exercise_import.inc.php

完美的在线教育系统

    }
    else
    {
        array_push ($backlog_message, get_lang('ERROR in:<b>'.$questionFile.'</b> Question format unknown') );
    }
}


/**
 * Function used by the SAX xml parser when the parser meets a opening tag
 *
 * @param unknown_type $parser xml parser created with "xml_parser_create()"
 * @param unknown_type $name name of the element
 * @param unknown_type $attributes
 */

function startElement($parser, $name, $attributes)
{
    global $element_pile;
    global $exercise_info;
    global $current_question_ident;
    global $current_answer_id;
    global $current_match_set;
    global $currentAssociableChoice;
    global $current_question_item_body;
    global $record_item_body;
    global $non_HTML_tag_to_avoid;
    global $current_inlinechoice_id;
    global $cardinality;
    global $questionTempDir;

    array_push($element_pile,$name);
    $current_element = end($element_pile);
    if (sizeof($element_pile)>=2) $parent_element        = $element_pile[sizeof($element_pile)-2]; else $parent_element = "";
    if (sizeof($element_pile)>=3) $grant_parent_element  = $element_pile[sizeof($element_pile)-3]; else $grant_parent_element ="";

    if ($record_item_body)
    {

        if ((!in_array($current_element,$non_HTML_tag_to_avoid)))
        {
            $current_question_item_body .= "<".$name;

            foreach ($attributes as $attribute_name => $attribute_value)
            {
                $current_question_item_body .= " ".$attribute_name."=\"".$attribute_value."\"";
            }
            $current_question_item_body .= ">";
        }
        else
        {
            //in case of FIB question, we replace the IMS-QTI tag b y the correct answer between "[" "]",
            //we first save with claroline tags ,then when the answer will be parsed, the claroline tags will be replaced
    
            if ($current_element=='INLINECHOICEINTERACTION')
            {
           
                  $current_question_item_body .="**claroline_start**".$attributes['RESPONSEIDENTIFIER']."**claroline_end**";
            }
            if ($current_element=='TEXTENTRYINTERACTION')
            {
                $correct_answer_value = $exercise_info['question'][$current_question_ident]['correct_answers'][$current_answer_id];
                $current_question_item_body .= "[".$correct_answer_value."]";

            }
            if ($current_element=='BR')
            {
                $current_question_item_body .= "<BR/>";
            }
        }
        
    }

    switch ($current_element)
    {
        case 'ASSESSMENTITEM' :
        {
            //retrieve current question

			$current_question_ident = $attributes['IDENTIFIER'];
            $exercise_info['question'][$current_question_ident] = array();
            $exercise_info['question'][$current_question_ident]['answer'] = array();
            $exercise_info['question'][$current_question_ident]['correct_answers'] = array();
            $exercise_info['question'][$current_question_ident]['title'] = $attributes['TITLE'];
            $exercise_info['question'][$current_question_ident]['tempdir'] = $questionTempDir;
        }
        break;
		
        case 'SECTION' :
        {
         	//retrieve exercise name
			
			$exercise_info['name'] = $attributes['TITLE'];
               
        }
		break;
		
		case 'RESPONSEDECLARATION' :
        {
         	//retrieve question type
			
			if ( "multiple" == $attributes['CARDINALITY'])
			{
				$exercise_info['question'][$current_question_ident]['type'] = 'MCMA';
                $cardinality = 'multiple';
			}
			if ( "single" == $attributes['CARDINALITY'])
			{
				$exercise_info['question'][$current_question_ident]['type'] = 'MCUA';
                $cardinality = 'single';
			}

            //needed for FIB

            $current_answer_id = $attributes['IDENTIFIER'];

        }
		break;

        case 'INLINECHOICEINTERACTION' :
        {
            $exercise_info['question'][$current_question_ident]['type'] = 'FIB';
            $exercise_info['question'][$current_question_ident]['subtype'] = 'LISTBOX_FILL';
            $current_answer_id = $attributes['RESPONSEIDENTIFIER'];

        }
        break;

        case 'INLINECHOICE' :
        {
            $current_inlinechoice_id = $attributes['IDENTIFIER'];
        }
        break;

        case 'TEXTENTRYINTERACTION' :
        {
            $exercise_info['question'][$current_question_ident]['type'] = 'FIB';
            $exercise_info['question'][$current_question_ident]['subtype'] = 'TEXTFIELD_FILL';
            $exercise_info['question'][$current_question_ident]['response_text'] = $current_question_item_body;

            //replace claroline tags
            
        }
        break;

        case 'MATCHINTERACTION' :
        {
            $exercise_info['question'][$current_question_ident]['type'] = 'MATCHING';
        }
        break;

        case 'SIMPLEMATCHSET' :
        {
            if (!isset($current_match_set))
            {
                $current_match_set = 1;
            }
            else
            {
                $current_match_set++;
            }
            $exercise_info['question'][$current_question_ident]['answer'][$current_match_set] = array();
        }
        break;

        case 'SIMPLEASSOCIABLECHOICE' :
        {
            $currentAssociableChoice = $attributes['IDENTIFIER'];
        }
        break;

        //retrieve answers id for MCUA and MCMA questions

        case 'SIMPLECHOICE':
        {
            $current_answer_id = $attributes['IDENTIFIER'];
            if (!isset($exercise_info['question'][$current_question_ident]['answer'][$current_answer_id]))
            {
                $exercise_info['question'][$current_question_ident]['answer'][$current_answer_id] = array();
            }
        }
        break;

        case 'MAPENTRY':
        {
            if ($parent_element == "MAPPING")
            {
                $answer_id = $attributes['MAPKEY'];

                if (!isset($exercise_info['question'][$current_question_ident]['weighting']))
                {
                    $exercise_info['question'][$current_question_ident]['weighting'] = array();
                }
                $exercise_info['question'][$current_question_ident]['weighting'][$answer_id] = $attributes['MAPPEDVALUE'];
            }
        }
        break;

        case 'MAPPING':
        {
            if (isset($attributes['DEFAULTVALUE']))
            {
                $exercise_info['question'][$current_question_ident]['default_weighting'] = $attributes['DEFAULTVALUE'];
            }
        }

        case 'ITEMBODY':
        {
            $record_item_body = true;
            $current_question_item_body = '';
        }
        break;

        case 'IMG' :
        {
            $exercise_info['question'][$current_question_ident]['attached_file_url'] =  $attributes['SRC'];
        }
        break;
    }
}

/**
 * Function used by the SAX xml parser when the parser meets a closing tag
 *
 * @param $parser xml parser created with "xml_parser_create()"
 * @param $name name of the element
 */

function endElement($parser,$name)
{
    global $element_pile;
    global $exercise_info;
	global $current_question_ident;
    global $record_item_body;
    global $current_question_item_body;
    global $non_HTML_tag_to_avoid;
    global $cardinality;

	$current_element = end($element_pile);

    //treat the record of the full content of itembody tag :

    if ($record_item_body && (!in_array($current_element,$non_HTML_tag_to_avoid)))
    {
        $current_question_item_body .= "</".$name.">";
    }

    switch ($name)
    {
        case 'ITEMBODY':
            {
                $record_item_body = false;
                if ($exercise_info['question'][$current_question_ident]['type']=='FIB')
                {
                    $exercise_info['question'][$current_question_ident]['response_text'] = $current_question_item_body;
                }
                else
                {
                    $exercise_info['question'][$current_question_ident]['statement'] = $current_question_item_body;
                }
            }
        break;
    }
    array_pop($element_pile);

}

function elementData($parser,$data)
{

    global $element_pile;
    global $exercise_info;
	global $current_question_ident;
    global $current_answer_id;
    global $current_match_set;
    global $currentAssociableChoice;
    global $current_question_item_body;
    global $record_item_body;
    global $non_HTML_tag_to_avoid;
    global $current_inlinechoice_id;
    global $cardinality;
	
    $current_element       = end($element_pile);
	if (sizeof($element_pile)>=2) $parent_element        = $element_pile[sizeof($element_pile)-2]; else $parent_element = "";
	if (sizeof($element_pile)>=3) $grant_parent_element  = $element_pile[sizeof($element_pile)-3]; else $grant_parent_element = "";
	
	//treat the record of the full content of itembody tag (needed for question statment and/or FIB text:

    if ($record_item_body && (!in_array($current_element,$non_HTML_tag_to_avoid)))
    {
        $current_question_item_body .= $data;
    }
	
    switch ($current_element)
    {
        case 'SIMPLECHOICE':
        {
            if (!isset($exercise_info['question'][$current_question_ident]['answer'][$current_answer_id]['value']))
            {
                $exercise_info['question'][$current_question_ident]['answer'][$current_answer_id]['value'] = trim($data);
            }
            else
            {
                $exercise_info['question'][$current_question_ident]['answer'][$current_answer_id]['value'] .= ' '.trim($data);
            }
        }
        break;

        case 'FEEDBACKINLINE' :
        {
            if (!isset($exercise_info['question'][$current_question_ident]['answer'][$current_answer_id]['feedback']))
            {
                $exercise_info['question'][$current_question_ident]['answer'][$current_answer_id]['feedback'] = trim($data);
            }
            else
            {
                $exercise_info['question'][$current_question_ident]['answer'][$current_answer_id]['feedback'] .= ' '.trim($data);
            }
        }
        break;

        case 'SIMPLEASSOCIABLECHOICE' :
        {
            $exercise_info['question'][$current_question_ident]['answer'][$current_match_set][$currentAssociableChoice] = trim($data);
        }
        break;

        case 'VALUE':
        {
            if ($parent_element=="CORRECTRESPONSE")
            {
                if ($cardinality=="single")
                {
                    $exercise_info['question'][$current_question_ident]['correct_answers'][$current_answer_id] = $data;
                }
                else
                {
                    $exercise_info['question'][$current_question_ident]['correct_answers'][] = $data;
                }
            }
        }
        break;

        case 'ITEMBODY' :
        {
            $current_question_item_body .= $data;

        }
        break;

        case 'INLINECHOICE' :
        {

            // if this is the right answer, then we must replace the claroline tags in the FIB text bye the answer between "[" and "]" :

            $answer_identifier = $exercise_info['question'][$current_question_ident]['correct_answers'][$current_answer_id];

            if ($current_inlinechoice_id == $answer_identifier)
            {

                $current_question_item_body = str_replace("**claroline_start**".$current_answer_id."**claroline_end**", "[".$data."]", $current_question_item_body);
            }
            else // save wrong answers in an array
            {
                if(!isset($exercise_info['question'][$current_question_ident]['wrong_answers']))
                {
                    $exercise_info['question'][$current_question_ident]['wrong_answers'] = array();
                }
                $exercise_info['question'][$current_question_ident]['wrong_answers'][] = $data;
            }
        }
        break;
    }
}
?>