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                1 我們要制作如圖所示的網站配置列表 ![mark](http://on64ewxzt.bkt.clouddn.com/blog/20170731/114104258.png) 如果像以前一樣,直接從數據庫中所有數據,前臺遍歷數據的方式,無法生成內容字段對應的文本框,因此,網站配置控制器的index()方法修改如下: ``` public function index() { $data = Config::orderBy('conf_order','asc')->get(); foreach($data as $k=>$v){ switch($data[$k]->field_type){ case "input": $data[$k]['_content'] = '<input type="text" style="width:200px;text-align:left;" name="conf_content[]" value="'.$data[$k]->conf_content.'">'; break; case "textarea": $data[$k]['_content'] = ' <textarea name="conf_content[]">'.$data[$k]->conf_content.'</textarea>'; break; case "radio": //// 1|開啟,0|關閉 // <input type="radio" name="conf_content" value='1'>開啟 // <input type="radio" name="conf_content" value='0'>關閉 $arr = explode(',',$data[$k]->field_value); $str = ''; foreach($arr as $n=>$m){ $r = explode('|',$m); //判斷哪一個單選按鈕被選中 $c = ($data[$k]->conf_content == $r[0]) ? 'checked' : ''; //此處的名字一定要[],因為用戶可能修改多條配置信息 $str.= ' <input type="radio" name="conf_content[]" '.$c.' value="'.$r[0].'">'.$r[1]; } $data[$k]['_content'] = $str; break; } } return view('admin.config.index',compact('data')); } ``` 前臺的配置列表頁也需要修改,將列表數據嵌套在一個form表單中,此處需要注意,增加一個隱藏域,表示當前配置項的ID,名字一定要以數組形式命名,加`[ ]` ` <input type="hidden" name="conf_id[]" value="{{$v->conf_id}}">` ``` <form action="{{url('admin/config/changecontent')}}" method="post"> <div class="result_wrap"> <div class="result_content"> {{csrf_field()}} <table class="list_tab"> <tr> <th class="tc">排序</th> <th class="tc">ID</th> <th>標題</th> <th>名稱</th> <th>內容</th> <th>操作</th> </tr> @foreach($data as $v) <tr> <td class="tc"> <input type="text" value="{{$v->conf_order}}" onchange="changeOrder(this,{{$v->conf_id}})"> </td> <td class="tc">{{$v->conf_id}}</td> <td> <a href="#">{{$v->conf_title}}</a> </td> <td >{{$v->conf_name}}</td> <td style="width:100px;"> <input type="hidden" name="conf_id[]" value="{{$v->conf_id}}"> {!! $v->_content !!} </td> <td> {{--admin/user/1/edit--}} <a href="{{url('admin/config/'.$v->conf_id.'/edit')}}">修改</a> <a href="javascript:;" onclick="delUser({{$v->conf_id}})">刪除</a> </td> </tr> @endforeach </table> <tr> <th></th> <td> <input type="submit" value="提交"> <input type="button" class="back" onclick="history.go(-1)" value="返回"> </td> </tr> </div> </div> </form> ``` 后臺應對的修改方法changeContent ``` public function changeContent() { $input = Input::except('_token'); foreach($input['conf_id'] as $k=>$v){ // 獲取此條要被替換成的內容 Config::where('conf_id',$v)->update(['conf_content'=>$input['conf_content'][$k]]); } $this->putFile(); return redirect('admin/config'); } ```
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