dates = array( );
}
function recurrence_dates_from_post( $fields, $values, $r_mode ) {
$this->fields = $fields;
$this->values = $values;
$this->r_mode = $r_mode;
$this->type = $_POST['_epl_recurrence_frequency'];
$this->interval = $_POST['_epl_recurrence_interval'];
//if a class, that has many days for the same event
if ( current( ( array ) $_POST['_epl_event_type'] ) == 10 ) {
$this->rec_start_date = date( "Y-m-d", strtotime( epl_dmy_convert( current( ( array ) $_POST['_epl_start_date'] ) ) ) );
$rec_first_end_date = date( "Y-m-d", strtotime( epl_dmy_convert( current( ( array ) $_POST['_epl_start_date'] ) ) ) );
$this->ind_event_length = $this->get_date_difference( $this->rec_start_date, $rec_first_end_date, 'day' );
$this->recurrence_end_date = date( "Y-m-d", strtotime( epl_dmy_convert( current( ( array ) $_POST['_epl_end_date'] ) ) ) );
}
else {
$this->rec_start_date = date( "Y-m-d", strtotime( epl_dmy_convert( $_POST['_epl_rec_first_start_date'] ) ) );
$rec_first_end_date = date( "Y-m-d", strtotime( epl_dmy_convert( $_POST['_epl_rec_first_end_date'] ) ) );
$this->ind_event_length = $this->get_date_difference( $this->rec_start_date, $rec_first_end_date, 'day' );
// $epl_rec_first_end_date = date( "Y-m-d", strtotime( epl_dmy_convert($_POST['_epl_rec_first_end_date'] ) ));
$this->recurrence_end_date = date( "Y-m-d", strtotime( epl_dmy_convert( $_POST['_epl_recurrence_end'] ) ) );
$first_day = date( "d", strtotime( $this->rec_start_date ) );
}
$this->week_of_first_day = $this->get_week_of_the_month( $this->rec_start_date );
//Find the difference between the start and end dates, based on the selected type (i.e. day, week, month
$this->difference = $this->get_date_difference( $this->rec_start_date, $this->recurrence_end_date, $this->type );
//weekdays are used for daily and weekly types
$this->weekdays = (isset( $_POST['_epl_recurrence_weekdays'] ) && is_array( $_POST['_epl_recurrence_weekdays'] )) ? $_POST['_epl_recurrence_weekdays'] : array( );
//make a timestamp of the start date
$_start_date = explode( '-', $this->rec_start_date );
$this->date_to_time = mktime( 0, 0, 0, $_start_date[1], $_start_date[2], $_start_date[0] );
//will hold the dates that the formula constructs
/*
* from first day to the last
*/
$this->get_the_dates();
//epl_log('debug', "" . print_r($this->dates, true ) . "
");
if ( $this->r_mode == 'recurrence_preview' )
$r = $this->epl_util->construct_calendar( $this->dates ); // . $this->construct_table_array( $dates );
else
$r = $this->construct_table_array( $this->dates );
return $r;
}
/*
* for a specific event
*/
function recurrence_dates_from_db( $event_data ) {
$this->dates = array( );
if ( current( ( array ) $event_data['_epl_event_type'] ) == 0 )
return;
/*
* need the start date
* need the end date
*
* recurrence scheme
*
*
*/
$this->type = $event_data['_epl_recurrence_frequency'];
$this->interval = $event_data['_epl_recurrence_interval'];
//if a class, that has many days for the same event
if ( current( ( array ) $event_data['_epl_event_type'] ) == 10 ) {
$this->rec_start_date = date( "Y-m-d", strtotime( epl_dmy_convert(current( ( array ) $event_data['_epl_start_date'] ) ) ));
$rec_first_end_date = date( "Y-m-d", strtotime( epl_dmy_convert(current( ( array ) $event_data['_epl_start_date'] ) ) ));
$this->ind_event_length = $this->get_date_difference( $this->rec_start_date, $rec_first_end_date, 'day' );
$this->recurrence_end_date = date( "Y-m-d", strtotime( epl_dmy_convert(current( ( array ) $event_data['_epl_end_date'] ) ) ));
}
else {
$this->rec_start_date = date( "Y-m-d", strtotime( epl_dmy_convert($event_data['_epl_rec_first_start_date'] ) ));
$rec_first_end_date = date( "Y-m-d", strtotime( epl_dmy_convert($event_data['_epl_rec_first_end_date'] ) ));
$this->ind_event_length = $this->get_date_difference( $this->rec_start_date, $rec_first_end_date, 'day' );
$epl_rec_first_end_date = date( "Y-m-d", strtotime( epl_dmy_convert($event_data['_epl_rec_first_start_date'] ) ));
$this->recurrence_end_date = date( "Y-m-d", strtotime( epl_dmy_convert($event_data['_epl_recurrence_end'] ) ));
$first_day = date( "d", strtotime( $this->rec_start_date ) );
}
$this->week_of_first_day = $this->get_week_of_the_month( $this->rec_start_date );
//Find the difference between the start and end dates, based on the selected type (i.e. day, week, month
$this->difference = $this->get_date_difference( $this->rec_start_date, $this->recurrence_end_date, $this->type );
//weekdays are used for daily and weekly types
$this->weekdays = (isset( $event_data['_epl_recurrence_weekdays'] ) && is_array( $event_data['_epl_recurrence_weekdays'] )) ? $event_data['_epl_recurrence_weekdays'] : array( );
//make a timestamp of the start date
$_start_date = explode( '-', $this->rec_start_date );
$this->date_to_time = mktime( 0, 0, 0, $_start_date[1], $_start_date[2], $_start_date[0] );
//will hold the dates that the formula constructs
/*
* from first day to the last
*/
$this->get_the_dates();
return $this->dates;
}
function get_the_dates() {
for ( $i = 0; $i <= $this->difference; $i = $i + $this->interval ) {
//formula for determining the next date in the seried
$new_date = '+ ' . $i . " $this->type";
$new_unix_time = strtotime( $new_date, $this->date_to_time );
//Get the date information for later use.
$date_parts = getdate( $new_unix_time );
//formatted new date
$new_date = date( 'Y-m-d', $new_unix_time );
//grab the year of the new date
$newdate_year = $date_parts['year'];
//grab month of the new date
$newdate_month = $date_parts['mon'];
//grab the day of the month
$j = $date_parts['mday'];
//put the new date in the array
$this->dates[$newdate_year][$newdate_month][$j] = $new_date;
//For daily and weekly, give the user tha ability to select on which days of the week the event occurs
if ( is_array( $this->weekdays ) && !empty( $this->weekdays ) && $this->type != 'month' ) {
if ( $this->type == 'day' ) {
//get the week number of the new date
$new_weekday = $date_parts['wday'];
//if the weeknumber of the new date is not in the weekdays that the user wants, unset the new date
if ( !in_array( $new_weekday, $this->weekdays ) )
unset( $this->dates[$newdate_year][$newdate_month][$j] );
} elseif ( $this->type == 'week' ) {
/*
* For weekly, we need to find all the days of the week of the new date
* and then determine if they are in the array. This get_days_of_a_week takes
* care of it.
* NOTICE the $dates passed by reference
*/
$this->get_days_of_a_week( $new_date, $this->rec_start_date, $this->recurrence_end_date, $this->weekdays );
}
}
elseif ( $this->type == 'month' && $_POST['_epl_recurrence_repeat_by'] == 10 ) {
/*
* If it is monthly and repeats on a specific day of week (e.g. third Wednesday of each month),
* we need to find which weekday the start date belongs to and go from there.
*/
}
}
//return $this->dates;
}
function construct_dates_blueprint( $data ) {
}
function construct_table_array( $dates ) {
$r = array( );
$date_format = get_option( 'date_format' );
/*
* need to know registration start and end dates
* need to know the constructed dates
*
*/
//epl_log( "debug", "" . print_r( $dates, true ) . "
" );
foreach ( $dates as $year => $month ) {
foreach ( $month as $_month => $_days ) {
foreach ( $_days as $k => $v ) {
$_dd = strtotime( $v );
$_d = date( $date_format, $_dd );
//preserving the keys for dates that have already been saved.
//Just in case there may be a registration that has been assigned to that date id
$_u_k = array_search( $_d, ( array ) $this->values['_epl_start_date'] );
if ( $_u_k === FALSE ) {
$_u_k = $this->epl_util->make_unique_id();
}
$data['_epl_start_date'][$_u_k] = $_d;
$data['_epl_end_date'][$_u_k] = date( $date_format, strtotime( "+{$this->ind_event_length} day", $_dd ) );
if ( isset( $_POST['_epl_rec_regis_start_date'] ) && $_POST['_epl_rec_regis_start_date'] != '' ) {
$data['_epl_regis_start_date'][$_u_k] = date( $date_format, strtotime( epl_dmy_convert($_POST['_epl_rec_regis_start_date'] )) );
}
elseif ( isset( $_POST['_epl_rec_regis_start_days_before_start_date'] ) && $_POST['_epl_rec_regis_start_days_before_start_date'] != '' ) {
$data['_epl_regis_start_date'][$_u_k] = date( $date_format, strtotime( "-" . ( int ) $_POST['_epl_rec_regis_start_days_before_start_date'] . " day", $_dd ) );
}
if ( isset( $_POST['_epl_rec_regis_end_date'] ) && $_POST['_epl_rec_regis_end_date'] != '' ) {
$data['_epl_regis_end_date'][$_u_k] = date( $date_format, strtotime( epl_dmy_convert($_POST['_epl_rec_regis_end_date'] ) ) );
}
elseif ( isset( $_POST['_epl_rec_regis_end_days_before_start_date'] ) && $_POST['_epl_rec_regis_end_days_before_start_date'] != '' ) {
$data['_epl_regis_end_date'][$_u_k] = date( $date_format, strtotime( "-" . ( int ) $_POST['_epl_rec_regis_end_days_before_start_date'] . " day", $_dd ) );
}
}
}
}
//epl_log( "debug", "" . print_r($data, true ) . "
" );
$rows_to_display = count( $data['_epl_start_date'] );
$fields_to_display = array_keys( $this->fields['epl_date_fields'] );
$_field_args = array(
'section' => $this->fields['epl_date_fields'],
'fields_to_display' => $fields_to_display,
'meta' => array( '_view' => 1, '_type' => 'row', '_rows' => $rows_to_display, 'value' => $data )
);
$data['date_fields'] = $this->epl_util->render_fields( $_field_args );
//epl_log( "" . print_r($data['date_fields'], true ) . "
", 1 );
//echo "" . print_r($data['date_fields'], true). "
";
$r = $this->epl->load_view( 'admin/events/dates-section', $data, true );
return $r;
}
function get_date_difference( $start_date, $end_date, $format = 'day' ) {
if ( $start_date == '' || $end_date == '' )
return false;
/*
* Can't remember where I got this. Would love to credit the author.
*/
$startdate = explode( "-", $start_date );
$enddate = explode( "-", $end_date );
$seconds_difference = mktime( 0, 0, 0, $enddate[1], $enddate[2], $enddate[0] ) - mktime( 0, 0, 0, $startdate[1], $startdate[2], $startdate[0] );
switch ( $format )
{
case 'minute': // Difference in Minutes
return floor( $seconds_difference / 60 );
case 'hour': // Difference in Hours
return floor( $seconds_difference / 60 / 60 );
case 'day': // Difference in Days
return floor( $seconds_difference / 60 / 60 / 24 );
case 'week': // Difference in Weeks
return floor( $seconds_difference / 60 / 60 / 24 / 7 );
case 'month': // Difference in Months
//return floor( $seconds_difference / 60 / 60 / 24 / 7 / 4 );
$diff = abs( strtotime( $end_date ) - strtotime( $start_date ) );
$years = floor( $diff / (365 * 60 * 60 * 24) );
return floor( ($diff - $years * 365 * 60 * 60 * 24) / (30 * 60 * 60 * 24) );
default: // Difference in Years
return floor( $seconds_difference / 365 / 60 / 60 / 24 );
}
}
function get_week_of_the_month( $date ) {
$d = date( 'j', $date );
$w = date( 'w', $date ) + 1; //add 1 because date returns value between 0 to 6
$dt = (floor( $d % 7 ) != 0) ? floor( $d % 7 ) : 7;
$k = (($w - $dt) < 0) ? 7 + ($w - $dt) : $w - $dt;
$W = ceil( ($d + $k) / 7 );
return $W;
}
/**
* Returns an array of days in a certain week
*
* When a date is passed to the function, the weekday number of that day is calculated.
* Then, looping from 0-6 (Sun - Sat), the dates of that week are calculated.
*
* @since 1.0.0
* @param date $date Ex. 2011-01-01
* @param date $startdate If passed, will only return dates after that day. Ex. 2011-01-01
* @param array $weekdays From the recurrence form, the checkboxes corresponding to the weekdays.
* @return string
*/
function get_days_of_a_week( $date, $start_date = 0, $end_date = 0, $weekdays = array( ) ) {
$date = strtotime( epl_dmy_convert( $date ) );
$start_date = strtotime( epl_dmy_convert( $start_date ) );
$end_date = strtotime( epl_dmy_convert( $end_date ) );
//usingn this method instead of date("W") since the latter method uses Monday as start of week
$year = date( "Y", $date );
$jan1 = gmmktime( 0, 0, 0, 1, 1, $year );
$mydate = gmmktime( 0, 0, 0, 11, 30, $year );
$week_number = ( int ) (($date - $jan1) / (7 * 24 * 60 * 60)) + 1;
// below, in the loop, for $n_d, the week number that is below 10 needs to be represented in 0# format
if ( $week_number < 10 )
$week_number = "0" . $week_number;
//$week_number = date( "W", $date ); //Note that this number is derived with Monday as start of the week
$_d = array( );
for ( $day = 0; $day <= 6; $day++ ) {
$n_d = strtotime( $year . "W" . $week_number . $day );
$newdate_year = date( "Y", $n_d );
$newdate_month = date( "n", $n_d );
$j = date( "j", $n_d ); //day 1-31
$w = date( "w", $n_d ); //day of the week 0-6
if ( ($n_d >= $start_date && $n_d <= $end_date) && in_array( $w, $weekdays ) ) {
$this->dates[$newdate_year][$newdate_month][$j] = date( 'Y-m-d', $n_d );
}
else {
unset( $this->dates[$newdate_year][$newdate_month][$j] );
}
}
}
}
?>