/wp-content/plugins/events-manager/classes/em-calendar.php
PHP | 381 lines | 300 code | 35 blank | 46 comment | 67 complexity | 2e64962eb5eab07e74e520622d6cb4c1 MD5 | raw file
- <?php
- class EM_Calendar extends EM_Object {
-
- function init(){
- //nothing to init anymore
- }
-
- function get( $args ){
-
- global $wpdb;
-
- $calendar_array = array();
- $calendar_array['cells'] = array();
-
- $original_args = $args;
- $args = self::get_default_search($args);
- $full = $args['full']; //For ZDE, don't delete pls
- $month = $args['month'];
- $year = $args['year'];
- $long_events = $args['long_events'];
-
- $week_starts_on_sunday = get_option('dbem_week_starts_sunday');
- $start_of_week = get_option('start_of_week');
-
- if( !(is_numeric($month) && $month <= 12 && $month > 0) ) {
- $month = date('m');
- }
- if( !( is_numeric($year) ) ){
- $year = date('Y');
- }
-
- // Get the first day of the month
- $month_start = mktime(0,0,0,$month, 1, $year);
- $calendar_array['month_start'] = $month_start;
-
- // Get friendly month name
- $month_name = date('M',$month_start);
- // Figure out which day of the week
- // the month starts on.
- $month_start_day = date('D', $month_start);
-
- switch($month_start_day){
- case "Sun": $offset = 0; break;
- case "Mon": $offset = 1; break;
- case "Tue": $offset = 2; break;
- case "Wed": $offset = 3; break;
- case "Thu": $offset = 4; break;
- case "Fri": $offset = 5; break;
- case "Sat": $offset = 6; break;
- }
- //We need to go back to the WP defined day when the week started, in case the event day is near the end
- $offset -= $start_of_week;
- if($offset<0)
- $offset += 7;
-
- // determine how many days are in the last month.
- $month_last = $month-1;
- $month_next = $month+1;
- $calendar_array['month_next'] = $month_next;
- $year_last = $year;
- $year_next = $year;
- $calendar_array['year_next'] = $year_next;
-
- if($month == 1) {
- $month_last = 12;
- $year_last = $year -1;
- }elseif($month == 12){
- $month_next = 1;
- $year_next = $year + 1;
- }
- $calendar_array['month_last'] = $month_last;
- $calendar_array['year_last'] = $year_last;
-
- $num_days_last = self::days_in_month($month_last, $year_last);
-
- // determine how many days are in the current month.
- $num_days_current = self::days_in_month($month, $year);
- // Build an array for the current days
- // in the month
- for($i = 1; $i <= $num_days_current; $i++){
- $num_days_array[] = mktime(0,0,0,$month, $i, $year);
- }
- // Build an array for the number of days
- // in last month
- for($i = 1; $i <= $num_days_last; $i++){
- $num_days_last_array[] = mktime(0,0,0,$month_last, $i, $year_last);
- }
- // If the $offset from the starting day of the
- // week happens to be Sunday, $offset would be 0,
- // so don't need an offset correction.
-
- if($offset > 0){
- $offset_correction = array_slice($num_days_last_array, -$offset, $offset);
- $new_count = array_merge($offset_correction, $num_days_array);
- $offset_count = count($offset_correction);
- } else { // The else statement is to prevent building the $offset array.
- $offset_count = 0;
- $new_count = $num_days_array;
- }
- // count how many days we have with the two
- // previous arrays merged together
- $current_num = count($new_count);
-
- // Since we will have 5 HTML table rows (TR)
- // with 7 table data entries (TD)
- // we need to fill in 35 TDs
- // so, we will have to figure out
- // how many days to appened to the end
- // of the final array to make it 35 days.
- if($current_num > 35){
- $num_weeks = 6;
- $outset = (42 - $current_num);
- } elseif($current_num < 35){
- $num_weeks = 5;
- $outset = (35 - $current_num);
- }
- if($current_num == 35){
- $num_weeks = 5;
- $outset = 0;
- }
- // Outset Correction
- for($i = 1; $i <= $outset; $i++){
- $new_count[] = mktime(0,0,0,$month_next, $i, $year_next);
- }
- // Now let's "chunk" the $all_days array
- // into weeks. Each week has 7 days
- // so we will array_chunk it into 7 days.
- $weeks = array_chunk($new_count, 7);
-
- //Get an array of arguments that don't include default valued args
- $link_args = self::get_link_args($args);
-
- $previous_url = "?ajaxCalendar=1&mo={$month_last}&yr={$year_last}&{$link_args}";
- $next_url = "?ajaxCalendar=1&mo={$month_next}&yr={$year_next}&{$link_args}";
-
- $weekdays = array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday');
- if(!empty($args['full'])) {
- if( get_option('dbem_full_calendar_abbreviated_weekdays') ) $weekdays = array('Sun','Mon','Tue','Wed','Thu','Fri','Sat');
- $day_initials_length = get_option('dbem_full_calendar_initials_length');
- } else {
- if ( get_option('dbem_small_calendar_abbreviated_weekdays') ) $weekdays = array('Sun','Mon','Tue','Wed','Thu','Fri','Sat');
- $day_initials_length = get_option('dbem_small_calendar_initials_length');
- }
-
- for( $n = 0; $n < $start_of_week; $n++ ) {
- $last_day = array_shift($weekdays);
- $weekdays[]= $last_day;
- }
-
- $days_initials_array = array();
- foreach($weekdays as $weekday) {
- $days_initials_array[] = self::translate_and_trim($weekday, $day_initials_length);
- }
-
- $calendar_array['links'] = array( 'previous_url'=>$previous_url, 'next_url'=>$next_url);
- $calendar_array['row_headers'] = $days_initials_array;
-
- // Now we break each key of the array
- // into a week and create a new table row for each
- // week with the days of that week in the table data
-
- $i = 0;
- $current_date = date('Y-m-d', current_time('timestamp'));
- $week_count = 0;
- foreach ( $weeks as $week ) {
- foreach ( $week as $d ) {
- $date = date('Y-m-d', $d);
- $calendar_array['cells'][$date] = array('date'=>$d); //set it up so we have the exact array of dates to be filled
- if ($i < $offset_count) { //if it is PREVIOUS month
- $calendar_array['cells'][$date]['type'] = 'pre';
- }
- if (($i >= $offset_count) && ($i < ($num_weeks * 7) - $outset)) { // if it is THIS month
- if ( $current_date == $date ){
- $calendar_array['cells'][$date]['type'] = 'today';
- }
- } elseif (($outset > 0)) { //if it is NEXT month
- if (($i >= ($num_weeks * 7) - $outset)) {
- $calendar_array['cells'][$date]['type'] = 'post';
- }
- }
- $i ++;
- }
- $week_count++;
- }
-
- // query the database for events in this time span
- if ($month == 1) {
- $month_pre=12;
- $month_post=2;
- $year_pre=$year-1;
- $year_post=$year;
- } elseif($month == 12) {
- $month_pre=11;
- $month_post=1;
- $year_pre=$year;
- $year_post=$year+1;
- } else {
- $month_pre=$month-1;
- $month_post=$month+1;
- $year_pre=$year;
- $year_post=$year;
- }
- $args['year'] = array($year_pre, $year_post);
- $args['month'] = array($month_pre, $month_post);
- $events = EM_Events::get($args);
-
- $event_format = get_option('dbem_full_calendar_event_format');
- $event_title_format = get_option('dbem_small_calendar_event_title_format');
- $event_title_separator_format = get_option('dbem_small_calendar_event_title_separator');
-
- $eventful_days= array();
- if($events){
- //Go through the events and slot them into the right d-m index
- foreach($events as $event) {
- $event = apply_filters('em_calendar_output_loop_start', $event);
- if( $long_events ){
- //If $long_events is set then show a date as eventful if there is an multi-day event which runs during that day
- $event_start_date = strtotime($event->start_date);
- $event_end_date = mktime(0,0,0,$month_post,date('t', $event_start_date),$year_post );
- if( $event_end_date == '' ) $event_end_date = $event_start_date;
- while( $event_start_date <= $event->end ){
- //Ensure date is within event dates, if so add to eventful days array
- $event_eventful_date = date('Y-m-d', $event_start_date);
- if( array_key_exists($event_eventful_date, $eventful_days) && is_array($eventful_days[$event_eventful_date]) ){
- $eventful_days[$event_eventful_date][] = $event;
- } else {
- $eventful_days[$event_eventful_date] = array($event);
- }
- $event_start_date += (86400); //add a day
- }
- }else{
- //Only show events on the day that they start
- if( isset($eventful_days[$event->event_start_date]) && is_array($eventful_days[$event->event_start_date]) ){
- $eventful_days[$event->event_start_date][] = $event;
- } else {
- $eventful_days[$event->event_start_date] = array($event);
- }
- }
- }
- }
- //generate a link argument string containing event search only
- $day_link_args = self::get_link_args( array_intersect_key($original_args, EM_Events::get_post_search($args, true) ));
- foreach($eventful_days as $day_key => $events) {
- if( array_key_exists($day_key, $calendar_array['cells']) ){
- //Get link title for this date
- $events_titles = array();
- foreach($events as $event) {
- if( !get_option('dbem_display_calendar_events_limit') || count($events_titles) < get_option('dbem_display_calendar_events_limit') ){
- $events_titles[] = $event->output($event_title_format);
- }else{
- $events_titles[] = get_option('dbem_display_calendar_events_limit_msg');
- break;
- }
- }
- $calendar_array['cells'][$day_key]['link_title'] = implode( $event_title_separator_format, $events_titles);
-
- //Get the link to this calendar day
- global $wp_rewrite;
- if( count($events) > 1 || !get_option('dbem_calendar_direct_links') ){
- if( get_option("dbem_events_page") > 0 ){
- $event_page_link = get_permalink(get_option("dbem_events_page")); //PAGE URI OF EM
- }else{
- if( $wp_rewrite->using_permalinks() ){
- $event_page_link = trailingslashit(home_url()).EM_POST_TYPE_EVENT_SLUG.'/'; //don't use EM_URI here, since ajax calls this before EM_URI is defined.
- }else{
- $event_page_link = trailingslashit(home_url()).'?post_type='.EM_POST_TYPE_EVENT; //don't use EM_URI here, since ajax calls this before EM_URI is defined.
- }
- }
- if( $wp_rewrite->using_permalinks() && !defined('EM_DISABLE_PERMALINKS') ){
- $calendar_array['cells'][$day_key]['link'] = trailingslashit($event_page_link).$day_key."/";
- if( !empty($day_link_args) ){
- $calendar_array['cells'][$day_key]['link'] .= '?'.$day_link_args;
- }
- }else{
- $joiner = (stristr($event_page_link, "?")) ? "&" : "?";
- $calendar_array['cells'][$day_key]['link'] = $event_page_link.$joiner."calendar_day=".$day_key;
- if( !empty($day_link_args) ){
- $calendar_array['cells'][$day_key]['link'] .= '&'.$day_link_args;
- }
- }
- }else{
- foreach($events as $EM_Event){
- $calendar_array['cells'][$day_key]['link'] = $EM_Event->get_permalink();
- }
- }
- //Add events to array
- $calendar_array['cells'][$day_key]['events'] = $events;
- }
- }
- return apply_filters('em_calendar_get',$calendar_array, $args);
- }
-
- function output($args = array(), $wrapper = true) {
- //Let month and year REQUEST override for non-JS users
- if( !empty($_REQUEST['mo']) || !empty($args['mo']) ){
- $args['month'] = ($_REQUEST['mo']) ? $_REQUEST['mo']:$args['mo'];
- }
- if( !empty($_REQUEST['yr']) || !empty($args['yr']) ){
- $args['year'] = (!empty($_REQUEST['yr'])) ? $_REQUEST['yr']:$args['yr'];
- }
- $calendar_array = self::get($args);
- $template = (!empty($args['full'])) ? 'templates/calendar-full.php':'templates/calendar-small.php';
- ob_start();
- em_locate_template($template, true, array('calendar'=>$calendar_array,'args'=>$args));
- if($wrapper){
- $calendar = '<div id="em-calendar-'.rand(100,200).'" class="em-calendar-wrapper">'.ob_get_clean().'</div>';
- }else{
- $calendar = ob_get_clean();
- }
- return apply_filters('em_calendar_output', $calendar, $args);
- }
-
-
- function days_in_month($month, $year) {
- return date('t', mktime(0,0,0,$month,1,$year));
- }
-
- function translate_and_trim($string, $length = 1) {
- if( $length > 0 ){
- if(function_exists('mb_substr')){ //fix for diacritic calendar names
- return mb_substr(__($string,'dbem'), 0, $length, 'UTF-8');
- }else{
- return substr(__($string,'dbem'), 0, $length);
- }
- }
- return __($string,'dbem');
- }
-
- /**
- * Helper function to create a link querystring from array which contains arguments with only values that aren't defuaults.
- */
- function get_link_args($args = array(), $html_entities=true){
- unset($args['month']); unset($args['year']);
- $default_args = self::get_default_search(array());
- foreach($default_args as $arg_key => $arg_value){
- if( !isset($args[$arg_key]) || $args[$arg_key] == $arg_value ){
- unset($args[$arg_key]);
- }
- }
- $qs_array = array();
- foreach($args as $key => $value){
- if(is_array($value)){
- $value = implode(',',$value);
- }
- $qs_array[] = "$key=".urlencode($value);
- }
- return ($html_entities) ? implode('&', $qs_array) : implode('&', $qs_array);
- }
-
-
- function get_default_search($array=array()){
- //These defaults aren't for db queries, but flags for what to display in calendar output
- $defaults = array(
- 'full' => 0, //Will display a full calendar with event names
- 'long_events' => 0, //Events that last longer than a day
- 'scope' => 'future',
- 'status' => 1, //approved events only
- 'town' => false,
- 'state' => false,
- 'country' => false,
- 'region' => false,
- 'blog' => get_current_blog_id(),
- 'orderby' => get_option('dbem_display_calendar_orderby'),
- 'order' => get_option('dbem_display_calendar_order')
- );
- if(is_multisite()){
- global $bp;
- if( !is_main_site() && !array_key_exists('blog',$array) ){
- //not the main blog, force single blog search
- $array['blog'] = get_current_blog_id();
- }elseif( empty($array['blog']) && get_site_option('dbem_ms_global_events') ) {
- $array['blog'] = false;
- }
- }
- $atts = parent::get_default_search($defaults, $array);
- $atts['full'] = ($atts['full']==true) ? 1:0;
- $atts['long_events'] = ($atts['long_events']==true) ? 1:0;
- return apply_filters('em_calendar_get_default_search', $atts, $array, $defaults);
- }
- }
- add_action('init', array('EM_Calendar', 'init'));