alembic migeration added (#293)

submit-api/migrations/versions/4dda18ca8bda_add_root_submission_id_to_.py

@@ -0,0 +1,34 @@
+"""Add root_submission_id to submissions
+
+Revision ID: 4dda18ca8bda
+Revises: 56adb905f820
+Create Date: 2025-02-13 12:55:14.310337
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '4dda18ca8bda'
+down_revision = '56adb905f820'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+
+    op.add_column('submissions', sa.Column('root_submission_id', sa.Integer(), nullable=True))
+    op.create_foreign_key(
+        'fk_submissions_root_submission',
+        'submissions',
+        'submissions',
+        ['root_submission_id'],
+        ['id']
+    )
+
+
+def downgrade():
+    op.drop_constraint('fk_submissions_root_submission', 'submissions', type_='foreignkey')
+    op.drop_column('submissions', 'root_submission_id')