattr(self, 'initial', {}).get('document_type', None)
-        if document_type:
-            try:
-                defaults = document_type.documenttypedefaults_set.get()
-                self.fields['metadata_types'].initial = defaults.default_metadata.all()
-            except DocumentTypeDefaults.DoesNotExist:
-                pass
-
-    metadata_types = forms.ModelMultipleChoiceField(
-        queryset=MetadataType.objects.all(),
-        label=_(u'Metadata'),
-        required=False,
-        widget=ScrollableCheckboxSelectMultiple(attrs={'size': 10, 'class': 'choice_form'})
-    )
-
 MetadataRemoveFormSet = formset_factory(MetadataRemoveForm, extra=0)