Add parent WeChat identity mapping

talkingq-url/database/init_db.py

@@ -381,6 +381,32 @@ async def _ensure_parent_wechat_accounts_table(conn) -> None:
     )
 
 
+async def _ensure_parent_wechat_identities_table(conn) -> None:
+    await conn.execute(
+        text(
+            """
+            CREATE TABLE IF NOT EXISTS parent_wechat_identities (
+              id BIGINT NOT NULL AUTO_INCREMENT,
+              user_id BIGINT NOT NULL,
+              app_id VARCHAR(64) NOT NULL,
+              account_type VARCHAR(32) NOT NULL,
+              openid VARCHAR(64) NOT NULL,
+              unionid VARCHAR(64) NULL,
+              created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+              updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+              PRIMARY KEY (id),
+              UNIQUE KEY uq_parent_wechat_identity_app_openid (app_id, account_type, openid),
+              KEY idx_parent_wechat_identity_user (user_id),
+              KEY idx_parent_wechat_identity_unionid (unionid),
+              CONSTRAINT fk_parent_wechat_identity_user
+                FOREIGN KEY (user_id)
+                REFERENCES parents (user_id)
+            ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
+            """
+        )
+    )
+
+
 async def _ensure_wechat_mp_bind_states_table(conn) -> None:
     await conn.execute(
         text(
@@ -428,6 +454,7 @@ async def init_db():
             await _ensure_cards_allow_multiple_per_device(conn)
             await _ensure_device_family_tables(conn)
             await _ensure_parent_wechat_accounts_table(conn)
+            await _ensure_parent_wechat_identities_table(conn)
             await _ensure_wechat_mp_bind_states_table(conn)
         await engine.dispose()
         session_logger.info("system", "database", "数据库表已成功创建")

talkingq-url/database/models.py

@@ -245,6 +245,25 @@ class ParentWechatAccount(Base):
     updated_at: Mapped[Optional[datetime]] = mapped_column(DateTime, server_default=text("CURRENT_TIMESTAMP"))
 
 
+class ParentWechatIdentity(Base):
+    __tablename__ = "parent_wechat_identities"
+    __table_args__ = (
+        UniqueConstraint("app_id", "account_type", "openid", name="uq_parent_wechat_identity_app_openid"),
+        Index("idx_parent_wechat_identity_user", "user_id"),
+        Index("idx_parent_wechat_identity_unionid", "unionid"),
+        {'mysql_charset': 'utf8mb4', 'mysql_collate': 'utf8mb4_unicode_ci'}
+    )
+
+    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    user_id: Mapped[int] = mapped_column(BigInteger, ForeignKey("parents.user_id"), nullable=False)
+    app_id: Mapped[str] = mapped_column(String(64), nullable=False)
+    account_type: Mapped[str] = mapped_column(String(32), nullable=False)
+    openid: Mapped[str] = mapped_column(String(64), nullable=False)
+    unionid: Mapped[Optional[str]] = mapped_column(String(64))
+    created_at: Mapped[Optional[datetime]] = mapped_column(DateTime, server_default=text("CURRENT_TIMESTAMP"))
+    updated_at: Mapped[Optional[datetime]] = mapped_column(DateTime, server_default=text("CURRENT_TIMESTAMP"))
+
+
 class WechatMpBindState(Base):
     __tablename__ = "wechat_mp_bind_states"
     __table_args__ = (