Question

当我想在我的分页中添加 where 子句时，我遇到了问题：

这很好用：

  $builder = User::orderBy(
        $criteria->getOrderBy(),
        $criteria->getOrderWay()
    )
    ->paginate(
        $criteria->getPerPage(),
        array('*'),
        '',
        $criteria->getPage()
    );
    return $builder;

如果我想添加以下条件，如果我执行以下操作（它适用于btw）：

$builder = User::orderBy(
    $criteria->getOrderBy(),
    $criteria->getOrderWay()
)->where(array(array('state','=',0)))
->paginate(
    $criteria->getPerPage(),
    array('*'),
    '',
    $criteria->getPage()
);
return $builder;

但如果我想在没有链接的情况下这样做：

 $builder = User::orderBy(
        $criteria->getOrderBy(),
        $criteria->getOrderWay()
    );
 $builder->where(array(array('state','=',0)));
    $builder->paginate(
        $criteria->getPerPage(),
        array('*'),
        '',
        $criteria->getPage()
    );
    return $builder;

我得到以下异常：

调用未定义的方法Illuminate \ Database \ Query \ Builder :: lastPage（）

所以分页不适用，但为什么呢？

如何在不重复代码的情况下添加where子句？

$arrClauses = /** example **/;

if(empty($arrClauses)) {
      $builder = User::orderBy(
            $criteria->getOrderBy(),
            $criteria->getOrderWay()
        )
        ->paginate(
            $criteria->getPerPage(),
            array('*'),
            '',
            $criteria->getPage()
        );
        return $builder;
} else {
    $builder = User::orderBy(
        $criteria->getOrderBy(),
        $criteria->getOrderWay()
    )->where($arrClauses)
    ->paginate(
        $criteria->getPerPage(),
        array('*'),
        '',
        $criteria->getPage()
    );
    return $builder;
}

Answer 1

您收到错误是因为您正在返回Query Builder实例而不是LengthAwarePaginator实例。这样做是为了让它发挥作用：

$builder = User::orderBy(
    $criteria->getOrderBy(),
    $criteria->getOrderWay()
);
$builder = $builder->where(array(array('state','=',0)));
$builder = $builder->paginate(
    $criteria->getPerPage(),
    array('*'),
    '',
    $criteria->getPage()
);
return $builder;

Answer 2

你的问题是你没有连接查询，这应该有效：

$arrClauses = /** Your clauses **/;

$builder = User::orderBy(
   $criteria->getOrderBy(),
   $criteria->getOrderWay()
);
if(!empty($arrClauses)) {
   $builder = $builder->where($arrClauses);
}
$builder = $builder->paginate(
   $criteria->getPerPage(),
   array('*'),
  '',
  $criteria->getPage()
);
return $builder;

Answer 3

希望这会对你有所帮助

$builder = User::orderBy(
                $criteria->getOrderBy(),
                $criteria->getOrderWay()
            );
    if(!empty($arrClauses))
    $builder = $builder->where($arrClauses);
              $builder->paginate(
                $criteria->getPerPage(),
                array('*'),
                '',
                $criteria->getPage()
            );
            return $builder;

分页和where子句

3 个答案: