/system/codeigniter/libraries/Calendar.php
PHP | 506 lines | 253 code | 74 blank | 179 comment | 40 complexity | bf949b4cda22821551e766d8758179d9 MD5 | raw file
- <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
- /**
- * CodeIgniter
- *
- * An open source application development framework for PHP 5.2.4 or newer
- *
- * NOTICE OF LICENSE
- *
- * Licensed under the Open Software License version 3.0
- *
- * This source file is subject to the Open Software License (OSL 3.0) that is
- * bundled with this package in the files license.txt / license.rst. It is
- * also available through the world wide web at this URL:
- * http://opensource.org/licenses/OSL-3.0
- * If you did not receive a copy of the license and are unable to obtain it
- * through the world wide web, please send an email to
- * licensing@ellislab.com so we can send you a copy immediately.
- *
- * @package CodeIgniter
- * @author EllisLab Dev Team
- * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
- * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
- * @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 EllisLab Dev Team
- * @link http://codeigniter.com/user_guide/libraries/calendar.html
- */
- class CI_Calendar {
- /**
- * Reference to CodeIgniter instance
- *
- * @var object
- */
- protected $CI;
- /**
- * Current local time
- *
- * @var int
- */
- public $local_time;
- /**
- * Calendar layout template
- *
- * @var string
- */
- public $template = '';
- /**
- * Day of the week to start the calendar on
- *
- * @var string
- */
- public $start_day = 'sunday';
- /**
- * How to display months
- *
- * @var string
- */
- public $month_type = 'long';
- /**
- * How to display names of days
- *
- * @var string
- */
- public $day_type = 'abr';
- /**
- * Whether to show next/prev month links
- *
- * @var bool
- */
- public $show_next_prev = FALSE;
- /**
- * Url base to use for next/prev month links
- *
- * @var bool
- */
- public $next_prev_url = '';
- /**
- * Constructor
- *
- * Loads the calendar language file and sets the default time reference
- *
- * @param array
- * @return void
- */
- public function __construct($config = array())
- {
- $this->CI =& get_instance();
- if ( ! in_array('calendar_lang.php', $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
- *
- * @param array config preferences
- * @return void
- */
- public function initialize($config = array())
- {
- foreach ($config as $key => $val)
- {
- if (isset($this->$key))
- {
- $this->$key = $val;
- }
- }
- }
- // --------------------------------------------------------------------
- /**
- * Generate the calendar
- *
- * @param int the year
- * @param int the month
- * @param array the data to be shown in the calendar cells
- * @return string
- */
- public function generate($year = '', $month = '', $data = array())
- {
- // Set and validate the supplied month/year
- if (empty($year))
- {
- $year = date('Y', $this->local_time);
- }
- elseif (strlen($year) === 1)
- {
- $year = '200'.$year;
- }
- elseif (strlen($year) === 2)
- {
- $year = '20'.$year;
- }
- if (empty($month))
- {
- $month = date('m', $this->local_time);
- }
- elseif (strlen($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]) ? $start_days[$this->start_day] : 0;
- // 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 && $cur_month == $month);
- // Generate the template data array
- $this->parse_template();
- // Begin building the calendar output
- $out = $this->temp['table_open']."\n\n".$this->temp['heading_row_start']."\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'])."\n";
- }
- // Heading containing the month/year
- $colspan = ($this->show_next_prev === TRUE) ? 5 : 7;
- $this->temp['heading_title_cell'] = str_replace('{colspan}', $colspan,
- str_replace('{heading}', $this->get_month_name($month).' '.$year, $this->temp['heading_title_cell']));
- $out .= $this->temp['heading_title_cell']."\n";
- // "next" month link
- if ($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']);
- }
- $out .= "\n".$this->temp['heading_row_end']."\n\n"
- // Write the cells containing the days of the week
- .$this->temp['week_row_start']."\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']);
- }
- $out .= "\n".$this->temp['week_row_end']."\n";
- // Build the main body of the calendar
- while ($day <= $total_days)
- {
- $out .= "\n".$this->temp['cal_row_start']."\n";
- for ($i = 0; $i < 7; $i++)
- {
- $out .= ($is_current_month === TRUE && $day == $cur_day) ? $this->temp['cal_cell_start_today'] : $this->temp['cal_cell_start'];
- if ($day > 0 && $day <= $total_days)
- {
- if (isset($data[$day]))
- {
- // Cells with content
- $temp = ($is_current_month === TRUE && $day == $cur_day) ?
- $this->temp['cal_cell_content_today'] : $this->temp['cal_cell_content'];
- $out .= str_replace(array('{content}', '{day}'), array($data[$day], $day), $temp);
- }
- else
- {
- // Cells with no content
- $temp = ($is_current_month === TRUE && $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 && $day == $cur_day) ? $this->temp['cal_cell_end_today'] : $this->temp['cal_cell_end'];
- $day++;
- }
- $out .= "\n".$this->temp['cal_row_end']."\n";
- }
- return $out .= "\n".$this->temp['table_close'];
- }
- // --------------------------------------------------------------------
- /**
- * Get Month Name
- *
- * Generates a textual month name based on the numeric
- * month provided.
- *
- * @param int the month
- * @return string
- */
- public 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
- {
- $month_names = array('01' => 'cal_january', '02' => 'cal_february', '03' => 'cal_march', '04' => 'cal_april', '05' => 'cal_mayl', '06' => 'cal_june', '07' => 'cal_july', '08' => 'cal_august', '09' => 'cal_september', '10' => 'cal_october', '11' => 'cal_november', '12' => 'cal_december');
- }
- return ($this->CI->lang->line($month_names[$month]) === FALSE)
- ? ucfirst(substr($month_names[$month], 4))
- : $this->CI->lang->line($month_names[$month]);
- }
- // --------------------------------------------------------------------
- /**
- * Get Day Names
- *
- * Returns an array of day names (Sunday, Monday, etc.) based
- * on the type. Options: long, short, abrev
- *
- * @param string
- * @return array
- */
- public function get_day_names($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');
- }
- $days = array();
- for ($i = 0, $c = count($day_names); $i < $c; $i++)
- {
- $days[] = ($this->CI->lang->line('cal_'.$day_names[$i]) === FALSE) ? ucfirst($day_names[$i]) : $this->CI->lang->line('cal_'.$day_names[$i]);
- }
- return $days;
- }
- // --------------------------------------------------------------------
- /**
- * Adjust Date
- *
- * This function makes sure that we have a valid month/year.
- * For example, if you submit 13 as the month, the year will
- * increment and the month will become January.
- *
- * @param int the month
- * @param int the year
- * @return array
- */
- public function adjust_date($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 $date;
- }
- // --------------------------------------------------------------------
- /**
- * Total days in a given month
- *
- * @param int the month
- * @param int the year
- * @return int
- */
- public function get_total_days($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 && $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
- *
- * @return array
- */
- public 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
- *
- * @return void
- */
- public 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] = $match[1];
- }
- elseif (in_array($val, $today, TRUE))
- {
- $this->temp[$val] = $this->temp[substr($val, 0, -6)];
- }
- }
- }
- }
- /* End of file Calendar.php */
- /* Location: ./system/libraries/Calendar.php */