alembic for define the hash table

ereuse_devicehub/migrations/versions/3eb50297c365_add_hash.py

@@ -0,0 +1,42 @@
+"""empty message
+
+Revision ID: 3eb50297c365
+Revises: 378b6b147b46
+Create Date: 2020-12-18 16:26:15.453694
+
+"""
+from alembic import context
+from alembic import op
+import sqlalchemy as sa
+import sqlalchemy_utils
+import citext
+import teal
+
+
+# revision identifiers, used by Alembic.
+revision = '3eb50297c365'
+down_revision = '378b6b147b46'
+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():
+    # Report Hash table
+    op.create_table('report_hash',
+                    sa.Column('id', sa.BigInteger(), nullable=False),
+                    sa.Column('created', sa.TIMESTAMP(timezone=True), server_default=sa.text('CURRENT_TIMESTAMP'),
+                              nullable=False, comment='When Devicehub created this.'),
+                    sa.Column('hash', citext.CIText(), nullable=False),
+                    sa.PrimaryKeyConstraint('id'),
+                    schema=f'{get_inv()}'
+                    )
+
+
+def downgrade():
+    op.drop_table('report_hash', schema=f'{get_inv()}')