Laravel框架實(shí)現(xiàn)簡(jiǎn)單的學(xué)生信息管理平臺(tái)案例【附源碼下載】

//這是路由文件的關(guān)鍵代碼
Route::group(['middleware' => ['web']], function () {
  Route::get('student/index',['uses'=>'StudentController@index']);
  Route::any('student/create',['uses'=>'StudentController@create']);
  Route::post('student/save',['uses'=>'StudentController@save']);
  Route::any('student/update/{id}',['uses'=>'StudentController@update']);
  Route::any('student/detail/{id}',['uses'=>'StudentController@detail']);
  Route::any('student/delete/{id}',['uses'=>'StudentController@delete']);
});

//控制器文件的關(guān)鍵代碼,增刪改查
class StudentController extends Controller{
  //學(xué)生列表
  public function index(){
    $students = Student::paginate(20);
    //dd($students);
    return view('student.index',[
      'students'=>$students,
    ]);
  }
  //新增頁(yè)面
  public function create(Request $request){
    $student = new Student();
    if($request->isMethod('POST')){
      //1.控制器驗(yàn)證
      /*$this->validate($request,[
        'Student.name'=>'required|min:2|max:20',
        'Student.age' =>'required|integer',
        'Student.sex' =>'required|integer',
      ],[
        'required'=>':attribute 為必填項(xiàng)',
        'min'=>':attribute長(zhǎng)度不符合要求',
        'integer'=>':attribute必須為整數(shù)',
      ],[
        'Student.name'=>'姓名',
        'Student.age' =>'年齡',
        'Student.sex' =>'性別'
      ]);*/
      //2.Validator類驗(yàn)證
      $validator = \Validator::make($request->input(),[
        'Student.name'=>'required|min:2|max:20',
        'Student.age' =>'required|integer',
        'Student.sex' =>'required|integer',
      ],[
        'required'=>':attribute 為必填項(xiàng)',
        'min'=>':attribute長(zhǎng)度不符合要求',
        'integer'=>':attribute必須為整數(shù)',
      ],[
        'Student.name'=>'姓名',
        'Student.age' =>'年齡',
        'Student.sex' =>'性別'
      ]);
      //withInput保持?jǐn)?shù)據(jù)
      if($validator->fails()){
        return redirect()->back()->withErrors($validator)->withInput();
      }
      $data = $request->input('Student');
      if(Student::create($data)){
        return redirect('student/index')->with('success','添加成功');
      }else{
        return redirect()->back();
      }
    }
    return view('student.create',[
      'student'=>$student,
    ]);
  }
  //保存數(shù)據(jù)操作
  public function save(Request $request){
    $data = $request->input('Student');
    $student = new Student();
    $student->name = $data['name'];
    $student->age = $data['age'];
    $student->sex = $data['sex'];
    if($student->save()){
      return redirect('student/index');
    }else{
      return redirect()->back();
    }
  }
  //更新數(shù)據(jù)操作
  public function update(Request $request,$id){
    $student = Student::find($id);
    if($request->isMethod('POST')){
      //Validator類驗(yàn)證
      $validator = \Validator::make($request->input(),[
        'Student.name'=>'required|min:2|max:20',
        'Student.age' =>'required|integer',
        'Student.sex' =>'required|integer',
      ],[
        'required'=>':attribute 為必填項(xiàng)',
        'min'=>':attribute長(zhǎng)度不符合要求',
        'integer'=>':attribute必須為整數(shù)',
      ],[
        'Student.name'=>'姓名',
        'Student.age' =>'年齡',
        'Student.sex' =>'性別'
      ]);
      //withInput保持?jǐn)?shù)據(jù)
      if($validator->fails()){
        return redirect()->back()->withErrors($validator)->withInput();
      }
      $data = $request->input('Student');
      $student->name = $data['name'];
      $student->age = $data['age'];
      $student->sex = $data['sex'];
      if($student->save()){
        return redirect('student/index')->with('success','修改成功-'.$id);
      }
    }
    return view('student.update',[
      'student'=>$student,
    ]);
  }
  //信息詳情
  public function detail($id){
    $student = Student::find($id);
    return view('student.detail',[
      'student'=>$student,
    ]);
  }
  //刪除操作
  public function delete($id){
    $student = Student::find($id);
    if($student->delete()){
      return redirect('student/index')->with('success','刪除成功-'.$id);
    }else{
      return redirect('student/index')->with('error','刪除失敗-'.$id);
    }
  }
}