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"""
Drop 'group_roles' table.
"""
import sqlite3
from yoyo import step
__depends__ = {'20240606_02_ubZri-create-resource-roles-table'}
def drop_group_roles(conn):
"""Delete `group_roles` and related data."""
conn.row_factory = sqlite3.Row
cursor = conn.cursor()
cursor.execute("DELETE FROM user_roles WHERE role_id IN "
"(SELECT role_id FROM group_roles)")
cursor.execute("DELETE FROM roles WHERE role_id IN"
"(SELECT role_id FROM group_roles)")
cursor.execute("DROP TABLE IF EXISTS group_roles")
cursor.close()
def restore_group_roles(conn):
"""Restore the `group_roles` table."""
conn.row_factory = sqlite3.Row
cursor = conn.cursor()
cursor.execute(
"""
CREATE TABLE group_roles(
group_role_id TEXT PRIMARY KEY,
group_id TEXT NOT NULL,
role_id TEXT NOT NULL,
UNIQUE (group_id, role_id),
FOREIGN KEY(group_id) REFERENCES groups(group_id)
ON UPDATE CASCADE ON DELETE RESTRICT,
FOREIGN KEY(role_id) REFERENCES roles(role_id)
ON UPDATE CASCADE ON DELETE RESTRICT
) WITHOUT ROWID
""")
cursor.execute(
"""
CREATE INDEX idx_tbl_group_roles_cols_group_id
ON group_roles(group_id)
""")
cursor.close()
steps = [
step(drop_group_roles, restore_group_roles)
]
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