我想做分页,但它不起作用 Method Illuminate\Database\Eloquent\Collection::links does not exist
I want to do pagination, but its not working Method Illuminate\Database\Eloquent\Collection::links does not exist
控制器:
这是整个控制器代码
<?php
namespace App\Http\Controllers;
use App\Exam_sched;
use App\Subject;
use App\Batch;
use Session;
use Illuminate\Http\Request;
class ExamSchedController extends Controller
{
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
class ExamSchedController extends Controller
{
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
public function index()
{
$exam_scheds= Exam_sched::paginate(3);
return view('examschedule',compact('exam_scheds'));
}
/**
* Show the form for creating a new resource.
*
* @return \Illuminate\Http\Response
*/
public function create()
{
$exam_scheds=Exam_sched::all();
$subjects=Subject::all();
$batches=Batch::all();
return view('examschedule', compact('exam_scheds','subjects','batches'));
}
/**
* Store a newly created resource in storage.
*
* @param \Illuminate\Http\Request $request
* @return \Illuminate\Http\Response
*/
public function store(Request $request)
{
$request->validate([
"date"=>"required",
"subject_id"=>"required",
"batch_id"=>"required",
"roomNo"=>"required",
"startTime"=>"required",
"endTime"=>"required"
]);
// $rules= array(
// "date"=>"required",
// "subject_id"=>"required",
// "batch_id"=>"required",
// "roomNo"=>"required",
// "startTime"=>"required",
// "endTime"=>"required"
// );
// $this->validate($request, $rules);
$exam_sched= new Exam_sched;
$exam_sched->date=$request->date;
$exam_sched->subject_id=$request->subject_id;
$exam_sched->batch_id=$request->batch_id;
$exam_sched->roomNo=$request->roomNo;
$exam_sched->startTime=$request->startTime;
$exam_sched->endTime=$request->endTime;
$exam_sched->save();
Session::flash("message","New Schedule has been added");
return redirect('/examschedule');
}
/**
* Display the specified resource.
*
* @param \App\Exam_sched $exam_sched
* @return \Illuminate\Http\Response
*/
public function show(Exam_sched $exam_sched)
{
//
}
/**
* Show the form for editing the specified resource.
*
* @param \App\Exam_sched $exam_sched
* @return \Illuminate\Http\Response
*/
public function edit($id)
// public function edit()
{
$exam_sched = Exam_sched::find($id);
$subjects=Subject::all();
$batches=Batch::all();
return view('editschedule',compact('exam_sched','subjects','batches'));
// return view('examschedule');
}
/**
* Update the specified resource in storage.
*
* @param \Illuminate\Http\Request $request
* @param \App\Exam_sched $exam_sched
* @return \Illuminate\Http\Response
*/
// public function update(Request $request, Exam_sched $exam_sched)
public function update(Request $request, $id)
{
$exam_sched= Exam_sched::find($id);
$rules= array(
"date"=>"required",
"subject_id"=>"required",
"batch_id"=>"required",
"roomNo"=>"required",
"startTime"=>"required",
"endTime"=>"required"
);
$this->validate($request, $rules);
$exam_sched= Exam_sched::find($id);
$exam_sched->date=$request->date;
$exam_sched->batch_id=$request->batch_id;
$exam_sched->subject_id=$request->subject_id;
$exam_sched->roomNo=$request->roomNo;
$exam_sched->startTime=$request->startTime;
$exam_sched->endTime=$request->endTime;
$exam_sched->save();
Session::flash("message","Schedule has been updated!");
return redirect('/examschedule');
}
/**
* Remove the specified resource from storage.
*
* @param \App\Exam_sched $exam_sched
* @return \Illuminate\Http\Response
*/
public function delete($id)
{ $exam_sched= Exam_sched::find($id);
$schedToRemove=Exam_sched::find($id);
$schedToRemove->delete();
// Session::flash("message","Successfully Deleted!");
return redirect('/examschedule')->with('success','Data Deleted');
}
}
Route:
Route::get('/examschedule', 'ExamSchedController@index');
View Blade:
<tbody>
@if($exam_scheds->count())
@foreach($exam_scheds as $exam_sched)
<tr class="tbody">
<td>{{$exam_sched->date}}</td>
<td>{{$exam_sched->batch->name}}</td>
<td>{{$exam_sched->subject->name}}</td>
<td>{{$exam_sched->roomNo}}</td>
<td>{{$exam_sched->startTime}}</td>
<td>{{$exam_sched->endTime}}</td>
<td>{{$exam_sched->created_at->diffForHumans()}}</td>
</tr>
@endforeach
@endif
</tbody>
</table>
{{ $exam_scheds->links() }}
Method Illuminate\Database\Eloquent\Collection::links does not exist.
请帮助我,我是新来的 laravel
提前致谢
好的,现在我看到问题了。
在您使用的控制器的index
方法中
$exam_scheds= Exam_sched::paginate(3);
但在 create
方法中您使用:
$exam_scheds=Exam_sched::all();
并且您在这两种方法中使用相同的视图。
当然当你使用all()
方法时没有分页所以你不能使用links
然后在视图中。
所以您可能应该更改 create
方法,以便也像 index
方法一样分页。
控制器: 这是整个控制器代码
<?php
namespace App\Http\Controllers;
use App\Exam_sched;
use App\Subject;
use App\Batch;
use Session;
use Illuminate\Http\Request;
class ExamSchedController extends Controller
{
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
class ExamSchedController extends Controller
{
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
public function index()
{
$exam_scheds= Exam_sched::paginate(3);
return view('examschedule',compact('exam_scheds'));
}
/**
* Show the form for creating a new resource.
*
* @return \Illuminate\Http\Response
*/
public function create()
{
$exam_scheds=Exam_sched::all();
$subjects=Subject::all();
$batches=Batch::all();
return view('examschedule', compact('exam_scheds','subjects','batches'));
}
/**
* Store a newly created resource in storage.
*
* @param \Illuminate\Http\Request $request
* @return \Illuminate\Http\Response
*/
public function store(Request $request)
{
$request->validate([
"date"=>"required",
"subject_id"=>"required",
"batch_id"=>"required",
"roomNo"=>"required",
"startTime"=>"required",
"endTime"=>"required"
]);
// $rules= array(
// "date"=>"required",
// "subject_id"=>"required",
// "batch_id"=>"required",
// "roomNo"=>"required",
// "startTime"=>"required",
// "endTime"=>"required"
// );
// $this->validate($request, $rules);
$exam_sched= new Exam_sched;
$exam_sched->date=$request->date;
$exam_sched->subject_id=$request->subject_id;
$exam_sched->batch_id=$request->batch_id;
$exam_sched->roomNo=$request->roomNo;
$exam_sched->startTime=$request->startTime;
$exam_sched->endTime=$request->endTime;
$exam_sched->save();
Session::flash("message","New Schedule has been added");
return redirect('/examschedule');
}
/**
* Display the specified resource.
*
* @param \App\Exam_sched $exam_sched
* @return \Illuminate\Http\Response
*/
public function show(Exam_sched $exam_sched)
{
//
}
/**
* Show the form for editing the specified resource.
*
* @param \App\Exam_sched $exam_sched
* @return \Illuminate\Http\Response
*/
public function edit($id)
// public function edit()
{
$exam_sched = Exam_sched::find($id);
$subjects=Subject::all();
$batches=Batch::all();
return view('editschedule',compact('exam_sched','subjects','batches'));
// return view('examschedule');
}
/**
* Update the specified resource in storage.
*
* @param \Illuminate\Http\Request $request
* @param \App\Exam_sched $exam_sched
* @return \Illuminate\Http\Response
*/
// public function update(Request $request, Exam_sched $exam_sched)
public function update(Request $request, $id)
{
$exam_sched= Exam_sched::find($id);
$rules= array(
"date"=>"required",
"subject_id"=>"required",
"batch_id"=>"required",
"roomNo"=>"required",
"startTime"=>"required",
"endTime"=>"required"
);
$this->validate($request, $rules);
$exam_sched= Exam_sched::find($id);
$exam_sched->date=$request->date;
$exam_sched->batch_id=$request->batch_id;
$exam_sched->subject_id=$request->subject_id;
$exam_sched->roomNo=$request->roomNo;
$exam_sched->startTime=$request->startTime;
$exam_sched->endTime=$request->endTime;
$exam_sched->save();
Session::flash("message","Schedule has been updated!");
return redirect('/examschedule');
}
/**
* Remove the specified resource from storage.
*
* @param \App\Exam_sched $exam_sched
* @return \Illuminate\Http\Response
*/
public function delete($id)
{ $exam_sched= Exam_sched::find($id);
$schedToRemove=Exam_sched::find($id);
$schedToRemove->delete();
// Session::flash("message","Successfully Deleted!");
return redirect('/examschedule')->with('success','Data Deleted');
}
}
Route:
Route::get('/examschedule', 'ExamSchedController@index');
View Blade:
<tbody>
@if($exam_scheds->count())
@foreach($exam_scheds as $exam_sched)
<tr class="tbody">
<td>{{$exam_sched->date}}</td>
<td>{{$exam_sched->batch->name}}</td>
<td>{{$exam_sched->subject->name}}</td>
<td>{{$exam_sched->roomNo}}</td>
<td>{{$exam_sched->startTime}}</td>
<td>{{$exam_sched->endTime}}</td>
<td>{{$exam_sched->created_at->diffForHumans()}}</td>
</tr>
@endforeach
@endif
</tbody>
</table>
{{ $exam_scheds->links() }}
Method Illuminate\Database\Eloquent\Collection::links does not exist.
请帮助我,我是新来的 laravel 提前致谢
好的,现在我看到问题了。
在您使用的控制器的index
方法中
$exam_scheds= Exam_sched::paginate(3);
但在 create
方法中您使用:
$exam_scheds=Exam_sched::all();
并且您在这两种方法中使用相同的视图。
当然当你使用all()
方法时没有分页所以你不能使用links
然后在视图中。
所以您可能应该更改 create
方法,以便也像 index
方法一样分页。