我有搜索表单，可以通过某些条件（城市，价格，正交，属性类型等）列出属性/广告。当我尝试在表单中放置一些值以获取数据库中对应的那些项时遇到麻烦，我得到的空表没有结果。我有三张桌子。
properties (id, city, price, quadrature, property_type)
categories (id, category, priority)
category_property (id, property_id, category_id)
这种关系是多对多的，并且有效，我检查了一下。并且此类别表具有默认值。在类别行中，它具有要价，需求，购买，租金，房屋，公寓，其中要约和需求的优先级为0，购买和租金的优先级为1，房屋和公寓的优先级为2。像这样
project/search/offer/buy/house/Madrid/min_price=10000-max_price=15000/min_quadrature=20-max_quadrature=30
要约，购买，房屋是类别行中的那些值。我被困在那里如何解决这个问题，所以我可以显示适当的结果。任何帮助是极大的赞赏。这是我的代码：
search.blade.php
<div class="row justify-content-md-center">
<div class="col-md-8 order-md-1">
<div>
@if(isset($results))
<table class="table">
<thead>
<th>City</th>
<th>Price</th>
<th>Quadrature</th>
</thead>
<tbody>
@foreach ($results as $result)
<tr>
<th>{{ $result->city }}</th>
<td>{{ $result->price }}</td>
<td>{{ $result->quadrature }}</td>
</tr>
@endforeach
@else
@php
{{echo "not set";}}
@endphp
</tbody>
</table>
@endif
</div>
<form id="searchForm" method="GET" action="/search">
<div class="row">
<div class="col-md-5 mb-3">
<label>City</label>
<input name="city" list="result" id="input" class="form-control">
<datalist id="result"></datalist>
</div>
</div>
<div class="row">
<div class="col-md-6 mb-6">
<label>Price</label>
<input type="number" name="min_price" class="form-control" placeholder="Min Price">
<input type="number" name="max_price" class="form-control" placeholder="Max Price">
</div>
<div class="col-md-6 mb-6">
<label>Quadrature</label>
<input type="number" name="min_quadrature" class="form-control" placeholder="Min quadrature">
<input type="number" name="max_quadrature" class="form-control" placeholder="Max quadrature">
</div>
</div>
<hr class="mb-4">
<div class="row">
<div class="col-md-4 mb-6">
<h5>Payment</h4>
<div class="d-block my-3">
<div class="custom-control custom-radio">
<input id="offer" name="propertyBidAsk" value="offer" type="radio" class="custom-control-input">
<label class="custom-control-label" for="offer">Offer</label>
</div>
<div class="custom-control custom-radio">
<input id="demand" name="propertyBidAsk" value="demand" type="radio" class="custom-control-input">
<label class="custom-control-label" for="demand">Demand</label>
</div>
</div>
</div>
<div class="col-md-3 mb-6">
<h5>Property payment</h4>
<div class="d-block my-3">
<div class="custom-control custom-radio">
<input id="buy" name="propertyPayment" value="buy" type="radio" class="custom-control-input">
<label class="custom-control-label" for="buy">Buy</label>
</div>
<div class="custom-control custom-radio">
<input id="rent" name="propertyPayment" value="rent" type="radio" class="custom-control-input">
<label class="custom-control-label" for="rent">rent</label>
</div>
</div>
</div>
<div class="col-md-5 mb-6">
<h5>Property type</h4>
<div class="d-block my-3 ">
<div class="custom-control custom-radio">
<input id="house" name="propertyType" value="house" type="radio" class="custom-control-input">
<label class="custom-control-label" for="house">House</label>
</div>
<div class="custom-control custom-radio">
<input id="flat" name="propertyType" value="flat" type="radio" class="custom-control-input">
<label class="custom-control-label" for="flat">Flat</label>
</div>
<hr class="mb-4">
<button class="btn btn-primary btn-lg btn-block">Search</button>
</form>
<script>
var onSubmitFunc = function(e){
e.preventDefault();
e.stopPropagation();
if( e.stopImmediatePropagation ){
e.stopImmediatePropagation();
}
var propertyBidAsk = this["propertyBidAsk"].value.trim();
var propertyPayment = this["propertyPayment"].value.trim();
var propertyType = this["propertyType"].value.trim();
var city = this['city'].value.trim();
var min_price = this["min_price"].value.trim();
var max_price = this["max_price"].value.trim();
var price = min_price + "_" + max_price;
var min_quadrature = this["min_quadrature"].value.trim();
var max_quadrature = this["max_quadrature"].value.trim();
var quadrature = min_quadrature + "_" + max_quadrature;
url = propertyBidAsk.length === 0 ? '' : ( '/' + encodeURIComponent(propertyBidAsk) );
url += propertyPayment.length === 0 ? '' : ( '/' + encodeURIComponent(propertyPayment) );
url += propertyType.length === 0 ? '' : ( '/' + encodeURIComponent(propertyType) );
url += city.length === 0 ? '' : ( '/' + encodeURIComponent(city) );
url += min_price.length === 0 ? '' : ( '/min_price' + "=" + encodeURIComponent(min_price) );
url += max_price.length === 0 ? '' : ( '-max_price' + "=" + encodeURIComponent(max_price) );
url += min_quadrature.length === 0 ? '' : ( '/min_quadrature' + "=" + encodeURIComponent(min_quadrature) );
url += max_quadrature.length === 0 ? '' : ( '-max_quadrature' + "=" + encodeURIComponent(max_quadrature) );
window.location.href = this.action + url;
}
document.addEventListener( 'DOMContentLoaded', function(){
var srch = document.getElementById("searchForm");
srch.addEventListener('submit', onSubmitFunc, false);
}, false );
</script>
</div>
</div>
CategoryController.php
<?php
namespace App\Http\Controllers;
use App\Http\Controllers\Controller;
use App\Property;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Redirect;
class CategoryController extends Controller
{
public function index()
{
$data = \DB::table('properties');
return view('categories.search', compact('data'));
}
public function search($propertyBidAsk, $propertyType, $propertyPayment, $city, $price, $quadrature, Request $request, Property $property)
{
$category = $property->category;
$results = null;
if (!empty($request->city)) {
$results = Property::all()->where('city', 'LIKE', "%" . $request->city . "%");
}
if (!empty($request->min_price) && !empty($request->max_price )) {
$results = Property::all()->where('price', '>=', $request->min_price)->where('price', '<=', $request->max_price);
}
if (!empty($request->min_quadrature) && !empty($request->max_quadrature )) {
$results = Property::all()->where('quadrature', '>=', $request->min_quadrature)->where('price', '<=', $request->max_quadrature);
}
return view('categories.search', compact('category', 'results'));
}
}
web.php
<?php
//search
Route::get('/search', 'CategoryController@index');
Route::get('/search/{propertyBidAsk}/{propertyPayment}/{propertyType}/
{city}/{price}/{quadrature}', 'CategoryController@search');
答案 0 :(得分：1)
请用以下代码替换search中的CategoryController操作：
public function search($propertyBidAsk, $propertyType, $propertyPayment, $city, $price, $quadrature, Request $request, Property $property)
{
$category = $property->category;
$property_obj = Property::query();
if (!empty($request->city)) {
$property_obj->where('city', 'LIKE', "%" . $request->city . "%");
}
if (!empty($request->min_price) && !empty($request->max_price)) {
$property_obj->where('price', '>=', $request->min_price)->where('price', '<=', $request->max_price);
}
if (!empty($request->min_quadrature) && !empty($request->max_quadrature)) {
$property_obj->where('quadrature', '>=', $request->min_quadrature)->where('price', '<=', $request->max_quadrature);
}
$results = $property_obj->get();
return view('categories.search', compact('category', 'results'));
}