我已经在这个问题上与WordPress争夺了好几个星期，并且无法理解。也许你们其中一个人可以帮助我...
我正在使用WordPress来管理加州大学的部门网站，并且在涉及到事件时我一直遇到同样的问题。基本上我想要一个页面存档所有活动帖子按事件日期（在帖子本身内设置），但它会一直按帖子日期发布档案。进入存档的链接结构如下：
http://www.csulb.edu/colleges/cla/news_events/?category_name=events
因此，它指定存档只显示带有类别事件的帖子，但它没有按照我想要的顺序显示它们。
有没有人有任何想法？我可以根据要求提供代码。谢谢！
答案 0 :(得分：2)
我有类似的问题。具有议程的网站，其中事件日期由ACF存储为元信息。实际上它被保存为时间戳值（不是MySQL日期类型），因为它是一个DateTime Picker字段。
我做了以下修改：
我提供代码以防万一有人感兴趣。
<强> wp_get_archives
/**
* Display archive links based on type and format.
* for events of MDV. Adapted from WP 4.4 wp-includes/general-template.php
* @return string|void String when retrieving.
*/
function wp_get_archives_mdv( $args = '' ) {
global $wpdb, $wp_locale;
$defaults = array(
'type' => 'monthly', 'limit' => '',
'format' => 'html', 'before' => '',
'after' => '', 'show_post_count' => false,
'echo' => 1, 'order' => 'DESC',
'post_type' => 'post'
);
$r = wp_parse_args( $args, $defaults );
$post_type_object = get_post_type_object( $r['post_type'] );
if ( ! is_post_type_viewable( $post_type_object ) ) {
return;
}
$r['post_type'] = $post_type_object->name;
if ( '' == $r['type'] ) {
$r['type'] = 'monthly';
}
if ( ! empty( $r['limit'] ) ) {
$r['limit'] = absint( $r['limit'] );
$r['limit'] = ' LIMIT ' . $r['limit'];
}
$order = strtoupper( $r['order'] );
if ( $order !== 'ASC' ) {
$order = 'DESC';
}
// this is what will separate dates on weekly archive links
$archive_week_separator = '–';
// over-ride general date format ? 0 = no: use the date format set in Options, 1 = yes: over-ride
$archive_date_format_over_ride = 0;
// options for daily archive (only if you over-ride the general date format)
$archive_day_date_format = 'Y/m/d';
// options for weekly archive (only if you over-ride the general date format)
$archive_week_start_date_format = 'Y/m/d';
$archive_week_end_date_format = 'Y/m/d';
if ( ! $archive_date_format_over_ride ) {
$archive_day_date_format = get_option( 'date_format' );
$archive_week_start_date_format = get_option( 'date_format' );
$archive_week_end_date_format = get_option( 'date_format' );
}
$sql_where = $wpdb->prepare( "WHERE post_type = %s AND post_status = 'publish'", $r['post_type'] );
/**
* Filter the SQL WHERE clause for retrieving archives.
*
* @since 2.2.0
*
* @param string $sql_where Portion of SQL query containing the WHERE clause.
* @param array $r An array of default arguments.
*/
$where = apply_filters( 'getarchives_events_mdv_where', $sql_where, $r ,$args);
/**
* Filter the SQL JOIN clause for retrieving archives.
*
* @since 2.2.0
*
* @param string $sql_join Portion of SQL query containing JOIN clause.
* @param array $r An array of default arguments.
*/
$join = apply_filters( 'getarchives_events_mdv_join', '', $r );
$output = '';
$last_changed = wp_cache_get( 'last_changed', 'posts' );
if ( ! $last_changed ) {
$last_changed = microtime();
wp_cache_set( 'last_changed', $last_changed, 'posts' );
}
$limit = $r['limit'];
if ( 'monthly' == $r['type'] ) {
$query = "SELECT YEAR(FROM_UNIXTIME(wp_postmeta.meta_value)) AS `year`, MONTH(FROM_UNIXTIME(wp_postmeta.meta_value)) AS `month`, count(ID) as posts";
$query = $query . " FROM $wpdb->posts $join";
$query = $query . $where . " GROUP BY YEAR(FROM_UNIXTIME(wp_postmeta.meta_value)), MONTH(FROM_UNIXTIME(wp_postmeta.meta_value))" ;
$query = $query . "ORDER BY wp_postmeta.meta_value $order $limit";
$key = md5( $query );
$key = "wp_get_archives_mdv:$key:$last_changed";
if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
$results = $wpdb->get_results( $query );
wp_cache_set( $key, $results, 'posts' );
}
if ( $results ) {
$after = $r['after'];
foreach ( (array) $results as $result ) {
$url = get_month_link( $result->year, $result->month );
if ( 'post' !== $r['post_type'] ) {
$url = add_query_arg( 'post_type', $r['post_type'], $url );
}
/* translators: 1: month name, 2: 4-digit year */
$text = sprintf( __( '%1$s %2$d' ), $wp_locale->get_month( $result->month ), $result->year );
if ( $r['show_post_count'] ) {
$r['after'] = ' (' . $result->posts . ')' . $after;
}
$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
}
}
} elseif ( 'yearly' == $r['type'] ) {
$query = "SELECT YEAR(FROM_UNIXTIME(wp_postmeta.meta_value)) AS `year`, count(ID) as posts";
$query = $query . " FROM $wpdb->posts $join";
$query = $query . $where . " GROUP BY YEAR(FROM_UNIXTIME(wp_postmeta.meta_value))" ;
$query = $query . "ORDER BY wp_postmeta.meta_value $order $limit";
$key = md5( $query );
$key = "wp_get_archives_mdv:$key:$last_changed";
if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
$results = $wpdb->get_results( $query );
wp_cache_set( $key, $results, 'posts' );
}
if ( $results ) {
$after = $r['after'];
foreach ( (array) $results as $result) {
$url = get_year_link( $result->year );
if ( 'post' !== $r['post_type'] ) {
$url = add_query_arg( 'post_type', $r['post_type'], $url );
}
$text = sprintf( '%d', $result->year );
if ( $r['show_post_count'] ) {
$r['after'] = ' (' . $result->posts . ')' . $after;
}
$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
}
}
} elseif ( 'daily' == $r['type'] ) {
$query = "SELECT YEAR(FROM_UNIXTIME(wp_postmeta.meta_value)) AS `year`, MONTH(FROM_UNIXTIME(wp_postmeta.meta_value)) AS `month`,DAYOFMONTH(FROM_UNIXTIME(wp_postmeta.meta_value)) AS `dayofmonth`, count(ID) as posts";
$query = $query . " FROM $wpdb->posts $join";
$query = $query . $where . " GROUP BY YEAR(FROM_UNIXTIME(wp_postmeta.meta_value)), MONTH(FROM_UNIXTIME(wp_postmeta.meta_value)),DAYOFMONTH(FROM_UNIXTIME(wp_postmeta.meta_value))" ;
$query = $query . "ORDER BY wp_postmeta.meta_value $order $limit";
$key = md5( $query );
$key = "wp_get_archives_mdv:$key:$last_changed";
if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
$results = $wpdb->get_results( $query );
wp_cache_set( $key, $results, 'posts' );
}
if ( $results ) {
$after = $r['after'];
foreach ( (array) $results as $result ) {
$url = get_day_link( $result->year, $result->month, $result->dayofmonth );
if ( 'post' !== $r['post_type'] ) {
$url = add_query_arg( 'post_type', $r['post_type'], $url );
}
$date = sprintf( '%1$d-%2$02d-%3$02d 00:00:00', $result->year, $result->month, $result->dayofmonth );
$text = mysql2date( $archive_day_date_format, $date );
if ( $r['show_post_count'] ) {
$r['after'] = ' (' . $result->posts . ')' . $after;
}
$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
}
}
}
elseif ( 'weekly' == $r['type'] ) {
$week = _wp_mysql_week("FROM_UNIXTIME(`meta_value`)");
$query = "SELECT DISTINCT $week AS `week`, year(FROM_UNIXTIME(wp_postmeta.meta_value) ) AS `year`, count(ID) as posts";
$query = $query . " FROM $wpdb->posts $join";
$query = $query . $where . " GROUP BY $week, year(FROM_UNIXTIME(wp_postmeta.meta_value))" ;
$query = $query . "ORDER BY wp_postmeta.meta_value $order $limit";
$key = md5( $query );
$key = "wp_get_archives_mdv:$key:$last_changed";
if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
$results = $wpdb->get_results( $query );
wp_cache_set( $key, $results, 'posts' );
}
$arc_w_last = '';
if ( $results ) {
$fechai = new DateTime();
$fechaf = new DateTime();
$after = $r['after'];
foreach ( (array) $results as $result ) {
$fechai ->setISODate($result->year, $result->week);
$fechai->setTime(0,0,0);
$fechaf ->setISODate($result->year, $result->week);
$fechaf->setTime(0,0,0);
$fechaf->modify('+7 day');
$arc_year = $result->year;
$arc_w_last = $result->week;
$arc_week_start = date_i18n( $archive_week_start_date_format, $fechai->getTimestamp () );
$arc_week_end = date_i18n( $archive_week_end_date_format,$fechaf->getTimestamp ());
$url = sprintf( '%1$s/%2$s%3$sm%4$s%5$s%6$sw%7$s%8$d', home_url(), '', '?', '=', $arc_year, '&', '=', $result->week );
if ( 'post' !== $r['post_type'] ) {
$url = add_query_arg( 'post_type', $r['post_type'], $url );
}
$text = $arc_week_start . $archive_week_separator . $arc_week_end;
if ( $r['show_post_count'] ) {
$r['after'] = ' (' . $result->posts . ')' . $after;
}
$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
}
}
}
elseif ( ( 'postbypost' == $r['type'] ) || ('alpha' == $r['type'] ) ) {
$orderby = ( 'alpha' == $r['type'] ) ? 'post_title ASC ' : 'data DESC, ID DESC ';
$query = "SELECT * FROM $wpdb->posts $join $where ORDER BY $orderby $limit";
$key = md5( $query );
$key = "wp_get_archives_mdv:$key:$last_changed";
if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
$results = $wpdb->get_results( $query );
wp_cache_set( $key, $results, 'posts' );
}
if ( $results ) {
foreach ( (array) $results as $result ) {
if ( $result->data != '0000-00-00 00:00:00' ) {
$url = get_permalink( $result );
if ( $result->post_title ) {
/** This filter is documented in wp-includes/post-template.php */
$text = strip_tags( apply_filters( 'the_title', $result->post_title, $result->ID ) );
} else {
$text = $result->ID;
}
$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
}
}
}
}
if ( $r['echo'] ) {
echo $output;
} else {
return $output;
}
}
getarchives_where和getarchives_join
function my_archives_join_filter($join) {
global $wpdb;
return $join . "LEFT JOIN $wpdb->postmeta ON ($wpdb->posts.ID = $wpdb->postmeta.post_id)";
}
add_filter('getarchives_events_mdv_join', 'my_archives_join_filter');
function my_archives_where_filter($where,$args) {
global $wpdb;
$data = current_time( 'timestamp');
$post_type = isset($args['post_type']) ? $args['post_type'] : 'agenda';
$where = "WHERE $wpdb->posts.post_type = '$post_type' AND $wpdb->posts.post_status = 'publish' AND $wpdb->postmeta.meta_key ='data' AND $wpdb->postmeta.meta_value <='$data'";
return $where ;
}
add_filter('getarchives_events_mdv_where', 'my_archives_where_filter',10,3);
get_the_date
function get_the_date_event_mdv ( $d = '', $post = null ) {
$post = get_post( $post );
if ( ! $post ) {
return false;
}
if ( '' == $d ) {
//$the_date = mysql2date( get_option( 'date_format' ), get_field('data') );
$the_date = date_i18n (get_option( 'date_format' ),get_field('data'));
} else {
//$the_date = mysql2date( $d, get_field('data') );
$the_date = date_i18n ($d,get_field('data'));
}
return $the_date;
// This filter is not implemented i MDV modification. return apply_filters( 'get_the_date', $the_date, $d, $post );
}
pre_get_posts hook
function my_pre_get_posts( $query ) {
// exit out if it's the admin or it isn't the main query
if (is_admin() || ! $query->is_main_query())
{
return $query;
}
if ( !is_admin() && $query->is_main_query() ) {
if ($query->is_search) {
$query->set('post_type', array( 'post', 'agenda', 'page' ,'professorat'));
}
}
if ( is_post_type_archive( 'agenda' ) )
{
// Set the posts_per_page to 9 = 3*num_agenda_linia
$query->set( 'posts_per_page', 3*num_agenda_linia);
if (is_date())
{
if ($query->query['w']!='' )
{
if ($query->query['year']=='')
{$year=date("Y");}
else
{$year=$query->query['year'];}
$fechai = new DateTime();
$fechai->setISODate($year, $query->query['w']);
$fechai->setTime(0,0,0);
$fechaf = new DateTime();
$fechaf->setISODate($year, $query->query['w']);
$fechaf->setTime(0,0,0);
$fechaf->modify('+7 day');
$meta_query = array(
'relation' => 'AND',
data_clause1=> array(
'key' => 'data',
'type' => 'CHAR',
'compare' => '<',
'value' => current_time( 'timestamp')
) ,
data_clause2=> array(
'key' => 'data',
'type' => 'CHAR',
'compare' => '>=',
'value' => $fechai->getTimestamp ()
),
data_clause3=> array(
'key' => 'data',
'type' => 'CHAR',
'compare' => '<',
'value' => $fechaf->getTimestamp ()
)
);
$query->set('meta_query',$meta_query);
$query->set( 'order' , 'asc' );
$query->set( 'meta_key', 'data');
$query->set( 'orderby', 'meta_value');
unset($query->query_vars['year']);
unset($query->query_vars['monthnum']);
unset($query->query_vars['day']);
unset($query->query_vars['w']);
}
elseif (is_month())
{
$meta_query = array(
'relation' => 'AND',
data_clause1=> array(
'key' => 'data',
'type' => 'CHAR',
'compare' => '<',
'value' => current_time( 'timestamp')
) ,
data_clause2=> array(
'key' => 'data',
'type' => 'CHAR',
'compare' => '>=',
'value' => mktime(0,0,0,$query->query['monthnum'],1,$query->query['year'])
),
data_clause3=> array(
'key' => 'data',
'type' => 'CHAR',
'compare' => '<',
'value' => mktime(0,0,0,$query->query['monthnum']+1,1,$query->query['year'])
)
);
$query->set('meta_query',$meta_query);
unset($query->query_vars['year']);
unset($query->query_vars['monthnum']);
unset($query->query_vars['day']);
unset($query->query_vars['w']);
}
elseif (is_year())
{
$meta_query = array(
'relation' => 'AND',
data_clause1=> array(
'key' => 'data',
'type' => 'CHAR',
'compare' => '<',
'value' => current_time( 'timestamp')
) ,
data_clause2=> array(
'key' => 'data',
'type' => 'CHAR',
'compare' => '>=',
'value' => mktime(0,0,0,1,1,$query->query['year'])
),
data_clause3=> array(
'key' => 'data',
'type' => 'CHAR',
'compare' => '<',
'value' => mktime(0,0,0,1,1,$query->query['year']+1)
)
);
$query->set('meta_query',$meta_query);
$query->set( 'order' , 'desc' );
$query->set( 'meta_key', 'data');
$query->set( 'orderby', 'meta_value');
unset($query->query_vars['year']);
unset($query->query_vars['monthnum']);
unset($query->query_vars['day']);
unset($query->query_vars['w']);
}
elseif (is_day())
{
$meta_query = array(
'relation' => 'AND',
data_clause1=> array(
'key' => 'data',
'type' => 'CHAR',
'compare' => '<',
'value' => current_time( 'timestamp')
) ,
data_clause2=> array(
'key' => 'data',
'type' => 'CHAR',
'compare' => '>=',
'value' => mktime(0,0,0,$query->query['monthnum'],$query->query['day'],$query->query['year'])
),
data_clause3=> array(
'key' => 'data',
'type' => 'CHAR',
'compare' => '<',
'value' => (mktime(0,0,0,$query->query['monthnum'],$query->query['day']+1,$query->query['year']))
)
);
$query->set('meta_query',$meta_query);
$query->set( 'order' , 'asc' );
$query->set( 'meta_key', 'data');
$query->set( 'orderby', 'meta_value');
unset($query->query_vars['year']);
unset($query->query_vars['monthnum']);
unset($query->query_vars['day']);
unset($query->query_vars['w']);
}
elseif (is_category() && $evolve_category_page_title)
{}
elseif (is_tag())
{}
}
else
{
$meta_query = array(
data_clause=> array(
'key' => 'data',
'type' => 'CHAR',
'compare' => '>=',
'value' => current_time( 'timestamp')
)
);
$query->set('meta_query',$meta_query);
$query->set( 'order' , 'asc' );
$query->set( 'meta_key', 'data');
$query->set( 'orderby', 'meta_value');
}
}
return $query;
}
再见
Zulok
答案 1 :(得分：0)
如何处理和存储EVENT DATE？
我会使用添加的过滤器查询EVENT DATE并传递排序顺序
Function query_posts
Codex：http://codex.wordpress.org/Function_Reference/query_posts
如何对archive.php进行排序
add_action( 'pre_get_posts', 'my_change_sort_order');
function my_change_sort_order($query){
if(is_archive()):
//If you wanted it for the archive of a custom post type use: is_post_type_archive( $post_type )
//Set the order ASC or DESC
$query->set( 'order', 'ASC' );
//Set the orderby
$query->set( 'orderby', 'title' );
endif;
};
从这里复制的答案：https://wordpress.stackexchange.com/questions/39817/sort-results-by-name-asc-order-on-archive-php
如果插件可以接受，您也可以尝试这样做： http://wordpress.org/plugins/archive-posts-sort-customize/
（不隶属于链接）
将来，您应该考虑发布到http://wordpress.stackoverflow.com