Laravel eloquent 加入三个 table
Laravel eloquent join three table
我是 Laravel 的新手。现在我需要一些关于加入 table eloquent.
的帮助
这是我的 table 结构,
产品Table
product_id product_code product_name
1 1434 ABC
产品历史Table
history_id product_id cost invoice_number
1 1 100 ABC-01
产品导览Table
tour_id product_id provider_name
1 1 TEST
现在我加入这 3 个 table,
$product = product::join('product_history as ph', 'product.product_id', '=', 'ph.product_id', 'inner')
->join('product_tour as pt', 'product.product_id', '=', 'pt.product_id', 'inner')
->where('product.product_id', '1')
->get()
->toArray();
它工作正常。但我认为Laravel也提供了Eloquent关系。比如,hasOne
、hasMany
、belongsTo
、belongsToMany
等....
Any idea which method is use for my structure ?
提前致谢。
像这样更改您的查询:
$product = product::Select("*")
//->with('product_history','product_tour')
//Use this with() for condition.
->with([
'ProductHistory' => function ($query){
$query->select('*');
},
'ProductTour' => function ($query) use ($ProviderName) {
$query->select('*')->where("provider_name", "=", $ProviderName);
},
])
->where('product.product_id', '1')
->get()
->toArray();
这是模型文件的代码:
namespace App;
use DB;
use Illuminate\Database\Eloquent\Model;
class Product extends Model
{
public function producthistory()
{
return $this->hasMany('App\ProductHistory', 'product_id','history_id');
}
public function producttour()
{
return $this->hasMany('App\ProductTour', 'product_id','tour_id');
}
}
以及名为 Product_history
和 product_tour
的其他表的模型文件
namespace App;
use Illuminate\Database\Eloquent\Model;
class ProductHistory extends Model
{
public function products()
{
return $this->belongsTo('App\Product', 'history_id','product_id');
}
}
和
namespace App;
use Illuminate\Database\Eloquent\Model;
class ProductTour extends Model
{
public function products()
{
return $this->belongsTo('App\Product', 'tour_id','product_id');
}
}
我是 Laravel 的新手。现在我需要一些关于加入 table eloquent.
的帮助这是我的 table 结构,
产品Table
product_id product_code product_name
1 1434 ABC
产品历史Table
history_id product_id cost invoice_number
1 1 100 ABC-01
产品导览Table
tour_id product_id provider_name
1 1 TEST
现在我加入这 3 个 table,
$product = product::join('product_history as ph', 'product.product_id', '=', 'ph.product_id', 'inner')
->join('product_tour as pt', 'product.product_id', '=', 'pt.product_id', 'inner')
->where('product.product_id', '1')
->get()
->toArray();
它工作正常。但我认为Laravel也提供了Eloquent关系。比如,hasOne
、hasMany
、belongsTo
、belongsToMany
等....
Any idea which method is use for my structure ?
提前致谢。
像这样更改您的查询:
$product = product::Select("*")
//->with('product_history','product_tour')
//Use this with() for condition.
->with([
'ProductHistory' => function ($query){
$query->select('*');
},
'ProductTour' => function ($query) use ($ProviderName) {
$query->select('*')->where("provider_name", "=", $ProviderName);
},
])
->where('product.product_id', '1')
->get()
->toArray();
这是模型文件的代码:
namespace App;
use DB;
use Illuminate\Database\Eloquent\Model;
class Product extends Model
{
public function producthistory()
{
return $this->hasMany('App\ProductHistory', 'product_id','history_id');
}
public function producttour()
{
return $this->hasMany('App\ProductTour', 'product_id','tour_id');
}
}
以及名为 Product_history
和 product_tour
namespace App;
use Illuminate\Database\Eloquent\Model;
class ProductHistory extends Model
{
public function products()
{
return $this->belongsTo('App\Product', 'history_id','product_id');
}
}
和
namespace App;
use Illuminate\Database\Eloquent\Model;
class ProductTour extends Model
{
public function products()
{
return $this->belongsTo('App\Product', 'tour_id','product_id');
}
}