Created new metadata app and move all code relating metadata to it

apps/metadata/forms.py

@@ -0,0 +1,67 @@
+from django import forms
+from django.utils.translation import ugettext_lazy as _
+from django.forms.formsets import formset_factory
+
+from metadata.conf.settings import AVAILABLE_MODELS
+from metadata.conf.settings import AVAILABLE_FUNCTIONS
+from metadata.models import MetadataType, DocumentMetadata
+
+    
+class MetadataForm(forms.Form):
+    def __init__(self, *args, **kwargs):
+        super(MetadataForm, self).__init__(*args, **kwargs)
+
+        #Set form fields initial values
+        if 'initial' in kwargs:
+            self.metadata_type = kwargs['initial'].pop('metadata_type', None)
+            #self.document_type = kwargs['initial'].pop('document_type', None)
+
+            # FIXME:
+            #required = self.document_type.documenttypemetadatatype_set.get(metadata_type=self.metadata_type).required
+            required = False
+            required_string = u''
+            if required:
+                self.fields['value'].required = True
+                required_string = ' (%s)' % _(u'required')
+            else:
+                #TODO: FIXME: not working correctly
+                self.fields['value'].required = False
+
+            self.fields['name'].initial = '%s%s' % ((self.metadata_type.title if self.metadata_type.title else self.metadata_type.name), required_string)
+            self.fields['id'].initial = self.metadata_type.pk
+            if self.metadata_type.default:
+                try:
+                    self.fields['value'].initial = eval(self.metadata_type.default, AVAILABLE_FUNCTIONS)
+                except Exception, err:
+                    self.fields['value'].initial = err
+
+            if self.metadata_type.lookup:
+                try:
+                    choices = eval(self.metadata_type.lookup, AVAILABLE_MODELS)
+                    self.fields['value'] = forms.ChoiceField(label=self.fields['value'].label)
+                    choices = zip(choices, choices)
+                    if not required:
+                        choices.insert(0, ('', '------'))
+                    self.fields['value'].choices = choices
+                    self.fields['value'].required = required
+                except Exception, err:
+                    self.fields['value'].initial = err
+                    self.fields['value'].widget = forms.TextInput(attrs={'readonly': 'readonly'})
+
+    id = forms.CharField(label=_(u'id'), widget=forms.HiddenInput)
+    name = forms.CharField(label=_(u'Name'),
+        required=False, widget=forms.TextInput(attrs={'readonly': 'readonly'}))
+    value = forms.CharField(label=_(u'Value'), required=False)
+    update = forms.BooleanField(initial=True, label=_(u'Update'), required=False)
+
+MetadataFormSet = formset_factory(MetadataForm, extra=0)
+
+
+class AddMetadataForm(forms.Form):
+    metadata_type = forms.ModelChoiceField(queryset=MetadataType.objects.all(), label=_(u'Metadata type'))
+
+
+class MetadataRemoveForm(MetadataForm):
+    update = forms.BooleanField(initial=False, label=_(u'Remove'), required=False)
+    
+MetadataRemoveFormSet = formset_factory(MetadataRemoveForm, extra=0)