无插件代码实现WordPress分类目录模板选择功能

/*分类模板选择*/

class Select_Category_Template{

public function __construct() {

add_filter( 'category_template', array($this,'get_custom_category_template' ));

add_action ( 'edit_category_form_fields', array($this,'category_template_meta_box'));

add_action( 'category_add_form_fields', array( &$this, 'category_template_meta_box') );

add_action( 'created_category', array( &$this, 'save_category_template' ));

add_action ( 'edited_category', array($this,'save_category_template'));

do_action('Custom_Category_Template_constructor',$this);

}

// 添加表单到分类编辑页面

public function category_template_meta_box( $tag ) {

$t_id = $tag->term_id;

$cat_meta = get_option( "category_templates");

$template = isset($cat_meta[$t_id]) ? $cat_meta[$t_id] : false;

?>

<tr class="form-field">

<th scope="row" valign="top"><label for="cat_Image_url"><?php _e('Category Template'); ?></label></th>

<td>

<select name="cat_template" id="cat_template">

<option value='default'><?php _e('Default Template'); ?></option>

<?php page_template_dropdown($template); ?>

</select>

<br />

<span class="description"><?php _e('为此分类选择一个模板'); ?></span>

</td>

</tr>

<?php

do_action('Custom_Category_Template_ADD_FIELDS',$tag);

}

// 保存表单

public function save_category_template( $term_id ) {

if ( isset( $_POST['cat_template'] )) {

$cat_meta = get_option( "category_templates");

$cat_meta[$term_id] = $_POST['cat_template'];

update_option( "category_templates", $cat_meta );

do_action('Custom_Category_Template_SAVE_FIELDS',$term_id);

}

}

// 处理选择的分类模板

function get_custom_category_template( $category_template ) {

$cat_ID = absint( get_query_var('cat') );

$cat_meta = get_option('category_templates');

if (isset($cat_meta[$cat_ID]) && $cat_meta[$cat_ID] != 'default' ){

$temp = locate_template($cat_meta[$cat_ID]);

if (!empty($temp))

return apply_filters("Custom_Category_Template_found",$temp);

}

return $category_template;

}

}

$cat_template = new Select_Category_Template();

/*分类模板选择*/