added dd-254 model

alembic/versions/7d9f070012ae_dd254.py

@@ -0,0 +1,38 @@
+"""dd254
+
+Revision ID: 7d9f070012ae
+Revises: b3a1a07cf30b
+Create Date: 2019-02-18 08:38:07.076612
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '7d9f070012ae'
+down_revision = 'b3a1a07cf30b'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.create_table('dd_254s',
+    sa.Column('time_created', sa.TIMESTAMP(timezone=True), server_default=sa.text('now()'), nullable=False),
+    sa.Column('time_updated', sa.TIMESTAMP(timezone=True), server_default=sa.text('now()'), nullable=False),
+    sa.Column('id', postgresql.UUID(as_uuid=True), server_default=sa.text('uuid_generate_v4()'), nullable=False),
+    sa.Column('certifying_official', sa.String(), nullable=True),
+    sa.Column('co_title', sa.String(), nullable=True),
+    sa.Column('co_address', sa.String(), nullable=True),
+    sa.Column('co_phone', sa.String(), nullable=True),
+    sa.Column('required_distribution', sa.ARRAY(sa.String()), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.add_column('task_orders', sa.Column('dd_254_id', postgresql.UUID(as_uuid=True), nullable=True))
+    op.create_foreign_key("task_orders_dd_254s_id", 'task_orders', 'dd_254s', ['dd_254_id'], ['id'])
+
+
+def downgrade():
+    op.drop_constraint('task_orders_dd_254s_id', 'task_orders', type_='foreignkey')
+    op.drop_column('task_orders', 'dd_254_id')
+    op.drop_table('dd_254s')