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adding import and export datasets functions

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This commit is contained in:
pichetp 2007-03-28 04:03:07 +00:00
parent 7df05299b6
commit 3f76dd525f
1 changed files with 112 additions and 6 deletions
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118
question/type/calculated/questiontype.php
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@ -1,8 +1,5 @@
<?php // $Id$
/**
* @package questionbank
* @subpackage questiontypes
*/
/////////////////
// CALCULATED ///
/////////////////
@ -53,7 +50,55 @@ class question_calculated_qtype extends question_dataset_dependent_questiontype
return true;
}
function get_datasets_for_export($questionid){
$datasetdefs = array();
if (!empty($questionid)) {
global $CFG;
$sql = "SELECT i.*
FROM {$CFG->prefix}question_datasets d,
{$CFG->prefix}question_dataset_definitions i
WHERE d.question = '$questionid'
AND d.datasetdefinition = i.id
";
if ($records = get_records_sql($sql)) {
foreach ($records as $r) {
$def = $r ;
if ($def->category=='0'){
$def->status='private';
} else {
$def->status='shared';
}
$def->type ='calculated' ;
list($distribution, $min, $max,$dec) = explode(':', $def->options, 4);
$def->distribution=$distribution;
$def->minimum=$min;
$def->maximum=$max;
$def->decimals=$dec ;
if ($def->itemcount > 0 ) {
// get the datasetitems
$def->items = array();
$sql1= (" SELECT itemnumber, definition, id, value
FROM {$CFG->prefix}question_dataset_items
WHERE definition = '$def->id' order by itemnumber ASC ");
if ($items = get_records_sql($sql1)){
$n = 0;
foreach( $items as $ii){
$n++;
$def->items[$n] = new stdClass;
$def->items[$n]->itemnumber=$ii->itemnumber;
$def->items[$n]->value=$ii->value;
}
$def->number_of_items=$n ;
}
}
$datasetdefs["1-$r->category-$r->name"] = $def;
}
}
}
return $datasetdefs ;
}
function save_question_options($question) {
//$options = $question->subtypeoptions;
// Get old answers:
@ -137,10 +182,71 @@ class question_calculated_qtype extends question_dataset_dependent_questiontype
// Save units
$virtualqtype = $this->get_virtual_qtype();
$virtualqtype->save_numerical_units($question);
if( isset($question->import_process)&&$question->import_process){
$this->import_datasets($question);
}
return true;
}
function import_datasets($question){
$n = count($question->dataset);
foreach ($question->dataset as $dataset) {
// name, type, option,
$datasetdef = new stdClass();
$datasetdef->name = $dataset->name;
$datasetdef->type = 1 ;
$datasetdef->options = $dataset->distribution.':'.$dataset->min.':'.$dataset->max.':'.$dataset->length;
$datasetdef->itemcount=$dataset->itemcount;
if ( $dataset->status =='private'){
$datasetdef->category = 0;
$todo='create' ;
}else if ($dataset->status =='shared' ){
if ($sharedatasetdefs = get_records_select(
'question_dataset_definitions',
"type = '1'
AND name = '$dataset->name'
AND category = '$question->category'
ORDER BY id DESC;"
)) { // so there is at least one
$sharedatasetdef = array_shift($sharedatasetdefs);
if ( $sharedatasetdef->options == $datasetdef->options ){// identical so use it
$todo='useit' ;
$datasetdef =$sharedatasetdef ;
} else { // different so create a private one
$datasetdef->category = 0;
$todo='create' ;
}
}
}
if ( $todo=='create'){
if (!$datasetdef->id = insert_record(
'question_dataset_definitions', $datasetdef)) {
error("Unable to create dataset $defid");
}
}
// Create relation to the dataset:
$questiondataset = new stdClass;
$questiondataset->question = $question->id;
$questiondataset->datasetdefinition = $datasetdef->id;
if (!insert_record('question_datasets',
$questiondataset)) {
error("Unable to create relation to dataset $name");
}
if ($todo=='create'){ // add the items
foreach ($dataset->datasetitem as $dataitem ){
$datasetitem = new stdClass;
$datasetitem->definition=$datasetdef->id ;
$datasetitem->itemnumber = $dataitem->itemnumber ;
$datasetitem->value = $dataitem->value ;
// echo "<pre>loaded qo";print_r($datasetitem);echo "</pre>";
if (!insert_record('question_dataset_items', $datasetitem)) {
error("Unable to insert dataset item $item->itemnumber with $item->value for $datasetdef->name");
}
}
}
}
}
function create_runtime_question($question, $form) {
$question = parent::create_runtime_question($question, $form);
$question->options->answers = array();