[英]Laravel where() and orderBy() on a relation table that's on an external server
我需要使用Laravel where()和orderBy()方法。 的問題是,我需要過濾器和訂單數據來自一個關系,即是外部服務器 /另一主機數據庫(PostgreSQL的)上。
我試過的
public function index(Request $request)
{
$productforms = $this->productform
->select('product_forms.*')
->with('product')
->join('types', 'product_forms.type_id', '=', 'types.id')
->where('product.description', 'ILIKE', '%sugar%');
// ...
}
也嘗試過:
$rawquery = DB::table('product_forms')
->join('testing.base.products as db2','product_forms.product_id','=','db2.id')
->select(DB::raw('form_title as title'))
->first();
我搜索了很多主題,但沒有發現完全相似的主題。
以上第二次嘗試的Laravel錯誤消息:
"""
SQLSTATE[0A000]: Feature not supported: 7 ERROR: cross-database references are not implemented: "testing.base.product"
LINE 1: ...m_title as titulo from "product_forms" inner join "test...
^ (SQL: select form_title as titulo from "product_forms" inner join "testing"."base"."product ▶
"""
以上第一次嘗試的Laravel錯誤消息:
"""
SQLSTATE[42P01]: Undefined table: 7 ERROR: missing FROM-clause entry for table "products"
LINE 1: ...on "product_forms"."type_id" = "types"."id" where "products"...
^ (SQL: select "product_forms".* from "product_forms" inner join "types" on "product_forms"."type_id" = "types"."id" where "products"."description"::text ILIKE %sugar%) ◀
"""
本地服務器型號productForm:
class ProductForm extends Model implements Auditable
{
protected $table='product_forms';
protected $connection = 'localserver';
protected $fillable = [
'id',
'product_id',
'type_id'
// ...
];
public function product(){
return $this->belongsTo(Product::class);
}
}
外部服務器型號產品:
class Product extends Model
{
protected $connection='externalserver';
protected $table='base.products';
protected $fillable = [
'id',
'description',
'attributes'
// ...
];
// ...
}
樣本環境結構:
DB_CONNECTION=localserver
DB_HOST_PG=127.0.0.1
DB_PORT_PG=5432
DB_CONNECTIONK=externalserver
DB_HOST_PGK=externaldomain.com
DB_PORT_PGK=5432
Conf / database.php連接:
'connections' => [
'localserver' => [
'read' => [
'host' => env('DB_HOST_PG', '127.0.0.1'),
],
'write' => [
'host' => env('DB_HOST_PG_WRITE', '127.0.0.1'),
],
'driver' => 'pgsql',
'port' => env('DB_PORT_PG', '5432'),
// ...
],
'externalserver' => [
'driver' => 'pgsql',
'host' => env('DB_HOST_PGK', 'externaldomain.com'),
'port' => env('DB_PORT_PGK', '5432'),
// ...
]
]
謝謝! 任何提示都會幫助我
我認為這不是更好的解決方案,但是暫時我找到了解決方法。 我的目標是使用where()對列表進行搜索過濾。 我所做的解決方法是:
在模型上,使用條件局部范圍:
public function scopeSearchField($query, $search) {
// retrieving the external cross-database data using where() on a closure inside eager loading/with() method
if (!empty($search['product']) ) {
$query->with(
[
'product' =>
function ($query) use($search){
$query->whereRaw(" public.unaccent('description')::text ILIKE public.unaccent('%{$search["product"]}%')::text");
}
]);
}
}
在控制器上:
$productforms = $this->productform
->select('product_forms.*')
->searchField($request->all());
在視圖上:
@forelse($productforms as $productform)
@if($productform->product!= null)
<tr>
<td>$productforms->title</td>
<td>$productforms->product->description</td>
<td>$productforms->...</td>
<td>$productforms->...</td>
</tr>
@endif
@endforelse
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