add migrations for snapshot errors

ereuse_devicehub/migrations/versions/23d9e7ebbd7d_add_snapshot_errors.py

@@ -0,0 +1,54 @@
+"""add snapshot errors
+
+Revision ID: 23d9e7ebbd7d
+Revises: 17288b2a7440
+Create Date: 2022-04-04 19:27:48.675387
+
+"""
+import citext
+import sqlalchemy as sa
+from alembic import context, op
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '23d9e7ebbd7d'
+down_revision = '17288b2a7440'
+branch_labels = None
+depends_on = None
+
+
+def get_inv():
+    INV = context.get_x_argument(as_dictionary=True).get('inventory')
+    if not INV:
+        raise ValueError("Inventory value is not specified")
+    return INV
+
+
+def upgrade():
+    op.create_table(
+        'snapshot_errors',
+        sa.Column(
+            'updated',
+            sa.TIMESTAMP(timezone=True),
+            server_default=sa.text('CURRENT_TIMESTAMP'),
+            nullable=False,
+            comment='The last time Devicehub recorded a change for \n    this thing.\n    ',
+        ),
+        sa.Column(
+            'created',
+            sa.TIMESTAMP(timezone=True),
+            server_default=sa.text('CURRENT_TIMESTAMP'),
+            nullable=False,
+            comment='When Devicehub created this.',
+        ),
+        sa.Column('id', sa.BigInteger(), nullable=False),
+        sa.Column('description', citext.CIText(), nullable=False),
+        sa.Column('snapshot_uuid', postgresql.UUID(as_uuid=True), nullable=False),
+        sa.Column('severity', sa.SmallInteger(), nullable=False),
+        sa.PrimaryKeyConstraint('id'),
+        schema=f'{get_inv()}',
+    )
+
+
+def downgrade():
+    op.drop_table('snapshot_errors', schema=f'{get_inv()}')