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持久 selectList 导致错误“无法将类型‘BaseBackend backend0’与‘SqlBackend’匹配”
我遇到以下编译错误 Couldn t match type BaseBackend backend0 with SqlBackend arising from a use of runSqlite The type variable bac
Haskell
haskellpersistent
Haskell - 无法将类型“PersistEntityBackend record0”与“SqlBackend”匹配
我正在尝试通过 Yesod 中的 id 获取记录 我的代码是 getEditActorR Handler Html getEditActorR do actorId lt runInputGet ireq intField id actor
Haskell
yesod
haskellpersistent