1.需求描述
首页文章列表,需要同时获取文章的点赞和被关注数,同时如果被当前用户点赞或关注了会显示相应小图标进行区别。图示如下:
2.解决方案
数据库设计:
文章对应Article表,其中包括收藏数字段fav,点赞数字段zan
中间表user_fav,user_zan分别表示某一用户对某篇文章的点赞与收藏, 其中包括userid,usertype,article_id等字段
TP5代码实现部分:
框架用的TP5,参考开发手册其中关联模型部分,在article模型中增加userFav和userZan方法
public function userFav() { return $this->hasMany('UserFav','article_id')->field('userid'); } public function userZan() { return $this->hasMany('UserZan','article_id')->field('userid'); }
Controller中index方法显示文章列表
public function index($page=1) { // $this->articlemodel = new Article(); // $list = $this->articlemodel->where('schoolid',$user['schoolid'])->where('classid',$user['classid'])->group('create_time')->select(); $list = $this->articlemodel->withCount(['userzan'=>function($query){ $query->where('userid',cookie('userid'))->where('usertype',cookie('usertype')); }])->order('zan desc,is_top desc,is_recommend desc,id desc')->paginate(5,false,['page' => $page]); $this->assign('list', $list); return $this->fetch(); }
View中获取点赞数关注数同时判断如果当前用户点赞,部分代码
{volist name="list" id="vo"} <div class="in_parent"> <img src="{$vo['photo'][0]}" data-id="{$vo['id']}"> <div class="in_par_con"> <p>{$vo.title}</p> </div> <div class="in_par_con"> {foreach :explode(',',$vo['tags']) as $tag} <span>{$tag}</span> {/foreach} </div> <div class="in_per"> <div class="in_per_lf fl"> <img src="__H5IMAGES__/pic.png" class="fl"/> <div class="fl ml5 mt10">{$vo.author}<p class="gray">{php}echo date('Y-m-d',strtotime($vo['create_time']));{/php}</p></div> </div> <div class="in_per_rt fr"> <span class="gray fr mt30 ml3 care-val">收藏 {$vo.fav}</span> <div class="fr mt30 ml3 care{eq name='$vo.userfav_count' value='1'} care01{/eq}" data-id="{$vo.id}"></div> <span class="gray fr mt30 ml3 zan-val">{$vo.zan}</span> <div class="fr mt30 ml3 zan{eq name='$vo.userzan_count' value='1'} zan01{/eq}" data-id="{$vo.id}"></div> </div> <div class="clear"></div> </div> </div> {/volist}
php用的时间不长,用的不对的地方望不吝赐教