Models and migrations for requests

alembic/versions/b5b17d465166_requests.py

@@ -0,0 +1,44 @@
+"""requests
+
+Revision ID: b5b17d465166
+Revises: ff1c9c02fa61
+Create Date: 2018-07-23 14:58:05.044456
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = 'b5b17d465166'
+down_revision = 'ff1c9c02fa61'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('requests',
+    sa.Column('id', postgresql.UUID(as_uuid=True), server_default=sa.text('uuid_generate_v4()'), nullable=False),
+    sa.Column('creator', postgresql.UUID(as_uuid=True), nullable=True),
+    sa.Column('time_created', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=True),
+    sa.Column('body', postgresql.JSONB(astext_type=sa.Text()), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_table('request_status_events',
+    sa.Column('id', postgresql.UUID(as_uuid=True), server_default=sa.text('uuid_generate_v4()'), nullable=False),
+    sa.Column('new_status', sa.String(), nullable=True),
+    sa.Column('time_created', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=True),
+    sa.Column('request_id', postgresql.UUID(as_uuid=True), nullable=True),
+    sa.Column('sequence', sa.BigInteger(), nullable=False),
+    sa.ForeignKeyConstraint(['request_id'], ['requests.id'], ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('request_status_events')
+    op.drop_table('requests')
+    # ### end Alembic commands ###

alembic/versions/ff1c9c02fa61_enable_uuid_extension.py

@@ -0,0 +1,26 @@
+"""enable uuid extension
+
+Revision ID: ff1c9c02fa61
+Revises:
+Create Date: 2018-07-23 14:54:05.422286
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'ff1c9c02fa61'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    connection = op.get_bind()
+    connection.execute('CREATE EXTENSION IF NOT EXISTS "uuid-ossp"')
+
+
+def downgrade():
+    connection = op.get_bind()
+    connection.execute('DROP EXTENSION IF EXISTS "uuid-ossp"')