PHP / Laravel的新手,请耐心等待。
我有一个正在根据3条狗,品种,性别和半径的标准进行搜索的网页。
这是相关的代码:
搜索页面
<div class="col-md-12 zero-pad-left zero-pad-right">
{{ Form::open(array('action' => array('DogsController@index'), 'class'=>'form width88', 'role'=>'search', 'method' => 'GET')) }}
<div id="prefetch">
{{ Form::text('search-breed', null, array('class' => 'typeahead form-group form-control', 'placeholder' => 'Search by breed here...')) }}
{{ Form::text('sex', null, array('class' => 'form-group form-control', 'placeholder' => 'Search by sex here...')) }}
{{ Form::text('miles', null, array('class' => 'form-group form-control', 'placeholder' => 'Search by distance here...')) }}
</div>
{{ Form::submit('Search', array('class' => 'btn btn-default search-bar-btn')) }}
{{ Form::close() }}
控制器页面
class DogsController extends \BaseController {
public function __construct()
{
// call base controller constructor
parent::__construct();
// run auth filter before all methods on this controller except index and show
$this->beforeFilter('auth', array('except' => array('show')));
}
/**
* Display a listing of the resource.
*
* @return Response
*/
public function index()
{
if (Input::has('search')) {
$queryString = Input::get('search');
$dogs = Dog::where('name', 'LIKE', "%$queryString%")->orderBy('name')->paginate(5);
}
elseif (Input::has('search-breed'))
{
$dogs = Dog::whereHas('breed', function($q)
{
$queryString = Input::get('search-breed');
$q->where('name', 'LIKE', "%$queryString%");
})->orderBy('name')->paginate(5);
} //end elseif
else {
$dogs = Dog::orderBy('name')->paginate(5);
} //end else
return View::make('dogs.index')->with(array('dogs' => $dogs));
} //end function index()
当我在20英里内输入对狮子狗的搜索时,URL显示如下:
http://ruff-love.dev/dogs?search-breed=poodle&sex=M&miles=20
当仅搜索品种时,搜索当前可以正常进行。
我似乎无法弄清楚添加SEX和RADIUS标准的语法。它应允许这些条件为null并仍然执行查询。
任何建议将不胜感激
您可以使用查询范围http://laravel.com/docs/eloquent#query-scopes使它在控制器中(或将来要执行的任何操作)变得冗长而轻松,然后根据需要将它们链接起来:
// Dog model
public function scopeSearchBreed($query, $breed)
{
$query->whereHas('breed', function ($q) use ($breed) {
$q->where('name', 'like', "%{$breed}%");
});
}
public function scopeWithinRadius($query, $radius)
{
$query->where(...); // do math here
}
然后,您所需要做的就是:
public function index()
{
$q = Dog::query();
if (Input::has('search'))
{
// simple where here or another scope, whatever you like
$q->where('name','like',Input::get('search'));
}
if (Input::has('search-breed'))
{
$q->searchBreed(Input::get('search-breed'));
}
if (Input::has('sex'))
{
$q->where('sex', Input::get('sex'));
}
if (Input::has('radius'))
{
$q->withinRadius(Input::get('radius'));
}
$dogs = $q->orderBy(..)->paginate(5);
// ...
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