base modification in model for category support

1 files changed, 42 insertions, 0 deletions

diff --git a/migrations/versions/3f83bfe93fc_adding_category.py b/migrations/versions/3f83bfe93fc_adding_category.py
new file mode 100644
index 00000000..bd65a01f
--- /dev/null
+++ b/migrations/versions/3f83bfe93fc_adding_category.py
@@ -0,0 +1,42 @@
+"""adding category
+
+Revision ID: 3f83bfe93fc
+Revises: 25ca960a207
+Create Date: 2015-09-01 14:15:04.212563
+"""
+
+# revision identifiers, used by Alembic.
+revision = '3f83bfe93fc'
+down_revision = '25ca960a207'
+
+import conf
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    op.create_table('category',
+            sa.Column('id', sa.Integer(), nullable=False),
+            sa.Column('name', sa.String(), nullable=True),
+            sa.Column('user_id', sa.Integer(), nullable=True),
+            sa.ForeignKeyConstraint(['user_id'], ['user.id'], ),
+            sa.PrimaryKeyConstraint('id'))
+    op.add_column('article',
+                  sa.Column('category_id', sa.Integer(), nullable=True))
+    op.add_column('feed',
+                  sa.Column('category_id', sa.Integer(), nullable=True))
+    if 'sqlite' not in conf.SQLALCHEMY_DATABASE_URI:
+        op.create_foreign_key(None, 'article', 'category',
+                              ['category_id'], ['id'])
+        op.create_foreign_key(None, 'feed', 'category',
+                              ['category_id'], ['id'])
+
+
+def downgrade():
+    if 'sqlite' not in conf.SQLALCHEMY_DATABASE_URI:
+        op.drop_constraint(None, 'feed', type_='foreignkey')
+        op.drop_constraint(None, 'feed', type_='foreignkey')
+        op.drop_column('feed', 'category_id')
+        op.drop_constraint(None, 'article', type_='foreignkey')
+        op.drop_column('article', 'category_id')
+        op.drop_table('category')