Question

更新的 最终代码在这里。我觉得它很有效。

＆＃13;

<?php 
	                    $my_query = new WP_Query($args_places_cafe);
	                    $locations = array();
						if ($my_query->have_posts()) { ?>                
							<div class="yelp_bussines_wrapper"><div class="yelp_icon"><i class="icon-paw"></i></div> 
							<h4 class="yelp_category">Cafe</h4>							
						<?php while ($my_query->have_posts()):$my_query->the_post();
							
							$locationp = get_field('place_address');           
							$lat1 = $locationp['lat'];
							$lon1 = $locationp['lng']; 
							$lat2 = $gmap_lat;
							$lon2 = $gmap_long;
							$dist = distance($lat1, $lon1, $lat2, $lon2, "K");
							$title = get_the_title();
							$locations[] = array(
								'title'    => $title,
								'dist'     => round($dist, 1)
							);
						endwhile;	
						
						usort( $locations, 'sort_locations' );

						foreach( array_slice($locations, 0, 3) AS $location ) {
							print '<div class="yelp_unit"><h5 class="yelp_unit_name">'.$location['title'].'</h5>';
                            print '<span class="yelp_unit_distance"> ('.$location['dist'].' km)</span></div>';
    						}
						}
						
						function sort_locations( $a, $b ) {
						if ( $a['dist'] == $b['dist'] ) {
						return 0;
    						}

							return ($a['dist'] < $b['dist'] ) ? -1 : 1;
						}
						wp_reset_query();	
                    	?>

＆＃13;

我试图按两种帖子类型之间的距离（坐标）命名。例如，如果您看到＆＃39;属性＆＃39;发布，它显示相关的地点＆＃39;帖子（在同一个城市）。问题是我不知道如何按距离重新订购帖子结果。

以下是对当前代码的一些解释。

两种类型的帖子都有地理数据（纬度/经度）。
$lat1和$lon1：ACF字段到位（博客文章）
$lat2和$lon2：属性中的自定义字段（自定义帖子类型）

当前代码：

// Args for Places
$args_places = array(
    'post_type'    => 'post',
    'category__in' => 168,
    'showposts'    => '3', 
    'orderby'      => 'rand',
    'tax_query'    => array(
        array(
            'taxonomy' => 'places-cities',
            'terms'    => $terms_city,
            'field'    => 'name'
        )
    )
);

/**
 * Get distance between 'Properties' and 'Places'
 */
function distance($lat1, $lon1, $lat2, $lon2, $unit)
{
    $theta = $lon1 - $lon2;
    $dist  = sin(deg2rad($lat1)) * sin(deg2rad($lat2)) +  cos(deg2rad($lat1)) * cos(deg2rad($lat2)) * cos(deg2rad($theta));
    $dist  = acos($dist);
    $dist  = rad2deg($dist);
    $miles = $dist * 60 * 1.1515;
    $unit  = strtoupper($unit);

    if ($unit == "K") {
        return ($miles * 1.609344);
    } elseif ($unit == "N") {
        return ($miles * 0.8684);
    } else {
        return $miles;
    }
}     

// Get Places
$my_query = new WP_Query($args_places);
if ($my_query->have_posts()) {                 
    while ($my_query->have_posts()) {
        $my_query->the_post();
        $location = get_field('place_address');           
        $lat1     = $location['lat'];
        $lon1     = $location['lng']; 
        $lat2     = $gmap_lat;
        $lon2     = $gmap_long;
        $dist     = distance($lat1, $lon1, $lat2, $lon2, "K");  
        get_the_title();
        echo round($dist, 1).' km';
    }               
}
wp_reset_query();

Answer 1

您无法直接使用查询执行此操作。您需要加载场所，计算距离，将位置分配给阵列，然后使用usort对阵列进行排序。

这是您的代码，适用原则。请注意，由于您没有为我们提供足够的信息来构建/测试此内容，这只是关键概念 - 您可能需要根据数据调整内容以使其正常工作等。

// Load places into a custom WP query
$my_query = new WP_Query( $args_places );
// create an array to store the locations in....
$locations = array();
// loop over the query results
if ( $my_query->have_posts() ) {                 
    while ($my_query->have_posts()):
        $my_query->the_post();                  
        $location = get_field('place_address');           
        $lat1 = $location['lat'];
        $lon1 = $location['lng']; 
        $lat2 = $gmap_lat;
        $lon2 = $gmap_long;
        $dist = distance($lat1, $lon1, $lat2, $lon2, "K");  
        $title = get_the_title();
        // load the values into the array so it's available for sorting
        $locations[] = array(
            'title'    => $title,
            'location' => $location
            'dist'     => $dist
        );
    endwhile;

    // sort the array by distance
    usort( $locations, 'sort_locations' );

    // NOW you can output the locations, as they are sorted by distance
    foreach( $locations AS $location ) {
         echo $location['title'];
         echo $location['dist'] . 'km';
         // ...etc
    }
}

// callable for usort.  Sorts the array based on the 'dist' array value
function sort_locations( $a, $b ) {
    if ( $a['dist'] == $b['dist'] ) {
        return 0;
    }

    return ($a['dist'] < $b['dist'] ) ? -1 : 1;
}

在Wordpress中按距离重新排序发布结果

1 个答案: