548 lines
15 KiB
PHP
548 lines
15 KiB
PHP
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<?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) 2019 - 2022, CodeIgniter Foundation
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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 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
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* @copyright Copyright (c) 2019 - 2022, CodeIgniter Foundation (https://codeigniter.com/)
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* @license https://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/userguide3/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[$month]);
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}
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// --------------------------------------------------------------------
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/**
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* Get Day Names
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*
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* Returns an array of day names (Sunday, Monday, etc.) based
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* on the type. Options: long, short, abr
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*
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* @param string
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function get_day_names($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)
|
||
|
|
{
|
||
|
|
$this->CI->load->helper('date');
|
||
|
|
return days_in_month($month, $year);
|
||
|
|
}
|
||
|
|
|
||
|
|
// --------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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_start_other' => '<td style="color: #666;">',
|
||
|
|
'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_other' => '{day}',
|
||
|
|
'cal_cell_end' => '</td>',
|
||
|
|
'cal_cell_end_today' => '</td>',
|
||
|
|
'cal_cell_end_other' => '</td>',
|
||
|
|
'cal_row_end' => '</tr>',
|
||
|
|
'table_close' => '</table>'
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
// --------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Parse Template
|
||
|
|
*
|
||
|
|
* Harvests the data within the template {pseudo-variables}
|
||
|
|
* used to display the calendar
|
||
|
|
*
|
||
|
|
* @return CI_Calendar
|
||
|
|
*/
|
||
|
|
public function parse_template()
|
||
|
|
{
|
||
|
|
$this->replacements = $this->default_template();
|
||
|
|
|
||
|
|
if (empty($this->template))
|
||
|
|
{
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (is_string($this->template))
|
||
|
|
{
|
||
|
|
$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', 'cal_cell_start_other', 'cal_cell_other', 'cal_cell_end_other') as $val)
|
||
|
|
{
|
||
|
|
if (preg_match('/\{'.$val.'\}(.*?)\{\/'.$val.'\}/si', $this->template, $match))
|
||
|
|
{
|
||
|
|
$this->replacements[$val] = $match[1];
|
||
|
|
}
|
||
|
|
elseif (in_array($val, $today, TRUE))
|
||
|
|
{
|
||
|
|
$this->replacements[$val] = $this->replacements[substr($val, 0, -6)];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elseif (is_array($this->template))
|
||
|
|
{
|
||
|
|
$this->replacements = array_merge($this->replacements, $this->template);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|