From 7057992136b143860ce95e3322458c4a63da037b Mon Sep 17 00:00:00 2001
From: xiaji <xiaji@mavis.local>
Date: Sat, 13 Jun 2026 21:15:22 +0800
Subject: [PATCH] =?UTF-8?q?fix(alembic=200007):=20=E6=94=B9=E7=94=A8=20sa.?=
 =?UTF-8?q?Column=20=E5=86=85=E5=B5=8C=20ForeignKey=20=E5=BD=A2=E5=BC=8F,?=
 =?UTF-8?q?=E9=81=BF=E5=85=8D=E5=88=97=E6=95=B0=E4=B8=8D=E5=8C=B9=E9=85=8D?=
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之前用独立 sa.ForeignKeyConstraint 报 ArgumentError,
改用 sa.Column(..., sa.ForeignKey(...), ...) 形式(
跟 model 里的 mapped_column 形式对齐)。
---
 .../alembic/versions/0007_article_reads.py    | 33 ++++++++++++-------
 1 file changed, 21 insertions(+), 12 deletions(-)

diff --git a/backend/alembic/versions/0007_article_reads.py b/backend/alembic/versions/0007_article_reads.py
index 4909c03..a8e4fc0 100644
--- a/backend/alembic/versions/0007_article_reads.py
+++ b/backend/alembic/versions/0007_article_reads.py
@@ -1,8 +1,8 @@
 """文章已读记录(per-user)
 
-- article_reads.user_id       BIGINT  FK users.id    ON DELETE CASCADE
-- article_reads.article_id    BIGINT  FK articles.id ON DELETE CASCADE
-- article_reads.read_at       TIMESTAMPTZ  DEFAULT now()
+- article_reads.user_id       INTEGER       FK users.id    ON DELETE CASCADE
+- article_reads.article_id    BIGINT        FK articles.id ON DELETE CASCADE
+- article_reads.read_at       TIMESTAMPTZ   DEFAULT now()
 - 复合主键 (user_id, article_id) — 天然幂等
 
 Revision ID: 0007
@@ -25,16 +25,25 @@ depends_on = None
 def upgrade() -> None:
     op.create_table(
         "article_reads",
-        sa.Column("user_id", sa.Integer, nullable=False),  # users.id 是 Integer
-        sa.Column("article_id", sa.BigInteger, nullable=False),  # articles.id 是 BigInteger
-        sa.Column("read_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
+        sa.Column(
+            "user_id",
+            sa.Integer,
+            sa.ForeignKey("users.id", ondelete="CASCADE"),
+            nullable=False,
+        ),
+        sa.Column(
+            "article_id",
+            sa.BigInteger,
+            sa.ForeignKey("articles.id", ondelete="CASCADE"),
+            nullable=False,
+        ),
+        sa.Column(
+            "read_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("now()"),
+        ),
         sa.PrimaryKeyConstraint("user_id", "article_id", name="pk_article_reads"),
-        sa.ForeignKeyConstraint(
-            "user_id", ["users.id"], ondelete="CASCADE",
-        ),
-        sa.ForeignKeyConstraint(
-            "article_id", ["articles.id"], ondelete="CASCADE",
-        ),
     )
     op.create_index(
         "ix_article_reads_user_read_at",