| [289] | 1 | <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); |
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| 2 | /** |
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| 3 | * CodeIgniter |
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| 4 | * |
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| 5 | * An open source application development framework for PHP 5.1.6 or newer |
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| 6 | * |
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| 7 | * @package CodeIgniter |
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| 8 | * @author ExpressionEngine Dev Team |
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| 9 | * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. |
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| 10 | * @license http://codeigniter.com/user_guide/license.html |
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| 11 | * @link http://codeigniter.com |
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| 12 | * @since Version 1.0 |
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| 13 | * @filesource |
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| 14 | */ |
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| 15 | |
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| 16 | // ------------------------------------------------------------------------ |
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| 17 | |
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| 18 | /** |
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| 19 | * CodeIgniter Calendar Class |
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| 20 | * |
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| 21 | * This class enables the creation of calendars |
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| 22 | * |
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| 23 | * @package CodeIgniter |
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| 24 | * @subpackage Libraries |
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| 25 | * @category Libraries |
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| 26 | * @author ExpressionEngine Dev Team |
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| 27 | * @link http://codeigniter.com/user_guide/libraries/calendar.html |
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| 28 | */ |
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| 29 | class CI_Calendar { |
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| 30 | |
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| 31 | var $CI; |
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| 32 | var $lang; |
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| 33 | var $local_time; |
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| 34 | var $template = ''; |
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| 35 | var $start_day = 'sunday'; |
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| 36 | var $month_type = 'long'; |
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| 37 | var $day_type = 'abr'; |
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| 38 | var $show_next_prev = FALSE; |
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| 39 | var $next_prev_url = ''; |
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| 40 | |
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| 41 | /** |
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| 42 | * Constructor |
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| 43 | * |
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| 44 | * Loads the calendar language file and sets the default time reference |
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| 45 | */ |
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| 46 | public function __construct($config = array()) |
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| 47 | { |
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| 48 | $this->CI =& get_instance(); |
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| 49 | |
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| 50 | if ( ! in_array('calendar_lang.php', $this->CI->lang->is_loaded, TRUE)) |
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| 51 | { |
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| 52 | $this->CI->lang->load('calendar'); |
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| 53 | } |
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| 54 | |
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| 55 | $this->local_time = time(); |
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| 56 | |
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| 57 | if (count($config) > 0) |
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| 58 | { |
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| 59 | $this->initialize($config); |
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| 60 | } |
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| 61 | |
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| 62 | log_message('debug', "Calendar Class Initialized"); |
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| 63 | } |
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| 64 | |
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| 65 | // -------------------------------------------------------------------- |
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| 66 | |
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| 67 | /** |
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| 68 | * Initialize the user preferences |
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| 69 | * |
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| 70 | * Accepts an associative array as input, containing display preferences |
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| 71 | * |
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| 72 | * @access public |
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| 73 | * @param array config preferences |
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| 74 | * @return void |
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| 75 | */ |
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| 76 | function initialize($config = array()) |
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| 77 | { |
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| 78 | foreach ($config as $key => $val) |
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| 79 | { |
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| 80 | if (isset($this->$key)) |
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| 81 | { |
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| 82 | $this->$key = $val; |
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| 83 | } |
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| 84 | } |
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| 85 | } |
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| 86 | |
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| 87 | // -------------------------------------------------------------------- |
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| 88 | |
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| 89 | /** |
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| 90 | * Generate the calendar |
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| 91 | * |
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| 92 | * @access public |
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| 93 | * @param integer the year |
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| 94 | * @param integer the month |
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| 95 | * @param array the data to be shown in the calendar cells |
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| 96 | * @return string |
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| 97 | */ |
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| 98 | function generate($year = '', $month = '', $data = array()) |
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| 99 | { |
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| 100 | // Set and validate the supplied month/year |
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| 101 | if ($year == '') |
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| 102 | $year = date("Y", $this->local_time); |
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| 103 | |
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| 104 | if ($month == '') |
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| 105 | $month = date("m", $this->local_time); |
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| 106 | |
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| 107 | if (strlen($year) == 1) |
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| 108 | $year = '200'.$year; |
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| 109 | |
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| 110 | if (strlen($year) == 2) |
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| 111 | $year = '20'.$year; |
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| 112 | |
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| 113 | if (strlen($month) == 1) |
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| 114 | $month = '0'.$month; |
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| 115 | |
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| 116 | $adjusted_date = $this->adjust_date($month, $year); |
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| 117 | |
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| 118 | $month = $adjusted_date['month']; |
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| 119 | $year = $adjusted_date['year']; |
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| 120 | |
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| 121 | // Determine the total days in the month |
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| 122 | $total_days = $this->get_total_days($month, $year); |
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| 123 | |
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| 124 | // Set the starting day of the week |
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| 125 | $start_days = array('sunday' => 0, 'monday' => 1, 'tuesday' => 2, 'wednesday' => 3, 'thursday' => 4, 'friday' => 5, 'saturday' => 6); |
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| 126 | $start_day = ( ! isset($start_days[$this->start_day])) ? 0 : $start_days[$this->start_day]; |
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| 127 | |
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| 128 | // Set the starting day number |
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| 129 | $local_date = mktime(12, 0, 0, $month, 1, $year); |
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| 130 | $date = getdate($local_date); |
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| 131 | $day = $start_day + 1 - $date["wday"]; |
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| 132 | |
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| 133 | while ($day > 1) |
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| 134 | { |
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| 135 | $day -= 7; |
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| 136 | } |
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| 137 | |
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| 138 | // Set the current month/year/day |
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| 139 | // We use this to determine the "today" date |
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| 140 | $cur_year = date("Y", $this->local_time); |
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| 141 | $cur_month = date("m", $this->local_time); |
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| 142 | $cur_day = date("j", $this->local_time); |
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| 143 | |
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| 144 | $is_current_month = ($cur_year == $year AND $cur_month == $month) ? TRUE : FALSE; |
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| 145 | |
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| 146 | // Generate the template data array |
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| 147 | $this->parse_template(); |
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| 148 | |
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| 149 | // Begin building the calendar output |
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| 150 | $out = $this->temp['table_open']; |
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| 151 | $out .= "\n"; |
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| 152 | |
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| 153 | $out .= "\n"; |
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| 154 | $out .= $this->temp['heading_row_start']; |
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| 155 | $out .= "\n"; |
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| 156 | |
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| 157 | // "previous" month link |
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| 158 | if ($this->show_next_prev == TRUE) |
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| 159 | { |
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| 160 | // Add a trailing slash to the URL if needed |
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| 161 | $this->next_prev_url = preg_replace("/(.+?)\/*$/", "\\1/", $this->next_prev_url); |
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| 162 | |
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| 163 | $adjusted_date = $this->adjust_date($month - 1, $year); |
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| 164 | $out .= str_replace('{previous_url}', $this->next_prev_url.$adjusted_date['year'].'/'.$adjusted_date['month'], $this->temp['heading_previous_cell']); |
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| 165 | $out .= "\n"; |
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| 166 | } |
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| 167 | |
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| 168 | // Heading containing the month/year |
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| 169 | $colspan = ($this->show_next_prev == TRUE) ? 5 : 7; |
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| 170 | |
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| 171 | $this->temp['heading_title_cell'] = str_replace('{colspan}', $colspan, $this->temp['heading_title_cell']); |
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| 172 | $this->temp['heading_title_cell'] = str_replace('{heading}', $this->get_month_name($month)." ".$year, $this->temp['heading_title_cell']); |
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| 173 | |
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| 174 | $out .= $this->temp['heading_title_cell']; |
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| 175 | $out .= "\n"; |
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| 176 | |
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| 177 | // "next" month link |
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| 178 | if ($this->show_next_prev == TRUE) |
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| 179 | { |
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| 180 | $adjusted_date = $this->adjust_date($month + 1, $year); |
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| 181 | $out .= str_replace('{next_url}', $this->next_prev_url.$adjusted_date['year'].'/'.$adjusted_date['month'], $this->temp['heading_next_cell']); |
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| 182 | } |
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| 183 | |
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| 184 | $out .= "\n"; |
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| 185 | $out .= $this->temp['heading_row_end']; |
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| 186 | $out .= "\n"; |
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| 187 | |
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| 188 | // Write the cells containing the days of the week |
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| 189 | $out .= "\n"; |
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| 190 | $out .= $this->temp['week_row_start']; |
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| 191 | $out .= "\n"; |
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| 192 | |
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| 193 | $day_names = $this->get_day_names(); |
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| 194 | |
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| 195 | for ($i = 0; $i < 7; $i ++) |
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| 196 | { |
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| 197 | $out .= str_replace('{week_day}', $day_names[($start_day + $i) %7], $this->temp['week_day_cell']); |
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| 198 | } |
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| 199 | |
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| 200 | $out .= "\n"; |
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| 201 | $out .= $this->temp['week_row_end']; |
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| 202 | $out .= "\n"; |
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| 203 | |
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| 204 | // Build the main body of the calendar |
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| 205 | while ($day <= $total_days) |
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| 206 | { |
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| 207 | $out .= "\n"; |
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| 208 | $out .= $this->temp['cal_row_start']; |
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| 209 | $out .= "\n"; |
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| 210 | |
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| 211 | for ($i = 0; $i < 7; $i++) |
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| 212 | { |
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| 213 | $out .= ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_start_today'] : $this->temp['cal_cell_start']; |
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| 214 | |
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| 215 | if ($day > 0 AND $day <= $total_days) |
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| 216 | { |
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| 217 | if (isset($data[$day])) |
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| 218 | { |
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| 219 | // Cells with content |
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| 220 | $temp = ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_content_today'] : $this->temp['cal_cell_content']; |
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| 221 | $out .= str_replace('{day}', $day, str_replace('{content}', $data[$day], $temp)); |
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| 222 | } |
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| 223 | else |
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| 224 | { |
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| 225 | // Cells with no content |
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| 226 | $temp = ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_no_content_today'] : $this->temp['cal_cell_no_content']; |
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| 227 | $out .= str_replace('{day}', $day, $temp); |
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| 228 | } |
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| 229 | } |
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| 230 | else |
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| 231 | { |
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| 232 | // Blank cells |
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| 233 | $out .= $this->temp['cal_cell_blank']; |
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| 234 | } |
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| 235 | |
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| 236 | $out .= ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_end_today'] : $this->temp['cal_cell_end']; |
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| 237 | $day++; |
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| 238 | } |
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| 239 | |
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| 240 | $out .= "\n"; |
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| 241 | $out .= $this->temp['cal_row_end']; |
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| 242 | $out .= "\n"; |
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| 243 | } |
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| 244 | |
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| 245 | $out .= "\n"; |
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| 246 | $out .= $this->temp['table_close']; |
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| 247 | |
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| 248 | return $out; |
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| 249 | } |
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| 250 | |
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| 251 | // -------------------------------------------------------------------- |
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| 252 | |
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| 253 | /** |
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| 254 | * Get Month Name |
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| 255 | * |
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| 256 | * Generates a textual month name based on the numeric |
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| 257 | * month provided. |
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| 258 | * |
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| 259 | * @access public |
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| 260 | * @param integer the month |
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| 261 | * @return string |
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| 262 | */ |
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| 263 | function get_month_name($month) |
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| 264 | { |
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| 265 | if ($this->month_type == 'short') |
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| 266 | { |
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| 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'); |
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| 268 | } |
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| 269 | else |
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| 270 | { |
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| 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'); |
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| 272 | } |
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| 273 | |
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| 274 | $month = $month_names[$month]; |
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| 275 | |
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| 276 | if ($this->CI->lang->line($month) === FALSE) |
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| 277 | { |
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| 278 | return ucfirst(str_replace('cal_', '', $month)); |
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| 279 | } |
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| 280 | |
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| 281 | return $this->CI->lang->line($month); |
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| 282 | } |
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| 283 | |
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| 284 | // -------------------------------------------------------------------- |
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| 285 | |
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| 286 | /** |
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| 287 | * Get Day Names |
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| 288 | * |
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| 289 | * Returns an array of day names (Sunday, Monday, etc.) based |
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| 290 | * on the type. Options: long, short, abrev |
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| 291 | * |
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| 292 | * @access public |
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| 293 | * @param string |
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| 294 | * @return array |
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| 295 | */ |
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| 296 | function get_day_names($day_type = '') |
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| 297 | { |
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| 298 | if ($day_type != '') |
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| 299 | $this->day_type = $day_type; |
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| 300 | |
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| 301 | if ($this->day_type == 'long') |
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| 302 | { |
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| 303 | $day_names = array('sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday'); |
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| 304 | } |
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| 305 | elseif ($this->day_type == 'short') |
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| 306 | { |
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| 307 | $day_names = array('sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat'); |
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| 308 | } |
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| 309 | else |
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| 310 | { |
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| 311 | $day_names = array('su', 'mo', 'tu', 'we', 'th', 'fr', 'sa'); |
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| 312 | } |
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| 313 | |
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| 314 | $days = array(); |
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| 315 | foreach ($day_names as $val) |
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| 316 | { |
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| 317 | $days[] = ($this->CI->lang->line('cal_'.$val) === FALSE) ? ucfirst($val) : $this->CI->lang->line('cal_'.$val); |
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| 318 | } |
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| 319 | |
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| 320 | return $days; |
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| 321 | } |
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| 322 | |
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| 323 | // -------------------------------------------------------------------- |
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| 324 | |
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| 325 | /** |
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| 326 | * Adjust Date |
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| 327 | * |
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| 328 | * This function makes sure that we have a valid month/year. |
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| 329 | * For example, if you submit 13 as the month, the year will |
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| 330 | * increment and the month will become January. |
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| 331 | * |
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| 332 | * @access public |
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| 333 | * @param integer the month |
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| 334 | * @param integer the year |
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| 335 | * @return array |
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| 336 | */ |
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| 337 | function adjust_date($month, $year) |
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| 338 | { |
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| 339 | $date = array(); |
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| 340 | |
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| 341 | $date['month'] = $month; |
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| 342 | $date['year'] = $year; |
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| 343 | |
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| 344 | while ($date['month'] > 12) |
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| 345 | { |
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| 346 | $date['month'] -= 12; |
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| 347 | $date['year']++; |
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| 348 | } |
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| 349 | |
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| 350 | while ($date['month'] <= 0) |
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| 351 | { |
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| 352 | $date['month'] += 12; |
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| 353 | $date['year']--; |
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| 354 | } |
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| 355 | |
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| 356 | if (strlen($date['month']) == 1) |
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| 357 | { |
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| 358 | $date['month'] = '0'.$date['month']; |
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| 359 | } |
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| 360 | |
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| 361 | return $date; |
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| 362 | } |
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| 363 | |
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| 364 | // -------------------------------------------------------------------- |
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| 365 | |
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| 366 | /** |
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| 367 | * Total days in a given month |
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| 368 | * |
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| 369 | * @access public |
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| 370 | * @param integer the month |
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| 371 | * @param integer the year |
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| 372 | * @return integer |
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| 373 | */ |
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| 374 | function get_total_days($month, $year) |
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| 375 | { |
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| 376 | $days_in_month = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); |
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| 377 | |
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| 378 | if ($month < 1 OR $month > 12) |
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| 379 | { |
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| 380 | return 0; |
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| 381 | } |
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| 382 | |
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| 383 | // Is the year a leap year? |
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| 384 | if ($month == 2) |
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| 385 | { |
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| 386 | if ($year % 400 == 0 OR ($year % 4 == 0 AND $year % 100 != 0)) |
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| 387 | { |
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| 388 | return 29; |
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| 389 | } |
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| 390 | } |
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| 391 | |
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| 392 | return $days_in_month[$month - 1]; |
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| 393 | } |
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| 394 | |
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| 395 | // -------------------------------------------------------------------- |
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| 396 | |
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| 397 | /** |
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| 398 | * Set Default Template Data |
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| 399 | * |
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| 400 | * This is used in the event that the user has not created their own template |
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| 401 | * |
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| 402 | * @access public |
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| 403 | * @return array |
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| 404 | */ |
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| 405 | function default_template() |
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| 406 | { |
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| 407 | return array ( |
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| 408 | 'table_open' => '<table border="0" cellpadding="4" cellspacing="0">', |
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| 409 | 'heading_row_start' => '<tr>', |
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| 410 | 'heading_previous_cell' => '<th><a href="{previous_url}"><<</a></th>', |
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| 411 | 'heading_title_cell' => '<th colspan="{colspan}">{heading}</th>', |
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| 412 | 'heading_next_cell' => '<th><a href="{next_url}">>></a></th>', |
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| 413 | 'heading_row_end' => '</tr>', |
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| 414 | 'week_row_start' => '<tr>', |
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| 415 | 'week_day_cell' => '<td>{week_day}</td>', |
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| 416 | 'week_row_end' => '</tr>', |
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| 417 | 'cal_row_start' => '<tr>', |
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| 418 | 'cal_cell_start' => '<td>', |
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| 419 | 'cal_cell_start_today' => '<td>', |
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| 420 | 'cal_cell_content' => '<a href="{content}">{day}</a>', |
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| 421 | 'cal_cell_content_today' => '<a href="{content}"><strong>{day}</strong></a>', |
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| 422 | 'cal_cell_no_content' => '{day}', |
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| 423 | 'cal_cell_no_content_today' => '<strong>{day}</strong>', |
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| 424 | 'cal_cell_blank' => ' ', |
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| 425 | 'cal_cell_end' => '</td>', |
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| 426 | 'cal_cell_end_today' => '</td>', |
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| 427 | 'cal_row_end' => '</tr>', |
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| 428 | 'table_close' => '</table>' |
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| 429 | ); |
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| 430 | } |
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| 431 | |
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| 432 | // -------------------------------------------------------------------- |
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| 433 | |
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| 434 | /** |
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| 435 | * Parse Template |
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| 436 | * |
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| 437 | * Harvests the data within the template {pseudo-variables} |
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| 438 | * used to display the calendar |
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| 439 | * |
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| 440 | * @access public |
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| 441 | * @return void |
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| 442 | */ |
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| 443 | function parse_template() |
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| 444 | { |
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| 445 | $this->temp = $this->default_template(); |
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| 446 | |
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| 447 | if ($this->template == '') |
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| 448 | { |
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| 449 | return; |
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| 450 | } |
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| 451 | |
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| 452 | $today = array('cal_cell_start_today', 'cal_cell_content_today', 'cal_cell_no_content_today', 'cal_cell_end_today'); |
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| 453 | |
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| 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 $val) |
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| 455 | { |
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| 456 | if (preg_match("/\{".$val."\}(.*?)\{\/".$val."\}/si", $this->template, $match)) |
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| 457 | { |
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| 458 | $this->temp[$val] = $match['1']; |
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| 459 | } |
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| 460 | else |
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| 461 | { |
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| 462 | if (in_array($val, $today, TRUE)) |
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| 463 | { |
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| 464 | $this->temp[$val] = $this->temp[str_replace('_today', '', $val)]; |
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| 465 | } |
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| 466 | } |
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| 467 | } |
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| 468 | } |
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| 469 | |
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| 470 | } |
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| 471 | |
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| 472 | // END CI_Calendar class |
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| 473 | |
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| 474 | /* End of file Calendar.php */ |
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| 475 | /* Location: ./system/libraries/Calendar.php */ |
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