Add unicity constraints to the docs models.

docs/migrations/0005_add_unicity_constaints.py

@@ -0,0 +1,46 @@
+# -*- coding: utf-8 -*-
+import datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+        # Adding unique constraint on 'DocumentRelease', fields ['lang', 'version']
+        db.create_unique(u'docs_documentrelease', ['lang', 'version'])
+
+        # Adding unique constraint on 'Document', fields ['release', 'path']
+        db.create_unique(u'docs_document', ['release_id', 'path'])
+
+
+    def backwards(self, orm):
+        # Removing unique constraint on 'Document', fields ['release', 'path']
+        db.delete_unique(u'docs_document', ['release_id', 'path'])
+
+        # Removing unique constraint on 'DocumentRelease', fields ['lang', 'version']
+        db.delete_unique(u'docs_documentrelease', ['lang', 'version'])
+
+
+    models = {
+        u'docs.document': {
+            'Meta': {'unique_together': "(('release', 'path'),)", 'object_name': 'Document'},
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'path': ('django.db.models.fields.CharField', [], {'max_length': '500'}),
+            'release': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'documents'", 'to': u"orm['docs.DocumentRelease']"}),
+            'title': ('django.db.models.fields.CharField', [], {'max_length': '500'})
+        },
+        u'docs.documentrelease': {
+            'Meta': {'unique_together': "(('lang', 'version'),)", 'object_name': 'DocumentRelease'},
+            'docs_subdir': ('django.db.models.fields.CharField', [], {'max_length': '200', 'blank': 'True'}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'is_default': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'lang': ('django.db.models.fields.CharField', [], {'default': "'en'", 'max_length': '2'}),
+            'scm': ('django.db.models.fields.CharField', [], {'max_length': '10'}),
+            'scm_url': ('django.db.models.fields.CharField', [], {'max_length': '200'}),
+            'version': ('django.db.models.fields.CharField', [], {'max_length': '20'})
+        }
+    }
+
+    complete_apps = ['docs']

docs/models.py

@@ -41,6 +41,9 @@ class DocumentRelease(models.Model):
 
     objects = DocumentReleaseManager()
 
+    class Meta:
+        unique_together = ('lang', 'version')
+
     def __unicode__(self):
         return "%s/%s" % (self.lang, self.version)
 
@@ -78,6 +81,9 @@ class Document(models.Model):
     path = models.CharField(max_length=500)
     title = models.CharField(max_length=500)
 
+    class Meta:
+        unique_together = ('release', 'path')
+
     def __unicode__(self):
         return "/".join([self.release.lang, self.release.version, self.path])