Viewing file:  widget-calendar.php (8.77 KB) -rw-r--r--
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<?php
if ( ! class_exists( 'WP_Widget_Calendar' ) ) {
require_once ABSPATH . '/wp-includes/default-widgets.php';
}
/**
* obliged to rewrite the whole functionnality as there is no filter on sql queries and only a filter on final output
* code base last checked with WP 4.4.2
* a request for making a filter on sql queries exists: http://core.trac.wordpress.org/ticket/15202
* method used in 0.4.x: use of the get_calendar filter and overwrite the output of get_calendar function -> not very efficient (add 4 to 5 sql queries)
* method used since 0.5: remove the WP widget and replace it by our own -> our language filter will not work if get_calendar is called directly by a theme
*
* @since 0.5
*/
class PLL_Widget_Calendar extends WP_Widget_Calendar {
/**
* displays the widget
* modified version of the parent function to call our own get_calendar function
*
* @since 0.5
*
* @param array $args Display arguments including before_title, after_title, before_widget, and after_widget.
* @param array $instance The settings for the particular instance of the widget
*/
function widget( $args, $instance ) {
/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
$title = apply_filters( 'widget_title', empty( $instance['title'] ) ? ' ' : $instance['title'], $instance, $this->id_base );
echo $args['before_widget'];
if ( $title ) {
echo $args['before_title'] . $title . $args['after_title'];
}
echo '<div id="calendar_wrap">';
empty( PLL()->curlang ) ? get_calendar() : self::get_calendar(); #modified#
echo '</div>';
echo $args['after_widget'];
}
/**
* modified version of WP get_calendar function to filter the query
*
* @since 0.5
*
* @param bool $initial Optional, default is true. Use initial calendar names.
* @param bool $echo Optional, default is true. Set to false for return.
* @return string|null String when retrieving, null when displaying.
*/
static function get_calendar( $initial = true, $echo = true ) {
global $wpdb, $m, $monthnum, $year, $wp_locale, $posts;
$join_clause = PLL()->model->post->join_clause(); #added#
$where_clause = PLL()->model->post->where_clause( PLL()->curlang ); #added#
$key = md5( PLL()->curlang->slug . $m . $monthnum . $year ); #modified#
$cache = wp_cache_get( 'get_calendar', 'calendar' );
if ( $cache && is_array( $cache ) && isset( $cache[ $key ] ) ) {
/** This filter is documented in wp-includes/general-template.php */
$output = apply_filters( 'get_calendar', $cache[ $key ] );
if ( $echo ) {
echo $output;
return;
}
return $output;
}
if ( ! is_array( $cache ) ) {
$cache = array();
}
// Quick check. If we have no posts at all, abort!
if ( ! $posts ) {
$gotsome = $wpdb->get_var("SELECT 1 as test FROM $wpdb->posts WHERE post_type = 'post' AND post_status = 'publish' LIMIT 1");
if ( ! $gotsome ) {
$cache[ $key ] = '';
wp_cache_set( 'get_calendar', $cache, 'calendar' );
return;
}
}
if ( isset( $_GET['w'] ) ) {
$w = (int) $_GET['w'];
}
// week_begins = 0 stands for Sunday
$week_begins = (int) get_option( 'start_of_week' );
$ts = current_time( 'timestamp' );
// Let's figure out when we are
if ( ! empty( $monthnum ) && ! empty( $year ) ) {
$thismonth = zeroise( intval( $monthnum ), 2 );
$thisyear = (int) $year;
} elseif ( ! empty( $w ) ) {
// We need to get the month from MySQL
$thisyear = (int) substr( $m, 0, 4 );
//it seems MySQL's weeks disagree with PHP's
$d = ( ( $w - 1 ) * 7 ) + 6;
$thismonth = $wpdb->get_var("SELECT DATE_FORMAT((DATE_ADD('{$thisyear}0101', INTERVAL $d DAY) ), '%m')");
} elseif ( ! empty( $m ) ) {
$thisyear = (int) substr( $m, 0, 4 );
if ( strlen( $m ) < 6 ) {
$thismonth = '01';
} else {
$thismonth = zeroise( (int) substr( $m, 4, 2 ), 2 );
}
} else {
$thisyear = gmdate( 'Y', $ts );
$thismonth = gmdate( 'm', $ts );
}
$unixmonth = mktime( 0, 0 , 0, $thismonth, 1, $thisyear );
$last_day = date( 't', $unixmonth );
// Get the next and previous month and year with at least one post
$previous = $wpdb->get_row( "SELECT MONTH( post_date ) AS month, YEAR( post_date ) AS year
FROM $wpdb->posts $join_clause
WHERE post_date < '$thisyear-$thismonth-01'
AND post_type = 'post' AND post_status = 'publish' $where_clause
ORDER BY post_date DESC
LIMIT 1" ); #modified#
$next = $wpdb->get_row( "SELECT MONTH( post_date ) AS month, YEAR( post_date ) AS year
FROM $wpdb->posts $join_clause
WHERE post_date > '$thisyear-$thismonth-{$last_day} 23:59:59'
AND post_type = 'post' AND post_status = 'publish' $where_clause
ORDER BY post_date ASC
LIMIT 1" ); #modified#
/* translators: Calendar caption: 1: month name, 2: 4-digit year */
$calendar_caption = _x( '%1$s %2$s', 'calendar caption' );
$calendar_output = '<table id="wp-calendar">
<caption>' . sprintf(
$calendar_caption,
$wp_locale->get_month( $thismonth ),
date( 'Y', $unixmonth )
) . '</caption>
<thead>
<tr>';
$myweek = array();
for ( $wdcount = 0; $wdcount <= 6; $wdcount++ ) {
$myweek[] = $wp_locale->get_weekday( ( $wdcount + $week_begins ) % 7 );
}
foreach ( $myweek as $wd ) {
$day_name = $initial ? $wp_locale->get_weekday_initial( $wd ) : $wp_locale->get_weekday_abbrev( $wd );
$wd = esc_attr( $wd );
$calendar_output .= "\n\t\t<th scope=\"col\" title=\"$wd\">$day_name</th>";
}
$calendar_output .= '
</tr>
</thead>
<tfoot>
<tr>';
if ( $previous ) {
$calendar_output .= "\n\t\t".'<td colspan="3" id="prev"><a href="' . get_month_link( $previous->year, $previous->month ) . '">« ' .
$wp_locale->get_month_abbrev( $wp_locale->get_month( $previous->month ) ) .
'</a></td>';
} else {
$calendar_output .= "\n\t\t".'<td colspan="3" id="prev" class="pad"> </td>';
}
$calendar_output .= "\n\t\t".'<td class="pad"> </td>';
if ( $next ) {
$calendar_output .= "\n\t\t".'<td colspan="3" id="next"><a href="' . get_month_link( $next->year, $next->month ) . '">' .
$wp_locale->get_month_abbrev( $wp_locale->get_month( $next->month ) ) .
' »</a></td>';
} else {
$calendar_output .= "\n\t\t".'<td colspan="3" id="next" class="pad"> </td>';
}
$calendar_output .= '
</tr>
</tfoot>
<tbody>
<tr>';
$daywithpost = array();
// Get days with posts
$dayswithposts = $wpdb->get_results( "SELECT DISTINCT DAYOFMONTH( post_date )
FROM $wpdb->posts $join_clause
WHERE post_date >= '{$thisyear}-{$thismonth}-01 00:00:00'
AND post_type = 'post' AND post_status = 'publish' $where_clause
AND post_date <= '{$thisyear}-{$thismonth}-{$last_day} 23:59:59'", ARRAY_N ); #modified#
if ( $dayswithposts ) {
foreach ( (array) $dayswithposts as $daywith ) {
$daywithpost[] = $daywith[0];
}
}
// See how much we should pad in the beginning
$pad = calendar_week_mod( date( 'w', $unixmonth ) - $week_begins );
if ( 0 != $pad ) {
$calendar_output .= "\n\t\t".'<td colspan="'. esc_attr( $pad ) .'" class="pad"> </td>';
}
$newrow = false;
$daysinmonth = (int) date( 't', $unixmonth );
for ( $day = 1; $day <= $daysinmonth; ++$day ) {
if ( isset($newrow) && $newrow ) {
$calendar_output .= "\n\t</tr>\n\t<tr>\n\t\t";
}
$newrow = false;
if ( $day == gmdate( 'j', $ts ) &&
$thismonth == gmdate( 'm', $ts ) &&
$thisyear == gmdate( 'Y', $ts ) ) {
$calendar_output .= '<td id="today">';
} else {
$calendar_output .= '<td>';
}
if ( in_array( $day, $daywithpost ) ) {
// any posts today?
$date_format = date( _x( 'F j, Y', 'daily archives date format' ), strtotime( "{$thisyear}-{$thismonth}-{$day}" ) );
$label = sprintf( __( 'Posts published on %s' ), $date_format );
$calendar_output .= sprintf(
'<a href="%s" aria-label="%s">%s</a>',
get_day_link( $thisyear, $thismonth, $day ),
esc_attr( $label ),
$day
);
} else {
$calendar_output .= $day;
}
$calendar_output .= '</td>';
if ( 6 == calendar_week_mod( date( 'w', mktime(0, 0 , 0, $thismonth, $day, $thisyear ) ) - $week_begins ) ) {
$newrow = true;
}
}
$pad = 7 - calendar_week_mod( date( 'w', mktime( 0, 0 , 0, $thismonth, $day, $thisyear ) ) - $week_begins );
if ( $pad != 0 && $pad != 7 ) {
$calendar_output .= "\n\t\t".'<td class="pad" colspan="'. esc_attr( $pad ) .'"> </td>';
}
$calendar_output .= "\n\t</tr>\n\t</tbody>\n\t</table>";
$cache[ $key ] = $calendar_output;
wp_cache_set( 'get_calendar', $cache, 'calendar' );
if ( $echo ) {
/**
* Filter the HTML calendar output.
*
* @since 3.0.0
*
* @param string $calendar_output HTML output of the calendar.
*/
echo apply_filters( 'get_calendar', $calendar_output );
return;
}
/** This filter is documented in wp-includes/general-template.php */
return apply_filters( 'get_calendar', $calendar_output );
}
}
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