Question

我有一个laravel 4项目，我需要使用高级搜索创建一个模块，这是我无法绕过头脑的事情。

这是我的表格：

<div class="form-group">
                        {{ Form::open(['route' => 'requests.search']) }}
                        {{ Form::label('status', 'Status:') }}
                        {{ Form::select('status', $statuses, null, ['class' => 'form-control']) }}
                    </div>
                    <!-- Category Form Input -->
                    <div class="form-group">
                        {{ Form::label('category', 'Category:') }}
                        {{ Form::select('category', $categories, null, ['class' => 'form-control']) }}
                    </div>
                    <!-- Teamleader Form Input -->
                    <div class="form-group">
                        {{ Form::label('teamleader', 'Team Leader:') }}
                        {{ Form::select('teamleader', $projectmembers, null, ['class' => 'form-control']) }}
                    </div>
                    <!-- Requestid Form Input -->
                    <div class="form-group">
                        {{ Form::label('requestid', 'Request ID:') }}<br/>
                        <span>Between:</span>
                        {{ Form::text('requestidstart', null, ['class' => 'form-control', 'style' => 'width:100%;']) }}
                        <span>And:</span>
                        {{ Form::text('requestidend', null, ['class' => 'form-control', 'style' => 'width:100%;'])}}
                    </div>
                    <!-- Requestdate Form Input -->
                    <div class="form-group">
                        {{ Form::label('requestdate', 'Request Date:') }}<br/>
                        <span>From:</span>
                        {{ Form::text('requestdatestart', null, ['class' => 'form-control etadatepicker', 'style' => 'width:100%;']) }}
                        <span>To:</span>
                        {{ Form::text('requestdateend', null, ['class' => 'form-control etadatepicker', 'style' => 'width:100%;'])}}
                    </div>
                    <!-- Requestduedate Form Input -->
                    <div class="form-group">
                        {{ Form::label('requestduedate', 'Due Date:') }}<br/>
                        <span>From:</span>
                        {{ Form::text('requestduedatestart', null, ['class' => 'form-control etadatepicker', 'style' => 'width:100%;']) }}
                        <span>To:</span>
                        {{ Form::text('requestduedateend', null, ['class' => 'form-control etadatepicker', 'style' => 'width:100%;'])}}
                    </div>
                    {{ Form::hidden('search', 'advanced') }}
                    {{ Form::submit('Search') }}
                    {{ Form::close() }}<br/>

在我的控制器中，我有以下开关确定用户是在进行简单的文本搜索还是高级搜索：

switch($search)
        {
            case 'text':
                $requests = DataRequest::search($query, ["id", "userid", "subject", "details", "eta", "leader", "member1", "member2", "member3", "member4", "member5", "member6", "status", "time_spent", "date_completed", "category", "comments", "response_method", "created_at", "updated_at"])
                    ->paginate(10);
                return View::make('requests.index', ['requests' => $requests, 'statuses' => $statuses, 'requestresponsetype' => $requestresponsetype, 'projectmembers' => $projectmembers, 'categories' => $categories, 'query' => $query]);
               break;
            case 'advanced':

                break;
            default:
                $requests = DataRequest::orderBy('id', 'DESC')->paginate(10);
                return View::make('requests.index', ['requests' => $requests, 'statuses' => $statuses, 'requestresponsetype' => $requestresponsetype, 'projectmembers' => $projectmembers, 'categories' => $categories, 'query' => $query]);
                break;
        }

显然，正如我针对文本案例所做的那样，我知道如何使用输入来查询数据库以进行简单的文本搜索。

我将如何处理每个字段，利用他们的所有查询，并返回满足“高级”字段中所有查询的结果。情况？

另外，我知道我可以这样做：

                 $requests = DataRequest::where('category', '=', $advancedCategories)
                     ->orWhere('status', '=', $advancedStatus)
                     ->orWhere(...)
                     ->orWhere(...)
                     ->orWhere(...)
                     ->orWhere(...)
                     ->orWhere(...)
                     ->paginate(10);

但是如果其中一个字段为空，则会出错：1054未知列＆＃39;＆＃39;在＆＃39; where子句＆＃39;

Answer 1

从输入传递空值的orWhere条件不会抛出任何MySQL错误，条件只是OR WHERE column = ""。但是，这并不是您可能想要的条件，因为它将在结果集中包含该列为空的所有条目。

以下是我如何处理它以保持清洁并只添加所需的条件：

// Define an array with the names of the input parameters for advanced search
$searchParams = ['category', 'teamleader', 'requestidstart', 'requestidend', 'requestdatestart', 'requestdateend', 'requestduedatestart', 'requestduedateend'];

// Create a blank query for your model on which you can add conditions
$query = DataRequest::query();

// Add only the params that have been passed values from the form as conditions
foreach ($searchParams as $param) {
    if (Input::has($param)) {
        $query->orWhere($param, Input::get($param));
    }
}

// Get your paginated results
$requests = $query->paginate(10);

您将如何处理控制器中的多字段高级搜索？

1 个答案: