/*
* post meta from 添加文章来源自定义字段
* ====================================================
*/
// 创建字段信息
$postmeta_from=array(
array(
"name"=>"fromname",
"std"=>"",
"title"=>__('来源名','orui').'：'
),
array(
"name"=>"fromurl",
"std"=>"",
"title"=>__('来源网址','orui').'：'
)
);
// 函数连接到指定 action（动作）
add_action('admin_menu','_postmeta_from_create');
add_action('save_post','_postmeta_from_save');
//创建自定义字段输入框
function_postmeta_from(){
global$post,$postmeta_from;
foreach($postmeta_from as$meta_box){
$meta_box_value=get_post_meta($post->ID,$meta_box['name'].'_value',true);
if($meta_box_value=="")
$meta_box_value=$meta_box['std'];
echo'<p>'.$meta_box['title'].'</p>';
echo'<p><input type="text" style="width:98%" value="'.$meta_box_value.'" name="'.$meta_box['name'].'_value"></p>';
}
echo'<input type="hidden" name="post_newmetaboxes_noncename" id="post_newmetaboxes_noncename" value="'.wp_create_nonce(plugin_basename(__FILE__)).'" />';
}
//创建自定义字段模块
function_postmeta_from_create(){
global$theme_name;
if(function_exists('add_meta_box')){
add_meta_box('new-meta-boxes',__('来源','haoui'),'_postmeta_from','post','normal','high');
}
}
// 保存数据
function_postmeta_from_save($post_id){
global$postmeta_from;
if(!wp_verify_nonce($_POST['post_newmetaboxes_noncename'],plugin_basename(__FILE__)))
return;
if(!current_user_can('edit_posts',$post_id))
return;
foreach($postmeta_from as$meta_box){
$data=$_POST[$meta_box['name'].'_value'];
if(get_post_meta($post_id,$meta_box['name'].'_value')=="")
add_post_meta($post_id,$meta_box['name'].'_value',$data,true);
elseif($data!=get_post_meta($post_id,$meta_box['name'].'_value',true))
update_post_meta($post_id,$meta_box['name'].'_value',$data);
elseif($data=="")
delete_post_meta($post_id,$meta_box['name'].'_value',get_post_meta($post_id,$meta_box['name'].'_value',true));
}
}
// 调用函数
functionmo_get_post_from($pid='',$prevtext='来源：'){
if(!$pid){
$pid=get_the_ID();
}
$fromname=trim(get_post_meta($pid,"fromname_value",true));
$fromurl=trim(get_post_meta($pid,"fromurl_value",true));
$from='';
if($fromname){
if($fromurl){
$from='<a href="'.$fromurl.'" target="_blank" rel="external nofollow">'.$fromname.'</a>';
}else{
$from=$fromname;
}
$from=($prevtext).$from;
}
return$from;
}