add migrations

app/db/alembic/versions/4ad7b4a06e6c_add_locked_column_to_pull_requests_table.py

@@ -0,0 +1,28 @@
+"""add locked column to pull_requests table
+
+Revision ID: 4ad7b4a06e6c
+Revises: 5c2ce5113df2
+Create Date: 2021-08-14 15:21:25.387604
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '4ad7b4a06e6c'
+down_revision = '5c2ce5113df2'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('pull_requests', sa.Column('locked', sa.Boolean(), nullable=True))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('pull_requests', 'locked')
+    # ### end Alembic commands ###