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   1  <?php
   2  /**
   3   * Smarty plugin
   4   * @package Smarty
   5   * @subpackage plugins
   6   */
   7  
   8  /**
   9   * Smarty {html_select_date} plugin
  10   *
  11   * Type:     function<br>
  12   * Name:     html_select_date<br>
  13   * Purpose:  Prints the dropdowns for date selection.
  14   *
  15   * ChangeLog:<br>
  16   *           - 1.0 initial release
  17   *           - 1.1 added support for +/- N syntax for begin
  18   *                and end year values. (Monte)
  19   *           - 1.2 added support for yyyy-mm-dd syntax for
  20   *                time value. (Jan Rosier)
  21   *           - 1.3 added support for choosing format for
  22   *                month values (Gary Loescher)
  23   *           - 1.3.1 added support for choosing format for
  24   *                day values (Marcus Bointon)
  25   *           - 1.3.2 suppport negative timestamps, force year
  26   *             dropdown to include given date unless explicitly set (Monte)
  27   * @link http://smarty.php.net/manual/en/language.function.html.select.date.php {html_select_date}
  28   *      (Smarty online manual)
  29   * @version 1.3.2
  30   * @author   Andrei Zmievski
  31   * @param array
  32   * @param Smarty
  33   * @return string
  34   */
  35  function smarty_function_html_select_date($params, &$smarty)
  36  {
  37      require_once $smarty->_get_plugin_filepath('shared','make_timestamp');
  38      require_once $smarty->_get_plugin_filepath('function','html_options');
  39      /* Default values. */
  40      $prefix          = "Date_";
  41      $start_year      = strftime("%Y");
  42      $end_year        = $start_year;
  43      $display_days    = true;
  44      $display_months  = true;
  45      $display_years   = true;
  46      $month_format    = "%B";
  47      /* Write months as numbers by default  GL */
  48      $month_value_format = "%m";
  49      $day_format      = "%02d";
  50      /* Write day values using this format MB */
  51      $day_value_format = "%d";
  52      $year_as_text    = false;
  53      /* Display years in reverse order? Ie. 2000,1999,.... */
  54      $reverse_years   = false;
  55      /* Should the select boxes be part of an array when returned from PHP?
  56         e.g. setting it to "birthday", would create "birthday[Day]",
  57         "birthday[Month]" & "birthday[Year]". Can be combined with prefix */
  58      $field_array     = null;
  59      /* <select size>'s of the different <select> tags.
  60         If not set, uses default dropdown. */
  61      $day_size        = null;
  62      $month_size      = null;
  63      $year_size       = null;
  64      /* Unparsed attributes common to *ALL* the <select>/<input> tags.
  65         An example might be in the template: all_extra ='class ="foo"'. */
  66      $all_extra       = null;
  67      /* Separate attributes for the tags. */
  68      $day_extra       = null;
  69      $month_extra     = null;
  70      $year_extra      = null;
  71      /* Order in which to display the fields.
  72         "D" -> day, "M" -> month, "Y" -> year. */
  73      $field_order     = 'MDY';
  74      /* String printed between the different fields. */
  75      $field_separator = "\n";
  76      $time = time();
  77      $all_empty       = null;
  78      $day_empty       = null;
  79      $month_empty     = null;
  80      $year_empty      = null;
  81  
  82      foreach ($params as $_key=>$_value) {
  83          switch ($_key) {
  84              case 'prefix':
  85              case 'time':
  86              case 'start_year':
  87              case 'end_year':
  88              case 'month_format':
  89              case 'day_format':
  90              case 'day_value_format':
  91              case 'field_array':
  92              case 'day_size':
  93              case 'month_size':
  94              case 'year_size':
  95              case 'all_extra':
  96              case 'day_extra':
  97              case 'month_extra':
  98              case 'year_extra':
  99              case 'field_order':
 100              case 'field_separator':
 101              case 'month_value_format':
 102              case 'month_empty':
 103              case 'day_empty':
 104              case 'year_empty':
 105                  $$_key = (string)$_value;
 106                  break;
 107  
 108              case 'all_empty':
 109                  $$_key = (string)$_value;
 110                  $day_empty = $month_empty = $year_empty = $all_empty;
 111                  break;
 112  
 113              case 'display_days':
 114              case 'display_months':
 115              case 'display_years':
 116              case 'year_as_text':
 117              case 'reverse_years':
 118                  $$_key = (bool)$_value;
 119                  break;
 120  
 121              default:
 122                  $smarty->trigger_error("[html_select_date] unknown parameter $_key", E_USER_WARNING);
 123  
 124          }
 125      }
 126  
 127      if(preg_match('!^-\d+$!',$time)) {
 128          // negative timestamp, use date()
 129          $time = date('Y-m-d',$time);
 130      }
 131      // If $time is not in format yyyy-mm-dd
 132      if (!preg_match('/^\d{0,4}-\d{0,2}-\d{0,2}$/', $time)) {
 133          // use smarty_make_timestamp to get an unix timestamp and
 134          // strftime to make yyyy-mm-dd
 135          $time = strftime('%Y-%m-%d', smarty_make_timestamp($time));
 136      }
 137      // Now split this in pieces, which later can be used to set the select
 138      $time = explode("-", $time);
 139      
 140      // make syntax "+N" or "-N" work with start_year and end_year
 141      if (preg_match('!^(\+|\-)\s*(\d+)$!', $end_year, $match)) {
 142          if ($match[1] == '+') {
 143              $end_year = strftime('%Y') + $match[2];
 144          } else {
 145              $end_year = strftime('%Y') - $match[2];
 146          }
 147      }
 148      if (preg_match('!^(\+|\-)\s*(\d+)$!', $start_year, $match)) {
 149          if ($match[1] == '+') {
 150              $start_year = strftime('%Y') + $match[2];
 151          } else {
 152              $start_year = strftime('%Y') - $match[2];
 153          }
 154      }
 155      if (strlen($time[0]) > 0) { 
 156          if ($start_year > $time[0] && !isset($params['start_year'])) {
 157              // force start year to include given date if not explicitly set
 158              $start_year = $time[0];
 159          }
 160          if($end_year < $time[0] && !isset($params['end_year'])) {
 161              // force end year to include given date if not explicitly set
 162              $end_year = $time[0];
 163          }
 164      }
 165  
 166      $field_order = strtoupper($field_order);
 167  
 168      $html_result = $month_result = $day_result = $year_result = "";
 169  
 170      if ($display_months) {
 171          $month_names = array();
 172          $month_values = array();
 173          if(isset($month_empty)) {
 174              $month_names[''] = $month_empty;
 175              $month_values[''] = '';
 176          }
 177          for ($i = 1; $i <= 12; $i++) {
 178              $month_names[$i] = strftime($month_format, mktime(0, 0, 0, $i, 1, 2000));
 179              $month_values[$i] = strftime($month_value_format, mktime(0, 0, 0, $i, 1, 2000));
 180          }
 181  
 182          $month_result .= '<select name=';
 183          if (null !== $field_array){
 184              $month_result .= '"' . $field_array . '[' . $prefix . 'Month]"';
 185          } else {
 186              $month_result .= '"' . $prefix . 'Month"';
 187          }
 188          if (null !== $month_size){
 189              $month_result .= ' size="' . $month_size . '"';
 190          }
 191          if (null !== $month_extra){
 192              $month_result .= ' ' . $month_extra;
 193          }
 194          if (null !== $all_extra){
 195              $month_result .= ' ' . $all_extra;
 196          }
 197          $month_result .= '>'."\n";
 198  
 199          $month_result .= smarty_function_html_options(array('output'     => $month_names,
 200                                                              'values'     => $month_values,
 201                                                              'selected'   => $a=$time[1] ? strftime($month_value_format, mktime(0, 0, 0, (int)$time[1], 1, 2000)) : '',
 202                                                              'print_result' => false),
 203                                                        $smarty);
 204          $month_result .= '</select>';
 205      }
 206  
 207      if ($display_days) {
 208          $days = array();
 209          if (isset($day_empty)) {
 210              $days[''] = $day_empty;
 211              $day_values[''] = '';
 212          }
 213          for ($i = 1; $i <= 31; $i++) {
 214              $days[] = sprintf($day_format, $i);
 215              $day_values[] = sprintf($day_value_format, $i);
 216          }
 217  
 218          $day_result .= '<select name=';
 219          if (null !== $field_array){
 220              $day_result .= '"' . $field_array . '[' . $prefix . 'Day]"';
 221          } else {
 222              $day_result .= '"' . $prefix . 'Day"';
 223          }
 224          if (null !== $day_size){
 225              $day_result .= ' size="' . $day_size . '"';
 226          }
 227          if (null !== $all_extra){
 228              $day_result .= ' ' . $all_extra;
 229          }
 230          if (null !== $day_extra){
 231              $day_result .= ' ' . $day_extra;
 232          }
 233          $day_result .= '>'."\n";
 234          $day_result .= smarty_function_html_options(array('output'     => $days,
 235                                                            'values'     => $day_values,
 236                                                            'selected'   => $time[2],
 237                                                            'print_result' => false),
 238                                                      $smarty);
 239          $day_result .= '</select>';
 240      }
 241  
 242      if ($display_years) {
 243          if (null !== $field_array){
 244              $year_name = $field_array . '[' . $prefix . 'Year]';
 245          } else {
 246              $year_name = $prefix . 'Year';
 247          }
 248          if ($year_as_text) {
 249              $year_result .= '<input type="text" name="' . $year_name . '" value="' . $time[0] . '" size="4" maxlength="4"';
 250              if (null !== $all_extra){
 251                  $year_result .= ' ' . $all_extra;
 252              }
 253              if (null !== $year_extra){
 254                  $year_result .= ' ' . $year_extra;
 255              }
 256              $year_result .= '>';
 257          } else {
 258              $years = range((int)$start_year, (int)$end_year);
 259              if ($reverse_years) {
 260                  rsort($years, SORT_NUMERIC);
 261              } else {
 262                  sort($years, SORT_NUMERIC);
 263              }
 264              $yearvals = $years;
 265              if(isset($year_empty)) {
 266                  array_unshift($years, $year_empty);
 267                  array_unshift($yearvals, '');
 268              }
 269              $year_result .= '<select name="' . $year_name . '"';
 270              if (null !== $year_size){
 271                  $year_result .= ' size="' . $year_size . '"';
 272              }
 273              if (null !== $all_extra){
 274                  $year_result .= ' ' . $all_extra;
 275              }
 276              if (null !== $year_extra){
 277                  $year_result .= ' ' . $year_extra;
 278              }
 279              $year_result .= '>'."\n";
 280              $year_result .= smarty_function_html_options(array('output' => $years,
 281                                                                 'values' => $yearvals,
 282                                                                 'selected'   => $time[0],
 283                                                                 'print_result' => false),
 284                                                           $smarty);
 285              $year_result .= '</select>';
 286          }
 287      }
 288  
 289      // Loop thru the field_order field
 290      for ($i = 0; $i <= 2; $i++){
 291          $c = substr($field_order, $i, 1);
 292          switch ($c){
 293              case 'D':
 294                  $html_result .= $day_result;
 295                  break;
 296  
 297              case 'M':
 298                  $html_result .= $month_result;
 299                  break;
 300  
 301              case 'Y':
 302                  $html_result .= $year_result;
 303                  break;
 304          }
 305          // Add the field seperator
 306          if($i != 2) {
 307              $html_result .= $field_separator;
 308          }
 309      }
 310  
 311      return $html_result;
 312  }
 313  
 314  /* vim: set expandtab: */
 315  
 316  ?>