Improve indexing admin interface

mayan/apps/document_indexing/admin.py

@@ -1,21 +1,29 @@
 from __future__ import unicode_literals
 
 from django.contrib import admin
-
-from mptt.admin import MPTTModelAdmin
+from django.utils.translation import ugettext_lazy as _
 
 from .models import Index, IndexInstanceNode, IndexTemplateNode
 
 
-class IndexTemplateNodeAdmin(MPTTModelAdmin):
+class IndexTemplateNodeInline(admin.StackedInline):
+    extra = 0
     list_display = ('expression', 'enabled', 'link_documents')
+    model = IndexTemplateNode
 
 
-class IndexInstanceNodeAdmin(MPTTModelAdmin):
-    model = IndexInstanceNode
-    list_display = ('value',)
+class IndexAdmin(admin.ModelAdmin):
+    filter_horizontal = ('document_types',)
+    inlines = [IndexTemplateNodeInline]
+    list_display = ('name', 'title', 'enabled', 'get_document_types')
+
+    def get_document_types(self, instance):
+        return ', '.join(['"{0}"'.format(document_type) for document_type in instance.document_types.all()]) or _('None')
+
+    get_document_types.short_description = _('Document types')
+
+
+admin.site.register(Index, IndexAdmin)
+
 
 
-admin.site.register(Index)
-admin.site.register(IndexTemplateNode, IndexTemplateNodeAdmin)
-admin.site.register(IndexInstanceNode, IndexInstanceNodeAdmin)