Laravel - 从DB检索时获取空数据集

时间:2017-03-01 20:21:43

标签: php database laravel-5 eloquent

我正在尝试填充选择下拉列表,但没有看到值的结果。

控制器:

public function create()
{
    $employees = Employee::get();

    $am = DB::table('employees')
        ->where('department', 'Account Manager')
        ->select('id', 'name')
        ->orderBy('name', 'asc')
        ->get();

    $pm = DB::table('employees')
        ->where('department', 'Project Manager')
        ->select('id', 'name')
        ->orderBy('name', 'asc')
        ->get();

    $employees->am = $am;
    $employees->pm = $pm;

    return view('projects/create', [
        'employees' => $employees
        ]);
}

查看:

<div class="form-group">
                  <label>Account Manager</label>
                  <select class="form-control" name="am">
                    <option value=""></option>
                    @foreach ($employees as $employee)
                      <option value="{{ $employee->am['id'] }}">{{ $employee->am['name'] }}</option>
                    @endforeach
                  </select>
                </div>
                <div class="form-group">
                  <label>Project Manager</label>
                  <select class="form-control" name="pm">
                    <option value=""></option>
                    @foreach ($employees as $employee)
                      <option value="{{ $employee->pm['id'] }}">{{ $employee->pm['name'] }}</option>
                    @endforeach
                  </select>
                </div>

所以,我知道有些东西正在运行,因为下拉列表显示有5个空格,它们是数据库中的记录数,但它们都是空白的。执行var_dump会将其显示为NULL。此外,它没有考虑WHERE子句,因为两个下拉列表显示5个空格而不是3个用于项目经理,2个用于客户经理。

我的模型没有任何关系设置。它有吗?因为我为一个不同的视图做了一个连接,它运行得很好。

我的数据库表格如下所示:

项目:

id
name
am_id
pm_id

雇员:

id
name
department

如何在下拉列表中填充值?

1 个答案:

答案 0 :(得分:0)

你试过这个吗?

$employeeAm = Employee::where('department', 'Account Manager')
        ->select('id', 'name')
        ->orderBy('name', 'asc')
        ->get();
$employeePm = Employee::where('department', 'Project Manager')
        ->select('id', 'name')
        ->orderBy('name', 'asc')
        ->get();

然后在您的视图中传递给您的视图$ employeeAm和$ employeePm

@foreach ($employeePm as $employee)
     <option value="{{ $employee->id }}">{{ $employee->name }}</option>
@endforeach

与您的$employeeAm

相同