如何使用自定义字段（搜索功能）过滤帖子列表（在WP仪表板帖子列表中）？

Question

如何使用自定义字段（搜索功能）过滤帖子列表（在WP仪表板帖子列表中）？

- 38
- 23838 2011-05-07
尽管我在Google上搜索了很多,但我还没有找到一个非常简单的问题的答案:

我有一些带有自定义字段(即Supplier_name)的帖子.我希望能够根据此自定义字段搜索和过滤我的帖子.换句话说,在管理员帖子列表中,我想要一个搜索框(名为"供应商名称"),可以在其中键入一个值(例如" IBM"),然后单击一个搜索按钮,我返回所有具有名为" supplier_name"的定制字段的帖子,如果是,则定制字段的值为" IBM".

我该怎么做?

Despite the fact I googled a lot, I've not found the answer to a very simple question :

I have some posts with a custom field (i.e. supplier_name). I would like to be able to search and filter my posts according to this custom field. In other words, in the admin posts listing, I would like to have a search box (named "Supplier name") where I can type in a value (ex. "IBM") and then, click on a search button that will give me back all the posts that have a custom field named "supplier_name" and, if so, the value of the custom field will be "IBM".

How can I do this ?

custom-field admin customization dashboard

1 个回答

投票数

Bainternet · Answer 1 · 2011-05-07

44

2011-05-07

我为此专门编写了一个插件,却从没发布过:

在此处输入图片描述

用法:

在下拉列表中,您可以找到所有自定义字段的列表,因此只需选择要作为过滤依据的字段,然后单击过滤.如果要过滤为自定义字段的特定值,请选择该字段的名称,输入所需的值,然后单击过滤.

 <?php
/*
Plugin Name: Admin Filter BY Custom Fields
Plugin URI: http://en.bainternet.info
Description: Filter posts or pages in admin by custom fields (post meta)
Version: 1.0
Author: Bainternet
Author URI: http://en.bainternet.info
*/



add_filter( 'parse_query', 'ba_admin_posts_filter' );
add_action( 'restrict_manage_posts', 'ba_admin_posts_filter_restrict_manage_posts' );

function ba_admin_posts_filter( $query )
{
    global $pagenow;
    if ( is_admin() && $pagenow=='edit.php' && isset($_GET['ADMIN_FILTER_FIELD_NAME']) && $_GET['ADMIN_FILTER_FIELD_NAME'] != '') {
        $query->query_vars['meta_key'] = $_GET['ADMIN_FILTER_FIELD_NAME'];
    if (isset($_GET['ADMIN_FILTER_FIELD_VALUE']) && $_GET['ADMIN_FILTER_FIELD_VALUE'] != '')
        $query->query_vars['meta_value'] = $_GET['ADMIN_FILTER_FIELD_VALUE'];
    }
}

function ba_admin_posts_filter_restrict_manage_posts()
{
    global $wpdb;
    $sql = 'SELECT DISTINCT meta_key FROM '.$wpdb->postmeta.' ORDER BY 1';
    $fields = $wpdb->get_results($sql, ARRAY_N);
?>
<select name="ADMIN_FILTER_FIELD_NAME">
<option value=""><?php _e('Filter By Custom Fields', 'baapf'); ?></option>
<?php
    $current = isset($_GET['ADMIN_FILTER_FIELD_NAME'])? $_GET['ADMIN_FILTER_FIELD_NAME']:'';
    $current_v = isset($_GET['ADMIN_FILTER_FIELD_VALUE'])? $_GET['ADMIN_FILTER_FIELD_VALUE']:'';
    foreach ($fields as $field) {
        if (substr($field[0],0,1) != "_"){
        printf
            (
                '<option value="%s"%s>%s</option>',
                $field[0],
                $field[0] == $current? ' selected="selected"':'',
                $field[0]
            );
        }
    }
?>
</select> <?php _e('Value:', 'baapf'); ?><input type="TEXT" name="ADMIN_FILTER_FIELD_VALUE" value="<?php echo $current_v; ?>" />
<?php
}

I coded a plugin just for that and never got around to publish it :

enter image description here

Usage:

In the dropdown you have a list of all custom fields, so just select the field you want to filter by and click filter. if you want to filter to a specific value of a custom field then select the field's name , enter the value you want and click filter.

<?php
/*
Plugin Name: Admin Filter BY Custom Fields
Plugin URI: http://en.bainternet.info
Description: Filter posts or pages in admin by custom fields (post meta)
Version: 1.0
Author: Bainternet
Author URI: http://en.bainternet.info
*/



add_filter( 'parse_query', 'ba_admin_posts_filter' );
add_action( 'restrict_manage_posts', 'ba_admin_posts_filter_restrict_manage_posts' );

function ba_admin_posts_filter( $query )
{
    global $pagenow;
    if ( is_admin() && $pagenow=='edit.php' && isset($_GET['ADMIN_FILTER_FIELD_NAME']) && $_GET['ADMIN_FILTER_FIELD_NAME'] != '') {
        $query->query_vars['meta_key'] = $_GET['ADMIN_FILTER_FIELD_NAME'];
    if (isset($_GET['ADMIN_FILTER_FIELD_VALUE']) && $_GET['ADMIN_FILTER_FIELD_VALUE'] != '')
        $query->query_vars['meta_value'] = $_GET['ADMIN_FILTER_FIELD_VALUE'];
    }
}

function ba_admin_posts_filter_restrict_manage_posts()
{
    global $wpdb;
    $sql = 'SELECT DISTINCT meta_key FROM '.$wpdb->postmeta.' ORDER BY 1';
    $fields = $wpdb->get_results($sql, ARRAY_N);
?>
<select name="ADMIN_FILTER_FIELD_NAME">
<option value=""><?php _e('Filter By Custom Fields', 'baapf'); ?></option>
<?php
    $current = isset($_GET['ADMIN_FILTER_FIELD_NAME'])? $_GET['ADMIN_FILTER_FIELD_NAME']:'';
    $current_v = isset($_GET['ADMIN_FILTER_FIELD_VALUE'])? $_GET['ADMIN_FILTER_FIELD_VALUE']:'';
    foreach ($fields as $field) {
        if (substr($field[0],0,1) != "_"){
        printf
            (
                '<option value="%s"%s>%s</option>',
                $field[0],
                $field[0] == $current? ' selected="selected"':'',
                $field[0]
            );
        }
    }
?>
</select> <?php _e('Value:', 'baapf'); ?><input type="TEXT" name="ADMIN_FILTER_FIELD_VALUE" value="<?php echo $current_v; ?>" />
<?php
}

为什么不为您的选择框使用助手功能?即.替换`$field [0]==$ current?'selected=" selected"':'', 与`selected($field [0]==$ current,true,false),`... :)

Why not use the helper function for your selection box? ie. replace `$field[0] == $current? ' selected="selected"':'', ` with `selected( $field[0] == $current, true, false ),` ... :)
- 7
- 2011-07-18
- t31os
这个答案不再起作用.

this answer doesn't work anymore.
- 0
- 2018-07-09
- Kir Mazur
有没有办法使其在最新版本的WordPress中工作?

Is there a way to make it work in newest versions of WordPress?
- 0
- 2018-11-27
- nakkeru