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MDL-21851 adding idalias to user_picture::fields()

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This commit is contained in:
Petr Skoda 2010-03-18 07:41:57 +00:00
parent e116a81833
commit f3afba4e19
1 changed files with 16 additions and 4 deletions
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20
lib/outputcomponents.php
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@ -119,15 +119,27 @@ class user_picture implements renderable {
/** /**
* Returns a list of required user fields, usefull when fetching required user info from db. * Returns a list of required user fields, usefull when fetching required user info from db.
*
* In some cases we have to fetch the user data together with some other information,
* the idalias is useful there because the id would otherwise override the main
* id of the result record. Please note it has to be converted back to id before rendering.
*
* @param string $tableprefix name of database table prefix in query * @param string $tableprefix name of database table prefix in query
* @param string $idalias alias of id field
* @return string * @return string
*/ */
public static function fields($tableprefix = '') { public static function fields($tableprefix = '', $idalias = '') {
if ($tableprefix === '') { if ($tableprefix === '' and $idalias === '') {
return self::FIELDS; return self::FIELDS;
} else {
return "$tableprefix." . str_replace(',', ",$tableprefix.", self::FIELDS);
} }
$fields = explode(',', self::FIELDS);
foreach ($fields as $key=>$field) {
if ($field === 'id' and $idalias !== '') {
$field = "$field AS $idalias";
}
$fields[$key] = "$tableprefix.$field";
}
return implode(',', $fields);
} }
} }