/**
* @desc Gets derived questions from a webworkquestion record object by calling the SOAP server.
* @param $webworkquestion The record to create from
* @return $response The recordset from the WeBWorK Question Server.
*/
function webwork_get_derivations($wwquestion)
{
//parameters needed from the webworkquestion object
$code = $wwquestion->code;
$seed = $wwquestion->seed;
$trials = $wwquestion->trials;
$files = $wwquestion->files;
//problem to be generated
$problem = array();
$problem['code'] = $code;
$problem['seed'] = $seed;
$problem['files'] = $files;
//requested # times for generation
$request = array();
$request['trials'] = $trials;
$request['problem'] = $problem;
//SOAP CALL
$params = array($request);
$client = new webwork_client();
$response = $client->handler('generateProblem', $params);
return $response;
}
/**
* @desc Test Basic Communication
*/
function test_basic_communication()
{
$client = new webwork_client();
$response = $client->handler('hello');
$this->assertEqual('hello world!', $response, 'Webwork Server Communication Test.');
}
/**
* @desc Gets the correct answers from the SOAP server for the seed in state. Places them into the state->responses array.
* @param $question object The question object.
* @param $state object The state object.
* @return object Object containing the seed,derivedid, and answers.
*/
function get_correct_responses(&$question, &$state)
{
//get code and seed of response
$code = base64_encode($question->code);
$seed = $state->responses['seed'];
$derivationid = $state->responses['derivationid'];
//get empty answers & build answer request
$answerarray = array();
foreach ($state->responses as $key => $value) {
array_push($answerarray, array('field' => $key, 'answer' => $value));
}
//build problem request
$problem = array();
$problem['code'] = $code;
$problem['seed'] = $seed;
//SOAP request
$params = array();
$params['request'] = $problem;
$params['answers'] = $answerarray;
//SOAP Call
$client = new webwork_client();
$response = $client->handler('checkAnswers', $params);
//make the state perfect graded
$state->raw_grade = 1;
$state->event = $state->event == QUESTION_EVENTCLOSE ? QUESTION_EVENTCLOSEANDGRADE : QUESTION_EVENTGRADE;
$state->penalty = 0;
//process correct answers into fields
$answers = $response;
$ret = array();
$ret['answers'] = array();
foreach ($answers as $answer) {
$ret['answers'][$answer['field']] = $answer;
$ret['answers'][$answer['field']]['answer'] = $answer['correct'];
$ret['answers'][$answer['field']]['score'] = 1;
$ret['answers'][$answer['field']]['evaluated'] = "";
$ret['answers'][$answer['field']]['preview'] = "";
}
//push the seed onto the answer array, keep track of what seed these are for.
$ret['seed'] = $seed;
$ret['derivationid'] = $derivationid;
return $ret;
}
