在我的Model类中; 目前我已定义为;
返回$ this-> belongsTo( 相关 : Site :: class, foreignKey: 'SiteId', ownerKey :'SiteId');; ----->这有效。
但我想将组合定义为外键, 例如:CompanyCode + SiteId
My Current和Target模型都有两列(即:CompanyCode + SiteId)。该组合将返回单个条目。我想在我当前的模型中检索它。
我该怎么做?
我的网站模型就像;
class Site extends Model
{
protected $table = 'vwSitesPortal';
protected $primaryKey = 'SiteId';
...
My Current模型就像;
class Alarm extends Model
{
protected $table = 'vwAlarm';
protected $primaryKey = 'AlarmId';
...
public function Site()
{
return $this->belongsTo(**related**: Site::class,
**foreignKey**:'SiteId', **ownerKey:**'SiteId'
}
答案 0 :(得分:-1)
Schema::create('favorites', function (Blueprint $table) {
$table->integer('lecture_id')->unsigned();
$table->integer('user_id')->unsigned();
$table->timestamps();
$table->primary(['lecture_id', 'user_id']);
$table->foreign('lecture_id')
->references('id')->on('lectures')
->onDelete('cascade');
$table->foreign('user_id')
->references('id')->on('users')
->onDelete('cascade');
});
see this example