Migrations: Create `user_roles` table

* migrations/auth/20221114_05_hQun6-create-user-roles-table.py: new migration
* tests/unit/auth/test_migrations_create_tables.py: test new migration
* tests/unit/auth/test_migrations_indexes.py: test new migration

1 files changed, 27 insertions, 0 deletions

diff --git a/migrations/auth/20221114_05_hQun6-create-user-roles-table.py b/migrations/auth/20221114_05_hQun6-create-user-roles-table.py
new file mode 100644
index 0000000..d9532dc
--- /dev/null
+++ b/migrations/auth/20221114_05_hQun6-create-user-roles-table.py
@@ -0,0 +1,27 @@
+"""
+Create 'user_roles' table.
+"""
+
+from yoyo import step
+
+__depends__ = {'20221114_04_tLUzB-initialise-basic-roles'}
+
+steps = [
+    step(
+        """
+        CREATE TABLE IF NOT EXISTS user_roles(
+            user_id TEXT NOT NULL,
+            role_id TEXT NOT NULL,
+            PRIMARY KEY(user_id, role_id),
+            FOREIGN KEY(user_id) REFERENCES users(user_id),
+            FOREIGN KEY(role_id) REFERENCES roles(role_id)
+        ) WITHOUT ROWID
+        """,
+        "DROP TABLE IF EXISTS user_roles"),
+    step(
+        """
+        CREATE INDEX IF NOT EXISTS idx_tbl_user_roles_cols_user_id
+        ON user_roles(user_id)
+        """,
+        "DROP INDEX IF EXISTS idx_tbl_user_roles_cols_user_id")
+]