代码更新地址

company 物业表 主表，
propertyMain 小区表 从表

一个物业对应多个小区，一个小区对应一个物业

应用场景，小区增删改的列表，需要显示小区对应的 物业信息

用 with 取不出来！！！！

namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class PropertyMain extends Model {
    protected $table      = 'property_main';
    public    $primaryKey = 'mId';
    protected $fillable   = [
        'mId',
        'phone',
        'companyId',
    ];

    public function company() {
        //参数1目标模型 参数2当前模型与company表关联的外键ID 参数3companny主键ID
        return $this->belongsTo('App\Models\Company','companyId','mId');
    }
}

namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class Company extends Model {
    protected $table      = 'company';
    public    $primaryKey = 'mId';
    protected $fillable   = [
        'mId',
        'name',
        'phone',
        'introduce'
    ];
    
    public function propertyMain() {
        return $this->hasMany('App\Models\Property','mId','mId');
    }
}

$propertyMains = PropertyMain::with('company')->get();
foreach ($propertyMains as $b){
    dd($b->company); // 返回空
}

$propertyMains = PropertyMain::where([])->orderBy('created_at', 'asc')->paginate(12);
foreach ($propertyMains as $b){
    dd($b->company); // 可以取到数据
}