如何在Laravel中的get()之后对集合进行分页?
我对两个查询结果进行了合并,效果很好:如何在Laravel中的get()之后对集合进行分页?,laravel,pagination,Laravel,Pagination,我对两个查询结果进行了合并,效果很好: $events1 = \App\Event::Where('valid_to','>=',$today)->orderByRaw('valid_to','ASC')->get(); $events2 = \App\Event::Where('valid_to','<',$today)>orderByRaw('valid_to','ASC')->get(); $events = $events1->merge($ev
$events1 = \App\Event::Where('valid_to','>=',$today)->orderByRaw('valid_to','ASC')->get();
$events2 = \App\Event::Where('valid_to','<',$today)>orderByRaw('valid_to','ASC')->get();
$events = $events1->merge($events2);
编辑:对于未来的读者来说,patricus的答案非常有效,我做到了。您在错误的对象上调用了links()
和render()
。您已将分页器分配给$pagination
变量。你应该打电话来
$pagination->links()
或
另外,如果您想稍微清理一下,可以修改查询,使您只有一个查询,而不需要组合两个不同的结果集。您只需首先对日期比较结果进行排序,然后在valid\u to
字段中进行排序
$events = \App\Event::orderByRaw('valid_to < ?', [$today])->orderBy('valid_to')->get();
现在,分页的是您的
$events
对象,因此您希望使用$events->links()
和$events->render()
分页集合的最佳方式:
1-将其添加到\app\Providers\AppServiceProvider中的引导函数
/**
* Paginate a standard Laravel Collection.
*
* @param int $perPage
* @param int $total
* @param int $page
* @param string $pageName
* @return array
*/
Collection::macro('paginate', function($perPage, $total = null, $page = null, $pageName = 'page') {
$page = $page ?: LengthAwarePaginator::resolveCurrentPage($pageName);
return new LengthAwarePaginator(
$this->forPage($page, $perPage),
$total ?: $this->count(),
$perPage,
$page,
[
'path' => LengthAwarePaginator::resolveCurrentPath(),
'pageName' => $pageName,
]
);
});
2-从下文开始,对于所有集合,您可以这样分页
$events1 = \App\Event::Where('valid_to','>=',$today)->orderByRaw('valid_to','ASC')->get();
$events2 = \App\Event::Where('valid_to','<',$today)>orderByRaw('valid_to','ASC')->get();
$events = $events1->merge($events2);
$events->paginate(5)
$events1=\App\Event::Where('valid_to','>=',$today)->orderByRaw('valid_to','ASC')->get();
$events2=\App\Event::Where('valid_to','感谢您的回复。我这样做了,只要$page=1它就可以工作,但当我将$page=2放入调试时,出现了一些错误,我得到了“正在尝试获取非对象的属性(视图:…”,此时我正在尝试查找导致问题的非对象。
$events = \App\Event::orderByRaw('valid_to < ?', [$today])->orderBy('valid_to')->paginate(60);
/**
* Paginate a standard Laravel Collection.
*
* @param int $perPage
* @param int $total
* @param int $page
* @param string $pageName
* @return array
*/
Collection::macro('paginate', function($perPage, $total = null, $page = null, $pageName = 'page') {
$page = $page ?: LengthAwarePaginator::resolveCurrentPage($pageName);
return new LengthAwarePaginator(
$this->forPage($page, $perPage),
$total ?: $this->count(),
$perPage,
$page,
[
'path' => LengthAwarePaginator::resolveCurrentPath(),
'pageName' => $pageName,
]
);
});
$events1 = \App\Event::Where('valid_to','>=',$today)->orderByRaw('valid_to','ASC')->get();
$events2 = \App\Event::Where('valid_to','<',$today)>orderByRaw('valid_to','ASC')->get();
$events = $events1->merge($events2);
$events->paginate(5)