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Differences Between: [Versions 39 and 311] [Versions 39 and 400] [Versions 39 and 401] [Versions 39 and 402] [Versions 39 and 403]

   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * Profile field filter.
  19   *
  20   * @package   core_user
  21   * @category  user
  22   * @copyright 1999 Martin Dougiamas  http://dougiamas.com
  23   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  require_once($CFG->dirroot.'/user/filters/lib.php');
  27  
  28  /**
  29   * User filter based on values of custom profile fields.
  30   *
  31   * @copyright 1999 Martin Dougiamas  http://dougiamas.com
  32   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  33   */
  34  class user_filter_profilefield extends user_filter_type {
  35  
  36      /**
  37       * Constructor
  38       * @param string $name the name of the filter instance
  39       * @param string $label the label of the filter instance
  40       * @param boolean $advanced advanced form element flag
  41       */
  42      public function __construct($name, $label, $advanced) {
  43          parent::__construct($name, $label, $advanced);
  44      }
  45  
  46      /**
  47       * Old syntax of class constructor. Deprecated in PHP7.
  48       *
  49       * @deprecated since Moodle 3.1
  50       */
  51      public function user_filter_profilefield($name, $label, $advanced) {
  52          debugging('Use of class name as constructor is deprecated', DEBUG_DEVELOPER);
  53          self::__construct($name, $label, $advanced);
  54      }
  55  
  56      /**
  57       * Returns an array of comparison operators
  58       * @return array of comparison operators
  59       */
  60      public function get_operators() {
  61          return array(0 => get_string('contains', 'filters'),
  62                       1 => get_string('doesnotcontain', 'filters'),
  63                       2 => get_string('isequalto', 'filters'),
  64                       3 => get_string('startswith', 'filters'),
  65                       4 => get_string('endswith', 'filters'),
  66                       5 => get_string('isempty', 'filters'),
  67                       6 => get_string('isnotdefined', 'filters'),
  68                       7 => get_string('isdefined', 'filters'));
  69      }
  70  
  71      /**
  72       * Returns an array of custom profile fields
  73       * @return array of profile fields
  74       */
  75      public function get_profile_fields() {
  76          global $DB;
  77          $order = $DB->sql_order_by_text('name');
  78          if (!$fields = $DB->get_records_menu('user_info_field', null, $order, 'id, name')) {
  79              return null;
  80          }
  81          $res = array(0 => get_string('anyfield', 'filters'));
  82  
  83          return $res + $fields;
  84      }
  85  
  86      /**
  87       * Adds controls specific to this filter in the form.
  88       * @param object $mform a MoodleForm object to setup
  89       */
  90      public function setupForm(&$mform) {
  91          $profilefields = $this->get_profile_fields();
  92          if (empty($profilefields)) {
  93              return;
  94          }
  95          $objs = array();
  96          $objs['field'] = $mform->createElement('select', $this->_name.'_fld', null, $profilefields);
  97          $objs['op'] = $mform->createElement('select', $this->_name.'_op', null, $this->get_operators());
  98          $objs['value'] = $mform->createElement('text', $this->_name, null);
  99          $objs['field']->setLabel(get_string('profilefilterfield', 'filters'));
 100          $objs['op']->setLabel(get_string('profilefilterlimiter', 'filters'));
 101          $objs['value']->setLabel(get_string('valuefor', 'filters', $this->_label));
 102          $grp =& $mform->addElement('group', $this->_name.'_grp', $this->_label, $objs, '', false);
 103          $mform->setType($this->_name, PARAM_RAW);
 104          if ($this->_advanced) {
 105              $mform->setAdvanced($this->_name.'_grp');
 106          }
 107      }
 108  
 109      /**
 110       * Retrieves data from the form data
 111       * @param object $formdata data submited with the form
 112       * @return mixed array filter data or false when filter not set
 113       */
 114      public function check_data($formdata) {
 115          $profilefields = $this->get_profile_fields();
 116  
 117          if (empty($profilefields)) {
 118              return false;
 119          }
 120  
 121          $field    = $this->_name;
 122          $operator = $field.'_op';
 123          $profile  = $field.'_fld';
 124  
 125          if (property_exists($formdata, $profile)) {
 126              if ($formdata->$operator < 5 and $formdata->$field === '') {
 127                  return false;
 128              }
 129  
 130              return array('value'    => (string)$formdata->$field,
 131                           'operator' => (int)$formdata->$operator,
 132                           'profile'  => (int)$formdata->$profile);
 133          }
 134      }
 135  
 136      /**
 137       * Returns the condition to be used with SQL where
 138       * @param array $data filter settings
 139       * @return array sql string and $params
 140       */
 141      public function get_sql_filter($data) {
 142          global $CFG, $DB;
 143          static $counter = 0;
 144          $name = 'ex_profilefield'.$counter++;
 145  
 146          $profilefields = $this->get_profile_fields();
 147          if (empty($profilefields)) {
 148              return '';
 149          }
 150  
 151          $profile  = $data['profile'];
 152          $operator = $data['operator'];
 153          $value    = $data['value'];
 154  
 155          $params = array();
 156          if (!array_key_exists($profile, $profilefields)) {
 157              return array('', array());
 158          }
 159  
 160          $where = "";
 161          $op = " IN ";
 162  
 163          if ($operator < 5 and $value === '') {
 164              return '';
 165          }
 166  
 167          switch($operator) {
 168              case 0: // Contains.
 169                  $where = $DB->sql_like('data', ":$name", false, false);
 170                  $params[$name] = "%$value%";
 171                  break;
 172              case 1: // Does not contain.
 173                  $where = $DB->sql_like('data', ":$name", false, false, true);
 174                  $params[$name] = "%$value%";
 175                  break;
 176              case 2: // Equal to.
 177                  $where = $DB->sql_like('data', ":$name", false, false);
 178                  $params[$name] = "$value";
 179                  break;
 180              case 3: // Starts with.
 181                  $where = $DB->sql_like('data', ":$name", false, false);
 182                  $params[$name] = "$value%";
 183                  break;
 184              case 4: // Ends with.
 185                  $where = $DB->sql_like('data', ":$name", false, false);
 186                  $params[$name] = "%$value";
 187                  break;
 188              case 5: // Empty.
 189                  $where = "data = :$name";
 190                  $params[$name] = "";
 191                  break;
 192              case 6: // Is not defined.
 193                  $op = " NOT IN ";
 194                  break;
 195              case 7: // Is defined.
 196                  break;
 197          }
 198          if ($profile) {
 199              if ($where !== '') {
 200                  $where = " AND $where";
 201              }
 202              $where = "fieldid=$profile $where";
 203          }
 204          if ($where !== '') {
 205              $where = "WHERE $where";
 206          }
 207          return array("id $op (SELECT userid FROM {user_info_data} $where)", $params);
 208      }
 209  
 210      /**
 211       * Returns a human friendly description of the filter used as label.
 212       * @param array $data filter settings
 213       * @return string active filter label
 214       */
 215      public function get_label($data) {
 216          $operators      = $this->get_operators();
 217          $profilefields = $this->get_profile_fields();
 218  
 219          if (empty($profilefields)) {
 220              return '';
 221          }
 222  
 223          $profile  = $data['profile'];
 224          $operator = $data['operator'];
 225          $value    = $data['value'];
 226  
 227          if (!array_key_exists($profile, $profilefields)) {
 228              return '';
 229          }
 230  
 231          $a = new stdClass();
 232          $a->label    = $this->_label;
 233          $a->value    = $value;
 234          $a->profile  = $profilefields[$profile];
 235          $a->operator = $operators[$operator];
 236  
 237          switch($operator) {
 238              case 0: // Contains.
 239              case 1: // Doesn't contain.
 240              case 2: // Equal to.
 241              case 3: // Starts with.
 242              case 4: // Ends with.
 243                  return get_string('profilelabel', 'filters', $a);
 244              case 5: // Empty.
 245              case 6: // Is not defined.
 246              case 7: // Is defined.
 247                  return get_string('profilelabelnovalue', 'filters', $a);
 248          }
 249          return '';
 250      }
 251  }