/// Used for user activity reports.
/// $return->time = the time they did it
/// $return->info = a short text description
- if ($grade = get_record_sql("SELECT * FROM quiz_grades WHERE user = '$user->id' AND quiz = '$quiz->id'")) {
+ if ($grade = get_record("quiz_grades", "user", $user->id, "quiz", $quiz->id)) {
if ($grade->grade) {
$result->info = get_string("grade").": $grade->grade";
function quiz_grades($quizid) {
/// Must return an array of grades, indexed by user, and a max grade.
- $return->grades = get_records_sql_menu("SELECT user,grade FROM quiz_grades WHERE quiz = '$quizid'");
+ $return->grades = get_records_menu("quiz_grades", "quiz", $quizid, "", "user,grade");
$return->maxgrade = get_field("quiz", "grade", "id", "$quizid");
return $return;
}
+/// SQL FUNCTIONS ////////////////////////////////////////////////////////////////////
+
+function quiz_move_questions($category1, $category2) {
+ global $CFG;
+ return execute_sql("UPDATE {$CFG->prefix}quiz_questions
+ SET category = '$category2'
+ WHERE category = '$category1'",
+ false);
+}
+
+function quiz_get_question_grades($quizid, $questionlist) {
+ global $CFG;
+
+ return get_records_sql("SELECT question,grade
+ FROM {$CFG->prefix}quiz_question_grades
+ WHERE quiz = '$quizid'
+ AND question IN ($questionlist)");
+}
+
+function quiz_get_grade_records($quiz) {
+/// Gets all info required to display the table of quiz results
+/// for report.php
+ global $CFG;
+
+ return get_records_sql("SELECT qg.*, u.firstname, u.lastname, u.picture
+ FROM {$CFG->prefix}quiz_grades qg,
+ {$CFG->prefix}user u
+ WHERE qg.quiz = '$quiz->id'
+ AND qg.user = u.id");
+}
+
+function quiz_get_answers($question) {
+// Given a question, returns the correct answers and grades
+ global $CFG;
+ switch ($question->type) {
+ case SHORTANSWER; // Could be multiple answers
+ return get_records_sql("SELECT a.*, sa.usecase, g.grade
+ FROM {$CFG->prefix}quiz_shortanswer sa,
+ {$CFG->prefix}quiz_answers a,
+ {$CFG->prefix}quiz_question_grades g
+ WHERE sa.question = '$question->id'
+ AND sa.question = a.question
+ AND sa.question = g.question");
+ break;
+
+ case TRUEFALSE; // Should be always two answers
+ return get_records_sql("SELECT a.*, g.grade
+ FROM {$CFG->prefix}quiz_answers a,
+ {$CFG->prefix}quiz_question_grades g
+ WHERE a.question = '$question->id'
+ AND a.question = g.question");
+ break;
+
+ case MULTICHOICE; // Should be multiple answers
+ return get_records_sql("SELECT a.*, mc.single, g.grade
+ FROM {$CFG->prefix}quiz_multichoice mc,
+ {$CFG->prefix}quiz_answers a,
+ {$CFG->prefix}quiz_question_grades g
+ WHERE mc.question = '$question->id'
+ AND mc.question = a.question
+ AND mc.question = g.question");
+ break;
+
+ case RANDOM:
+ return false; // Not done yet
+ break;
+
+ default:
+ return false;
+ }
+}
+
+
+function quiz_get_attempt_responses($attempt) {
+// Given an attempt object, this function gets all the
+// stored responses and returns them in a format suitable
+// for regrading using quiz_grade_attempt_results()
+ global $CFG;
+
+ if (!$responses = get_records_sql("SELECT q.id, q.type, r.answer
+ FROM {$CFG->prefix}quiz_responses r,
+ {$CFG->prefix}quiz_questions q
+ WHERE r.attempt = '$attempt->id'
+ AND q.id = r.question")) {
+ notify("Could not find any responses for that attempt!");
+ return false;
+ }
+
+ foreach ($responses as $key => $response) {
+ $responses[$key]->answer = explode(",",$response->answer);
+ }
+
+ return $responses;
+}
+
+
+
//////////////////////////////////////////////////////////////////////////////////////
/// Any other quiz functions go here. Each of them must have a name that
/// starts with quiz_
if ($published) {
$publish = "OR publish = '1'";
}
- return get_records_sql_menu("SELECT id,name FROM quiz_categories WHERE course='$courseid' $publish ORDER by name ASC");
+ return get_records_select_menu("quiz_categories", "course='$courseid' $publish", "name ASC", "id,name");
}
function quiz_print_category_form($course, $current) {
// Prints a form to choose categories
- if (!$categories = get_records_sql("SELECT * FROM quiz_categories WHERE course='$course->id' OR publish = '1' ORDER by name ASC")) {
+ if (!$categories = get_records_select("quiz_categories", "course='$course->id' OR publish = '1'", "name ASC")) {
if (!$category = quiz_get_default_category($course->id)) {
notify("Error creating a default category!");
return false;
// Given a list of question IDs, finds grades or invents them to
// create an array of matching grades
- $questions = get_records_sql("SELECT question,grade FROM quiz_question_grades
- WHERE quiz = '$quizid'
- AND question IN ($questionlist)");
+ $questions = quiz_get_question_grades($quizid, $questionlist);
$list = explode(",", $questionlist);
$grades = array();
function quiz_get_user_attempt_unfinished($quizid, $userid) {
// Returns an object containing an unfinished attempt (if there is one)
- return get_record_sql("SELECT * FROM quiz_attempts
- WHERE quiz = '$quizid' and user = '$userid' AND timefinish = 0");
+ return get_record("quiz_attempts", "quiz", $quizid, "user", $userid, "timefinish", 0);
}
function quiz_get_user_attempts($quizid, $userid) {
// Returns a list of all attempts by a user
- return get_records_sql("SELECT * FROM quiz_attempts
- WHERE quiz = '$quizid' and user = '$userid' AND timefinish > 0
- ORDER by attempt ASC");
+ return get_records_select("quiz_attempts", "quiz = '$quizid' AND user = '$userid' AND timefinish > 0",
+ "attempt ASC");
}
function quiz_get_best_grade($quizid, $userid) {
/// Get the best current grade for a particular user in a quiz
- if (!$grade = get_record_sql("SELECT * FROM quiz_grades WHERE quiz = '$quizid' and user = '$userid'")) {
+ if (!$grade = get_record("quiz_grades", "quiz", $quizid, "user", $userid)) {
return 0;
}
return (round($grade->grade,0));
}
-function quiz_get_grade_records($quiz) {
-/// Gets all info required to display the table of quiz results
-/// for report.php
-
- return get_records_sql("SELECT qg.*, u.firstname, u.lastname, u.picture
- FROM quiz_grades qg, user u
- WHERE qg.quiz = '$quiz->id'
- AND qg.user = u.id");
-}
-
function quiz_save_best_grade($quiz, $userid) {
/// Calculates the best grade out of all attempts at a quiz for a user,
/// and then saves that grade in the quiz_grades table.
$bestgrade = quiz_calculate_best_grade($quiz, $attempts);
$bestgrade = (($bestgrade / $quiz->sumgrades) * $quiz->grade);
- if ($grade = get_record_sql("SELECT * FROM quiz_grades WHERE quiz='$quiz->id' AND user='$userid'")) {
+ if ($grade = get_record("quiz_grades", "quiz", $quiz->id, "user", $userid)) {
$grade->grade = $bestgrade;
$grade->timemodified = time();
if (!update_record("quiz_grades", $grade)) {
}
-function quiz_get_answers($question) {
-// Given a question, returns the correct answers and grades
- switch ($question->type) {
- case SHORTANSWER; // Could be multiple answers
- return get_records_sql("SELECT a.*, sa.usecase, g.grade
- FROM quiz_shortanswer sa, quiz_answers a, quiz_question_grades g
- WHERE sa.question = '$question->id'
- AND sa.question = a.question
- AND sa.question = g.question");
- break;
-
- case TRUEFALSE; // Should be always two answers
- return get_records_sql("SELECT a.*, g.grade
- FROM quiz_answers a, quiz_question_grades g
- WHERE a.question = '$question->id'
- AND a.question = g.question");
- break;
-
- case MULTICHOICE; // Should be multiple answers
- return get_records_sql("SELECT a.*, mc.single, g.grade
- FROM quiz_multichoice mc, quiz_answers a, quiz_question_grades g
- WHERE mc.question = '$question->id'
- AND mc.question = a.question
- AND mc.question = g.question");
- break;
-
- case RANDOM:
- return false; // Not done yet
- break;
-
- default:
- return false;
- }
-}
-
function quiz_calculate_best_grade($quiz, $attempts) {
/// Calculate the best grade for a quiz given a number of attempts by a particular user.
}
-function quiz_get_attempt_responses($attempt) {
-// Given an attempt object, this function gets all the
-// stored responses and returns them in a format suitable
-// for regrading using quiz_grade_attempt_results()
-
- if (!$responses = get_records_sql("SELECT q.id, q.type, r.answer
- FROM quiz_responses r, quiz_questions q
- WHERE r.attempt = '$attempt->id'
- AND q.id = r.question")) {
- notify("Could not find any responses for that attempt!");
- return false;
- }
-
- foreach ($responses as $key => $response) {
- $responses[$key]->answer = explode(",",$response->answer);
- }
-
- return $responses;
-}
-
?>
projects / moodle.git / commitdiff