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546 lines
15 KiB
546 lines
15 KiB
<?php |
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/** |
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* CodeIgniter |
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* |
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* An open source application development framework for PHP |
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* |
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* This content is released under the MIT License (MIT) |
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* |
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* Copyright (c) 2014 - 2018, British Columbia Institute of Technology |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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* |
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* @package CodeIgniter |
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* @author EllisLab Dev Team |
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* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) |
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* @copyright Copyright (c) 2014 - 2018, British Columbia Institute of Technology (http://bcit.ca/) |
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* @license http://opensource.org/licenses/MIT MIT License |
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* @link https://codeigniter.com |
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* @since Version 1.0.0 |
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* @filesource |
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*/ |
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defined('BASEPATH') OR exit('No direct script access allowed'); |
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/** |
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* CodeIgniter Calendar Class |
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* |
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* This class enables the creation of calendars |
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* |
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* @package CodeIgniter |
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* @subpackage Libraries |
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* @category Libraries |
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* @author EllisLab Dev Team |
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* @link https://codeigniter.com/user_guide/libraries/calendar.html |
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*/ |
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class CI_Calendar { |
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/** |
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* Calendar layout template |
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* |
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* @var mixed |
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*/ |
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public $template = ''; |
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/** |
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* Replacements array for template |
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* |
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* @var array |
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*/ |
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public $replacements = array(); |
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/** |
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* Day of the week to start the calendar on |
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* |
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* @var string |
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*/ |
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public $start_day = 'sunday'; |
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/** |
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* How to display months |
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* |
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* @var string |
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*/ |
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public $month_type = 'long'; |
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/** |
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* How to display names of days |
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* |
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* @var string |
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*/ |
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public $day_type = 'abr'; |
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/** |
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* Whether to show next/prev month links |
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* |
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* @var bool |
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*/ |
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public $show_next_prev = FALSE; |
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/** |
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* Url base to use for next/prev month links |
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* |
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* @var bool |
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*/ |
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public $next_prev_url = ''; |
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/** |
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* Show days of other months |
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* |
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* @var bool |
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*/ |
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public $show_other_days = FALSE; |
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// -------------------------------------------------------------------- |
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/** |
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* CI Singleton |
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* |
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* @var object |
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*/ |
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protected $CI; |
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// -------------------------------------------------------------------- |
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/** |
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* Class constructor |
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* |
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* Loads the calendar language file and sets the default time reference. |
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* |
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* @uses CI_Lang::$is_loaded |
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* |
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* @param array $config Calendar options |
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* @return void |
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*/ |
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public function __construct($config = array()) |
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{ |
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$this->CI =& get_instance(); |
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$this->CI->lang->load('calendar'); |
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empty($config) OR $this->initialize($config); |
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log_message('info', 'Calendar Class Initialized'); |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Initialize the user preferences |
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* |
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* Accepts an associative array as input, containing display preferences |
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* |
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* @param array config preferences |
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* @return CI_Calendar |
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*/ |
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public function initialize($config = array()) |
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{ |
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foreach ($config as $key => $val) |
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{ |
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if (isset($this->$key)) |
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{ |
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$this->$key = $val; |
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} |
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} |
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// Set the next_prev_url to the controller if required but not defined |
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if ($this->show_next_prev === TRUE && empty($this->next_prev_url)) |
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{ |
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$this->next_prev_url = $this->CI->config->site_url($this->CI->router->class.'/'.$this->CI->router->method); |
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} |
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return $this; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Generate the calendar |
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* |
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* @param int the year |
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* @param int the month |
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* @param array the data to be shown in the calendar cells |
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* @return string |
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*/ |
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public function generate($year = '', $month = '', $data = array()) |
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{ |
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$local_time = time(); |
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// Set and validate the supplied month/year |
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if (empty($year)) |
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{ |
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$year = date('Y', $local_time); |
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} |
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elseif (strlen($year) === 1) |
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{ |
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$year = '200'.$year; |
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} |
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elseif (strlen($year) === 2) |
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{ |
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$year = '20'.$year; |
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} |
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if (empty($month)) |
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{ |
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$month = date('m', $local_time); |
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} |
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elseif (strlen($month) === 1) |
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{ |
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$month = '0'.$month; |
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} |
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$adjusted_date = $this->adjust_date($month, $year); |
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$month = $adjusted_date['month']; |
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$year = $adjusted_date['year']; |
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// Determine the total days in the month |
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$total_days = $this->get_total_days($month, $year); |
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// Set the starting day of the week |
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$start_days = array('sunday' => 0, 'monday' => 1, 'tuesday' => 2, 'wednesday' => 3, 'thursday' => 4, 'friday' => 5, 'saturday' => 6); |
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$start_day = isset($start_days[$this->start_day]) ? $start_days[$this->start_day] : 0; |
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// Set the starting day number |
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$local_date = mktime(12, 0, 0, $month, 1, $year); |
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$date = getdate($local_date); |
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$day = $start_day + 1 - $date['wday']; |
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while ($day > 1) |
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{ |
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$day -= 7; |
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} |
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// Set the current month/year/day |
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// We use this to determine the "today" date |
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$cur_year = date('Y', $local_time); |
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$cur_month = date('m', $local_time); |
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$cur_day = date('j', $local_time); |
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$is_current_month = ($cur_year == $year && $cur_month == $month); |
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// Generate the template data array |
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$this->parse_template(); |
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// Begin building the calendar output |
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$out = $this->replacements['table_open']."\n\n".$this->replacements['heading_row_start']."\n"; |
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// "previous" month link |
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if ($this->show_next_prev === TRUE) |
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{ |
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// Add a trailing slash to the URL if needed |
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$this->next_prev_url = preg_replace('/(.+?)\/*$/', '\\1/', $this->next_prev_url); |
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$adjusted_date = $this->adjust_date($month - 1, $year); |
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$out .= str_replace('{previous_url}', $this->next_prev_url.$adjusted_date['year'].'/'.$adjusted_date['month'], $this->replacements['heading_previous_cell'])."\n"; |
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} |
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// Heading containing the month/year |
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$colspan = ($this->show_next_prev === TRUE) ? 5 : 7; |
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$this->replacements['heading_title_cell'] = str_replace('{colspan}', $colspan, |
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str_replace('{heading}', $this->get_month_name($month).' '.$year, $this->replacements['heading_title_cell'])); |
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$out .= $this->replacements['heading_title_cell']."\n"; |
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// "next" month link |
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if ($this->show_next_prev === TRUE) |
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{ |
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$adjusted_date = $this->adjust_date($month + 1, $year); |
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$out .= str_replace('{next_url}', $this->next_prev_url.$adjusted_date['year'].'/'.$adjusted_date['month'], $this->replacements['heading_next_cell']); |
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} |
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$out .= "\n".$this->replacements['heading_row_end']."\n\n" |
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// Write the cells containing the days of the week |
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.$this->replacements['week_row_start']."\n"; |
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$day_names = $this->get_day_names(); |
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for ($i = 0; $i < 7; $i ++) |
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{ |
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$out .= str_replace('{week_day}', $day_names[($start_day + $i) %7], $this->replacements['week_day_cell']); |
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} |
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$out .= "\n".$this->replacements['week_row_end']."\n"; |
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// Build the main body of the calendar |
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while ($day <= $total_days) |
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{ |
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$out .= "\n".$this->replacements['cal_row_start']."\n"; |
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for ($i = 0; $i < 7; $i++) |
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{ |
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if ($day > 0 && $day <= $total_days) |
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{ |
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$out .= ($is_current_month === TRUE && $day == $cur_day) ? $this->replacements['cal_cell_start_today'] : $this->replacements['cal_cell_start']; |
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if (isset($data[$day])) |
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{ |
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// Cells with content |
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$temp = ($is_current_month === TRUE && $day == $cur_day) ? |
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$this->replacements['cal_cell_content_today'] : $this->replacements['cal_cell_content']; |
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$out .= str_replace(array('{content}', '{day}'), array($data[$day], $day), $temp); |
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} |
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else |
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{ |
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// Cells with no content |
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$temp = ($is_current_month === TRUE && $day == $cur_day) ? |
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$this->replacements['cal_cell_no_content_today'] : $this->replacements['cal_cell_no_content']; |
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$out .= str_replace('{day}', $day, $temp); |
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} |
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$out .= ($is_current_month === TRUE && $day == $cur_day) ? $this->replacements['cal_cell_end_today'] : $this->replacements['cal_cell_end']; |
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} |
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elseif ($this->show_other_days === TRUE) |
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{ |
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$out .= $this->replacements['cal_cell_start_other']; |
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if ($day <= 0) |
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{ |
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// Day of previous month |
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$prev_month = $this->adjust_date($month - 1, $year); |
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$prev_month_days = $this->get_total_days($prev_month['month'], $prev_month['year']); |
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$out .= str_replace('{day}', $prev_month_days + $day, $this->replacements['cal_cell_other']); |
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} |
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else |
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{ |
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// Day of next month |
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$out .= str_replace('{day}', $day - $total_days, $this->replacements['cal_cell_other']); |
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} |
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$out .= $this->replacements['cal_cell_end_other']; |
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} |
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else |
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{ |
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// Blank cells |
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$out .= $this->replacements['cal_cell_start'].$this->replacements['cal_cell_blank'].$this->replacements['cal_cell_end']; |
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} |
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$day++; |
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} |
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$out .= "\n".$this->replacements['cal_row_end']."\n"; |
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} |
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return $out .= "\n".$this->replacements['table_close']; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Get Month Name |
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* |
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* Generates a textual month name based on the numeric |
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* month provided. |
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* |
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* @param int the month |
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* @return string |
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*/ |
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public function get_month_name($month) |
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{ |
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if ($this->month_type === 'short') |
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{ |
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$month_names = array('01' => 'cal_jan', '02' => 'cal_feb', '03' => 'cal_mar', '04' => 'cal_apr', '05' => 'cal_may', '06' => 'cal_jun', '07' => 'cal_jul', '08' => 'cal_aug', '09' => 'cal_sep', '10' => 'cal_oct', '11' => 'cal_nov', '12' => 'cal_dec'); |
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} |
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else |
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{ |
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$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'); |
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} |
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return ($this->CI->lang->line($month_names[$month]) === FALSE) |
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? ucfirst(substr($month_names[$month], 4)) |
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: $this->CI->lang->line($month_names[$month]); |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Get Day Names |
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* |
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* Returns an array of day names (Sunday, Monday, etc.) based |
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* on the type. Options: long, short, abr |
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* |
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* @param string |
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* @return array |
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*/ |
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public function get_day_names($day_type = '') |
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{ |
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if ($day_type !== '') |
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{ |
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$this->day_type = $day_type; |
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} |
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if ($this->day_type === 'long') |
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{ |
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$day_names = array('sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday'); |
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} |
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elseif ($this->day_type === 'short') |
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{ |
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$day_names = array('sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat'); |
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} |
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else |
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{ |
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$day_names = array('su', 'mo', 'tu', 'we', 'th', 'fr', 'sa'); |
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} |
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$days = array(); |
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for ($i = 0, $c = count($day_names); $i < $c; $i++) |
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{ |
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$days[] = ($this->CI->lang->line('cal_'.$day_names[$i]) === FALSE) ? ucfirst($day_names[$i]) : $this->CI->lang->line('cal_'.$day_names[$i]); |
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} |
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return $days; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Adjust Date |
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* |
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* This function makes sure that we have a valid month/year. |
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* For example, if you submit 13 as the month, the year will |
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* increment and the month will become January. |
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* |
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* @param int the month |
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* @param int the year |
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* @return array |
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*/ |
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public function adjust_date($month, $year) |
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{ |
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$date = array(); |
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$date['month'] = $month; |
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$date['year'] = $year; |
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while ($date['month'] > 12) |
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{ |
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$date['month'] -= 12; |
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$date['year']++; |
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} |
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while ($date['month'] <= 0) |
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{ |
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$date['month'] += 12; |
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$date['year']--; |
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} |
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if (strlen($date['month']) === 1) |
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{ |
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$date['month'] = '0'.$date['month']; |
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} |
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return $date; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Total days in a given month |
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* |
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* @param int the month |
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* @param int the year |
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* @return int |
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*/ |
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public function get_total_days($month, $year) |
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{ |
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$this->CI->load->helper('date'); |
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return days_in_month($month, $year); |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Set Default Template Data |
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* |
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* This is used in the event that the user has not created their own template |
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* |
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* @return array |
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*/ |
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public function default_template() |
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{ |
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return array( |
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'table_open' => '<table border="0" cellpadding="4" cellspacing="0">', |
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'heading_row_start' => '<tr>', |
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'heading_previous_cell' => '<th><a href="{previous_url}"><<</a></th>', |
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'heading_title_cell' => '<th colspan="{colspan}">{heading}</th>', |
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'heading_next_cell' => '<th><a href="{next_url}">>></a></th>', |
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'heading_row_end' => '</tr>', |
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'week_row_start' => '<tr>', |
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'week_day_cell' => '<td>{week_day}</td>', |
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'week_row_end' => '</tr>', |
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'cal_row_start' => '<tr>', |
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'cal_cell_start' => '<td>', |
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'cal_cell_start_today' => '<td>', |
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'cal_cell_start_other' => '<td style="color: #666;">', |
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'cal_cell_content' => '<a href="{content}">{day}</a>', |
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'cal_cell_content_today' => '<a href="{content}"><strong>{day}</strong></a>', |
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'cal_cell_no_content' => '{day}', |
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'cal_cell_no_content_today' => '<strong>{day}</strong>', |
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'cal_cell_blank' => ' ', |
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'cal_cell_other' => '{day}', |
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'cal_cell_end' => '</td>', |
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'cal_cell_end_today' => '</td>', |
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'cal_cell_end_other' => '</td>', |
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'cal_row_end' => '</tr>', |
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'table_close' => '</table>' |
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); |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Parse Template |
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* |
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* Harvests the data within the template {pseudo-variables} |
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* used to display the calendar |
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* |
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* @return CI_Calendar |
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*/ |
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public function parse_template() |
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{ |
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$this->replacements = $this->default_template(); |
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if (empty($this->template)) |
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{ |
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return $this; |
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} |
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if (is_string($this->template)) |
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{ |
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$today = array('cal_cell_start_today', 'cal_cell_content_today', 'cal_cell_no_content_today', 'cal_cell_end_today'); |
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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', 'cal_cell_start_other', 'cal_cell_other', 'cal_cell_end_other') as $val) |
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{ |
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if (preg_match('/\{'.$val.'\}(.*?)\{\/'.$val.'\}/si', $this->template, $match)) |
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{ |
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$this->replacements[$val] = $match[1]; |
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} |
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elseif (in_array($val, $today, TRUE)) |
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{ |
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$this->replacements[$val] = $this->replacements[substr($val, 0, -6)]; |
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} |
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} |
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} |
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elseif (is_array($this->template)) |
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{ |
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$this->replacements = array_merge($this->replacements, $this->template); |
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} |
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return $this; |
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} |
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}
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