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<?php
namespace Timber;
use Timber\Core;
use Timber\URLHelper;
/**
* The TimberArchives class is used to generate a menu based on the date archives of your posts. The [Nieman Foundation News site](http://nieman.harvard.edu/news/) has an example of how the output can be used in a real site ([screenshot](https://cloud.githubusercontent.com/assets/1298086/9610076/3cdca596-50a5-11e5-82fd-acb74c09c482.png)).
*
* @example
* ```php
* $context['archives'] = new TimberArchives( $args );
* ```
* ```twig
* <ul>
* {% for item in archives.items %}
* <li><a href="{{item.link}}">{{item.name}}</a></li>
* {% for child in item.children %}
* <li class="child"><a href="{{child.link}}">{{child.name}}</a></li>
* {% endfor %}
* {% endfor %}
* </ul>
* ```
* ```html
* <ul>
* <li>2015</li>
* <li class="child">May</li>
* <li class="child">April</li>
* <li class="child">March</li>
* <li class="child">February</li>
* <li class="child">January</li>
* <li>2014</li>
* <li class="child">December</li>
* <li class="child">November</li>
* <li class="child">October</li>
* </ul>
* ```
*/
class Archives extends Core {
public $base = '';
/**
* @api
* @var array the items of the archives to iterate through and markup for your page
*/
public $items;
/**
* @api
* @param $args array of arguments {
* @type bool show_year => false
* @type string
* @type string type => 'monthly-nested'
* @type int limit => -1
* @type bool show_post_count => false
* @type string order => 'DESC'
* @type string post_type => 'post'
* @type bool show_year => false
* @type bool nested => false
* }
* @param string $base any additional paths that need to be prepended to the URLs that are generated, for example: "tags"
*/
public function __construct( $args = null, $base = '' ) {
$this->init($args, $base);
}
/**
* @internal
* @param array|string $args
* @param string $base
*/
public function init( $args = null, $base = '' ) {
$this->base = $base;
$this->items = $this->get_items($args);
}
/**
* @internal
* @param string $url
* @param string $text
* @return mixed
*/
protected function get_archives_link( $url, $text, $post_count = 0 ) {
$ret = array();
$ret['text'] = $ret['title'] = $ret['name'] = wptexturize($text);
$ret['url'] = $ret['link'] = esc_url(URLHelper::prepend_to_url($url, $this->base));
if ($post_count) {
$ret['post_count'] = (int) $post_count;
}
return $ret;
}
/**
* @internal
* @param array $args
* @param string $last_changed
* @param string $join
* @param string $where
* @param string $order
* @param string $limit
* @return array
*/
protected function get_items_yearly( $args, $last_changed, $join, $where, $order, $limit ) {
global $wpdb;
$output = array();
$query = "SELECT YEAR(post_date) AS `year`, count(ID) as posts FROM {$wpdb->posts} $join $where GROUP BY YEAR(post_date) ORDER BY post_date $order $limit";
$key = md5($query);
$key = "wp_get_archives:$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 ) {
$url = get_year_link($result->year);
$text = sprintf('%d', $result->year);
$output[] = $this->get_archives_link($url, $text, $result->posts);
}
}
return $output;
}
/**
* @internal
* @param array|string $args
* @param string $last_changed
* @param string $join
* @param string $where
* @param string $order
* @param string $limit
* @param bool $nested
* @return array
*/
protected function get_items_monthly( $args, $last_changed, $join, $where, $order, $limit = '', $nested = true ) {
global $wpdb, $wp_locale;
$output = array();
$defaults = array(
'show_year' => false,
);
$r = wp_parse_args($args, $defaults);
$show_year = $r['show_year'];
//will need to specify which year we're looking for
$query = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, count(ID) as posts "
. "FROM $wpdb->posts $join $where GROUP BY YEAR(post_date), MONTH(post_date) "
. "ORDER BY post_date $order $limit";
$key = md5($query);
$key = "wp_get_archives:$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 ) {
$url = get_month_link($result->year, $result->month);
if ( $show_year && !$nested ) {
$text = sprintf(__('%1$s %2$d'), $wp_locale->get_month($result->month), $result->year);
} else {
$text = sprintf(__('%1$s'), $wp_locale->get_month($result->month));
}
if ( $nested ) {
$output[$result->year][] = $this->get_archives_link($url, $text, $result->posts);
} else {
$output[] = $this->get_archives_link($url, $text, $result->posts);
}
}
}
if ( $nested ) {
$out2 = array();
foreach ( $output as $year => $months ) {
$out2[] = array('name' => $year, 'children' => $months, 'post_count' => array_sum(array_column($months, 'post_count')));
}
return $out2;
}
return $output;
}
/**
* @api
* @param array|string $args
* @return array|string
*/
public function get_items( $args = null ) {
global $wpdb;
$defaults = array(
'type' => 'monthly-nested',
'limit' => '',
'show_post_count' => false,
'order' => 'DESC',
'post_type' => 'post',
'show_year' => false,
'nested' => false
);
$args = wp_parse_args($args, $defaults);
$post_type = $args['post_type'];
$order = $args['order'];
$nested = $args['nested'];
$type = $args['type'];
$limit = '';
if ( $type == 'yearlymonthly' || $type == 'yearmonth' ) {
$type = 'monthly-nested';
}
if ( $type == 'monthly-nested' ) {
$nested = true;
}
if ( !empty($args['limit']) ) {
$limit = absint($args['limit']);
$limit = ' LIMIT '.$limit;
}
$order = strtoupper($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');
}
$where = $wpdb->prepare('WHERE post_type = "%s" AND post_status = "publish"', $post_type);
$where = apply_filters('getarchives_where', $where, $args);
$join = apply_filters('getarchives_join', '', $args);
$output = array();
$last_changed = wp_cache_get('last_changed', 'posts');
if ( !$last_changed ) {
$last_changed = microtime();
wp_cache_set('last_changed', $last_changed, 'posts');
}
if ( 'monthly' == $type ) {
$output = $this->get_items_monthly($args, $last_changed, $join, $where, $order, $limit, $nested);
} elseif ( 'yearly' == $type ) {
$output = $this->get_items_yearly($args, $last_changed, $join, $where, $order, $limit);
} elseif ( 'monthly-nested' == $type ) {
$output = $this->get_items_monthly($args, $last_changed, $join, $where, $order, $limit);
} elseif ( 'daily' == $type ) {
$query = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, DAYOFMONTH(post_date) AS `dayofmonth`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date), MONTH(post_date), DAYOFMONTH(post_date) ORDER BY post_date $order $limit";
$key = md5($query);
$key = "wp_get_archives:$key:$last_changed";
if ( !$results = wp_cache_get($key, 'posts') ) {
$results = $wpdb->get_results($query);
$cache = array();
$cache[$key] = $results;
wp_cache_set($key, $results, 'posts');
}
if ( $results ) {
foreach ( (array) $results as $result ) {
$url = get_day_link($result->year, $result->month, $result->dayofmonth);
$date = sprintf('%1$d-%2$02d-%3$02d 00:00:00', $result->year, $result->month, $result->dayofmonth);
$text = mysql2date($archive_day_date_format, $date);
$output[] = $this->get_archives_link($url, $text, $result->posts);
}
}
} elseif ( 'weekly' == $type ) {
$week = _wp_mysql_week('`post_date`');
$query = "SELECT DISTINCT $week AS `week`, YEAR( `post_date` ) AS `yr`, DATE_FORMAT( `post_date`, '%Y-%m-%d' ) AS `yyyymmdd`, "
. "count( `ID` ) AS `posts` FROM `$wpdb->posts` $join $where GROUP BY $week, YEAR( `post_date` ) ORDER BY `post_date` $order $limit";
$key = md5($query);
$key = "wp_get_archives:$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 ) {
foreach ( (array) $results as $result ) {
if ( $result->week != $arc_w_last ) {
$arc_year = $result->yr;
$arc_w_last = $result->week;
$arc_week = get_weekstartend($result->yyyymmdd, get_option('start_of_week'));
$arc_week_start = date_i18n($archive_week_start_date_format, $arc_week['start']);
$arc_week_end = date_i18n($archive_week_end_date_format, $arc_week['end']);
$url = sprintf('%1$s/%2$s%3$sm%4$s%5$s%6$sw%7$s%8$d', home_url(), '', '?', '=', $arc_year, '&', '=', $result->week);
$text = $arc_week_start.$archive_week_separator.$arc_week_end;
$output[] = $this->get_archives_link($url, $text, $result->posts);
}
}
}
} elseif ( 'postbypost' == $type || 'alpha' == $type ) {
$orderby = 'alpha' == $type ? 'post_title ASC ' : 'post_date DESC ';
$query = "SELECT * FROM $wpdb->posts $join $where ORDER BY $orderby $limit";
$key = md5($query);
$key = "wp_get_archives:$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->post_date != '0000-00-00 00:00:00' ) {
$url = get_permalink($result);
$text = $result->ID;
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));
}
$output[] = $this->get_archives_link($url, $text);
}
}
}
}
return $output;
}
}
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