Fix index on Attribute

Previously the index was unique among site and name. Add resource_name
since making Attribute more generic

nsot/migrations/versions/2693d64d08b6_.py

@@ -0,0 +1,30 @@
+"""empty message
+
+Revision ID: 2693d64d08b6
+Revises: 5678f0574a6d
+Create Date: 2015-01-23 10:43:13.085148
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '2693d64d08b6'
+down_revision = '5678f0574a6d'
+branch_labels = None
+depends_on = None
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index('name_idx', table_name='attributes')
+    op.create_index('name_idx', 'attributes', ['site_id', 'resource_name', 'name'], unique=True)
+    ### end Alembic commands ###
+
+
+def downgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index('name_idx', table_name='attributes')
+    op.create_index('name_idx', 'attributes', ['site_id', 'name'], unique=1)
+    ### end Alembic commands ###

nsot/models.py

@@ -682,7 +682,7 @@ class Attribute(Model):
     __table_args__ = (
         Index(
             "name_idx",
-            "site_id", "name",
+            "site_id", "resource_name", "name",
             unique=True
         ),
     )