我是codeigniter和php的新手。这是我的模特:
function getRelated($newsId, $catId){
$this->db->select('a.id, a.category, a.title, a.photo, a.caption, a. summary, a.detail, a.page_views, b.cat_id');
$this->db->from('news as a');
$this->db->order_by("time", "desc");
$this->db->join('news_categories as b', 'a.id = b.news_id');
$this->db->where('a.id <>', $newsId);
$this->db->where('b.cat_id', $catId);
$query = $this->db->get();
echo $this->db->last_query();
return $query->result();
}
这是我的控制者:
public function detail($id, $catId){
$this->load->model('news_model');
$data['list'] = $this->news_model->get($id);
$data['related'] = $this->news_model->getRelated($id, $catId);
$this->load->view('page_header');
$this->load->view('news_detail', $data);
$this->load->view('page_footer');
}
这是视图中查询的结果:
选择
a
。id
,a
。category
,a
。title
,a
。{{1} },photo
。a
,caption
。a
,summary
。a
,detail
。a
,page_views
。b
FROMcat_id
作为news
加入a
作为news_categories
ONb
。a
=id
。b
WHEREnews_id
。a
&lt;&gt; '2'和id
。b
= 'title%20one%20test1'ORDDER BYcat_id
DESC
如上所示(视图),cat_id的结果是标题.. 我的代码怎么了?
我的视图文件(news_detail):
time
帖子的类别是多选。因此,每个帖子都可以有多个类别。我该怎么办?
提前致谢
答案 0 :(得分:0)
我修改了您的代码。试试这个......!
function getRelated($newsId, $catId){
$this->db->select('a.id, a.category, a.title, a.photo, a.caption, a. summary, a.detail, a.page_views, b.cat_id');
$this->db->from('news as a');
$this->db->order_by("time", "desc");
$this->db->join('news_categories as b', 'a.id = b.news_id and a.id<>'.$newID.'and b.cat_id=$catID','inner');
$query = $this->db->get();
echo $this->db->last_query();
return $query->result();
}
答案 1 :(得分:0)
你在这里犯了错误
<a class="title" href="news/detail/<?= $value->id . "/" . $value->title ?>"><?= $value->title ?></a>
当您定义任何类似
的功能时public function detail($id, $catId){ }
然后$id
将是方法名称detail
之后的第一个分段,即$value->id
和$catId
将是方法名称之后的第二个分段,即$value->title
。
所以将catID添加为链接中的第二个段,如下所示
<a class="title" href="news/detail/<?= $value->id . "/" . $value->catID ?>"><?= $value->title ?></a>
答案 2 :(得分:0)
在视图文件(news_detail)中更改锚标记。
此处您发送的是标题而非类别ID
替换
<a class="title" href="news/detail/<?= $value->id . "/" . $value->title?>"><?= $value->title ?></a>
通过
<a class="title" href="news/detail/<?= $value->id . "/" . $value->cat_id?>"><?= $value->title ?></a>
答案 3 :(得分:0)
替换视图文件(news_detail):
<h3>Related News</h3>
<?php
$i = 0;
foreach ($related as $key => $value) {
if (++$i > 3)
break;
?>
<div class="list">
<a class="title" href="news/detail/<?= $value->id . "/" . $value->cat_id ?>"><?= $value->title ?></a>
</div>
<?php
}?>