实现wordpress自定义字段面板调用tinymce编辑器

博客吧前面的教程《WordPress添加自定义字段栏目面板》介绍了实现自定义字段域面板的方法,前面介绍的方法使用的是input输入框,输出的是纯文本内容,可能无法满足部分用户的需求。网上搜索是否可以调用wordpress默认编辑器的方法,找到以下教程内容,有需要的博主可以借用一下,该方法是使用了wp_editor函数实现。

相关代码:

把下面的代码添加到functions.php文件:

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<?php   
    $new_meta_boxes =    
    array(   
        "title" => array(   
            "name" => "_meta_title",   
            "std" => "",   
            "title" => "标题",   
            "type"=>"title"),      
 
        "keywords" => array(   
            "name" => "_meta_keywords",   
            "std" => "",      
            "title" => "关键字",   
            "type"=>"text"),   
 
        "description" => array(   
            "name" => "_meta_description",   
            "std" => "",      
            "title" => "描述",   
            "type"=>"textarea"),   
 
        "category" => array(   
            "name" => "_meta_cate",   
            "std" => "",      
            "title" => "选择分类",   
            "subtype"=> "cat",   
            "type"=>"dropdown"),   
 
        "radio" => array(   
            "name" => "_meta_radio",   
            "std" => 1,      
            "title" => "单选框",   
            "buttons" => array('Yes','No'),   
            "type"=>"radio"),   
 
        "checkbox" => array(   
            "name" => "_meta_checkbox",   
            "std" => 1,      
            "title" => "复选框",   
            "type"=>"checkbox"),   
 
        "checkbox" => array(   
            "name" => "_meta_eidtor",   
            "std" => '',      
            "title" => "编辑器",   
            "type"=>"editor"),   
 
    );   
 
 
    function new_meta_boxes() {   
        global $post, $new_meta_boxes;   
        foreach($new_meta_boxes as $meta_box) {   
            //获取保存的是   
            $meta_box_value = get_post_meta($post->ID, $meta_box['name'].'_value', true);   
            if($meta_box_value != "")      
                $meta_box['std'] = $meta_box_value;//将默认值替换为以保存的值   
 
            echo'<input type="hidden" name="'.$meta_box['name'].'_noncename" id="'.$meta_box['name'].'_noncename" value="'.wp_create_nonce( plugin_basename(__FILE__) ).'" />';   
            //通过选择类型输出不同的html代码   
            switch ( $meta_box['type'] ){   
                case 'title':   
                    echo'<h4>'.$meta_box['title'].'</h4>';   
                    break;   
                case 'text':   
                    echo'<h4>'.$meta_box['title'].'</h4>';   
                    echo '<input type="text" size="40" name="'.$meta_box['name'].'_value" value="'.$meta_box['std'].'" /><br />';   
                    break;   
                case 'textarea':   
                    echo'<h4>'.$meta_box['title'].'</h4>';   
                    echo '<textarea cols="60" rows="3" name="'.$meta_box['name'].'_value">'.$meta_box['std'].'</textarea><br />';   
                    break;   
                case 'dropdown':   
                    echo'<h4>'.$meta_box['title'].'</h4>';   
                    if($meta_box['subtype'] == 'cat'){   
                        $select = 'Select category';   
                        $entries = get_categories('title_li=&orderby=name&hide_empty=0');//获取分类   
                    }   
                    echo '<p><select name="'.$meta_box['name'].'_value"> ';   
                    echo '<option value="">'.$select .'</option>  ';   
                    foreach ($entries as $key => $entry){   
                        $id = $entry->term_id;   
                        $title = $entry->name;   
                        if ( $meta_box['std'] == $id ){   
                            $selected = "selected='selected'";   
                        }else{   
                            $selected = "";   
                        }   
                        echo "<option $selected value='". $id."'>". $title."</option>";   
                    }   
                    echo '</select><br />';   
                    break;   
                case 'radio':   
                    echo'<h4>'.$meta_box['title'].'</h4>';   
                    $counter = 1;   
                    foreach( $meta_box['buttons'] as $radiobutton ) {   
                        $checked ="";   
                        if(isset($meta_box['std']) && $meta_box['std'] == $counter) {   
                            $checked = 'checked = "checked"';   
                        }   
                        echo '<input '.$checked.' type="radio" class="kcheck" value="'.$counter.'" name="'.$meta_box['name'].'_value"/>'.$radiobutton;   
                        $counter++;   
                    }   
                    break;   
                case 'checkbox':   
                    echo'<h4>'.$meta_box['title'].'</h4>';   
                    if( isset($meta_box['std']) && $meta_box['std'] == 'true' )   
                        $checked = 'checked = "checked"';   
                    else  
                        $checked  = '';    
                    echo '<input type="checkbox" name="'.$meta_box['name'].'_value" value="true"  '.$checked.' />';   
                    break;   
                //编辑器   
                case 'editor':   
                    echo'<h4>'.$meta_box['title'].'</h4>';   
                    wp_editor( $meta_box['std'], $meta_box['name'].'_value' );   
                    //带配置参数   
                    /*wp_editor($meta_box['std'],$meta_box['name'].'_value', $settings = array(quicktags=>0,//取消html模式
                        tinymce=>1,//可视化模式  
                        media_buttons=>0,//取消媒体上传  
                        textarea_rows=>5,//行数设为5  
                        editor_class=>"textareastyle") ); */  
                break;   
 
            }             
        }      
    }   
 
    function create_meta_box() {      
        global $theme_name;      
 
        if ( function_exists('add_meta_box') ) {      
            add_meta_box( 'new-meta-boxes', '自定义模块', 'new_meta_boxes', 'post', 'normal', 'high' );      
        }      
    }   
    function save_postdata( $post_id ) {      
        global $post, $new_meta_boxes;      
 
        foreach($new_meta_boxes as $meta_box) {      
            if ( !wp_verify_nonce( $_POST[$meta_box['name'].'_noncename'], plugin_basename(__FILE__) ))  {      
                return $post_id;      
            }      
 
            if ( 'page' == $_POST['post_type'] ) {      
                if ( !current_user_can( 'edit_page', $post_id ))      
                    return $post_id;      
            }       
            else {      
                if ( !current_user_can( 'edit_post', $post_id ))      
                    return $post_id;      
            }      
 
            $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));      
        }      
    }   
 
    add_action('admin_menu', 'create_meta_box');      
    add_action('save_post', 'save_postdata');   
?>

然后在当前主题模板中使用get_post_meta函数获取自定义栏目的内容,需要注意的是配置数组中配置了name,但是保存自定义字段的时候在字段名称后面加了_value,以获取_meta_eidtor为例,调用的代码是:

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$ashu_eidtor = get_post_meta($post->ID, "_meta_eidtor_value", true);

如何像普通文章一样输出?也就是自动加<p>标签和换行?如下:

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$ashu_editor = get_post_meta($post->ID, "_meta_eidtor_value", true);   
$ashu_editor = apply_filters('the_content', $ashu_editor);   
$ashu_editor = str_replace(']]>', ']]&gt;', $ashu_editor);   
echo $ashu_editor;

代码转自:阿树工作室

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