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   1  <?php
   2  ///////////////////////////////////////////////////////////////////////////
   3  //                                                                       //
   4  // NOTICE OF COPYRIGHT                                                   //
   5  //                                                                       //
   6  // Moodle - Modular Object-Oriented Dynamic Learning Environment         //
   7  //          http://moodle.org                                            //
   8  //                                                                       //
   9  // Copyright (C) 1999-onwards Moodle Pty Ltd  http://moodle.com          //
  10  //                                                                       //
  11  // This program is free software; you can redistribute it and/or modify  //
  12  // it under the terms of the GNU General Public License as published by  //
  13  // the Free Software Foundation; either version 2 of the License, or     //
  14  // (at your option) any later version.                                   //
  15  //                                                                       //
  16  // This program is distributed in the hope that it will be useful,       //
  17  // but WITHOUT ANY WARRANTY; without even the implied warranty of        //
  18  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         //
  19  // GNU General Public License for more details:                          //
  20  //                                                                       //
  21  //          http://www.gnu.org/copyleft/gpl.html                         //
  22  //                                                                       //
  23  ///////////////////////////////////////////////////////////////////////////
  24  
  25  class data_field_url extends data_field_base {
  26      var $type = 'url';
  27  
  28      function display_add_field($recordid = 0, $formdata = null) {
  29          global $CFG, $DB, $OUTPUT, $PAGE;
  30  
  31          require_once($CFG->dirroot. '/repository/lib.php'); // necessary for the constants used in args
  32  
  33          $args = new stdClass();
  34          $args->accepted_types = '*';
  35          $args->return_types = FILE_EXTERNAL;
  36          $args->context = $this->context;
  37          $args->env = 'url';
  38          $fp = new file_picker($args);
  39          $options = $fp->options;
  40  
  41          $fieldid = 'field_url_'.$options->client_id;
  42  
  43          $straddlink = get_string('choosealink', 'repository');
  44          $url = '';
  45          $text = '';
  46          if ($formdata) {
  47              $fieldname = 'field_' . $this->field->id . '_0';
  48              $url = $formdata->$fieldname;
  49              $fieldname = 'field_' . $this->field->id . '_1';
  50              if (isset($formdata->$fieldname)) {
  51                  $text = $formdata->$fieldname;
  52              }
  53          } else if ($recordid) {
  54              if ($content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
  55                  $url  = $content->content;
  56                  $text = $content->content1;
  57              }
  58          }
  59  
  60          $autolinkable = !empty($this->field->param1) and empty($this->field->param2);
  61  
  62          $str = '<div title="' . s($this->field->description) . '">';
  63  
  64          $label = '<label for="' . $fieldid . '"><span class="accesshide">' . $this->field->name . '</span>';
  65          if ($this->field->required) {
  66              $image = html_writer::img($OUTPUT->pix_url('req'), get_string('requiredelement', 'form'),
  67                                        array('class' => 'req', 'title' => get_string('requiredelement', 'form')));
  68              if ($autolinkable) {
  69                  $label .= html_writer::div(get_string('requiredelement', 'form'), 'accesshide');
  70              } else {
  71                  $label .= html_writer::div($image, 'inline-req');
  72              }
  73          }
  74          $label .= '</label>';
  75  
  76          if ($autolinkable) {
  77              $str .= '<table><tr><td align="right">';
  78              $str .= '<span class="mod-data-input">' . get_string('url', 'data') . ':</span>';
  79              if (!empty($image)) {
  80                  $str .= $image;
  81              }
  82              $str .= '</td><td>';
  83              $str .= $label;
  84              $str .= '<input type="text" name="field_'.$this->field->id.'_0" id="'.$fieldid.'" value="'.s($url).'" size="60" />';
  85              $str .= '<button id="filepicker-button-'.$options->client_id.'" style="display:none">'.$straddlink.'</button></td></tr>';
  86              $str .= '<tr><td align="right"><span class="mod-data-input">'.get_string('text', 'data').':</span></td><td>';
  87              $str .= '<input type="text" name="field_'.$this->field->id.'_1" id="field_'.$this->field->id.'_1" value="'.s($text).'"';
  88              $str .= ' size="60" /></td></tr>';
  89              $str .= '</table>';
  90          } else {
  91              // Just the URL field
  92              $str .= $label;
  93              $str .= '<input type="text" name="field_'.$this->field->id.'_0" id="'.$fieldid.'" value="'.s($url).'"';
  94              $str .= ' size="60" class="mod-data-input" />';
  95              if (count($options->repositories) > 0) {
  96                  $str .= '<button id="filepicker-button-'.$options->client_id.'" class="visibleifjs">'.$straddlink.'</button>';
  97              }
  98          }
  99  
 100          // print out file picker
 101          //$str .= $OUTPUT->render($fp);
 102  
 103          $module = array('name'=>'data_urlpicker', 'fullpath'=>'/mod/data/data.js', 'requires'=>array('core_filepicker'));
 104          $PAGE->requires->js_init_call('M.data_urlpicker.init', array($options), true, $module);
 105          $str .= '</div>';
 106          return $str;
 107      }
 108  
 109      function display_search_field($value = '') {
 110          return '<label class="accesshide" for="f_'.$this->field->id.'">' . get_string('fieldname', 'data') . '</label>' .
 111                 '<input type="text" size="16" id="f_'.$this->field->id.'" name="f_'.$this->field->id.'" value="'.s($value).'" />';
 112      }
 113  
 114      function parse_search_field() {
 115          return optional_param('f_'.$this->field->id, '', PARAM_NOTAGS);
 116      }
 117  
 118      function generate_sql($tablealias, $value) {
 119          global $DB;
 120  
 121          static $i=0;
 122          $i++;
 123          $name = "df_url_$i";
 124          return array(" ({$tablealias}.fieldid = {$this->field->id} AND ".$DB->sql_like("{$tablealias}.content", ":$name", false).") ", array($name=>"%$value%"));
 125      }
 126  
 127      function display_browse_field($recordid, $template) {
 128          global $DB;
 129  
 130          if ($content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
 131              $url = empty($content->content)? '':$content->content;
 132              $text = empty($content->content1)? '':$content->content1;
 133              if (empty($url) or ($url == 'http://')) {
 134                  return '';
 135              }
 136              if (!empty($this->field->param2)) {
 137                  // param2 forces the text to something
 138                  $text = $this->field->param2;
 139              }
 140              if ($this->field->param1) {
 141                  // param1 defines whether we want to autolink the url.
 142                  $attributes = array();
 143                  if ($this->field->param3) {
 144                      // param3 defines whether this URL should open in a new window.
 145                      $attributes['target'] = '_blank';
 146                      $attributes['rel'] = 'noreferrer';
 147                  }
 148  
 149                  if (empty($text)) {
 150                      $text = $url;
 151                  }
 152  
 153                  $str = html_writer::link($url, $text, $attributes);
 154              } else {
 155                  $str = $url;
 156              }
 157              return $str;
 158          }
 159          return false;
 160      }
 161  
 162      function update_content($recordid, $value, $name='') {
 163          global $DB;
 164  
 165          $content = new stdClass();
 166          $content->fieldid = $this->field->id;
 167          $content->recordid = $recordid;
 168          $names = explode('_', $name);
 169  
 170          switch ($names[2]) {
 171              case 0:
 172                  // update link
 173                  $content->content = clean_param($value, PARAM_URL);
 174                  break;
 175              case 1:
 176                  // add text
 177                  $content->content1 = clean_param($value, PARAM_NOTAGS);
 178                  break;
 179              default:
 180                  break;
 181          }
 182  
 183          if (!empty($content->content) && (strpos($content->content, '://') === false)
 184                  && (strpos($content->content, '/') !== 0)) {
 185              $content->content = 'http://' . $content->content;
 186          }
 187  
 188          if ($oldcontent = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
 189              $content->id = $oldcontent->id;
 190              return $DB->update_record('data_content', $content);
 191          } else {
 192              return $DB->insert_record('data_content', $content);
 193          }
 194      }
 195  
 196      function notemptyfield($value, $name) {
 197          $names = explode('_',$name);
 198          $value = clean_param($value, PARAM_URL);
 199          //clean first
 200          if ($names[2] == '0') {
 201              return ($value!='http://' && !empty($value));
 202          }
 203          return false;
 204      }
 205  
 206      function export_text_value($record) {
 207          return $record->content . " " . $record->content1;
 208      }
 209  
 210  }