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laravel框架关于搜索功能的实现

时间:2018-03-22 09:25:30 编辑:猪哥 来源:转载

这里的搜索功能主要基于表单get提交实现的

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php部分逻辑

public function article_list(){
  //echo 'zoule';exit; 测试表单是否走进方法中 大家随意写
  $shownum = 1;
  if(array_key_exists('class',$_GET)||array_key_exists('keywords',$_GET)){
   //echo '111'; 
   if($_GET['class']){
   //Article模型 leftJoin表连接 查询根据俩个表里的这些字段来实行
     $postdata = Article::leftJoin('category', function($join) {
      $join->on('article.class_id', '=', 'category.id');
     })->select(['article.id','category.class_name','article.status','article.title_editing','article.update_time'])->where('article.class_id','=',$_GET['class'])->orderBy('release_time','desc')->paginate($shownum);
   }elseif($_GET['keywords']){
     $postdata = Article::leftJoin('category', function($join) {
      $join->on('article.class_id', '=', 'category.id');
     })->select(['article.id','category.class_name','article.status','article.title_editing','article.update_time'])->where('article.title_editing','=',$_GET['keywords'])->orderBy('release_time','desc')->paginate($shownum);
    
   }else{
     $postdata = Article::leftJoin('category', function($join) {
      $join->on('article.class_id', '=', 'category.id');
     })->select(['article.id','category.class_name','article.status','article.title_editing','article.update_time'])->orderBy('release_time','desc')->paginate($shownum);
   }
  }else{
   //echo '2222';
   $postdata = Article::leftJoin('category', function($join) {
     $join->on('article.class_id', '=', 'category.id');
   })->select(['article.id','category.class_name','article.status','article.title_editing','article.update_time'])->orderBy('release_time','desc')->paginate($shownum);
  }
  //分类id不是父id
  $category = DB::table('category')->where('parent_id','!=','0')->get();
  //渲染页面 传递 参数
  return view('backend.article_list',['postdata'=>$postdata,'shownum'=>$shownum,'category'=>$category]);
}

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