纯代码wordpress 网站多条件筛选功能制作

2019-10-2309:27:14网站建设与开发Comments3,721 views字数 8559阅读模式

一些网站，拥有多重筛选功能。例如一些房产网站上，就会经常使用多条件筛选功能，方便用户进行筛选房源。效果如下图：文章源自菜鸟学院-https://www.cainiaoxueyuan.com/cms/16945.html

文章源自菜鸟学院-https://www.cainiaoxueyuan.com/cms/16945.html

自己做网站时，如何制作这样的多条件筛选功能呢？下面学做网站论坛就来介绍一下这种多条件筛选功能制作方法。文章源自菜鸟学院-https://www.cainiaoxueyuan.com/cms/16945.html

方法/步骤

创建自定义分类，增加多个筛选条件。复制下面的代码，你可以直接复制粘贴到functions.php文件中。
//给post创建四个自定义分类法
add_action(\'init\', \'ashu_post_type\');
function ashu_post_type() {
register_taxonomy(
\'province\',
\'post\',
array(
\'label\' => \'省\',
\'rewrite\' => array( \'slug\' => \'province\' ),
\'hierarchical\' => true
)
);
register_taxonomy(
\'city\',
\'post\',
array(
\'label\' => \'市\',
\'rewrite\' => array( \'slug\' => \'city\' ),
\'hierarchical\' => true
)
);
register_taxonomy(
\'genre\',
\'post\',
array(
\'label\' => \'类型\',
\'rewrite\' => array( \'slug\' => \'genre\' ),
\'hierarchical\' => true
)
);
register_taxonomy(
\'price\',
\'post\',
array(
\'label\' => \'价格\',
\'rewrite\' => array( \'slug\' => \'price\' ),
\'hierarchical\' => true
)
);
}
添加完以上代码后，应该在后台左侧菜单会多出四个自定义分类法：
在自己网站的主题文件夹下面建立一个page-sift.php文件，这个文件将作为筛选页面的模板文件。
添加重写规则，使得wordpress 网站多条件筛选功能页面也可以伪静态。将下列代码存放到 include/rewrite.php文件中：
//获取筛选页面的Url
function ashuwp_sift_link(){
return home_url()."/sift";
}
/*
*添加query变量
*/
function ashuwp_query_vars($public_query_vars) {
$public_query_vars[] = 'ashuwp_page';
$public_query_vars[] = 'condition';
return $public_query_vars;
}
/*
*sift页面的重写规则,三种url：
*ashuwp.com/sift ashuwp.com/sift/0_0_0_0/ ashuwp.com/sift/0_0_0_0/page/2
*/
function ashuwp_rewrite_rules( $wp_rewrite ){
$new_rules = array(
'sift/?$' => 'index.php?ashuwp_page=sift',
'sift/([^/]+)/?$' => 'index.php?ashuwp_page=sift&condition='.$wp_rewrite->preg_index(1),
'sift/([^/]+)/page/?([0-9]{1,})/?$' => 'index.php?ashuwp_page=sift&condition='.$wp_rewrite->preg_index(1).'&paged='.$wp_rewrite->preg_index(2)
);
$wp_rewrite->rules = $new_rules + $wp_rewrite->rules;
}
/*
*载入模板规则
*用page-sift.php作为筛选页面的模板文件
*/
function ashuwp_template_redirect(){
global $wp,$wp_query,$wp_rewrite;
if( !isset($wp_query->query_vars['ashuwp_page']) )
return;
$reditect_page = $wp_query->query_vars['ashuwp_page'];
if ($reditect_page == "sift"){
include(get_template_directory().'/page-sift.php');
die();
}
}
/*
*更新重写规则
*激活主题的时候
*/
function ashuwp_flush_rewrite_rules() {
global $pagenow, $wp_rewrite;
if ( 'themes.php' == $pagenow && isset( $_GET['activated'] ) )
$wp_rewrite->flush_rules();
}
add_action( 'load-themes.php', 'ashuwp_flush_rewrite_rules' );
add_action('generate_rewrite_rules', 'ashuwp_rewrite_rules' );
add_action('query_vars', 'ashuwp_query_vars');
add_action("template_redirect", 'ashuwp_template_redirect');
将下面代码存放在步骤三新建的page-sift.php文件中；
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>筛选页面教程</title>
<link rel='stylesheet' id='ashuwp-style-css' href='<?php echo get_stylesheet_uri(); ?>' type='text/css' media='all' />
</head>
<body>
<div id="site-page">
<div id="header">
<h1 id="logo">
<a href="http://www.treework.cn">treework.cn</a>
</h1>
<h2 class="align-cenetr">阿树工作室--筛选页面教程</h2>
</div>
<div class="container content">
<?php
//1.1 获取所有province分类,将id放入 $province_id数组
$args = array(
'taxonomy'=>'province',
'orderby'=>'id',
'hide_empty'=>0
);
$province_ob = get_categories( $args );
$province_id = array();
foreach($province_ob as $province){
$province_id[] = $province->term_id;
}
//1.2 获取所有city分类,将id放入 $city_id数组
$args = array(
'taxonomy'=>'city',
'orderby'=>'id',
'hide_empty'=>0
);
$city_ob = get_categories( $args );
$city_id = array();
foreach($city_ob as $city){
$city_id[] = $city->term_id;
}
//1.3 获取所有genre分类,将id放入 $genre_id数组
$args = array(
'taxonomy'=>'genre',
'orderby'=>'id',
'hide_empty'=>0
);
$genre_ob = get_categories( $args );
$genre_id = array();
foreach($genre_ob as $genre){
$genre_id[] = $genre->term_id;
}
//1.4 获取所有price分类,将id放入 $price_id数组
$args = array(
'taxonomy'=>'price',
'orderby'=>'id',
'hide_empty'=>0
);
$price_ob = get_categories( $args );
$price_id = array();
foreach($price_ob as $price){
$price_id[] = $price->term_id;
}
//2 参数处理
//2.1 页码
$wp_query->query_vars['paged'] > 1 ? $pagenum = $wp_query->query_vars['paged'] : $pagenum = 1;
/*2.2 从url中获取参数即url中 0_0_0_0
*将获取到的四个参数放入 $cons 数组中
*/
global $wp_query;
if( isset($wp_query->query_vars['condition']) && $wp_query->query_vars['condition']!='' ){
$condition = $wp_query->query_vars['condition'];
$conditions = explode('_',$condition);
$cons = array();
if(isset($conditions[0])){
$conditions[0] = (int)$conditions[0];
}else{
$conditions[0]=0;
}
if(isset($conditions[1])){
$conditions[1] = (int)$conditions[1];
}else{
$conditions[1]=0;
}
if(isset($conditions[2])){
$conditions[2] = (int)$conditions[2];
}else{
$conditions[2]=0;
}
if(isset($conditions[3])){
$conditions[3] = (int)$conditions[3];
}else{
$conditions[3]=0;
}
//从url中获取到的各分类法分类ID是否真实存在
if( in_array($conditions[0],$province_id) ){
$cons[0]=$conditions[0];
}else{
$cons[0]=0;
}
if( in_array($conditions[1],$city_id) ){
$cons[1]=$conditions[1];
}else{
$cons[1]=0;
}
if( in_array($conditions[2],$genre_id) ){
$cons[2]=$conditions[2];
}else{
$cons[2]=0;
}
if( in_array($conditions[3],$price_id) ){
$cons[3]=$conditions[3];
}else{
$cons[3]=0;
}
$sift_link = ashuwp_sift_link().'/'.$cons[0].'_'.$cons[1].'_'.$cons[2].'_'.$cons[3];
}else{
$cons = array(0,0,0,0);
$sift_link = ashuwp_sift_link().'/0_0_0_0';
}
?>
<div class="sift_query">
<div class="sift_cons">
<div class="sift_li">
<span>省：</span>
<a <?php if($cons[0]==0){ echo 'class="current"'; } ?> href="<?php%20echo%20ashuwp_sift_link();%20?>/0_<?php%20echo%20$cons[1];?>_<?php%20echo%20$cons[2];?>_<?php%20echo%20$cons[3];?>/">不限</a>
<?php
foreach( $province_ob as $province ){
?>
<a href="<?php%20echo%20ashuwp_sift_link();%20?>/<?php%20echo%20$province->term_id;%20?>_<?php%20echo%20$cons[1];%20?>_<?php%20echo%20$cons[2];%20?>_<?php%20echo%20$cons[3];?>" <?php if($cons[0] == $province->term_id){ echo 'class="current"'; } ?>><?php echo $province->name; ?></a>
<?php } ?>
</div>
<div class="sift_li"><span>市：</span><a <?php if($cons[1] == 0){ echo 'class="current"'; } ?> href="<?php%20echo%20ashuwp_sift_link();%20?>/<?php%20echo%20$cons[0];?>_0_<?php%20echo%20$cons[2];%20?>_<?php%20echo%20$cons[3];?>/">不限</a>
<?php
foreach( $city_ob as $city ){ ?>
<a href="<?php%20echo%20ashuwp_sift_link();%20?>/<?php%20echo%20$cons[0];%20?>_<?php%20echo%20$city->term_id;%20?>_<?php%20echo%20$cons[2];%20?>_<?php%20echo%20$cons[3];?>" <?php if($cons[1] == $city->term_id){ echo 'class="current"'; } ?>><?php echo $city->name; ?></a>
<?php } ?>
</div>
<div class="sift_li"><span>类型：</span><a <?php if($cons[2] == 0){ echo 'class="current"'; } ?> href="<?php%20echo%20ashuwp_sift_link();%20?>/<?php%20echo%20$cons[0];?>_<?php%20echo%20$cons[1];%20?>_0_<?php%20echo%20$cons[3];?>/">不限</a>
<?php
foreach( $genre_ob as $genre ){ ?>
<a href="<?php%20echo%20ashuwp_sift_link();%20?>/<?php%20echo%20$cons[0];%20?>_<?php%20echo%20$cons[1];%20?>_<?php%20echo%20$genre->term_id;%20?>_<?php%20echo%20$cons[3];?>" <?php if($cons[2] == $genre->term_id){ echo 'class="current"'; } ?>><?php echo $genre->name; ?></a>
<?php } ?>
</div>
<div class="sift_li"><span>价格：</span><a <?php if($cons[3] == 0){ echo 'class="current"'; } ?> href="<?php%20echo%20ashuwp_sift_link();%20?>/<?php%20echo%20$cons[0];?>_<?php%20echo%20$cons[1];%20?>_<?php%20echo%20$cons[2];%20?>_0/">不限</a>
<?php
foreach( $price_ob as $price ){ ?>
<a href="<?php%20echo%20ashuwp_sift_link();%20?>/<?php%20echo%20$cons[0];%20?>_<?php%20echo%20$cons[1];%20?>_<?php%20echo%20$cons[2];%20?>_<?php%20echo%20$price->term_id;%20?>" <?php if($cons[3] == $price->term_id){ echo 'class="current"'; } ?>><?php echo $price->name; ?></a>
<?php } ?>
</div>
</div>
<?php
//代码来源：学做网站论坛https://www.xuewangzhan.net/ 将获取到的参数组合为query_posts的参数
$tax_query = array(
'relation'=> 'AND',
);
//province
if( $cons[0] != 0 ){
$tax_query[] = array(
'taxonomy'=>'province',
'field'=>'id',
'terms'=>$cons[0]
);
}
//city
if( $cons[1] != 0 ){
$tax_query[] = array(
'taxonomy'=>'city',
'field'=>'id',
'terms'=>$cons[1]
);
}
//genre
if( $cons[2] != 0 ){
$tax_query[] = array(
'taxonomy'=>'genre',
'field'=>'id',
'terms'=>$cons[2]
);
}
//price
if( $cons[3] != 0 ){
$tax_query[] = array(
'taxonomy'=>'price',
'field'=>'id',
'terms'=>$cons[3]
);
}
$args = array(
'paged' => $pagenum,
'tax_query'=> $tax_query
);
global $ashuwp_query;
$ashuwp_query = new WP_Query( $args );
?>
<div class="query_count">共找到<?php echo $ashuwp_query->found_posts;?>个符合条件的内容</div>
</div>
<?php
if($ashuwp_query->have_posts()) : ?>
<div id="post_list">
<?php while($ashuwp_query->have_posts()) : $ashuwp_query->the_post(); ?>
<div class="post">
<a href="<?php%20the_permalink();?>"><?php the_title();?></a>
</div>
<?php endwhile;?>
</div>
<?php endif; ?>
<div id="ashuwp_page">
<?php
$pagination = paginate_links( array(
'base' => $links.'/page/%#%',
'format' => '/page/%#%',
'prev_text' => '上一页',
'next_text' => '下一页',
'total' => $ashuwp_query->max_num_pages,
'current' => $pagenum
) );
if ( $pagination ) {
echo $pagination;
}
?>
</div>
</div>
</div>
<div id="footer">
<div class="container">
<p>网站底部</p>
</div>
</div>
</body>
</html>
这样，wordpress 网站多条件筛选功能就制作好了。

示例下载

下载的文件为一个极简单的主题，效果预览步骤：文章源自菜鸟学院-https://www.cainiaoxueyuan.com/cms/16945.html

1.下面提供了拥有这种功能的简单的WORDPRESS 主题，下载主题并安装，并设置好伪静态文章源自菜鸟学院-https://www.cainiaoxueyuan.com/cms/16945.html

2.添加几篇文章到自定义分类法中文章源自菜鸟学院-https://www.cainiaoxueyuan.com/cms/16945.html

3.直接访问筛选页面的url，比如：URL/sift 或者URL/sift/0_1_1_0等等。文章源自菜鸟学院-https://www.cainiaoxueyuan.com/cms/16945.html

主题下载：https://pan.baidu.com/s/1a8_XxNy7B3HUA1ji84g_dA文章源自菜鸟学院-https://www.cainiaoxueyuan.com/cms/16945.html

纯代码wordpress 网站多条件筛选功能制作

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