搜索查询在Laravel中不起作用

Question

I need to return the results of what the user write in the search bar, but when i press search to test it nothing happens.

this is how i created the search bar

<form class="form-inline" role="search" action="{{ route('search-source') }}" method="POST">
    {{ csrf_field() }}
    <div class="form-group">
        <input type="text" class="form-control" name="searchbar" placeholder="Find a source!">
    </div>
    <button type="submit" class="btn btn-default">Submit</button>
</form>

in my controller i have the following code to find what the user has entered in the search bar. It searches the datebase for a title thats like whats written in the search bar. If nothing is found it return's an error (this is working). if a row higher than 0 return it need to bring that result back to the page

public function searchSource(Request $request){
    $this->validate($request,[
        'searchbar' => 'required',
    ]);

    $find = $request['searchbar'];

    $query = Source::where('title','LIKE', '%'.$find.'%')->where('user_id', Auth::user()->id)->get();

    if(count($query) > 0) {
        return redirect()->route('sources-index')->with(['query' => $query]);
    }else{
        return redirect()->route('sources-index')->with('customerror', 'nothing found, try a different searchterm.');
    }
}

back on the page it need to get the result if there is asked for a searchterm, else it need to give everything of the database

@if(!empty($query))
    @foreach($query as $querys)
        <tr>
            <td class="source-cell">
                {{$querys->title}}
            </td>

            <td>
                {{$querys->summary}}
            </td>

            <td>
                {{$querys->course->name}}
            </td>
        </tr>
    @endforeach
@else
    @foreach ($sources as $source)
        <tr>
            <td class="source-cell">
                {{$source->title}}
            </td>

            <td>
                {{$source->summary}}
            </td>

            <td>
                {{$source->course->name}}
            </td>
        </tr>
    @endforeach
@endif

I tried dd() on a couple of places and everything worked fine, except on the page, i tried dd($query) after the if statement nothing happend.

I tried it after the foreach nothing happend.

But when i tried it before the if statement i got an error

Undefined variable: query (View: ...\\resources\\views\\sources\\index.blade.php)

What am i doing wrong.

Answer 1

In your above code $query is misspelled

Change

@if(!empty($uery))

to

@if(!empty($query))

Modify your controller like below :

public function searchSource(Request $request){
    $this->validate($request,[
        'searchbar' => 'required',
    ]);
    $find = $request['searchbar'];
    $query = Source::where('title','LIKE', '%'.$find.'%')->where('user_id', Auth::user()->id)->get();
    return redirect()->route('sources-index')->with(['query' => $query]);

}

Modify your view like below :

@if(!empty($uery))
    @foreach($query as $querys)
        <tr>
            <td class="source-cell">
                {{$querys->title}}
            </td>

            <td>
                {{$querys->summary}}
            </td>

            <td>
                {{$querys->course->name}}
            </td>
        </tr>
    @endforeach
@else
nothing found, try a different searchterm.
@endif
@if(!empty($sources))
    @foreach ($sources as $source)
        <tr>
            <td class="source-cell">
                {{$source->title}}
            </td>

            <td>
                {{$source->summary}}
            </td>

            <td>
                {{$source->course->name}}
            </td>
        </tr>
    @endforeach
@else
nothing found, try a different searchterm.
@endif

Because in your else part redirection does not have $query variable.

Answer 2

@ Peter Arents能否请您尝试以下操作

$query = Source::where('title', 'LIKE', "%$find%")->where('user_id', '=', Auth::user()->id);

Answer 3

redirect()->with() uses session to store the data, so you'll need to change the code to:

@if (session()->has('query'))
    @foreach(session('query') as $querys)

Or, you need to change redirect() part to this:

return view('query.index', compact('query'));