问题：在添加文章时候选择相关文章只能是本模型下的栏目文章，如果想选用其他模型的文章该如何做？
思路：添加一个自己的相关文章字段
实现：
1.修改系统默认的relation字段表单代码如下：
1 <input type=‘hidden‘ name=‘info[你的字段名]‘ id=‘你的字段名‘ value=‘{FIELD_VALUE}‘ style=‘50‘ >
2 <ul class="list-dot" id="你的字段名_text"></ul>
3 <div>
4 <input type=‘button‘ value="添加相关" onclick="omnipotent(‘selectid‘,‘?m=content&c=content&a=public_relationlist&modelid=目标模型ID&modelname=你的字段名‘,‘添加相关文章‘,1)" class="button" style="width:66px;">
5 <span class="edit_content">
6 <input type=‘button‘ value="显示已有" onclick="show_myrelation(当前模型ID,目标模型ID,{ID},‘你的字段名‘)" class="button" style="width:66px;">
7 </span>
8 </div>
2.打开网站根目录文件statics\js\content_addtop.js
修改remove_relation方法为
1 function remove_relation(sid, id, modelname) {
2 var relation_ids = $(‘#‘ + modelname).val();
3 if (relation_ids != ‘‘) {
4 $(‘#‘ + sid).remove();
5 var r_arr = relation_ids.split(‘|‘);
6 var newrelation_ids = ‘‘;
7 $.each(r_arr, function(i, n) {
8 if (n != id) {
9 if (i == 0) {
10 newrelation_ids = n;
11 } else {
12 newrelation_ids = newrelation_ids + ‘|‘ + n;
13 }
14 }
15 });
16 $(‘#‘ + modelname).val(newrelation_ids);
17 }
18 }
修改show_relation函数为：
1 function show_relation(modelid, id, fieldname) {
2 $.getJSON("?m=content&c=content&a=public_getjson_ids&modelid=" + modelid + "&id=" + id, function(json) {
3 var newrelation_ids = ‘‘;
4 if (json == null) {
5 alert(‘没有添加相关文章‘);
6 return false;
7 }
8 $.each(json, function(i, n) {
9 newrelation_ids += "<li id=‘" + n.sid + "‘>·<span>" + n.title + "</span><a href=‘javascript:;‘ class=‘close‘ onclick=\"remove_relation(‘" + n.sid + "‘," + n.id + ",‘" + fieldname + "‘)\"></a></li>";
10 });
11 $(‘#relation_text‘).html(newrelation_ids);
12 });
13 }
新增show_myrelation方法：
1 function show_myrelation(modelid, modelid2, id, fieldname) {
2 $.getJSON("?m=content&c=content&a=public_getjson_ids2&modelid=" + modelid + "&modelid2=" + modelid2 + "&id=" + id + "&fieldname=" + fieldname, function(json) {
3 var newrelation_ids = ‘‘;
4 if (json == null) {
5 alert(‘没有添加相关文章‘);
6 return false;
7 }
8 $.each(json, function(i, n) {
9 newrelation_ids += "<li id=‘" + n.sid + "‘>·<span>" + n.title + "</span><a href=‘javascript:;‘ class=‘close‘ onclick=\"remove_relation(‘" + n.sid + "‘," + n.id + ",‘" + fieldname + "‘)\"></a></li>";
10 });
11 $(‘#‘ + fieldname + ‘_text‘).html(newrelation_ids);
12 });
13 }
3.打开phpcms\modules\content\content.php文件
修改public_relationlist方法为
1 public function public_relationlist() {
2 $modelname=$_GET[‘modelname‘];
3 pc_base::load_sys_class(‘format‘,‘‘,0);
4 $show_header = ‘‘;
5 $model_cache = getcache(‘model‘,‘commons‘);
6 if(!isset($_GET[‘modelid‘])) {
7 showmessage(L(‘please_select_modelid‘));
8 } else {
9 $page = intval($_GET[‘page‘]);
10
11 $modelid = intval($_GET[‘modelid‘]);
12 $this->db->set_model($modelid);
13 $where = ‘‘;
14 if($_GET[‘catid‘]) {
15 $catid = intval($_GET[‘catid‘]);
16 $where .= "catid=‘$catid‘";
17 }
18 $where .= $where ? ‘ AND status=99‘ : ‘status=99‘;
19
20 if(isset($_GET[‘keywords‘])) {
21 $keywords = trim($_GET[‘keywords‘]);
22 $field = $_GET[‘field‘];
23 if(in_array($field, array(‘id‘,‘title‘,‘keywords‘,‘description‘))) {
24 if($field==‘id‘) {
25 $where .= " AND `id` =‘$keywords‘";
26 } else {
27 $where .= " AND `$field` like ‘%$keywords%‘";
28 }
29 }
30 }
31
32 $infos = $this->db->listinfo($where,‘‘,$page,12);
33 $pages = $this->db->pages;
34 include $this->admin_tpl(‘relationlist‘);
35 }
36 }
新增方法public_getjson_ids2：
1 public function public_getjson_ids2() {
2 $modelid = intval($_GET[‘modelid‘]);
3 $modelid2 = intval($_GET[‘modelid2‘]);
4 $fieldname = $_GET[‘fieldname‘];
5 $id = intval($_GET[‘id‘]);
6 $this->db->set_model($modelid);
7 $tablename = $this->db->table_name;
8 $this->db->table_name = $tablename.‘_data‘;
9 $r = $this->db->get_one(array(‘id‘=>$id),$fieldname);
10 if($r["{$fieldname}"]) { $myrelation = str_replace(‘|‘, ‘,‘, $r["{$fieldname}"]);
11 $myrelation = trim($myrelation,‘,‘); $where = "id IN($myrelation)"; $infos = array();
12 $this->db->set_model($modelid2);
13 $this->model = getcache(‘model‘, ‘commons‘);
14 $this->db->table_name = $this->db->db_tablepre.$this->model[$modelid2][‘tablename‘];
15 $datas = $this->db->select($where,‘id,title‘);
16 foreach($datas as $_v) { $_v[‘sid‘] = ‘v‘.$_v[‘id‘];
17 if(strtolower(CHARSET)==‘gbk‘) $_v[‘title‘] = iconv(‘gbk‘, ‘utf-8‘, $_v[‘title‘]); $infos[] = $_v;
18 }
19 echo json_encode($infos);
20 }
21 }
4.打开phpcms\modules\content\templates\relationlist.tpl.php文件，在public_relationlist action下增加一个参数传递用于修复搜索后不能添加的问题
<input type="hidden" value="public_relationlist" name="a">/*在下面增加*/ <input type="hidden" value="<?php echo($modelname)?>" name="modelname">
后修改
<?php foreach($infos as $r) {?>
<tr onclick="select_list(this,‘<?php echo safe_replace($r[‘title‘]);?>‘,<?php echo $r[‘id‘];?>,‘<?php echo $Mname;?>‘)" 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($r[‘inputtime‘]);?></td>
</tr>
<?php }?>
以及最后的JavaScript
1 <SCRIPT LANGUAGE = "JavaScript" >
2 < !--
3 function select_list(obj, title, id, modelname) {
4 var relation_ids = window.top.$(‘#‘ + modelname).val();
5 var sid = ‘v<?php echo $modelid;?>‘ + id;
6 if ($(obj).attr(‘class‘) == ‘line_ff9966‘ || $(obj).attr(‘class‘) == null) {
7 $(obj).attr(‘class‘, ‘line_fbffe4‘);
8 window.top.$(‘#‘ + sid).remove();
9 if (relation_ids != ‘‘) {
10 var r_arr = relation_ids.split(‘|‘);
11 var newrelation_ids = ‘‘;
12 $.each(r_arr, function (i, n) {
13 if (n != id) {
14 if (i == 0) {
15 newrelation_ids = n;
16 } else {
17 newrelation_ids = newrelation_ids + ‘|‘ + n;
18 }
19 }
20 });
21 window.top.$(‘#‘ + modelname).val(newrelation_ids);
22 }
23 } else {
24 $(obj).attr(‘class‘, ‘line_ff9966‘);
25 var str = "<li id=‘" + sid + "‘><span>" + title + "</span><a href=‘javascript:;‘ class=‘close‘ onclick=\"remove_relation(‘" + sid + "‘," + id + ",‘<?php echo $modelname;?>‘)\"></a></li>";
26 window.top.$(‘#‘ + modelname + ‘_text‘).append(str);
27 if (relation_ids == ‘‘) {
28 window.top.$(‘#‘ + modelname).val(id);
29 } else {
30 relation_ids = relation_ids + ‘|‘ + id;
31 window.top.$(‘#‘ + modelname).val(relation_ids);
32 }
33 }
34 }
35 //-->
36 < /SCRIPT>
功能修改完毕
5.前台调用
添加了相关文章后
1 <div class="card-body">
2 {if $relationC!=‘‘}
3 {php $rel = explode(‘|‘,$relationC);}
4 {loop $rel $picture_id}
5 {pc:get sql="select * from lvv9_news where id=$picture_id"}
6 {loop $data $r}
7 <div>
8 <a href="{$r[url]}" title="{$r[alt]}"><img class="img-fluid" src="{thumb($r[thumb],200,150,0)}" alt="{$r[title]}"/></a>
9 <p><a href="{$r[url]}" title="{$r[title]}">{$r[title]}</a></p>
10 </div>
11
12 {/loop}
13 {/pc}
14 {/loop}
15 {/if}
16 </div>
其中亮黄的部分为我的字段名称和数据库文章模型的表名，替换即可！
6.感谢
感谢https://www.eqifei.net/post-268.html#comments 这个地址的文章
原文地址：https://www.cnblogs.com/tianchengcheng/p/9125661.html
时间： 2024-09-30 21:29:33