A R R R Associates
97 lines
5.0 KiB
Python
97 lines
5.0 KiB
Python
"""engagement year columns and locking
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Revision ID: 20260429_engagement_year_locking
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Revises: 20260426_service_execution_tasks
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Create Date: 2026-04-29
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"""
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from typing import Sequence, Union
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from alembic import op
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import sqlalchemy as sa
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revision: str = "20260429_engagement_year_locking"
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down_revision: Union[str, None] = "20260426_service_execution_tasks"
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def _has_column(table_name: str, column_name: str) -> bool:
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bind = op.get_bind()
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insp = sa.inspect(bind)
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return any(c["name"] == column_name for c in insp.get_columns(table_name))
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def _has_index(table_name: str, index_name: str) -> bool:
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bind = op.get_bind()
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insp = sa.inspect(bind)
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return any(ix.get("name") == index_name for ix in insp.get_indexes(table_name))
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def _create_index_if_missing(table_name: str, index_name: str, columns: list[str], unique: bool = False) -> None:
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if not _has_index(table_name, index_name):
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op.create_index(index_name, table_name, columns, unique=unique)
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def upgrade() -> None:
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if not _has_column("client_service_subscriptions", "financial_year"):
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op.add_column("client_service_subscriptions", sa.Column("financial_year", sa.String(length=9), nullable=False, server_default="2025-26"))
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if not _has_column("client_service_subscriptions", "assessment_year"):
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op.add_column("client_service_subscriptions", sa.Column("assessment_year", sa.String(length=9), nullable=True))
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if not _has_column("client_service_subscriptions", "is_locked"):
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op.add_column("client_service_subscriptions", sa.Column("is_locked", sa.Boolean(), nullable=False, server_default=sa.false()))
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if not _has_column("client_service_subscriptions", "locked_at_utc"):
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op.add_column("client_service_subscriptions", sa.Column("locked_at_utc", sa.DateTime(timezone=True), nullable=True))
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if not _has_column("client_service_subscriptions", "locked_by_user_id"):
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op.add_column("client_service_subscriptions", sa.Column("locked_by_user_id", sa.Integer(), nullable=True))
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_create_index_if_missing("client_service_subscriptions", "ix_client_service_subscriptions_financial_year", ["financial_year"])
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_create_index_if_missing("client_service_subscriptions", "ix_client_service_subscriptions_assessment_year", ["assessment_year"])
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_create_index_if_missing("client_service_subscriptions", "ix_client_service_subscriptions_is_locked", ["is_locked"])
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if not _has_column("client_service_task_instances", "financial_year"):
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op.add_column("client_service_task_instances", sa.Column("financial_year", sa.String(length=9), nullable=False, server_default="2025-26"))
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if not _has_column("client_service_task_instances", "assessment_year"):
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op.add_column("client_service_task_instances", sa.Column("assessment_year", sa.String(length=9), nullable=True))
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if not _has_column("client_service_task_instances", "is_locked"):
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op.add_column("client_service_task_instances", sa.Column("is_locked", sa.Boolean(), nullable=False, server_default=sa.false()))
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if not _has_column("client_service_task_instances", "locked_at_utc"):
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op.add_column("client_service_task_instances", sa.Column("locked_at_utc", sa.DateTime(timezone=True), nullable=True))
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if not _has_column("client_service_task_instances", "locked_by_user_id"):
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op.add_column("client_service_task_instances", sa.Column("locked_by_user_id", sa.Integer(), nullable=True))
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_create_index_if_missing("client_service_task_instances", "ix_client_service_task_instances_financial_year", ["financial_year"])
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_create_index_if_missing("client_service_task_instances", "ix_client_service_task_instances_assessment_year", ["assessment_year"])
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_create_index_if_missing("client_service_task_instances", "ix_client_service_task_instances_is_locked", ["is_locked"])
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# SQLite/PostgreSQL compatible replacement of uniqueness to include financial_year.
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with op.batch_alter_table("client_service_subscriptions") as batch_op:
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try:
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batch_op.drop_constraint("uq_client_service_subscription_tenant_client_service", type_="unique")
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except Exception:
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pass
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try:
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batch_op.create_unique_constraint(
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"uq_client_service_subscription_tenant_client_service_year",
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["tenant_id", "client_id", "service_catalogue_id", "financial_year"],
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)
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except Exception:
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pass
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with op.batch_alter_table("client_service_task_instances") as batch_op:
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try:
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batch_op.drop_constraint("uq_client_service_task_subscription_template", type_="unique")
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except Exception:
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pass
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try:
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batch_op.create_unique_constraint(
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"uq_client_service_task_subscription_template_year",
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["subscription_id", "firm_task_template_id", "financial_year"],
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)
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except Exception:
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pass
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def downgrade() -> None:
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pass
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