<?php
$cid = isset($_POST['cid']) ? $_POST['cid'] : '';
$course = course_load($cid);
if (isset($_POST['submit'])) {
if (course_is_empty($_POST['id'])) {
delete_course($_POST['id']);
sleep(1);
header('location: ' . currentURL() . '?p=course');
print 'Course deleted. Click <a href="?p=course">here</a> to view created courses';
} else {
print '<span style="color: red;">This course contains ' . count_posts_from_cid($_POST['id']) . ' post' . (count_posts_from_cid($_POST['id']) == 0 || count_posts_from_cid($_POST['id']) == 1 ? '' : 's') . '. Please delete all the posts before deleting the course</span>';
}
}
?>
<h3>Do you want to delete the course "<?php
print $course['Course_Name'];
?>
"?</h3>
<form method="post" action="">
<input type="hidden" name="id" value="<?php
print $cid;
?>
"/>
<input type="submit" name="submit" value="Delete" />
<a class="button" href="?p=course">Cancel</a>
</form>
function chart_questions_per_course()
{
$output = '';
$courses = courses_load_from_uid($_SESSION['uid']);
$output .= '<h2>Number of questions and their figures in your courses</h2><div id="mychart" style="width: 1024px; min-height: 320px;"></div>';
$output .= '<script>
(function() {
YUI().use("charts-legend", function (Y)
{
var myDataValues = [
';
for ($i = 0; $i < count($courses); $i++) {
$output .= '
{course: "' . $courses[$i]['Course_Code'] . '", "Questions": ' . count_posts_from_cid($courses[$i]['Course_ID']) . ', "Likes": ' . count_post_likes_from_cid($courses[$i]['Course_ID']) . ', "Dislikes": ' . count_post_dislikes_from_cid($courses[$i]['Course_ID']) . ', "Follows": ' . count_post_follows_from_cid($courses[$i]['Course_ID']) . ', "Comments": ' . count_comments_from_cid($courses[$i]['Course_ID']) . ($i != count($courses) - 1 ? '},' : '}');
}
$output .= ' ];
var myAxes = {
values:{
position:"left",
type:"numeric",
maximum: "NumericAxis",
minimum: 0,
roundingMethod: "niceNumber",
alwaysShowZero:true
}
};
var styleDef = {
axes: {
course: {
label: {
rotation: -90
}
}
}
};
var mychart = new Y.Chart({
legend: {
position: "right",
width: 350,
height: 350,
styles: {
hAlign: "center",
hSpacing: 4
}
},
dataProvider:myDataValues,
render:"#mychart",
type: "column",
axes:myAxes,
styles: styleDef,
interactionType:"marker",
seriesKeys:["Questions","Likes","Dislikes","Follows","Comments"],
horizontalGridlines: true,
verticalGridlines: true,
categoryKey:"course",
tooltip: {
styles: {
backgroundColor: "#414042",
color: "#fff",
borderColor: "#fff",
textAlign: "center"
}
}
});
});
})();
</script>';
return $output;
}