mod/data/field/url/field.class.php

   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) {
  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         $text = '';
  46         if ($recordid) {
  47             if ($content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
  48                 $url  = $content->content;
  49                 $text = $content->content1;
  50             }
  51         }
  52         $str = '<div title="'.s($this->field->description).'">';
  53         if (!empty($this->field->param1) and empty($this->field->param2)) {
  54             $str .= '<table><tr><td align="right">';
  55             $str .= get_string('url','data').':</td><td><input type="text" name="field_'.$this->field->id.'_0" id="'.$fieldid.'" value="'.$url.'" size="60" /></td></tr>';
  56             $str .= '<tr><td align="right">'.get_string('text','data').':</td><td><input type="text" name="field_'.$this->field->id.'_1" id="field_'.$this->field->id.'_1" value="'.s($text).'" size="60" /></td></tr>';
  57             $str .= '</table>';
  58         } else {
  59             // Just the URL field
  60             $str .= '<input type="text" name="field_'.$this->field->id.'_0" id="'.$fieldid.'" value="'.s($url).'" size="60" />';
  61         }
  62
  63         $str .= '<button id="filepicker-button-'.$options->client_id.'" style="display:none">'.$straddlink.'</button>';
  64
  65         // print out file picker
  66         //$str .= $OUTPUT->render($fp);
  67
  68         $module = array('name'=>'data_urlpicker', 'fullpath'=>'/mod/data/data.js', 'requires'=>array('core_filepicker'));
  69         $PAGE->requires->js_init_call('M.data_urlpicker.init', array($options), true, $module);
  70         $PAGE->requires->js_function_call('show_item', array('filepicker-button-'.$options->client_id));
  71
  72         $str .= '</div>';
  73         return $str;
  74     }
  75
  76     function display_search_field($value = '') {
  77         return '<input type="text" size="16" name="f_'.$this->field->id.'" value="'.$value.'" />';
  78     }
  79
  80     function parse_search_field() {
  81         return optional_param('f_'.$this->field->id, '', PARAM_NOTAGS);
  82     }
  83
  84     function generate_sql($tablealias, $value) {
  85         global $DB;
  86
  87         static $i=0;
  88         $i++;
  89         $name = "df_url_$i";
  90         return array(" ({$tablealias}.fieldid = {$this->field->id} AND ".$DB->sql_like("{$tablealias}.content", ":$name", false).") ", array($name=>"%$value%"));
  91     }
  92
  93     function display_browse_field($recordid, $template) {
  94         global $DB;
  95
  96         if ($content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
  97             $url = empty($content->content)? '':$content->content;
  98             $text = empty($content->content1)? '':$content->content1;
  99             if (empty($url) or ($url == 'http://')) {
 100                 return '';
 101             }
 102             if (!empty($this->field->param2)) {
 103                 // param2 forces the text to something
 104                 $text = $this->field->param2;
 105             }
 106             if ($this->field->param1) {
 107                 // param1 defines whether we want to autolink the url.
 108                 if (!empty($text)) {
 109                     $str = '<a href="'.$url.'">'.$text.'</a>';
 110                 } else {
 111                     $str = '<a href="'.$url.'">'.$url.'</a>';
 112                 }
 113             } else {
 114                 $str = $url;
 115             }
 116             return $str;
 117         }
 118         return false;
 119     }
 120
 121     function update_content($recordid, $value, $name='') {
 122         global $DB;
 123
 124         $content = new stdClass();
 125         $content->fieldid = $this->field->id;
 126         $content->recordid = $recordid;
 127         $names = explode('_', $name);
 128
 129         switch ($names[2]) {
 130             case 0:
 131                 // update link
 132                 $content->content = clean_param($value, PARAM_URL);
 133                 break;
 134             case 1:
 135                 // add text
 136                 $content->content1 = clean_param($value, PARAM_NOTAGS);
 137                 break;
 138             default:
 139                 break;
 140         }
 141
 142         if (!empty($content->content) && (strpos($content->content, '://') === false) && (strpos($content->content, '/', 0) === false)) {
 143             $content->content = 'http://' . $content->content;
 144         }
 145
 146         if ($oldcontent = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
 147             $content->id = $oldcontent->id;
 148             return $DB->update_record('data_content', $content);
 149         } else {
 150             return $DB->insert_record('data_content', $content);
 151         }
 152     }
 153
 154     function notemptyfield($value, $name) {
 155         $names = explode('_',$name);
 156         $value = clean_param($value, PARAM_URL);
 157         //clean first
 158         if ($names[2] == '0') {
 159             return ($value!='http://' && !empty($value));
 160         }
 161         return false;
 162     }
 163
 164     function export_text_value($record) {
 165         return $record->content . " " . $record->content1;
 166     }
 167
 168 }
 169
 170