feat: Switch to postgres

Migrate from MariaDB to PostgreSQL.

Signed-off-by: moson <moson@archlinux.org>

aurweb/users/util.py

@@ -1,6 +1,7 @@
 from http import HTTPStatus
 
 from fastapi import HTTPException
+from sqlalchemy import func
 
 from aurweb import db
 from aurweb.models import User
@@ -13,7 +14,7 @@ def get_user_by_name(username: str) -> User:
     :param username: User.Username
     :return: User instance
     """
-    user = db.query(User).filter(User.Username == username).first()
+    user = db.query(User).filter(func.lower(User.Username) == username.lower()).first()
     if not user:
         raise HTTPException(status_code=int(HTTPStatus.NOT_FOUND))
     return db.refresh(user)

aurweb/users/validate.py

@@ -7,7 +7,7 @@ All functions in this module raise aurweb.exceptions.ValidationError
 when encountering invalid criteria and return silently otherwise.
 """
 from fastapi import Request
-from sqlalchemy import and_
+from sqlalchemy import and_, func
 
 from aurweb import aur_logging, config, db, l10n, models, time, util
 from aurweb.auth import creds
@@ -157,7 +157,11 @@ def username_in_use(
 ) -> None:
     exists = (
         db.query(models.User)
-        .filter(and_(models.User.ID != user.ID, models.User.Username == U))
+        .filter(
+            and_(
+                models.User.ID != user.ID, func.lower(models.User.Username) == U.lower()
+            )
+        )
         .exists()
     )
     if db.query(exists).scalar():
@@ -175,7 +179,9 @@ def email_in_use(
 ) -> None:
     exists = (
         db.query(models.User)
-        .filter(and_(models.User.ID != user.ID, models.User.Email == E))
+        .filter(
+            and_(models.User.ID != user.ID, func.lower(models.User.Email) == E.lower())
+        )
         .exists()
     )
     if db.query(exists).scalar():