/**
* Load the list of occurrence attributes into a static variable.
*
* By maintaining a single list of attributes we can track which have already been output.
* @param array $readAuth Read authorisation tokens.
* @param integer $surveyId ID of the survey to load occurrence attributes for.
*/
protected static function load_custom_occattrs($readAuth, $surveyId)
{
if (!isset(self::$occAttrs)) {
// Add any dynamically generated controls
$attrArgs = array('valuetable' => 'occurrence_attribute_value', 'attrtable' => 'occurrence_attribute', 'key' => 'occurrence_id', 'fieldprefix' => 'occAttr', 'extraParams' => $readAuth, 'survey_id' => $surveyId);
if (count(self::$occurrenceIds) == 1) {
// if we have a single occurrence Id to load, use it to get attribute values
$attrArgs['id'] = self::$occurrenceIds[0];
}
self::$occAttrs = data_entry_helper::getAttributes($attrArgs, false);
}
}
