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<?PHP // $Id$
$CHOICE_MAX_NUMBER = 6;
$COLUMN_HEIGHT = 300;
define("CHOICE_PUBLISH_NOT", "0");
define("CHOICE_PUBLISH_ANONYMOUS", "1");
define("CHOICE_PUBLISH_NAMES", "2");
$CHOICE_PUBLISH = array (CHOICE_PUBLISH_NOT => get_string("publishnot", "choice"),
CHOICE_PUBLISH_ANONYMOUS => get_string("publishanonymous", "choice"),
CHOICE_PUBLISH_NAMES => get_string("publishnames", "choice"));
/// Standard functions /////////////////////////////////////////////////////////
function choice_user_outline($course, $user, $mod, $choice) {
if ($current = get_record("choice_answers", "choice", $choice->id, "userid", $user->id)) {
$result->info = "'".choice_get_answer($choice, $current->answer)."'";
$result->time = $current->timemodified;
return $result;
}
return NULL;
}
function choice_user_complete($course, $user, $mod, $choice) {
if ($current = get_record("choice_answers", "choice", $choice->id, "userid", $user->id)) {
$result->info = "'".choice_get_answer($choice, $current->answer)."'";
$result->time = $current->timemodified;
echo get_string("answered", "choice").": $result->info , last updated ".userdate($result->time);
} else {
print_string("notanswered", "choice");
}
}
function choice_add_instance($choice) {
// Given an object containing all the necessary data,
// (defined by the form in mod.html) this function
// will create a new instance and return the id number
// of the new instance.
$choice->timemodified = time();
return insert_record("choice", $choice);
}
function choice_update_instance($choice) {
// Given an object containing all the necessary data,
// (defined by the form in mod.html) this function
// will update an existing instance with new data.
$choice->id = $choice->instance;
$choice->timemodified = time();
return update_record("choice", $choice);
}
function choice_delete_instance($id) {
// Given an ID of an instance of this module,
// this function will permanently delete the instance
// and any data that depends on it.
if (! $choice = get_record("choice", "id", "$id")) {
return false;
}
$result = true;
if (! delete_records("choice_answers", "choice", "$choice->id")) {
$result = false;
}
if (! delete_records("choice", "id", "$choice->id")) {
$result = false;
}
return $result;
}
function choice_get_answer($choice, $code) {
// Returns text string which is the answer that matches the code
switch ($code) {
case 1:
return "$choice->answer1";
case 2:
return "$choice->answer2";
case 3:
return "$choice->answer3";
case 4:
return "$choice->answer4";
case 5:
return "$choice->answer5";
case 6:
return "$choice->answer6";
default:
return get_string("notanswered", "choice");
}
}
function choice_get_choice($choiceid) {
// Gets a full choice record
if ($choice = get_record("choice", "id", $choiceid)) {
$choice->answer[1] = $choice->answer1;
$choice->answer[2] = $choice->answer2;
$choice->answer[3] = $choice->answer3;
$choice->answer[4] = $choice->answer4;
$choice->answer[5] = $choice->answer5;
$choice->answer[6] = $choice->answer6;
return $choice;
} else {
return false;
}
}
function choice_get_participants($choiceid) {
//Returns the users with data in one choice
//(users with records in choice_answers, students)
global $CFG;
//Get students
$students = get_records_sql("SELECT DISTINCT u.*
FROM {$CFG->prefix}user u,
{$CFG->prefix}choice_answers c
WHERE c.choice = '$choiceid' and
u.id = c.userid");
//Return students array (it contains an array of unique users)
return ($students);
}
?>
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