[英]getPaginationCount() function not working in Laravel's Eloquent ORM
我將退出Eloquent模塊以單獨使用它,但是我可以訪問QueryBuilder函數。 除了那一個,他們都在工作。
當我運行count()和getPaginationCount()時,count()返回正確的值,但是getPaginationCount()僅返回Illuminate \\ Database \\ Eloquent \\ Builder對象,就好像我沒有命令查詢要運行一樣。 但是,我可以在查詢日志中看到2個查詢,而且奇怪的是,它們都運行相同的查詢。
require 'vendor/autoload.php';
use Illuminate\Database\Capsule\Manager as Capsule;
$capsule = new Capsule;
$capsule->addConnection(array(
'driver' => 'mysql',
'host' => TECHDB_HOST,
'database' => TECHDB_DBNAME,
'username' => TECHDB_USER,
'password' => TECHDB_PASS,
'charset' => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix' => ''
));
$capsule->bootEloquent();
class Indicator extends Illuminate\Database\Eloquent\Model {
public $timestamps = false;
public $table = "indicator_performance";
}
$query = Indicator::where('symbol', '=', 'IBM')->forPage(1,2);
var_dump($query->count()); //Correctly prints '13'
var_dump($query->getPaginationCount()); //dumps the 'Illuminate\Database\Eloquent\Builder' object
這是查詢日志:
array (size=2)
0 =>
array (size=3)
'query' => string 'select count(*) as aggregate from `indicator_performance` where `symbol` = ? limit 2 offset 0' (length=93)
'bindings' =>
array (size=1)
0 => string 'IBM' (length=3)
'time' => float 4.85
1 =>
array (size=3)
'query' => string 'select count(*) as aggregate from `indicator_performance` where `symbol` = ? limit 2 offset 0' (length=93)
'bindings' =>
array (size=1)
0 => string 'IBM' (length=3)
'time' => float 4.24
編輯:
似乎在forPage()
調用之后使用count()
函數暴露了一個更一般的錯誤。 看一下這些結果:
$query = Indicator::where('symbol', '=', 'IBM');
var_dump($query->count()); //Correctly returns '13'
var_dump($query->forPage(0, 5)->count()); //Correctly returns '13'
var_dump($query->forPage(1, 5)->count()); //Correctly returns '13'
var_dump($query->forPage(2, 5)->count()); //Returns null. Should return '13' or '3', depending on implementation.
您的代碼(和Laravel)有兩個問題:
getPaginationCount()
Builder上調用的getPaginationCount()
運行方法(在Query Builder類上),但不返回其結果。 相反,它將自身返回為$this
。
getPaginationCount()
不會重置查詢的limit
和offset
以獲得計數,我想這是一個錯誤。 每當將offset設置為大於1的任何null
時,這都會導致返回forPage($page)
將對$page > 1
。
話雖如此,我建議您要么使用count()
而不是getPaginationCount()
要么:
// first get the count
$count = $query->getQuery() // get the base Query Builder directly
->getPaginationCount(); // in order to return the count
// then use forPage
$query->forPage(1,5);
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