75 lines
3.7 KiB
Python
75 lines
3.7 KiB
Python
|
"""departments, per-department categories and budgets, approval workflows
|
||
|
|
|
||
|
|
Existing data is kept: everything created with version 1 is moved into a department called "IT".
|
||
|
|
|
||
|
|
Revision ID: 0002
|
||
|
|
Revises: 0001
|
||
|
|
"""
|
||
|
|
import sqlalchemy as sa
|
||
|
|
from alembic import op
|
||
|
|
|
||
|
|
revision = "0002"
|
||
|
|
down_revision = "0001"
|
||
|
|
branch_labels = None
|
||
|
|
depends_on = None
|
||
|
|
|
||
|
|
|
||
|
|
def _drop_unique_on(table: str, columns: list[str]) -> None:
|
||
|
|
insp = sa.inspect(op.get_bind())
|
||
|
|
for uc in insp.get_unique_constraints(table):
|
||
|
|
if uc["column_names"] == columns:
|
||
|
|
op.drop_constraint(uc["name"], table, type_="unique")
|
||
|
|
|
||
|
|
|
||
|
|
def upgrade() -> None:
|
||
|
|
op.create_table(
|
||
|
|
"departments",
|
||
|
|
sa.Column("id", sa.Integer(), primary_key=True),
|
||
|
|
sa.Column("name", sa.String(length=120), nullable=False, unique=True),
|
||
|
|
sa.Column("active", sa.Boolean(), nullable=False, server_default=sa.true()),
|
||
|
|
sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
|
||
|
|
)
|
||
|
|
op.create_table(
|
||
|
|
"workflow_steps",
|
||
|
|
sa.Column("id", sa.Integer(), primary_key=True),
|
||
|
|
sa.Column("department_id", sa.Integer(), sa.ForeignKey("departments.id", ondelete="CASCADE"), nullable=False),
|
||
|
|
sa.Column("position", sa.Integer(), nullable=False, server_default="0"),
|
||
|
|
sa.Column("name", sa.String(length=120), nullable=False),
|
||
|
|
sa.Column("approver_mode", sa.String(length=10), nullable=False, server_default="role"),
|
||
|
|
sa.Column("approver_ids", sa.JSON(), nullable=True),
|
||
|
|
)
|
||
|
|
op.create_index("ix_workflow_steps_department_id", "workflow_steps", ["department_id"])
|
||
|
|
|
||
|
|
op.add_column("users", sa.Column("department_id", sa.Integer(), nullable=True))
|
||
|
|
op.add_column("categories", sa.Column("department_id", sa.Integer(), nullable=True))
|
||
|
|
op.add_column("budget_years", sa.Column("department_id", sa.Integer(), nullable=True))
|
||
|
|
op.add_column("budget_years", sa.Column("current_step", sa.Integer(), nullable=True))
|
||
|
|
|
||
|
|
conn = op.get_bind()
|
||
|
|
has_data = any(conn.execute(sa.text(f"SELECT 1 FROM {t} LIMIT 1")).first()
|
||
|
|
for t in ("users", "categories", "budget_years"))
|
||
|
|
if has_data:
|
||
|
|
conn.execute(sa.text("INSERT INTO departments (name, active, created_at) VALUES ('IT', true, now())"))
|
||
|
|
dept_id = conn.execute(sa.text("SELECT id FROM departments WHERE name = 'IT'")).scalar_one()
|
||
|
|
for table in ("users", "categories", "budget_years"):
|
||
|
|
conn.execute(sa.text(f"UPDATE {table} SET department_id = :d"), {"d": dept_id})
|
||
|
|
conn.execute(sa.text("UPDATE budget_years SET current_step = 0 WHERE status = 'in_review'"))
|
||
|
|
|
||
|
|
op.alter_column("categories", "department_id", nullable=False)
|
||
|
|
op.alter_column("budget_years", "department_id", nullable=False)
|
||
|
|
op.create_foreign_key("fk_users_department", "users", "departments", ["department_id"], ["id"])
|
||
|
|
op.create_foreign_key("fk_categories_department", "categories", "departments", ["department_id"], ["id"],
|
||
|
|
ondelete="CASCADE")
|
||
|
|
op.create_foreign_key("fk_budget_years_department", "budget_years", "departments", ["department_id"], ["id"])
|
||
|
|
op.create_index("ix_categories_department_id", "categories", ["department_id"])
|
||
|
|
op.create_index("ix_budget_years_department_id", "budget_years", ["department_id"])
|
||
|
|
|
||
|
|
_drop_unique_on("categories", ["name_en"])
|
||
|
|
_drop_unique_on("budget_years", ["year"])
|
||
|
|
op.create_unique_constraint("uq_categories_department_name", "categories", ["department_id", "name_en"])
|
||
|
|
op.create_unique_constraint("uq_budget_years_department_year", "budget_years", ["department_id", "year"])
|
||
|
|
|
||
|
|
|
||
|
|
def downgrade() -> None:
|
||
|
|
raise NotImplementedError("Restore a backup taken before the upgrade instead.")
|