fix: update officer term constraint migration

Author: jbriones1

src/alembic/versions/a5c42bcdda5c_update_officer_term_constraint_71.py

@@ -0,0 +1,38 @@
+"""update_officer_term_constraint_71
+
+Revision ID: a5c42bcdda5c
+Revises: 876041e5b41c
+Create Date: 2025-09-28 18:03:54.856781
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = 'a5c42bcdda5c'
+down_revision: Union[str, None] = '876041e5b41c'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.alter_column('election', 'type',
+               existing_type=sa.VARCHAR(length=64),
+               type_=sa.String(length=32),
+               nullable=False)
+    op.create_unique_constraint(op.f('uq_officer_term_computing_id'), 'officer_term', ['computing_id', 'position', 'start_date'])
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint(op.f('uq_officer_term_computing_id'), 'officer_term', type_='unique')
+    op.alter_column('election', 'type',
+               existing_type=sa.String(length=32),
+               type_=sa.VARCHAR(length=64),
+               nullable=True)
+    # ### end Alembic commands ###