Laravel 拉威尔：如何获得多个记录

我想在subject表中有多条记录，但它始终只获取sections表的最后一条记录

我将根据所选的下拉框（部分）提取记录，并在该下拉框中提取该表中的内容

这是我的控制器

public function subjectCreate(){
    $users1 = [];
    $sections = [];
    $users1 = User::where('isTeacher', '1')->where('isAdmin', '0')->lists('firstname','id');
    $sections = Section1::lists('name','name');
    return View::make('teacher.create_subject', compact('users1','sections')
    );
}

public function subjectStore(){
    $validate = Validator::make(Input::all(), array(
        'name' => 'required|unique:subject'
        ));
    if ($validate->fails()){
        return Redirect::route('subjectCreate')->withErrors($validate)->withInput();
    } else {
        foreach(Section1::where('name', '=',  Input::get('section_name'))->get() as $section)
        foreach(User::where('id', '=', Input::get('teacher_id'))->get() as $teacher)
        $teacher_id = Input::get('teacher_id');
        $subject = new Subject1();
        $subject->name = Input::get('name');
        $subject->student_id = $section->student_id;   
        $subject->student_firstname = $section->student_firstname;  
        $subject->student_lastname = $section->student_lastname;   
        $subject->teacher_id = $teacher_id;
        $subject->teacher_firstname = $teacher->firstname;  
        $subject->teacher_lastname = $teacher->lastname;
        $subject->section_id = $section->id;
        $subject->section_name = $section->name;
        $subject->save();
    }
    return Redirect::route('viewSubject')->with('success', 'SUBJECT HAS BEEN RECORDED!');
}

以下是我的下拉列表

<div class="form-group">
    {{ Form::label('teacher_name', 'Assign a Teacher to this subject:') }}
    {{ Form::select('teacher_id', $users1, null) }}
</div>
<div class="form-group">
    {{ Form::label('section_name', 'Assign a Section to this subject:') }}
    {{ Form::select('section_name', $sections, null) }}
</div>

{{Form:：label（'teacher_name'，'Assign a teacher to this subject:'）}
{{Form:：select（'teacher_id'，$users1，null）}
{{Form:：label（'section_name'，'Assign a section to this subject:'）}
{{Form:：select（'section_name'，$sections，null）}

看起来您缺少内部

foreach

上的花括号

你的代码在这里

foreach(User::where('id', '=', Input::get('teacher_id'))->get() as $teacher)
$teacher_id = Input::get('teacher_id');
$subject = new Subject1();
...

与下面的代码段等效。因此，每个部分仅保存1个主题

foreach(User::where('id', '=', Input::get('teacher_id'))->get() as $teacher) {
    $teacher_id = Input::get('teacher_id');
}
$subject = new Subject1();
...

下面是应该放在

else

块中的代码

foreach(Section1::where('name', '=',  Input::get('section_name'))->get() as $section) {
    foreach(User::where('id', '=', Input::get('teacher_id'))->get() as $teacher) {
        $teacher_id = Input::get('teacher_id');
        $subject = new Subject1();
        $subject->name = Input::get('name');
        $subject->student_id = $section->student_id;   
        $subject->student_firstname = $section->student_firstname;  
        $subject->student_lastname = $section->student_lastname;   
        $subject->teacher_id = $teacher_id;
        $subject->teacher_firstname = $teacher->firstname;  
        $subject->teacher_lastname = $teacher->lastname;
        $subject->section_id = $section->id;
        $subject->section_name = $section->name;
        $subject->save();
    }
}

---

需要注意的是：在将

$users1

或

节

传递到视图之前，不需要将它们定义为数组，这似乎是多余的。你在用那些

foreach（）

循环做什么？这也是拉威尔4号还是5号？你有两个标签，但它们不一样……我使用的是laravel 4，在foreach循环中，它得到的数据与分区表中的学生一样具有这种条件，它仍然只得到一条记录：（，但是它得到了该分区中学生的第一列：）你是怎么得到的？