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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); |
/** |
* CodeIgniter |
* |
* An open source application development framework for PHP 4.3.2 or newer |
* |
* @package CodeIgniter |
* @author ExpressionEngine Dev Team |
* @copyright Copyright (c) 2008, EllisLab, Inc. |
* @license http://codeigniter.com/user_guide/license.html |
* @link http://codeigniter.com |
* @since Version 1.0 |
* @filesource |
*/ |
|
// ------------------------------------------------------------------------ |
|
/** |
* CodeIgniter Calendar Class |
* |
* This class enables the creation of calendars |
* |
* @package CodeIgniter |
* @subpackage Libraries |
* @category Libraries |
* @author ExpressionEngine Dev Team |
* @link http://codeigniter.com/user_guide/libraries/calendar.html |
*/ |
class CI_Calendar { |
|
var $CI; |
var $lang; |
var $local_time; |
var $template = ''; |
var $start_day = 'sunday'; |
var $month_type = 'long'; |
var $day_type = 'abr'; |
var $show_next_prev = FALSE; |
var $next_prev_url = ''; |
|
/** |
* Constructor |
* |
* Loads the calendar language file and sets the default time reference |
* |
* @access public |
*/ |
function CI_Calendar($config = array()) |
{ |
$this->CI =& get_instance(); |
|
if ( ! in_array('calendar_lang'.EXT, $this->CI->lang->is_loaded, TRUE)) |
{ |
$this->CI->lang->load('calendar'); |
} |
|
$this->local_time = time(); |
|
if (count($config) > 0) |
{ |
$this->initialize($config); |
} |
|
log_message('debug', "Calendar Class Initialized"); |
} |
|
// -------------------------------------------------------------------- |
|
/** |
* Initialize the user preferences |
* |
* Accepts an associative array as input, containing display preferences |
* |
* @access public |
* @param array config preferences |
* @return void |
*/ |
function initialize($config = array()) |
{ |
foreach ($config as $key => $val) |
{ |
if (isset($this->$key)) |
{ |
$this->$key = $val; |
} |
} |
} |
|
// -------------------------------------------------------------------- |
|
/** |
* Generate the calendar |
* |
* @access public |
* @param integer the year |
* @param integer the month |
* @param array the data to be shown in the calendar cells |
* @return string |
*/ |
function generate($year = '', $month = '', $data = array()) |
{ |
// Set and validate the supplied month/year |
if ($year == '') |
$year = date("Y", $this->local_time); |
|
if ($month == '') |
$month = date("m", $this->local_time); |
|
if (strlen($year) == 1) |
$year = '200'.$year; |
|
if (strlen($year) == 2) |
$year = '20'.$year; |
|
if (strlen($month) == 1) |
$month = '0'.$month; |
|
$adjusted_date = $this->adjust_date($month, $year); |
|
$month = $adjusted_date['month']; |
$year = $adjusted_date['year']; |
|
// Determine the total days in the month |
$total_days = $this->get_total_days($month, $year); |
|
// Set the starting day of the week |
$start_days = array('sunday' => 0, 'monday' => 1, 'tuesday' => 2, 'wednesday' => 3, 'thursday' => 4, 'friday' => 5, 'saturday' => 6); |
$start_day = ( ! isset($start_days[$this->start_day])) ? 0 : $start_days[$this->start_day]; |
|
// Set the starting day number |
$local_date = mktime(12, 0, 0, $month, 1, $year); |
$date = getdate($local_date); |
$day = $start_day + 1 - $date["wday"]; |
|
while ($day > 1) |
{ |
$day -= 7; |
} |
|
// Set the current month/year/day |
// We use this to determine the "today" date |
$cur_year = date("Y", $this->local_time); |
$cur_month = date("m", $this->local_time); |
$cur_day = date("j", $this->local_time); |
|
$is_current_month = ($cur_year == $year AND $cur_month == $month) ? TRUE : FALSE; |
|
// Generate the template data array |
$this->parse_template(); |
|
// Begin building the calendar output |
$out = $this->temp['table_open']; |
$out .= "\n"; |
|
$out .= "\n"; |
$out .= $this->temp['heading_row_start']; |
$out .= "\n"; |
|
// "previous" month link |
if ($this->show_next_prev == TRUE) |
{ |
// Add a trailing slash to the URL if needed |
$this->next_prev_url = preg_replace("/(.+?)\/*$/", "\\1/", $this->next_prev_url); |
|
$adjusted_date = $this->adjust_date($month - 1, $year); |
$out .= str_replace('{previous_url}', $this->next_prev_url.$adjusted_date['year'].'/'.$adjusted_date['month'], $this->temp['heading_previous_cell']); |
$out .= "\n"; |
} |
|
// Heading containing the month/year |
$colspan = ($this->show_next_prev == TRUE) ? 5 : 7; |
|
$this->temp['heading_title_cell'] = str_replace('{colspan}', $colspan, $this->temp['heading_title_cell']); |
$this->temp['heading_title_cell'] = str_replace('{heading}', $this->get_month_name($month)." ".$year, $this->temp['heading_title_cell']); |
|
$out .= $this->temp['heading_title_cell']; |
$out .= "\n"; |
|
// "next" month link |
if ($this->show_next_prev == TRUE) |
{ |
$adjusted_date = $this->adjust_date($month + 1, $year); |
$out .= str_replace('{next_url}', $this->next_prev_url.$adjusted_date['year'].'/'.$adjusted_date['month'], $this->temp['heading_next_cell']); |
} |
|
$out .= "\n"; |
$out .= $this->temp['heading_row_end']; |
$out .= "\n"; |
|
// Write the cells containing the days of the week |
$out .= "\n"; |
$out .= $this->temp['week_row_start']; |
$out .= "\n"; |
|
$day_names = $this->get_day_names(); |
|
for ($i = 0; $i < 7; $i ++) |
{ |
$out .= str_replace('{week_day}', $day_names[($start_day + $i) %7], $this->temp['week_day_cell']); |
} |
|
$out .= "\n"; |
$out .= $this->temp['week_row_end']; |
$out .= "\n"; |
|
// Build the main body of the calendar |
while ($day <= $total_days) |
{ |
$out .= "\n"; |
$out .= $this->temp['cal_row_start']; |
$out .= "\n"; |
|
for ($i = 0; $i < 7; $i++) |
{ |
$out .= ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_start_today'] : $this->temp['cal_cell_start']; |
|
if ($day > 0 AND $day <= $total_days) |
{ |
if (isset($data[$day])) |
{ |
// Cells with content |
$temp = ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_content_today'] : $this->temp['cal_cell_content']; |
$out .= str_replace('{day}', $day, str_replace('{content}', $data[$day], $temp)); |
} |
else |
{ |
// Cells with no content |
$temp = ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_no_content_today'] : $this->temp['cal_cell_no_content']; |
$out .= str_replace('{day}', $day, $temp); |
} |
} |
else |
{ |
// Blank cells |
$out .= $this->temp['cal_cell_blank']; |
} |
|
$out .= ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_end_today'] : $this->temp['cal_cell_end']; |
$day++; |
} |
|
$out .= "\n"; |
$out .= $this->temp['cal_row_end']; |
$out .= "\n"; |
} |
|
$out .= "\n"; |
$out .= $this->temp['table_close']; |
|
return $out; |
} |
|
// -------------------------------------------------------------------- |
|
/** |
* Get Month Name |
* |
* Generates a textual month name based on the numeric |
* month provided. |
* |
* @access public |
* @param integer the month |
* @return string |
*/ |
function get_month_name($month) |
{ |
if ($this->month_type == 'short') |
{ |
$month_names = array('01' => 'cal_jan', '02' => 'cal_feb', '03' => 'cal_mar', '04' => 'cal_apr', '05' => 'cal_may', '06' => 'cal_jun', '07' => 'cal_jul', '08' => 'cal_aug', '09' => 'cal_sep', '10' => 'cal_oct', '11' => 'cal_nov', '12' => 'cal_dec'); |
} |
else |
{ |
$month_names = array('01' => 'cal_january', '02' => 'cal_february', '03' => 'cal_march', '04' => 'cal_april', '05' => 'cal_may', '06' => 'cal_june', '07' => 'cal_july', '08' => 'cal_august', '09' => 'cal_september', '10' => 'cal_october', '11' => 'cal_november', '12' => 'cal_december'); |
} |
|
$month = $month_names[$month]; |
|
if ($this->CI->lang->line($month) === FALSE) |
{ |
return ucfirst(str_replace('cal_', '', $month)); |
} |
|
return $this->CI->lang->line($month); |
} |
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// -------------------------------------------------------------------- |
|
/** |
* Get Day Names |
* |
* Returns an array of day names (Sunday, Monday, etc.) based |
* on the type. Options: long, short, abrev |
* |
* @access public |
* @param string |
* @return array |
*/ |
function get_day_names($day_type = '') |
{ |
if ($day_type != '') |
$this->day_type = $day_type; |
|
if ($this->day_type == 'long') |
{ |
$day_names = array('sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday'); |
} |
elseif ($this->day_type == 'short') |
{ |
$day_names = array('sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat'); |
} |
else |
{ |
$day_names = array('su', 'mo', 'tu', 'we', 'th', 'fr', 'sa'); |
} |
|
$days = array(); |
foreach ($day_names as $val) |
{ |
$days[] = ($this->CI->lang->line('cal_'.$val) === FALSE) ? ucfirst($val) : $this->CI->lang->line('cal_'.$val); |
} |
|
return $days; |
} |
|
// -------------------------------------------------------------------- |
|
/** |
* Adjust Date |
* |
* This function makes sure that we have a valid month/year. |
* For example, if you submit 13 as the month, the year will |
* increment and the month will become January. |
* |
* @access public |
* @param integer the month |
* @param integer the year |
* @return array |
*/ |
function adjust_date($month, $year) |
{ |
$date = array(); |
|
$date['month'] = $month; |
$date['year'] = $year; |
|
while ($date['month'] > 12) |
{ |
$date['month'] -= 12; |
$date['year']++; |
} |
|
while ($date['month'] <= 0) |
{ |
$date['month'] += 12; |
$date['year']--; |
} |
|
if (strlen($date['month']) == 1) |
{ |
$date['month'] = '0'.$date['month']; |
} |
|
return $date; |
} |
|
// -------------------------------------------------------------------- |
|
/** |
* Total days in a given month |
* |
* @access public |
* @param integer the month |
* @param integer the year |
* @return integer |
*/ |
function get_total_days($month, $year) |
{ |
$days_in_month = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); |
|
if ($month < 1 OR $month > 12) |
{ |
return 0; |
} |
|
// Is the year a leap year? |
if ($month == 2) |
{ |
if ($year % 400 == 0 OR ($year % 4 == 0 AND $year % 100 != 0)) |
{ |
return 29; |
} |
} |
|
return $days_in_month[$month - 1]; |
} |
|
// -------------------------------------------------------------------- |
|
/** |
* Set Default Template Data |
* |
* This is used in the event that the user has not created their own template |
* |
* @access public |
* @return array |
*/ |
function default_template() |
{ |
return array ( |
'table_open' => '<table border="0" cellpadding="4" cellspacing="0">', |
'heading_row_start' => '<tr>', |
'heading_previous_cell' => '<th><a href="{previous_url}"><<</a></th>', |
'heading_title_cell' => '<th colspan="{colspan}">{heading}</th>', |
'heading_next_cell' => '<th><a href="{next_url}">>></a></th>', |
'heading_row_end' => '</tr>', |
'week_row_start' => '<tr>', |
'week_day_cell' => '<td>{week_day}</td>', |
'week_row_end' => '</tr>', |
'cal_row_start' => '<tr>', |
'cal_cell_start' => '<td>', |
'cal_cell_start_today' => '<td>', |
'cal_cell_content' => '<a href="{content}">{day}</a>', |
'cal_cell_content_today' => '<a href="{content}"><strong>{day}</strong></a>', |
'cal_cell_no_content' => '{day}', |
'cal_cell_no_content_today' => '<strong>{day}</strong>', |
'cal_cell_blank' => ' ', |
'cal_cell_end' => '</td>', |
'cal_cell_end_today' => '</td>', |
'cal_row_end' => '</tr>', |
'table_close' => '</table>' |
); |
} |
|
// -------------------------------------------------------------------- |
|
/** |
* Parse Template |
* |
* Harvests the data within the template {pseudo-variables} |
* used to display the calendar |
* |
* @access public |
* @return void |
*/ |
function parse_template() |
{ |
$this->temp = $this->default_template(); |
|
if ($this->template == '') |
{ |
return; |
} |
|
$today = array('cal_cell_start_today', 'cal_cell_content_today', 'cal_cell_no_content_today', 'cal_cell_end_today'); |
|
foreach (array('table_open', 'table_close', 'heading_row_start', 'heading_previous_cell', 'heading_title_cell', 'heading_next_cell', 'heading_row_end', 'week_row_start', 'week_day_cell', 'week_row_end', 'cal_row_start', 'cal_cell_start', 'cal_cell_content', 'cal_cell_no_content', 'cal_cell_blank', 'cal_cell_end', 'cal_row_end', 'cal_cell_start_today', 'cal_cell_content_today', 'cal_cell_no_content_today', 'cal_cell_end_today') as $val) |
{ |
if (preg_match("/\{".$val."\}(.*?)\{\/".$val."\}/si", $this->template, $match)) |
{ |
$this->temp[$val] = $match['1']; |
} |
else |
{ |
if (in_array($val, $today, TRUE)) |
{ |
$this->temp[$val] = $this->temp[str_replace('_today', '', $val)]; |
} |
} |
} |
} |
|
} |
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// END CI_Calendar class |
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/* End of file Calendar.php */ |
/* Location: ./system/libraries/Calendar.php */ |