Yii::app()->lang doesn't work sometimes with LimeSurvey - php

Question

I am working on a custom script to automatically send out invites and reminders. I have everything working fine up until a point. My function to send invites looks like this:
function sendInvites($iSurveyID) {
$oSurvey = Survey::model()->findByPk($iSurveyID);
if (!isset($oSurvey)) {
die("could not load survey");
}
if(!tableExists("{{tokens_$iSurveyID}}")) {
die("survey has no tokens or something");
}
$SQLemailstatuscondition = "emailstatus = 'OK'";
$SQLremindercountcondition = '';
$SQLreminderdelaycondition = '';
$iMaxEmails = (int)Yii::app()->getConfig("maxemails");
$iMaxReminders = 1;
if(!is_null($iMaxReminders)) {
$SQLremindercountcondition = "remindercount < " . $iMaxReminders;
}
$oTokens = Tokens_dynamic::model($iSurveyID);
$aResultTokens = $oTokens->findUninvited(false, $iMaxEmails, true, $SQLemailstatuscondition, $SQLremindercountcondition, $SQLreminderdelaycondition);
if (empty($aResultTokens)) {
die("No tokens to send invites to");
}
$aResult = emailTokens($iSurveyID, $aResultTokens, 'invite');
}
I also have a simple little file that starts up Yii:
Yii::createApplication('LSYii_Application', APPPATH . 'config/config' . EXT);
Yii::app()->loadHelper('admin/token');
Yii::app()->loadHelper('common');
Everything works as expected up until I actually try to send emails to the tokens. I've tracked the problem down to the following, on of the functions called by emailTokens has this in it:
$clang = Yii::app()->lang;
$aBasicTokenFields=array('firstname'=>array(
'description'=>$clang->gT('First name'),
'mandatory'=>'N',
'showregister'=>'Y'
),
The Yii::app()->lang part seems to be causing issues because then php is unable to call the gT method. However, when LimeSurvey is running "properly" this never happens. I can't even seem to find where "lang" is in the LimeSurvey source.
What can I do to make it work?

Answer 1

Why do you make it so hard on yourself and not use the RemoteControl2 API ?
See http://manual.limesurvey.org/wiki/RemoteControl_2_API#invite_participants
On that page you will also find a PHP example script.

Answer 2

maybe
Yii::import('application.libraries.Limesurvey_lang');
$clang = new Limesurvey_lang($oTokens->language);