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<?php
/**
* DatafieldCondition.php
*
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* @author André Noack <noack@data-quest.de>
* @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
* @category Stud.IP
*/
namespace UserFilterFields;
class DatafieldCondition extends \UserFilterField
{
public static $isParameterized = true;
public $datafield_id, $null_yields, $datafield_name;
public static $sortOrder = 6;
public static function getParameterizedTypes()
{
$ret = [];
try {
foreach (\DataField::findBySQL("object_type='user' AND (object_class & (1|2|4|8) OR object_class IS NULL) AND is_userfilter = 1 ORDER BY priority") as $df) {
$ret[__CLASS__ . '_' . $df->id] = utf8_encode(chr(160)) . _("Datenfeld") . ': ' . $df->name;
}
} catch (\PDOException $e) {} //migration 128 chokes on this...
return $ret;
}
/**
* @see UserFilterField::__construct
*/
public function __construct($typeparam, $fieldId = '')
{
$this->validCompareOperators = [
'>=' => _('mindestens'),
'<=' => _('höchstens'),
'=' => _('ist'),
'!=' => _('ist nicht')
];
if ($fieldId) {
$this->id = $fieldId;
$this->load();
} else {
$this->id = $this->generateId();
$this->datafield_id = $typeparam;
}
$df = \DataField::find($this->datafield_id);
if ($df) {
$this->datafield_name = $df->name;
} else {
throw new \UnexpectedValueException('datafield not found, id: ' . $typeparam);
}
$typed_df = \DataFieldEntry::createDataFieldEntry($df);
if ($typed_df instanceof \DataFieldBoolEntry) {
$this->validValues = [1 => _('Ja'), 0 => _('Nein')];
unset($this->validCompareOperators['>=']);
unset($this->validCompareOperators['<=']);
unset($this->validCompareOperators['!=']);
$this->null_yields = 0;
} else if ($typed_df instanceof \DataFieldSelectboxEntry) {
list($valid_values, $is_assoc) = $typed_df->getParameters();
if (!$is_assoc) {
$valid_values = array_combine($valid_values, $valid_values);
}
$this->validValues = $valid_values;
$this->null_yields = $typed_df instanceof \DataFieldSelectboxMultipleEntry ? '' : key($valid_values);
} else {
$this->null_yields = '';
}
}
/**
* Get this field's display name.
*
* @return String
*/
public function getName()
{
return $this->datafield_name;
}
public function getUsers($restrictions = [])
{
$db = \DBManager::get();
// Standard query getting the values without respecting other values.
$select = "SELECT user_id FROM
auth_user_md5 LEFT JOIN
datafields_entries ON range_id = user_id AND datafield_id = ?
WHERE perms IN ('user','autor','tutor','dozent') AND IFNULL(content, ?)
" . $this->compareOperator . " ?";
$users = $db->fetchFirst($select, [$this->datafield_id, $this->null_yields,$this->value]);
return $users;
}
/**
* Gets the value for the given user that is relevant for this
*
* @param String $userId User to check.
* @param Array $additional additional conditions that are required for check.
* @return array The value(s) for this user.
*/
public function getUserValues($userId, $additional = null)
{
$result = \DBManager::get()->fetchColumn(
"SELECT content FROM datafields_entries
WHERE datafield_id = ? AND range_id = ?", [$this->datafield_id, $userId]);
return [$result === null || $result === false ? $this->null_yields : $result];
}
/**
* Helper function for loading data from DB.
*/
public function load()
{
$stmt = \DBManager::get()->prepare(
"SELECT * FROM `userfilter_fields` WHERE `field_id`=? LIMIT 1");
$stmt->execute([$this->id]);
if ($data = $stmt->fetch(\PDO::FETCH_ASSOC)) {
$this->conditionId = $data['filter_id'];
$this->value = $data['value'];
$this->compareOperator = $data['compare_op'];
list(,$this->datafield_id) = explode('_', $data['type']);
}
}
/**
* Sets a new selected value.
*
* @param String newValue
* @return UserFilterField
*/
public function setValue($newValue)
{
$this->value = $newValue;
return $this;
}
/**
* Stores data to DB.
*
*/
public function store()
{
// Generate new ID if field entry doesn't exist in DB yet.
if (!$this->id) {
$this->id = $this->generateId();
}
// Store field data.
$stmt = \DBManager::get()->prepare("INSERT INTO `userfilter_fields`
(`field_id`, `filter_id`, `type`, `value`, `compare_op`,
`mkdate`, `chdate`) VALUES (?, ?, ?, ?, ?, ?, ?)
ON DUPLICATE KEY UPDATE `filter_id`=VALUES(`filter_id`),
`type`=VALUES(`type`),`value`=VALUES(`value`),
`compare_op`=VALUES(`compare_op`), `chdate`=VALUES(`chdate`)");
$stmt->execute([$this->id, $this->conditionId, get_class($this).'_'.$this->datafield_id,
$this->value, $this->compareOperator, time(), time()]);
}
}
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