Laravel 4通過另一個模型的模型關系

Question

我正在嘗試將多個模型綁定到一個表單。 目前，我有4種型號：

<?php

class DemDataSet extends Eloquent {

    public $timestamps = false;
    protected $connection = 'epcr_dem_data';
    protected $table = 'DEMDataSet';
    protected $primaryKey = 'pk_DEMDataSet';

    public function DemographicReport(){
        return $this->hasOne('DemographicReport','fk_DemDataSet','pk_DemDataSet');
    }

}

class DemographicReport extends Eloquent {

    public $timestamps = false;
    protected $connection = 'epcr_dem_data';
    protected $table = 'DemographicReport';
    protected $primaryKey = 'pk_DemographicReport';

    public function DemDataSet(){
        return $this->belongsTo('DemDataSet','fk_DemDataSet','pk_DemDataSet');
    }

    public function dAgency(){
        return $this->hasOne('dAgency','fk_DemographicReport','pk_DemographicReport');
    }

}

class dAgency extends Eloquent {

    public $timestamps = false;
    protected $connection = 'epcr_dem_data';
    protected $table = 'dAgency';
    protected $primaryKey = 'pk_dAgency';

    public function DemographicReport(){
        return $this->belongsTo('DemographicReport','fk_DemographicReport','pk_DemographicReport');
    }

    public function dAgency_10(){
        return $this->hasMany('dAgency_10','fk_dAgency','pk_dAgency');
    }

}

class dAgency_10 extends Eloquent {

    public $timestamps = false;
    protected $connection = 'epcr_dem_data';
    protected $table = 'dAgency_10';
    protected $primaryKey = 'pk_dAgency_10';

    public function dAgency(){
        return $this->belongsTo('dAgency','fk_dAgency','pk_dAgency');
    }

}

?>

我通過控制器將其傳遞給視圖：

public function index()
{
    //THIS is the line I need help with (I think):
    $agency = dAgency::with('dAgency_10','DemographicReport')->find(1);

    //for troubleshooting:
    echo "<pre>",print_r(dAgency::with('dAgency_10','DemographicReport')->find(1)->toArray()),"</pre>";

    return View::make('test')
        ->with('agency', $agency);
}

我可以綁定除DemDataSet模型中的數據以外的所有內容，我什至不知道如何在它與dAgency模型之間建立關系。 因此，基本上，我只希望DemDataSet模型中的字段對我的視圖可用，那么顯然我希望最終能夠執行所有CRUD操作。

Answer 1

查看模型，您應該只能通過DemographicReport訪問它。

即

$dataset = $agency->DemographicReport->DemDataSet;