Question

我正在尝试从laravel eloquent查询中获取结果集，我将列与数组中的值列表进行匹配。

$authenticated_operation_ids = AccessControl::where('user_id', '=', $user_id)
    ->where('entity_type_id', '=', $operation_entity_id)
    ->pluck('entity_access_id')->toArray();
$authenticated_operations = Operation::whereIn('id', $authenticated_operation_ids);

return view('page.index')->withOperations($authenticated_operations);

Answer 1

您可以尝试：

$authenticated_operation_ids = AccessControl::where('user_id', '=', $user_id)->where('entity_type_id', '=', $operation_entity_id)->pluck('entity_access_id')->toArray();
$authenticated_operations = Operation::whereIn('id', $authenticated_operation_ids)->get();
return view('page.index')->withOperations($authenticated_operations);

在查询末尾添加get()。

Answer 2

1）pluck从单行返回单个值。您希望lists从多行获取单个列。可能不需要toArray，因为它返回值数组

$authenticated_operation_ids = AccessControl::where('user_id', '=', $user_id)
    ->where('entity_type_id', '=', $operation_entity_id)
    ->lists('entity_access_id');

2）您忘记在第二行中实际检索行：

$authenticated_operations = Operation::whereIn('id', $authenticated_operation_ids)
    ->get();

Answer 3

您必须在结果集上调用get（）函数才能获得结果。修改后的代码就像

$authenticated_operation_ids = AccessControl::where('user_id', '=', $user_id)->where('entity_type_id', '=', $operation_entity_id)->get()->pluck('entity_access_id');
$authenticated_operations = Operation::whereIn('id', $authenticated_operation_ids)->get();
return view('page.index')->withOperations($authenticated_operations);

或者您可以使用游标来处理它。

如何从Laravel获取数组结果集的条件

3 个答案: