新增用户注册功能

backend/alembic/versions/20240501_000002_add_avatar_to_users.py

@@ -0,0 +1,19 @@
+"""add avatar_url to users"""
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = "20240501_000002"
+down_revision = "20240501_000001"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.add_column("users", sa.Column("avatar_url", sa.String(length=500), nullable=True))
+
+
+def downgrade() -> None:
+    op.drop_column("users", "avatar_url")