1 <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
5 * An open source application development framework for PHP 5.1.6 or newer
8 * @author ExpressionEngine Dev Team
9 * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
10 * @license http://codeigniter.com/user_guide/license.html
11 * @link http://codeigniter.com
16 // ------------------------------------------------------------------------
19 * CodeIgniter Calendar Class
21 * This class enables the creation of calendars
23 * @package CodeIgniter
24 * @subpackage Libraries
26 * @author ExpressionEngine Dev Team
27 * @link http://codeigniter.com/user_guide/libraries/calendar.html
35 var $start_day = 'sunday';
36 var $month_type = 'long';
37 var $day_type = 'abr';
38 var $show_next_prev = FALSE;
39 var $next_prev_url = '';
44 * Loads the calendar language file and sets the default time reference
46 public function __construct($config = array())
48 $this->CI =& get_instance();
50 if ( ! in_array('calendar_lang'.EXT, $this->CI->lang->is_loaded, TRUE))
52 $this->CI->lang->load('calendar');
55 $this->local_time = time();
57 if (count($config) > 0)
59 $this->initialize($config);
62 log_message('debug', "Calendar Class Initialized");
65 // --------------------------------------------------------------------
68 * Initialize the user preferences
70 * Accepts an associative array as input, containing display preferences
73 * @param array config preferences
76 function initialize($config = array())
78 foreach ($config as $key => $val)
80 if (isset($this->$key))
87 // --------------------------------------------------------------------
90 * Generate the calendar
93 * @param integer the year
94 * @param integer the month
95 * @param array the data to be shown in the calendar cells
98 function generate($year = '', $month = '', $data = array())
100 // Set and validate the supplied month/year
102 $year = date("Y", $this->local_time);
105 $month = date("m", $this->local_time);
107 if (strlen($year) == 1)
110 if (strlen($year) == 2)
113 if (strlen($month) == 1)
116 $adjusted_date = $this->adjust_date($month, $year);
118 $month = $adjusted_date['month'];
119 $year = $adjusted_date['year'];
121 // Determine the total days in the month
122 $total_days = $this->get_total_days($month, $year);
124 // Set the starting day of the week
125 $start_days = array('sunday' => 0, 'monday' => 1, 'tuesday' => 2, 'wednesday' => 3, 'thursday' => 4, 'friday' => 5, 'saturday' => 6);
126 $start_day = ( ! isset($start_days[$this->start_day])) ? 0 : $start_days[$this->start_day];
128 // Set the starting day number
129 $local_date = mktime(12, 0, 0, $month, 1, $year);
130 $date = getdate($local_date);
131 $day = $start_day + 1 - $date["wday"];
138 // Set the current month/year/day
139 // We use this to determine the "today" date
140 $cur_year = date("Y", $this->local_time);
141 $cur_month = date("m", $this->local_time);
142 $cur_day = date("j", $this->local_time);
144 $is_current_month = ($cur_year == $year AND $cur_month == $month) ? TRUE : FALSE;
146 // Generate the template data array
147 $this->parse_template();
149 // Begin building the calendar output
150 $out = $this->temp['table_open'];
154 $out .= $this->temp['heading_row_start'];
157 // "previous" month link
158 if ($this->show_next_prev == TRUE)
160 // Add a trailing slash to the URL if needed
161 $this->next_prev_url = preg_replace("/(.+?)\/*$/", "\\1/", $this->next_prev_url);
163 $adjusted_date = $this->adjust_date($month - 1, $year);
164 $out .= str_replace('{previous_url}', $this->next_prev_url.$adjusted_date['year'].'/'.$adjusted_date['month'], $this->temp['heading_previous_cell']);
168 // Heading containing the month/year
169 $colspan = ($this->show_next_prev == TRUE) ? 5 : 7;
171 $this->temp['heading_title_cell'] = str_replace('{colspan}', $colspan, $this->temp['heading_title_cell']);
172 $this->temp['heading_title_cell'] = str_replace('{heading}', $this->get_month_name($month)." ".$year, $this->temp['heading_title_cell']);
174 $out .= $this->temp['heading_title_cell'];
178 if ($this->show_next_prev == TRUE)
180 $adjusted_date = $this->adjust_date($month + 1, $year);
181 $out .= str_replace('{next_url}', $this->next_prev_url.$adjusted_date['year'].'/'.$adjusted_date['month'], $this->temp['heading_next_cell']);
185 $out .= $this->temp['heading_row_end'];
188 // Write the cells containing the days of the week
190 $out .= $this->temp['week_row_start'];
193 $day_names = $this->get_day_names();
195 for ($i = 0; $i < 7; $i ++)
197 $out .= str_replace('{week_day}', $day_names[($start_day + $i) %7], $this->temp['week_day_cell']);
201 $out .= $this->temp['week_row_end'];
204 // Build the main body of the calendar
205 while ($day <= $total_days)
208 $out .= $this->temp['cal_row_start'];
211 for ($i = 0; $i < 7; $i++)
213 $out .= ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_start_today'] : $this->temp['cal_cell_start'];
215 if ($day > 0 AND $day <= $total_days)
217 if (isset($data[$day]))
219 // Cells with content
220 $temp = ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_content_today'] : $this->temp['cal_cell_content'];
221 $out .= str_replace('{day}', $day, str_replace('{content}', $data[$day], $temp));
225 // Cells with no content
226 $temp = ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_no_content_today'] : $this->temp['cal_cell_no_content'];
227 $out .= str_replace('{day}', $day, $temp);
233 $out .= $this->temp['cal_cell_blank'];
236 $out .= ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_end_today'] : $this->temp['cal_cell_end'];
241 $out .= $this->temp['cal_row_end'];
246 $out .= $this->temp['table_close'];
251 // --------------------------------------------------------------------
256 * Generates a textual month name based on the numeric
260 * @param integer the month
263 function get_month_name($month)
265 if ($this->month_type == 'short')
267 $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');
271 $month_names = array('01' => 'cal_january', '02' => 'cal_february', '03' => 'cal_march', '04' => 'cal_april', '05' => 'cal_mayl', '06' => 'cal_june', '07' => 'cal_july', '08' => 'cal_august', '09' => 'cal_september', '10' => 'cal_october', '11' => 'cal_november', '12' => 'cal_december');
274 $month = $month_names[$month];
276 if ($this->CI->lang->line($month) === FALSE)
278 return ucfirst(str_replace('cal_', '', $month));
281 return $this->CI->lang->line($month);
284 // --------------------------------------------------------------------
289 * Returns an array of day names (Sunday, Monday, etc.) based
290 * on the type. Options: long, short, abrev
296 function get_day_names($day_type = '')
299 $this->day_type = $day_type;
301 if ($this->day_type == 'long')
303 $day_names = array('sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday');
305 elseif ($this->day_type == 'short')
307 $day_names = array('sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat');
311 $day_names = array('su', 'mo', 'tu', 'we', 'th', 'fr', 'sa');
315 foreach ($day_names as $val)
317 $days[] = ($this->CI->lang->line('cal_'.$val) === FALSE) ? ucfirst($val) : $this->CI->lang->line('cal_'.$val);
323 // --------------------------------------------------------------------
328 * This function makes sure that we have a valid month/year.
329 * For example, if you submit 13 as the month, the year will
330 * increment and the month will become January.
333 * @param integer the month
334 * @param integer the year
337 function adjust_date($month, $year)
341 $date['month'] = $month;
342 $date['year'] = $year;
344 while ($date['month'] > 12)
346 $date['month'] -= 12;
350 while ($date['month'] <= 0)
352 $date['month'] += 12;
356 if (strlen($date['month']) == 1)
358 $date['month'] = '0'.$date['month'];
364 // --------------------------------------------------------------------
367 * Total days in a given month
370 * @param integer the month
371 * @param integer the year
374 function get_total_days($month, $year)
376 $days_in_month = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
378 if ($month < 1 OR $month > 12)
383 // Is the year a leap year?
386 if ($year % 400 == 0 OR ($year % 4 == 0 AND $year % 100 != 0))
392 return $days_in_month[$month - 1];
395 // --------------------------------------------------------------------
398 * Set Default Template Data
400 * This is used in the event that the user has not created their own template
405 function default_template()
408 'table_open' => '<table border="0" cellpadding="4" cellspacing="0">',
409 'heading_row_start' => '<tr>',
410 'heading_previous_cell' => '<th><a href="{previous_url}"><<</a></th>',
411 'heading_title_cell' => '<th colspan="{colspan}">{heading}</th>',
412 'heading_next_cell' => '<th><a href="{next_url}">>></a></th>',
413 'heading_row_end' => '</tr>',
414 'week_row_start' => '<tr>',
415 'week_day_cell' => '<td>{week_day}</td>',
416 'week_row_end' => '</tr>',
417 'cal_row_start' => '<tr>',
418 'cal_cell_start' => '<td>',
419 'cal_cell_start_today' => '<td>',
420 'cal_cell_content' => '<a href="{content}">{day}</a>',
421 'cal_cell_content_today' => '<a href="{content}"><strong>{day}</strong></a>',
422 'cal_cell_no_content' => '{day}',
423 'cal_cell_no_content_today' => '<strong>{day}</strong>',
424 'cal_cell_blank' => ' ',
425 'cal_cell_end' => '</td>',
426 'cal_cell_end_today' => '</td>',
427 'cal_row_end' => '</tr>',
428 'table_close' => '</table>'
432 // --------------------------------------------------------------------
437 * Harvests the data within the template {pseudo-variables}
438 * used to display the calendar
443 function parse_template()
445 $this->temp = $this->default_template();
447 if ($this->template == '')
452 $today = array('cal_cell_start_today', 'cal_cell_content_today', 'cal_cell_no_content_today', 'cal_cell_end_today');
454 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 $val)
456 if (preg_match("/\{".$val."\}(.*?)\{\/".$val."\}/si", $this->template, $match))
458 $this->temp[$val] = $match['1'];
462 if (in_array($val, $today, TRUE))
464 $this->temp[$val] = $this->temp[str_replace('_today', '', $val)];
472 // END CI_Calendar class
474 /* End of file Calendar.php */
475 /* Location: ./system/libraries/Calendar.php */