我是新手& &;date/time/PHP这些东西真让我头疼。
1)如何使用WP Post Status Transitions来注册准确的日期& &;post状态变化的时间(让我们命名为valueX)?
2)现在我从我的主题选项(valueY)带来其他价值-它要么是一个时期(例如30天)或日期&时间
3)如何计算valueX和valueY得到valueZ ->那是日期&当帖子更改草稿或删除自己的时候!
这最终应该如何工作:
- 我在主题选项中有2个输入，1是草稿生命典当，1是发布后生命典当(输入是int -值是分钟或小时)
- 如果你发布帖子，它会保存这个事件的日期和时间。
- 将主题选项值(发布后生命典当int)添加到该时间，结果是发布更改草案的日期
- 如果时间到了，把post改为draft(节省时间)
- 添加主题选项值(draft lifespawn int)到该时间，结果是草案被删除的日期
- 如果时机成熟，请删除草案
听起来很合乎逻辑，但是我没有足够的技能来做这件事。
我的代码:注意:
- 我把它分成2部分，以便于阅读-第一个是发布的帖子草案和第二个代码是草稿要删除。每一步都有注释。
- 逻辑是，如果你编辑发布的帖子，它不应该重置定时器如果你在任何时候把post改为draft，它就会开始draft
- 这似乎太长太复杂了…这就是为什么我没有首先添加它。我相信这件事会容易得多方式。
- 我使用WP发布时间和编辑时间，因为我不知道如何节省时间,使用WP Post Status Transitions将该特定时间的日期转换为分离值。
PUBLISH -> DRAFT
if ( !function_exists('tt_icon_time_left') ) {
function tt_icon_time_left() {
//Set Timezone To Local
date_default_timezone_set('Europe/London');
// Check post status
if ( get_post_status($post->ID) == "publish" ) {
//Get Property Publish Date
$time_post_published = get_the_time( 'H:i:s d.m.Y' );
// Get Active Post Expiration Value From Theme Options
global $theme_option;
$post_time_integer = $theme_option['post-time-left'];
// Get Active Post Expiration Value From Meta
$single_post_time_left = get_post_meta( get_the_ID(), 'post_time_left', true );
// Decide If Theme Options Or Meta Active Post Expiration Value
if ( $single_post_time_left <= 0 && $post_time_integer <= 0 ) {
$post_time = 0;
}
else if ( $single_post_time_left < $post_time_integer && $single_post_time_left > 0 || $single_post_time_left > $post_time_integer ) {
$post_time = $single_post_time_left;
}
else {
$post_time = $post_time_integer;
}
// Active Post Expiration Value To Seconds
$post_time_seconds = $post_time * 86400;
// Active Post Age In Seconds
$active_post_age = strtotime($time_post_published);
$active_post_age = time() - $active_post_age;
// Calculate Active Post Expiration Date
$post_expiration_time = date( 'H:i:s d.m.Y' ,strtotime( $time_post_published ) + $post_time_seconds );
// Show Icon And Time Left Until Active Post Changes To Draft In Tooltip ONLY SHOWN IN SUBMIT LISTING
if ( $post_time > 0 && $active_post_age <= $post_time_seconds ) {
global $post;
if ( is_page_template( 'template-post-submit-listing.php' ) ) {
return '<i class="fa fa-clock-o" data-toggle="tooltip" title="' . __( 'Post expires on ' . $post_expiration_time, 'tt' ) . '"></i>';
}
else {
return false;
}
}
DRAFT -> DELETE
// Change Active Post To Draft If Time Is Up
else if ( $post_time > 0 && $active_post_age > $post_time_seconds ) {
$postt['post_status'] = 'draft';
wp_update_post($post);
}
else {
return false;
}
}
// Chech post status
else if ( get_post_status($post->ID) == "draft" ) {
$time_post_published = $publish_time;
// Get Draft Expiration Value From Theme Options
global $theme_option;
$draft_time_integer = $theme_option['draft-time-left'];
// Get Draft Expiration Value From Meta
$single_draft_time_left = get_post_meta( get_the_ID(), 'draft_time_left', true );
// Decide If Theme Options Or Meta Draft Expiration Value
if ( $single_draft_time_left <= 0 && $draft_time_integer <= 0 ) {
$draft_time = 0;
}
else if ( $single_draft_time_left < $draft_time_integer && $single_draft_time_left > 0 || $single_draft_time_left > $draft_time_integer ) {
$draft_time = $single_draft_time_left;
}
else {
$draft_time = $draft_time_integer;
}
// Draft Expiration Value To Seconds
$draft_time_seconds = $draft_time * 86400;
// Draft Age In Seconds
$draft_age = strtotime($time_property_modified);
$draft_age = time() - $draft_age;
// Calculate Draft Expiration Date
$draft_expiration_time = date( 'H:i:s d.m.Y' ,strtotime( $time_property_modified ) + $draft_time_seconds );
// Show Icon And Time Left Until Draft Gets Deleted In Tooltip ONLY IN SUBMIT LISTING
if ( $draft_time && $draft_age <= $draft_time_seconds ) {
global $post;
if ( is_page_template( 'template-property-submit-listing.php' ) ) {
return '<i class="fa fa-clock-o" data-toggle="tooltip" title="' . __( 'Property gets deleted on ' . $draft_expiration_time , 'tt' ) . '"></i>';
}
else {
return false;
}
}
// Delete Draft If Time Is Up
else if( $draft_time && $draft_age > $draft_time_seconds ) {
// I got this
}
}
else {
return false;
}
}
}
1)如何使用WP Post Status Transitions来注册准确的日期&时间post状态更改(让我们将其命名为valueX)?
在我看来，处理这个问题的更好的方法不是使用Post Transition状态钩子，而是使用Wordpress Cron——因为当管理员要更改Post状态时，这些钩子将被调用。我们将只使用一个Post Transition Status来注册第一次发布的在名为firstPublishTime:
add_action('transition_post_status', 'first_publish_time_register', 10, 3);
function first_publish_time_register($new, $old, $post) {
if ($new == 'publish' && $old != 'publish' && $post->post_type == 'post') { // change this to whatever post type you like
$firstPublishTime = get_post_meta($post->ID, 'firstPublishTime', true);
if(empty($firstPublishTime)) {
// First time the post is publish, register the time
add_post_meta($post->ID, 'firstPublishTime', strftime('%F %T'), true);
}
}
}
2)现在我把其他值从我的主题选项(valueY) -它是一段时间(如30天)或日期时间
对于下一部分，我将考虑您有两个主题选项，两个周期:一个用于"发布到草案"延迟，名为your_theme_option1，另一个用于"草案到删除延迟"，名为your_theme_option2;YY-MM-DD-HH-MM-SS格式。例如，00-00-30-00-00-00表示30天，00-01-00-00-00-00表示一个月，等等。
3)如何用valueX和valueY计算得到valueZ ->这就是日期& &;时间当帖子删除自己!
这就是乐趣所在。我们将注册一个每小时执行一次的WP Cron (请注意，它不是服务器Cron，如果在小时内没有人访问您的网站，则不会被处理)。下面的代码将每小时执行一次cron_postStatus()函数:
register_activation_hook(__FILE__, 'cron_postStatus_activation');
add_action('postStatus_event', 'cron_postStatus');
function cron_postStatus_activation() {
wp_schedule_event(time(), 'hourly', 'postStatus_event');
}
现在是最重要的部分:
function cron_postStatus() {
// Get the theme options
$published_to_draft_delay = get_option('your_theme_option1');
$draft_to_deleted_delay = get_option('your_theme_option2');
if(!$published_to_draft_delay || !$draft_to_deleted_delay) {
return new WP_Error('broke', __('Theme options unavailable'));
}
$published_to_draft_delay = explode('-', $published_to_draft_delay);
$draft_to_deleted_delay = explode('-', $draft_to_deleted_delay);
$published_to_draft_delay = new DateInterval(
'P'.$published_to_draft_delay[0].'Y'.
$published_to_draft_delay[1].'M'.
$published_to_draft_delay[2].'D'.
'T'.$published_to_draft_delay[3].'H'.
$published_to_draft_delay[4].'M'.
$published_to_draft_delay[5].'S'
);
$draft_to_deleted_delay = new DateInterval(
'P'.$draft_to_deleted_delay[0].'Y'.
$draft_to_deleted_delay[1].'M'.
$draft_to_deleted_delay[2].'D'.
'T'.$draft_to_deleted_delay[3].'H'.
$draft_to_deleted_delay[4].'M'.
$draft_to_deleted_delay[5].'S'
);
$now = new DateTime();
// Get all the unpublished posts
$unpublished_posts = new WP_Query(array(
'posts_per_page' => -1,
'post_type' => 'post', // change this to whatever post type you like
'meta_key' => 'expirationDate',
'post_status' => 'draft'
));
while($unpublished_posts->have_posts()) {
$unpublished_posts->the_post();
$expirationDate = get_post_meta(get_the_ID(), 'expirationDate', true);
if(!empty($expirationDate)) {
// Date comparison
$dt = new DateTime($expirationDate);
$dt->add($draft_to_deleted_delay);
if($dt > $now) {
// Expiration date reached, unpublish the post
wp_delete_post(get_the_ID(), true);
}
}
}
// Get all the published posts
$published_posts = new WP_Query(array(
'posts_per_page' => -1,
'post_type' => 'post', // change this to whatever post type you like
'meta_key' => 'firstPublishTime'
));
while($published_posts->have_posts()) {
$published_posts->the_post();
$first_publish = get_post_meta(get_the_ID(), 'firstPublishTime', true);
if(!empty($first_publish)) {
// Date comparison
$dt = new DateTime($first_publish);
$dt->add($published_to_draft_delay);
if($dt > $now) {
// Expiration date reached, unpublish the post
wp_transition_post_status('draft', 'publish', $published_posts->post);
add_post_meta($post->ID, 'expirationDate', strftime('%F %T'), true);
}
}
}
wp_reset_postdata();
}
在这里，我决定使用DateInterval，以便轻松地操作截止日期。首先，我们从wp_options获得截止日期选项，在DateInterval对象中构建它们，然后获得当前时间。然后我们将执行两个查询，一个用于草稿，另一个用于已发布的帖子。对于草稿，我们检查是否有expirationDate元值，如果有并且我们达到了删除时间，我们从数据库中删除该帖子。对于已发布的帖子，如果达到截止日期，我们将状态更改为草稿，并添加一个名为expirationDate的自定义值—这是为了区分cron和管理的"发布到草稿"更改。
请注意这是一个未经测试的代码
更新下面是一个函数，你可以使用它来获取过期时间:
function getExpirationInfos($post) {
// Get all informations
$first_publish = get_post_meta($post->ID, 'firstPublishTime', true);
$expirationDate = get_post_meta($post->ID, 'expirationDate', true);
if(empty($first_publish)) {
return '';
}
$published_to_draft_delay = get_option('your_theme_option1');
$draft_to_deleted_delay = get_option('your_theme_option2')
$published_to_draft_delay = explode('-', $published_to_draft_delay);
$draft_to_deleted_delay = explode('-', $draft_to_deleted_delay);
$published_to_draft_delay = new DateInterval(
'P'.$published_to_draft_delay[0].'Y'.
$published_to_draft_delay[1].'M'.
$published_to_draft_delay[2].'D'.
'T'.$published_to_draft_delay[3].'H'.
$published_to_draft_delay[4].'M'.
$published_to_draft_delay[5].'S'
);
$draft_to_deleted_delay = new DateInterval(
'P'.$draft_to_deleted_delay[0].'Y'.
$draft_to_deleted_delay[1].'M'.
$draft_to_deleted_delay[2].'D'.
'T'.$draft_to_deleted_delay[3].'H'.
$draft_to_deleted_delay[4].'M'.
$draft_to_deleted_delay[5].'S'
);
$now = new DateTime();
// Calculate time left
if($post->post_status == 'publish') {
$dt = new DateTime($first_publish);
$dt->add($published_to_draft_delay);
} else {
if(empty($expirationDate)) {
return '';
}
$dt = new DateTime($expirationDate);
$dt->add($draft_to_deleted_delay);
}
$et = date_diff($dt, $now);
$expirationTimeString = (($et->y > 0) ? $et->format('y') . ' years, ' : '') .
(($et->m > 0) ? $et->format('y') . ' months, ' : '') .
(($et->d > 0) ? $et->format('m') . ' days, ' : '') .
(($et->h > 0) ? $et->format('h') . ' hours, ' : '') .
(($et->i > 0) ? $et->format('i') . ' minutes, ' : '') .
(($et->s > 0) ? $et->format('s') . ' seconds, ' : '');
$expirationTimeString = substr($expirationTimeString, 0, -2);
// Return HTML
return '<i class="fa fa-clock-o" data-toggle="tooltip" title="' . __( 'Property gets deleted on', 'tt' ) . ' ' . $expirationTimeString . '"></i>';
}
然后在模板中执行echo getExpirationInfos($post);来显示截止日期