Question

我想在我的主题表中有多个记录，但它只保留我的section表的最后一条记录。

我根据所选的保管箱（部分）获取记录，然后在该下拉列表中，它将获取该表中的内容。

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>

Answer 1

看起来你错过了内部foreach上的花括号。

所以你的代码在这里

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

相当于下面的代码段。因此，每个部分只保存1个主题。

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

这里应该是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();
    }
}

Laravel：如何获得多条记录

1 个答案: