Remove vestigial '_orphan_document_' document type if there are no documents of that type

mayan/apps/documents/south_migrations/0031_remove_orphan_documents.py

@@ -0,0 +1,123 @@
+# -*- coding: utf-8 -*-
+from south.utils import datetime_utils as datetime
+from south.db import db
+from south.v2 import DataMigration
+from django.db import models
+
+
+class Migration(DataMigration):
+
+    def forwards(self, orm):
+        "Write your forwards methods here."
+        # Note: Don't use "from appname.models import ModelName".
+        # Use orm.ModelName to refer to models in this application,
+        # and orm['appname.ModelName'] for models in other applications.
+        try:
+            orphan_document_type = orm.DocumentType.objects.get(name='_orphan_document_')
+        except:
+            pass
+        else:
+            if not orphan_document_type.documents.count():
+                orphan_document_type.delete()
+
+    def backwards(self, orm):
+        "Write your backwards methods here."
+
+    models = {
+        u'auth.group': {
+            'Meta': {'object_name': 'Group'},
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
+            'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': u"orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
+        },
+        u'auth.permission': {
+            'Meta': {'ordering': "(u'content_type__app_label', u'content_type__model', u'codename')", 'unique_together': "((u'content_type', u'codename'),)", 'object_name': 'Permission'},
+            'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['contenttypes.ContentType']"}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
+        },
+        u'auth.user': {
+            'Meta': {'object_name': 'User'},
+            'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
+            'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'groups': ('django.db.models.fields.related.ManyToManyField', [], {'symmetrical': 'False', 'related_name': "u'user_set'", 'blank': 'True', 'to': u"orm['auth.Group']"}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'symmetrical': 'False', 'related_name': "u'user_set'", 'blank': 'True', 'to': u"orm['auth.Permission']"}),
+            'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        u'contenttypes.contenttype': {
+            'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
+            'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
+        },
+        u'documents.document': {
+            'Meta': {'ordering': "['-date_added']", 'object_name': 'Document'},
+            'date_added': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
+            'description': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'document_type': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'documents'", 'to': u"orm['documents.DocumentType']"}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'label': ('django.db.models.fields.CharField', [], {'default': "u'Uninitialized document'", 'max_length': '255', 'db_index': 'True'}),
+            'language': ('django.db.models.fields.CharField', [], {'default': "u'eng'", 'max_length': '8'}),
+            'uuid': ('django.db.models.fields.CharField', [], {'default': "u'26db4eb3-1050-4d26-8324-74b09d61991f'", 'max_length': '48'})
+        },
+        u'documents.documentpage': {
+            'Meta': {'ordering': "['page_number']", 'object_name': 'DocumentPage'},
+            'content': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'document_version': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'pages'", 'to': u"orm['documents.DocumentVersion']"}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'page_label': ('django.db.models.fields.CharField', [], {'max_length': '40', 'null': 'True', 'blank': 'True'}),
+            'page_number': ('django.db.models.fields.PositiveIntegerField', [], {'default': '1', 'db_index': 'True'})
+        },
+        u'documents.documentpagetransformation': {
+            'Meta': {'ordering': "('order',)", 'object_name': 'DocumentPageTransformation'},
+            'arguments': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'document_page': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['documents.DocumentPage']"}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'order': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0', 'null': 'True', 'db_index': 'True', 'blank': 'True'}),
+            'transformation': ('django.db.models.fields.CharField', [], {'max_length': '128'})
+        },
+        u'documents.documenttype': {
+            'Meta': {'ordering': "['name']", 'object_name': 'DocumentType'},
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '32'}),
+            'ocr': ('django.db.models.fields.BooleanField', [], {'default': 'True'})
+        },
+        u'documents.documenttypefilename': {
+            'Meta': {'ordering': "['filename']", 'unique_together': "(('document_type', 'filename'),)", 'object_name': 'DocumentTypeFilename'},
+            'document_type': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'filenames'", 'to': u"orm['documents.DocumentType']"}),
+            'enabled': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'filename': ('django.db.models.fields.CharField', [], {'max_length': '128', 'db_index': 'True'}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'})
+        },
+        u'documents.documentversion': {
+            'Meta': {'object_name': 'DocumentVersion'},
+            'checksum': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'comment': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
+            'document': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'versions'", 'to': u"orm['documents.Document']"}),
+            'encoding': ('django.db.models.fields.CharField', [], {'max_length': '64', 'null': 'True', 'blank': 'True'}),
+            'file': ('django.db.models.fields.files.FileField', [], {'max_length': '100'}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'mimetype': ('django.db.models.fields.CharField', [], {'max_length': '255', 'null': 'True', 'blank': 'True'}),
+            'timestamp': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'})
+        },
+        u'documents.recentdocument': {
+            'Meta': {'ordering': "('-datetime_accessed',)", 'object_name': 'RecentDocument'},
+            'datetime_accessed': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'db_index': 'True', 'blank': 'True'}),
+            'document': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['documents.Document']"}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'user': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['auth.User']"})
+        }
+    }
+
+    complete_apps = ['documents']
+    symmetrical = True