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<?php
/**
* I18NStringDatafield.php
* Class to handle i18n content of datafields.
*
* 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 Peter Thienel <thienel@data-quest.de>
* @copyright 2017 Stud.IP Core-Group
* @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
* @category Stud.IP
* @since 4.1
*
*/
class I18NStringDatafield extends I18NString
{
/**
* Sets the metadata (database info object_id) of this i18n datafield.
*
* @param array $metadata Database info for object_id.
*/
public function setMetadata($metadata)
{
if (is_null($metadata['table'])) {
$this->metadata = $metadata;
}
}
/**
* Return an array containg the text in all additional languages.
*
* @return array
*/
public function toArray()
{
if (is_null($this->lang)) {
$object_id = $this->metadata['object_id'];
$this->lang = self::fetchDataForField($object_id, null, null);
}
return $this->lang;
}
/**
* Stores the i18n String manually in the database
*
*/
public function storeTranslations()
{
if (is_array($this->lang)) {
$object_id = $this->metadata['object_id'];
/* Replace translations */
DatafieldEntryModel::deleteBySQL(
"`datafield_id` = ? AND `range_id` = ? AND `sec_range_id` = ? AND `lang` <> ''",
[$object_id[0], $object_id[1], $object_id[2]]
);
foreach ($this->lang as $lang => $value) {
if (strlen($value)) {
DatafieldEntryModel::create(
[
'datafield_id' => $object_id[0],
'range_id' => $object_id[1],
'sec_range_id' => $object_id[2],
'content' => (string) $value,
'lang' => (string) $lang,
]
);
}
}
}
}
/**
* Returns an I18NString object by given object_id, table and field.
*
* @param string $object_id The id of the object with i18n fields.
* @param string $table The name of the table with the original values.
* @param string $field The name of the i18n field.
* @param string $base Sets the original value or retrieve it from database
* if null.
* @return I18NString The I18NString object.
*/
public static function load($object_id, $table = '', $field = '', $base = null)
{
if ($base === null) {
$df = DatafieldEntryModel::findOneBySQL(
"`datafield_id` = ? AND `range_id` = ? AND `sec_range_id` = ? AND `lang` = ''",
[$object_id[0], $object_id[1], $object_id[2]]
);
$base = $df ? $df->content : '';
}
$table = null;
$field = null;
return new self(
$base,
self::fetchDataForField($object_id, $table, $field),
compact('object_id', 'table', 'field')
);
}
/**
* Retrieves all translations for one field.
*
* @param string $object_id The id of the object with i18n fields.
* @param string $table The name of the table with the original values.
* @param string $field The name oof the i18n field.
* @return array An array with language as key and translation as value.
*/
public static function fetchDataForField($object_id, $table, $field)
{
$result = [];
DatafieldEntryModel::findEachBySQL(
function (DatafieldEntryModel $model) use (&$result) {
$result[$model->lang] = $model->content;
},
"`datafield_id` = ? AND `range_id` = ? AND `sec_range_id` = ? AND `lang` <> ''",
[$object_id[0], $object_id[1], $object_id[2]]
);
return $result;
}
/**
* This function is not used in the context of datafields, so it always
* returns an empty array.
*
* @param string $object_id The id of the object with i18n fields.
* @param string $table The name of the table with the original values.
* @return array An empty array.
*/
public static function fetchDataForRow($object_id, $table)
{
return [];
}
/**
* Removes all translations by given object id and table name. Accepts the
* language as third parameter to remove only translations to this language.
*
* @param string $object_id The id of the sorm object.
* @param string $table The table name.
* @param string $lang Optional name of language.
* @return int The number of deleted translations.
*/
public static function removeAllTranslations($object_id, $table, $lang = null)
{
$db = DBManager::get();
if ($lang) {
return $db->execute('DELETE FROM `datafield_entries` '
. 'WHERE `datafield_id` = ? '
. 'AND `range_id` = ? '
. 'AND `sec_range_id` = ? '
. 'AND `lang` = ?',
[$object_id[0], $object_id[1], $object_id[2], $lang]);
}
return $db->execute('DELETE FROM `datafield_entries` '
. 'WHERE `datafield_id` = ? '
. 'AND `range_id` = ? '
. 'AND `sec_range_id` = ? '
. 'AND `table` = ?',
$object_id);
}
}
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