WordPress 分类及分类下的文章添加模板选择功能 | WordPress教程

吾爱互联

本人一直在用一个分类和文章模板选择器的，不记得是从哪里弄来的，就想拿出来分享一下。利用这个模板选择器你可以给每个分类和其下的文章指定模板，非常方便，制作模板也很简单，只要加上注释代码即可。下面是图片： 要实现此功能, 你需要在你的主题根目录文件夹下新建一个template.php, 并将下面的代码复制进去(或者点此下载该文件)：<?phpfunction cat_temp_menus() {add_menu_page('模板选择器', '模板选择器', 'manage_options', basename(__FILE__), 'cat_temp_options_page');}function cat_temp_meta() {global $wpdb,$post_ID;$templates = cat_temp_get_page_templates();$current = cat_temp_post_template($post_ID);$out = '<select name="cat_temp_template" style="width:100%">';$out .= '<option value="none"';if ($post_ID == 0 ||!$current) $out .= ' selected="selected"';$out .= '>请选择</option>';$out .= '<option value="/single.php"';if ($current == "/single.php") $out .= ' selected="selected"';$out .= '>默认模板</option>';foreach ($templates as $template =>$file) {$out .= '<option value="'.$file.'"';if ($current == $file) $out .= ' selected="selected"';$out .= '>'.$template.'</option>';}$out .= "</select>";$out .= "<p>选择文章模板</p>";echo $out;}function cat_temp_post_submit($post_ID) {global $wpdb;if ($_POST['cat_temp_template']) {$templates =  (get_option("cat_temp_post"));if ($_POST['cat_temp_template'] != 'none') {$templates[$post_ID] = $_POST['cat_temp_template'];}else {if ($templates[$post_ID]) {unset($templates[$post_ID]);}}update_option("cat_temp_post",($templates));}}function cat_temp_post_template($ID) {$templates =  (get_option("cat_temp_post"));return $templates[$ID];}function cat_temp($template) {global $wp_query;$post_obj = $wp_query->get_queried_object();if (is_single()) {$data = cat_temp_get_data();$categories = get_the_category($post_obj->ID);}else if (is_category()) {$data = cat_temp_get_data(true);$categories[0] = &get_category($post_obj->cat_ID);}$temp_data;foreach((array)$categories as $category) {if ($data[$category->term_id]['template'] != '0') {$temp_data[$data[$category->term_id]['template']] = $data[$category->term_id]['priority']+($category->term_id/80000);}}foreach((array)$data as $key =>$cat) {if ($cat['all'] == "all"&&$cat['template'] != "0") {$id = (is_single()) ?(int)$cat['id'] : $key;$descendants = get_term_children($id,'category');if ($descendants &&in_category($descendants)) {$temp_data[$cat['template']] = $cat['priority']+($cat['id']/80000);}}}if (is_array($temp_data)) {asort($temp_data);$template = array_shift(array_keys($temp_data));}if (is_single()) {$overRule = cat_temp_post_template($post_obj->ID);if ($overRule) $template = $overRule;}if (!empty($template)) {if (file_exists(TEMPLATEPATH.$template)) {include(TEMPLATEPATH.$template);exit;}}}function cat_temp_is_cat($cat,$_post = null) {if (in_category($cat,$_post)) {return true;}else {$descendants = get_term_children((int)$cat,'category');if ($descendants &&in_category($descendants,$_post)) return true;}return false;}function cat_temp_get_page_templates($str = "Template Name") {$themes = get_themes();$theme = get_current_theme();$templates = $themes[$theme]['Template Files'];$page_templates = array();if (is_array($templates)) {foreach((array)$templates as $template) {if (!file_exists($template)) $template = WP_CONTENT_DIR.$template;$template_data = implode('',file($template));$name = '';if (preg_match('|'.$str.'.*)$|mi',$template_data,$name))$name = $name[1];if (!empty($name)) {$page_templates[trim($name)] = str_replace($themes[$theme]['Template Dir'],"",$template);}}}return $page_templates;}function cat_temp_cats($item,$current,$archive=false) {if ($archive) {$templates = cat_temp_get_page_templates('Archive Template');$default = '/archive.php';}else {$templates = cat_temp_get_page_templates();$default = '/single.php';}$out = '<select title="Template" class="ct_template" name="data';if ($archive) $out .= '[archive]';$out .= '['.$item.'][template]">';$out .= '<option value="0"';if ($current == "0") $out .= ' selected="selected"';$out .= '>未指定</option>';$out .= '<option value="'.$default.'"';if ($current == $default) $out .= ' selected="selected"';$out .= '>默认模板</option>';foreach ($templates as $template =>$file) {$out .= '<option value="'.$file.'"';if ($current == $file) $out .= ' selected="selected"';$out .= '>'.$template.'</option>';}$out .= "</select>";return $out;}function cat_temp_categories($child = 0) {$data = array("hide_empty"=>false,"child_of"=>$child,"pad_count"=>false,);$categories = get_categories($data);$list = array();foreach ((array)$categories as $cat) {if ($cat->parent == $child) {$list[] = array("name"=>$cat->name,"id"=>$cat->cat_ID,"count"=>cat_temp_getALLposts($cat->cat_ID),"acount"=>$cat->category_count,"child"=>cat_temp_categories($cat->cat_ID),);}}return $list;}function cat_temp_li_fun($data) {$out = "<ul class=\"cat-temp\">";foreach ((array)$data as $root) {$out .= "<li>".$root['name']." (".$root['count'].")</li>";if (count($root['child']) >0) {$out .= cat_temp_li_fun($root['child']);}}$out .= "</ul>";return $out;}function cat_temp_priority($item,$current,$archive) {$pri = array("最低","低","中等","高","最高");$out = '<select class="ct_priority" title="Template Priority" name="data';if ($archive) $out .= '[archive]';$out .= '['.$item.'][priority]">';$t = 0;for ($i = 10;$i >= 1;$i = $i-2) {$out .= '<option value="'.$i.'"';if (intval($current) == $i) $out .= ' selected="selected"';$out .= '>'.$pri[$t].'</option>';$t++;}$out .= "</select>";return $out;}function cat_temp_getALLposts($ID) {$td = array('numberposts'=>-1,'category'=>$ID,);return count(get_posts($td));}function cat_temp_get_data($archive=false,$id=false) {$t = (!$archive) ?(get_option('cat_temp_data')) :  (get_option('cat_arch_data'));return (!$id) ?$t : $t[$id];}function cat_temp_update($data) {$archive = $data['archive'];unset($data['archive']);update_option('cat_temp_data',($data));update_option('cat_arch_data',($archive));}function cat_temp_delete() {delete_option('cat_temp_data');delete_option('cat_temp_post');delete_option('cat_arch_data');}function cat_temp_sub_cats($id,$data,$archive=false) {$out .= ' <input type="checkbox"';if ($data == "all") $out .= ' checked="checked"';$out .= ' name="data';if ($archive) $out .= "[archive]";$out .= '['.$id.'][all]" value="all" title="Apply to sub-categories" /> <small>用于子分类</small>';return $out;}function cat_temp_templates($id,$archive) {if ($archive) {$title = "分类";$class = " class=\"noborder\"";$class2 = " noborder";}else {$title = "文章";}$data = cat_temp_get_data($archive,$id);$out .= "<td class=\"r$class2\" >$title:</td>";$out .= "<td $class><div>".cat_temp_cats($id,$data['template'],$archive);$out .= cat_temp_sub_cats($id,$data['all'],$archive).'</div></td>';$out .= "<td $class><div>".cat_temp_priority($id,$data['priority'],$archive)."</div></td>";return $out;}function cat_temp_td_fun($data,$padding = 5) {$out = "";foreach ((array)$data as $root) {$out .= '<tr>';$out .= '<td class="c" rowspan="2">'.$root['id'];$out .= '<input type="hidden" name="data['.$root['id'].'][id]" value="'.$root['id'].'" />';$out .= '</td>';$out .= '<td class="wide" style="padding-left:'.$padding.'px;" rowspan="2">'.$root['name'].'</td>';$out .= cat_temp_templates($root['id'],true);$out .= '<td rowspan="2">'.$root['acount'].' ('.$root['count'].')</td>';$out .= "</tr><tr>";$out .= cat_temp_templates($root['id'],false);$out .= '</tr>';if (count($root['child']) >0) {$out .= cat_temp_td_fun($root['child'],$padding+10);}}return $out;}function cat_temp_options_page() {$_GET['lang'] = 'all';;echo '<div class="wrap cat-template"><div class="icon32" id="icon-themes"><br/></div><h2>模板选择器</h2>';if ($_POST['update_theme']) {cat_temp_update($_POST['data']);echo '<div id="message" class="updated"><p>成功保存.</p></div>';};echo '  <p>请选择分类和页面模板</p><form method="post" action="';echo $_SERVER['PHP_SELF']."?".$_SERVER['QUERY_STRING'];;echo '">';if(function_exists('settings_fields')){settings_fields('cat-temp-options');}else {wp_nonce_field('update-options');;echo '    <input type="hidden" name="action" value="update" />';};echo '    <table><tr><td style="vertical-align:top" width="70%"><table width="100%" class="widefat" id="cat_temps"><thead><tr><th width="2%" class="c">ID</th><th>分类</th><th colspan="2">模板</th><th width="4%">等级</th><th>文章数</th></tr></thead><tbody>';echo cat_temp_td_fun(cat_temp_categories());;echo '            </tbody></table></td><td style="vertical-align:top"><table width="100%" class="widefat"><thead><tr><th>说明</th></tr><tr><td>按照以下说明制作模板:</td></tr><tr><td>分类模板:<pre style="direction:ltr"><?php/**Archive Template: 分类模板名**/?></pre></td></tr><tr><td>文章模板:<pre style="direction:ltr"><?php/**Template Name: 文章模板名**/?></pre></td></tr></thead></table></td></tr></table><p class="submit"><input type="submit" class="button-primary autowidth" name="update_theme" value="保存" /></p></form></div>';}add_action('admin_menu','cat_temp_menus');add_action('save_post','cat_temp_post_submit');add_filter('template_redirect','cat_temp');?>然后在functions.php 中引入这个文件即可：include (TEMPLATEPATH . '/template.php');