拉拉维尔 |保存并显示两个关系

Question

我即将完成我的 CMS，但我有一个小问题。

我可以创建几个团队，效果很好。

我可以制作几款游戏，效果也很好。

现在我想在这些团队之间创建比赛，这意味着我有两个数据透视表。 一个叫game_match，另一个叫match_team。

game_match由game_id和match_id组成

match_team由match_id、team1_id和team2_id组成

我的match/create.blade.php 每个团队都有两个下拉字段。

保存到数据库的单个关系对我来说很好，因为我已经这样做了几次，但我不知道如何保存两个关系。

这是我目前得到的：

内部match/create.blade.php

<div class="field m-t-20 is-inline-block">
    <p class="control">
        <label for="home" class="label"><b>{{ trans_choice('messages.home', 1) }}</b></label>
        <input type="hidden" name="home" id="home" :value="homeSelected">
        <div class="select">
            <select v-model="homeSelected">
                @foreach($teams as $team)
                    <option value="{{ $team->id }}">{{ $team->name }}</option>
                @endforeach
            </select>
        </div>
    </p>
</div>

<div class="field m-t-20 is-inline-block">
    <p class="control">
        <label for="opponent" class="label"><b>{{ trans_choice('messages.opponent', 1) }}</b></label>
        <input type="hidden" name="opponent" id="opponent" :value="opponentSelected">
        <div class="select">
            <select v-model="opponentSelected">
                @foreach($teams as $team)
                    <option value="{{ $team->id }}">{{ $team->name }}</option>
                @endforeach
            </select>
        </div>
    </p>
</div>

@section('scripts')
    <script>
        var app = new Vue({
            el: '#app',
            data: {
                homeSelected: "",
                opponentSelected: "",
                gameSelected: ""
            }
        });
    </script>
@endsection

MatchController.php

public function store(Request $request)
    {
        $this->validate($request, [
            'title' => 'required|max:255',
            'matchday' => 'required',
        ]);

        $match = new Match();

        $match->title = $request->title;
        $match->matchday = $request->matchday;

        if ($match->save()) {
            $match->games()->sync($request->game);
            $match->teams()->sync( [
                ['team1_id' => $request->home, 'team2_id' => $request->opponent],
            ]);

            Session::flash('success', trans('messages.created', ['item' => $match->title]));
            return redirect()->route('matches.show', $match->id);
        } else {
            Session::flash('error', trans('messages.error'));
            return redirect()->route('matches.create')->withInput();
        }
    }

match.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;

class Match extends Model
{
    use SoftDeletes; // <-- Use This Instead Of SoftDeletingTrait

    protected $fillable = [
        'title'
    ];

    protected $dates = ['deleted_at'];

    public function setHomeTeam () {}

    public function teams () {
        return $this->belongsToMany('App\Team', 'match_team', 'match_id', 'team1_id');
    }

    public function games () {
        return $this->belongsToMany('App\Game', 'game_match');
    }

    public function getHomeTeam() {
        return $this->belongsToMany('App\Team', 'match_team', 'match_id', 'team1_id');
    }

    public function getOpponentTeam() {
        return $this->belongsToMany('App\Team', 'match_team', 'match_id', 'team2_id');
    }
}

有人可以帮我吗？

Answer 1

您最好使用 firstOrCreate()、updateOrCreate 或 attach() 方法。