Laravel合并关系

  • Z时代
  • 2024-01-10
  • 分类：问答

有没有办法在laravel中合并2个关系？

这是现在设置的方式，但是有没有办法我可以将两者合并？

  public function CompetitionsHome() {
    return $this->HasMany( 'Competition', 'home_team_id' );
  }
  public function CompetitionsGuest() {
    return $this->HasMany( 'Competition', 'guest_team_id' );
  }
  public function Competitions() {
    // return both CompetitionsHome & CompetitionsGuest
  }

回答：

试用属性的getter方法，该方法返回从关系返回的合并集合。

public function getCompetitionsAttribute($value)
{
    // There two calls return collections
    // as defined in relations.
    $competitionsHome = $this->competitionsHome;
    $competitionsGuest = $this->competitionsGuest;
    // Merge collections and return single collection.
    return $competitionsHome->merge($competitionsGuest);
}

或者，您可以在返回集合之前调用其他方法以获取不同的结果集。

public function getCompetitionsAttribute($value)
{
    // There two calls return collections
    // as defined in relations.
    // `latest()` method is shorthand for `orderBy('created_at', 'desc')`
    // method call.
    $competitionsHome = $this->competitionsHome()->latest()->get();
    $competitionsGuest = $this->competitionsGuest()->latest()->get();
    // Merge collections and return single collection.
    return $competitionsHome->merge($competitionsGuest);
}

以上是 Laravel合并关系 的全部内容， 来源链接： utcz.com/qa/407678.html

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