综合实战第八课：后台系统开发1-PHP培训九期线上班

后台菜单处理

加载一级菜单

public function index(){
        //加载菜单
        $menus = DB::table('xpcms_admin_menu')->where('pid',0)->where('status',0)->where('ishidden',0)->orderBy('ord','asc')->get()->all();
        $data['menus'] = $menus;
        return view('admins.home.index',$data);
    }

渲染

<ul class="tree phpcn-clear" id="phpcn_nav_side">
                @foreach ($menus as $menu)
                <li>
                    <h2>
                        <span class="phpcn-icon" {{$menu->icon}}></span><label>{{$menu->title}}</label><i class="phpcn-r phpcn-icon phpcn-icon-down "></i>
                    </h2>
                    <template v-if="item.children!=undefined && item.children.length !== 0">
                        <dl>
                            <a href="javascript:;" v-for="ch in item.children" v-bind:data="ch.url" onclick="menu_fire(this)" v-bind:controller="ch.controller" v-bind:action="ch.action" v-text="ch.title"></a>
                        </dl>
                    </template>
                </li>
                @endforeach
            </ul>

转换成数组返回view

public function index(){
        //加载菜单
        $menus = DB::table('xpcms_admin_menu')->where('pid',0)->where('status',0)->where('ishidden',0)->orderBy('ord','asc')->get()->all();
        foreach ($menus as $key => $val) {
            $menus[$key] = (array)$val;
        }
        $data['menus'] = $menus;
        return view('admins.home.index',$data);
    }

渲染

<h2>
<span class="phpcn-icon" {{$menu['icon']}}></span><label>{{$menu['title']}}</label><i class="phpcn-r phpcn-icon phpcn-icon-down "></i>
</h2>

加载二级菜单

public function index(){
        //加载菜单
        $menus = DB::table('xpcms_admin_menu')->where('pid',0)->where('status',0)->where('ishidden',0)->orderBy('ord','asc')->get()->all();
        foreach ($menus as $key => $val) {
            $menus[$key] = (array)$val;
            $children = DB::table('xpcms_admin_menu')->where('pid',$val->mid)->where('status',0)->where('ishidden',0)->orderBy('ord','asc')->get()->all();
            $menus[$key]['children'] = $children;
        }
        $data['menus'] = $menus;
        return view('admins.home.index',$data);
    }

渲染

@foreach ($menu['children'] as $chd)
<dl>
  <a href="javascript:;" onclick="menu_fire(this)" controller="{{$chd->controller}}" action="{{$chd->action}}">{{$chd->title}}</a>
</dl>
@endforeach

处理iframe跳转

function menu_fire(obj) {
        var controller = $(obj).attr('controller');
        var action = $(obj).attr('action');
        var url = '/admins/' + controller + '/' + action;
        url = url.toLowerCase();
        alert(url);
        //找到iframe
        $('#main_frame').attr('src', url);
    }

seo设置页面

seo保存数据

以json字符串的形式存入数据库

<script type="text/javascript">
    function site_save(){
        var title = $.trim($('input[name="title"]').val());
        var keywords = $.trim($('input[name="keywords"]').val());
        var descs = $.trim($('input[name="descs"]').val());
        $.post('/admins/site/save_seo',{title:title,keywords:keywords,descs:descs,_token:$('input[name="_token"]').val()},function(res){
            if(res.code>0){
                return layer.alert(res.msg,{icon:2});
            }else{
                return layer.msg(res.msg);
            }
        },'json');
    }
</script>

public function save_seo(Request $req)
    {
        $title = $req->title;
        $keywords = $req->keywords;
        $desc = $req->descs;
        $key = 'site_seo';
        $values = json_encode(array('title' => $title, 'keywords' => $keywords, 'descs' => $desc));
        $item = DB::table('xpcms_sys_setting')->where('keys', $key)->first();
        if ($item) {
            DB::table('xpcms_sys_setting')->where('keys', $key)->update(array('values' => $values));
        } else {
            DB::table('xpcms_sys_setting')->insert(array('keys' => $key, 'values' => $values));
        }
        return json_encode(array('code' => 0, 'msg' => '保存成功'));
    }

seo渲染数据

 public function seo()
    {
        $data['seoset'] = DB::table('xpcms_sys_setting')->where('keys', 'site_seo')->first();
        if ($data['seoset']) {
            $data['seoset'] = (array) $data['seoset'];
            $data['seoset']['values'] = json_decode($data['seoset']['values'], true);
        }
        return view('admins.site.seo', $data);
    }

<div class="phpcn-input-inline">
  <input type="text" name="title" placeholder="请输入网站标题" class="phpcn-input" value="{{$seoset['values']['title']}}">
</div>

区分ajax/浏览器地址栏请求

private function _norights($request,$msg){
        // 检测访问method
        // 如果是浏览器地址栏请求，直接返回$msg
        // 如果是ajax请求，返回json
        if($request->ajax()){
            return json_encode(array('code'=>1,'msg'=>$msg));
        }else{
            return $msg;
        }
    }