我在我的网站上的几个区域使用自定义WP查询，并且使用最近的WordPress 4.9.1更新，我的WP查询部分已停止运行。我知道有一种解决这个问题的方法，不涉及回滚到WordPress 4.8，但我个人不熟悉php或WP Query，知道如何解决它。
我遇到的问题不是最初加载页面时，而是使用位置，类别和字母的查询变量时。每次使用这些变量运行查询时，都不会返回任何结果。
或者完美地运行关键字查询或最大发布查询功能。
我很感激能够在下面的代码中找到问题的人的帮助。
这是我在WP Query中使用的代码：
$paged = ( get_query_var( 'paged' ) ) ? get_query_var( 'paged' ) : 1;
$category = get_query_var( 'nabc', false );
$location = get_query_var( 'nabl', false );
$keywords = get_query_var( 'nabk', false );
$alphabet = get_query_var( 'naba', false );
$maxposts = get_query_var( 'showall', 10 );
$meta_query = array(
'relation' => 'AND',
);
if( $category && strtoupper( $category ) != "AFFILIATE OR REGION" ) {
// Category / Type search
$meta_query[] = array(
'key' => 'directory_fields_%_region_or_affiliate',
'value' => $category,
'compare' => '='
);
}
if( $location && strtoupper( $location ) != "STATE/PROVINCE" ) {
// State/Location
$meta_query[] = array(
'key' => 'directory_fields_%_state',
'value' => $location,
'compare' => '='
);
}
if( $keywords ) {
// keyword search
$meta_query[] = array(
'value' => $keywords,
'compare' => 'LIKE'
);
// d( $meta_query );
}
if( $alphabet ) {
// Search by Letter
$meta_query[] = array(
'key' => 'directory_fields_%_entity_name',
'value' => $alphabet,
'compare' => 'BETWEEN'
);
}
// Get all the categories
$categories = array();
global $wpdb;
$list = $wpdb->get_results( 'SELECT meta_value FROM ' . $wpdb-
>postmeta . ' WHERE meta_key LIKE
"directory_fields_%_region_or_affiliate" GROUP BY meta_value' );
foreach( $list as $l )
{
if( $l->meta_value )
$categories[] = $l->meta_value;
}
// Get all the States
$states = array();
$list = $wpdb->get_results( 'SELECT meta_value FROM ' . $wpdb-
>postmeta . ' WHERE meta_key LIKE "directory_fields_%_state" GROUP BY
meta_value' );
foreach( $list as $l )
{
if( $l->meta_value )
$states[] = $l->meta_value;
}
?>
<?php get_header(); ?>
<?php $heroImage = get_field( 'hero_image' ); ?>
<div class="jumbotron" style="background: url( <?php echo
!empty($heroImage['url']) ? $heroImage['url'] : get_field(
'nab_directory_hero_image', 'options' ); ?> ) center center no-
repeat;background-size: cover;" class="hero-image">
<h1>Directory</h1>
</div>
<!-- START FRONT CONTENT -->
<div id="content" style="position:relative;">
<div class="row mobile-padding">
<div class="container jobs-container">
<div class="col-xs-24">
<div class="filters container-fluid hidden-print">
<form class="form-inline row" action="/directory/" method="GET">
<div class="form-group col-sm-6">
<input class="form-control" type="text" name="nabk" value="<?php echo esc_html( $keywords ); ?>" placeholder="KEYWORDS">
</div>
<div class="form-group col-sm-6 col-sm-offset-1">
<select class="form-control" name="nabc">
<option>AFFILIATE OR REGION</option>
<?php foreach( $categories as $cat ): ?>
<option <?php echo $category == $cat ? 'selected' : '' ?>><?= $cat ?></option>
<?php endforeach; ?>
</select>
</div>
<div class="form-group col-sm-6 col-sm-offset-1">
<select class="form-control" name="nabl">
<option>STATE/PROVINCE</option>
<?php foreach( $states as $state ): ?>
<option <?php echo $location == $state ? 'selected' : '' ?>><?= $state ?></option>
<?php endforeach; ?>
</select>
</div>
<div class="form-group col-sm-4 text-right">
<button class="nab-btn nab-btn-blue job-filter-btn" type="submit">SEARCH</button>
</div>
</form>
</div>
<div class="alphabet-filters hidden-print">
<ul>
<?php for( $i = 'A'; $i != 'AA'; $i++ ): $j = $i ?>
<li><a href="?naba=<?= $i . "," . ++$j ?>"><?= $i ?></a></li>
<?php endfor; ?>
</ul>
</div>
<?php
global $wp_query;
$wp_query = new WP_Query( array(
'post_type' => 'directory',
'posts_per_page' => $maxposts,
'paged' => $paged, // 104 current last page
'meta_query' => $meta_query,
'orderby' => 'title',
'order' => 'ASC'
) );
// query_posts( array(
// 'post_type' => 'directory',
// 'posts_per_page' => $maxposts,
// 'paged' => $paged,
// 'meta_query' => $meta_query,
// 'orderby' => 'title',
// 'order' => 'ASC'
// ) );
?>
<?php if( $wp_query->have_posts() ): ?>
<div class="table-responsive">
<table id="directory-listing" class="table">
<thead>
<tr>
<th>CHURCH/ORGANIZATION</th>
<th>STATE/PROVINCE</th>
<th>NAME</th>
</tr>
</thead>
<tbody>
<?php while ($wp_query->have_posts()) : $wp_query->the_post(); global $post; ?>
<?php if( have_rows( 'directory_fields', $post->id ) ): ?>
<?php while ( have_rows( 'directory_fields', $post->id ) ) : the_row(); ?>
<?php if( get_row_layout() == 'directory_details' ): ?>
<tr>
<th scope="row"><a href="<?= get_the_permalink(); ?>"><?= get_sub_field( 'entity_name' ); ?></a><?= get_sub_field( 'street_address_1' ) ?><p><?= get_sub_field('street_address_2') ?></p><p><?= trim(get_sub_field( 'city' )) ?></p><p><?= get_sub_field( 'business_phone' ); ?></p></th>
<td><i class="fa fa-map-marker" aria-hidden="true"> </i><?= get_sub_field( 'state' ); ?></td>
<td><a href="<?= get_the_permalink(); ?>"><?= get_sub_field( 'person_name' ); ?></a><p><?= get_sub_field( 'person_title' ); ?></p></td>
</tr>
<?php endif; ?>
<?php endwhile; ?>
<?php endif; ?>
<?php endwhile;?>
</tbody>
</table>
</div> <!-- /.table-responsive -->
</div>
<nav class="page-navigation hidden-print" aria-label="Page navigation">
<?php nab_bootstrap_pagination(); ?>
</nav>
<div class="directory-navbar hidden-print">
<a href="?showall=-1&nabc=<?= $category ?>&nabk=<?= $keywords ?>&nabl=<?= $location ?>">
<button class="nab-btn nab-btn-blue">Show All</button>
</a>
<a href="javascript:window.print()">
<button class="nab-btn nab-btn-blue">Print</button>
</a>
</div>
<?php else: ?>
<p class="text-center">No Results Found</p>
<?php endif; ?>
<?php wp_reset_query(); ?>
</div> <!-- /.jobs-container -->
</div><!-- end .row -->
</div><!-- end #content -->
很抱歉有完整的代码页，但老实说，我不知道此代码中的问题所在。
答案 0 :(得分：0)
对于有类似问题的其他人来说，修复实际上很简单。
出于某种原因，WordPress 4.9.1将SQL数据库更改为使用“0”字符而不是“％”字符。这意味着任何使用“％”的查询现在都必须使用“0”。
对我而言，这意味着从以下方式切换：
if( $category && strtoupper( $category ) != "AFFILIATE OR REGION" ) {
// Category / Type search
$meta_query[] = array(
'key' => 'directory_fields_%_region_or_affiliate',
'value' => $category,
'compare' => '='
);
} .
为：
if( $category && strtoupper( $category ) != "AFFILIATE OR REGION" ) {
// Category / Type search
$meta_query[] = array(
'key' => 'directory_fields_0_region_or_affiliate',
'value' => $category,
'compare' => '='
);
} .
希望这对某人有帮助，但您的里程可能会有所不同。