添加相关文章功能相当有用，移植一个过来基本上可以实现比较复杂的页面内包含分类功能，做二次开发时可以省下不少力气。
用例：如果一个产品，属于一个厂家，而这个厂家是动态添加的，既不是一个分类，而是一个厂家的模型，这二者关联的时候使用这个添加相关的功能可以轻易实现。
学会使用phpcms中的类别管理和推荐位管理基本上可以满足文章管理的多数场景，如果能够理解mysql表的设计，可以使用模型管理这个大杀器，
基本上能够想到的功能都能实现，最后再对【添加相关文章】功能进行设计和移植，模型功能能够再次爆发威力，进行各种关系映射。前台配合ajax和json，以及数据表的query函数可以整合实现相当复杂的功能和页面。
1，模型管理中添加一个万能字段。
然后在表单栏中填写：
<input type='hidden' name='info[rt]' id='rt' value='{FIELD_VALUE}' style='50' >
<ul class="list-dot" id="rt_text"></ul>
<div>
<input type='button' value="添加相关" onclick="omnipotent('selectid','?m=content&c=content&a=public_rtlist&modelid=29','添加相关文章',1)" class="button" style="width:66px;">
<span class="edit_content">
<input type='button' value="显示已有" onclick="show_rt({MODELID},{ID})" class="button" style="width:66px;">
</span>
</div>
注意上面的标红字体，需要和相关参数关联
2，在文章修改页面添加如下函数
function show_rt(modelid,id) {
$.getJSON("?<?php echo "token=".$_SESSION['token'];?>&m=content&c=content&a=rt_getjson_ids&modelid="+modelid+"&id="+id, function(json){
var newrt_ids = '';
if(json==null) {
alert('没有添加相关文章');
return false;
}
$.each(json, function(i, n){
newrt_ids += "<li id='"+n.sid+"'>·<span>"+n.title+"</span><a href='javascript:;' class='close' onclick=\"remove_rt('"+n.sid+"',"+n.id+")\"></a></li>";
});
$('#rt_text').html(newrt_ids);
});
}
//移除相关文章
function remove_rt(sid,id) {
var rt_ids = $('#rt').val();
if(rt_ids !='' ) {
$('#'+sid).remove();
var r_arr = rt_ids.split('|');
var newrt_ids = '';
$.each(r_arr, function(i, n){
if(n!=id) {
if(i==0) {
newrt_ids = n;
} else {
newrt_ids = newrt_ids+'|'+n;
}
}
});
$('#rt').val(newrt_ids);
}
}
3，在content.php中填写如下函数
public function public_rtlist() {
ec_main::get_lib_c('format','',0);
$show_header = '';
$model_cache = getcache('model','commons');
if(!isset($_GET['modelid'])) {
showmessage(L('please_select_modelid'));
} else {
$page = intval($_GET['page']);
$modelid = intval($_GET['modelid']);
$this->db->set_model($modelid);
$where = '';
if($_GET['catid']) {
$catid = intval($_GET['catid']);
$where .= "catid='$catid'";
}
$where .= $where ? ' AND status=99' : 'status=99';
if(isset($_GET['keywords'])) {
$keywords = trim($_GET['keywords']);
$field = $_GET['field'];
if(in_array($field, array('id','title','keywords','description'))) {
if($field=='id') {
$where .= " AND `id` ='$keywords'";
} else {
$where .= " AND `$field` like '%$keywords%'";
}
}
}
$infos = $this->db->listinfo($where,'',$page,12);
$pages = $this->db->pages;
include $this->admin_tpl('rtlist');
}
}
public function rt_getjson_ids() {
$modelid = intval($_GET['modelid']);
$id = intval($_GET['id']);
$this->db->set_model($modelid);
$tablename = $this->db->table_name;
$this->db->table_name = $tablename.'_data';
$r = $this->db->get_one(array('id'=>$id),'rt');
if($r['rt']) {
$rt = str_replace('|', ',', $r['rt']);
$rt = trim($rt,',');
$where = "id IN($rt)";
$infos = array();
$this->db->table_name = 'ec_chang';
$datas = $this->db->select($where,'id,title');
foreach($datas as $_v) {
$_v['sid'] = 'v'.$_v['id'];
if(strtolower(CHARSET)=='gbk') $_v['title'] = iconv('gbk', 'utf-8', $_v['title']);
$infos[] = $_v;
}
echo json_encode($infos);
}
}
5增加模板rtlist.tpl.php[content/tpl]
<?php
defined('IN_ADMIN') or exit('No permission resources.');
include $this->admin_tpl('header','admin');
?>
<div class="pad-10">
<form name="searchform" action="" method="get" >
<input type="hidden" value="content" name="m">
<input type="hidden" value="content" name="c">
<input type="hidden" value="public_rtlist" name="a">
<input type="hidden" value="<?php echo $modelid;?>" name="modelid">
<table width="100%" cellspacing="0" class="search-form">
<tbody>
<tr>
<td align="center">
<div class="explain-col">
<select name="field">
<option value='title' <?php if($_GET['field']=='title') echo 'selected';?>><?php echo L('title');?></option>
<option value='keywords' <?php if($_GET['field']=='keywords') echo 'selected';?> ><?php echo L('keywords');?></option>
<option value='description' <?php if($_GET['field']=='description') echo 'selected';?>><?php echo L('description');?></option>
<option value='id' <?php if($_GET['field']=='id') echo 'selected';?>>ID</option>
</select>
<?php echo form::select_category('',$catid,'name="catid"',L('please_select_category'),$modelid,0,1);?>
<input name="keywords" type="text" value="<?php echo stripslashes($_GET['keywords'])?>" style="width:330px;" class="input-text" />
<input type="submit" name="dosubmit" class="button" value="<?php echo L('search');?>" />
</div>
</td>
</tr>
</tbody>
</table>
</form>
<div class="table-list">
<table width="100%" cellspacing="0" >
<thead>
<tr>
<th ><?php echo L('title');?></th>
<th width="100"><?php echo L('belong_category');?></th>
<th width="100"><?php echo L('addtime');?></th>
</tr>
</thead>
<tbody>
<?php foreach($infos as $r) { ?>
<tr onclick="select_list(this,'<?php echo safe_replace($r['title']);?>',<?php echo $r['id'];?>)" class="cu" title="<?php echo L('click_to_select');?>">
<td align='left' ><?php echo $r['title'];?></td>
<td align='center'><?php echo $this->categorys[$r['catid']]['catname'];?></td>
<td align='center'><?php echo format::date($r['inputtime']);?></td>
</tr>
<?php }?>
</tbody>
</table>
<div id="pages"><?php echo $pages;?></div>
</div>
</div>
<style type="text/css">
.line_ff9966,.line_ff9966:hover td{
background-color:#FF9966;
}
.line_fbffe4,.line_fbffe4:hover td {
background-color:#fbffe4;
}
</style>
<SCRIPT LANGUAGE="JavaScript">
<!--
function select_list(obj,title,id) {
var rt_ids = window.top.$('#rt').val();
var sid = 'v<?php echo $modelid;?>'+id;
if($(obj).attr('class')=='line_ff9966' || $(obj).attr('class')==null) {
$(obj).attr('class','line_fbffe4');
window.top.$('#'+sid).remove();
if(rt_ids !='' ) {
var r_arr = rt_ids.split('|');
var newrt_ids = '';
$.each(r_arr, function(i, n){
if(n!=id) {
if(i==0) {
newrt_ids = n;
} else {
newrt_ids = newrt_ids+'|'+n;
}
}
});
window.top.$('#rt').val(newrt_ids);
}
} else {
$(obj).attr('class','line_ff9966');
var str = "<li id='"+sid+"'>·<span>"+title+"</span><a href='javascript:;' class='close' onclick=\"remove_rt('"+sid+"',"+id+")\"></a></li>";
window.top.$('#rt_text').append(str);
if(rt_ids =='' ) {
window.top.$('#rt').val(id);
} else {
rt_ids = rt_ids+'|'+id;
window.top.$('#rt').val(rt_ids);
}
}
}
//-->
</SCRIPT>
</body>
</html>