From 7b5203ad0f0ad058148111cbf024496f8ff521df Mon Sep 17 00:00:00 2001
From: Julio Montoya <gugli100@gmail.com>
Date: Thu, 6 Oct 2011 14:46:52 +0200
Subject: [PATCH] Adding exercice/stats.php file  see #3954

---
 main/exercice/stats.php | 91 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 main/exercice/stats.php

diff --git a/main/exercice/stats.php b/main/exercice/stats.php
new file mode 100644
index 0000000000..fa664c739b
--- /dev/null
+++ b/main/exercice/stats.php
@@ -0,0 +1,91 @@
+<?php
+
+require_once 'exercise.class.php';
+require_once 'exercise.lib.php';
+require_once 'question.class.php';
+require_once 'answer.class.php';
+
+$language_file = 'exercice';
+
+
+require_once '../inc/global.inc.php';
+$this_section = SECTION_COURSES;
+$exercise_id = (isset($_GET['exerciseId']) && !empty($_GET['exerciseId'])) ? intval($_GET['exerciseId']) : 0;
+
+$objExercise = new Exercise();
+$result = $objExercise->read($exercise_id);
+
+if (!$result) {
+	api_not_allowed(true);	
+}  
+
+$students = CourseManager :: get_student_list_from_course_code(api_get_course_id(), false);
+
+$question_list = $objExercise->get_validated_question_list();
+
+$data = array();
+//Question title 	# of students who tool it 	Lowest score 	Average 	Highest score 	Maximum score
+$headers = array(
+	get_lang('Question'), 
+	get_lang('NumberOfStudentWhoTryTheExercise'),
+	get_lang('LowestScore'), 
+	get_lang('Average'),
+	get_lang('HighestScore'),
+	get_lang('MaximumScore')	
+);
+
+
+if (!empty($question_list)) {
+	foreach($question_list as $question_id) {
+		$question_obj = Question::read($question_id);
+		$exercise_stats = get_student_stats_by_question($question_id, $exercise_id, api_get_course_id(), api_get_session_id());
+		
+		$data[$question_id]['name'] 						= cut($question_obj->question, 100);
+		$data[$question_id]['students_who_try_exercise'] 	= $exercise_stats['users'];
+		$data[$question_id]['lowest_score'] 				= $exercise_stats['min'];
+		$data[$question_id]['average_score'] 				= $exercise_stats['average'];
+		$data[$question_id]['highest_score'] 				= $exercise_stats['max'];
+		$data[$question_id]['max_score'] 					= $question_obj->weighting;
+	}
+}
+
+//Format A table
+$table = new HTML_Table(array('class' => 'data_table'));
+$row = 0;
+$column = 0;
+foreach ($headers as $header) {
+	$table->setHeaderContents($row, $column, $header);
+	$column++;
+}
+$row++;
+foreach ($data as $row_table) {	
+	$column = 0;
+	foreach ($row_table as $cell) {		
+		$table->setCellContents($row, $column, $cell);
+		$table->updateCellAttributes($row, $column, 'align="center"');
+		$column++;
+	}
+	$table->updateRowAttributes($row, $row % 2 ? 'class="row_even"' : 'class="row_odd"', true);
+	$row++;
+}
+$content = $table->toHtml();
+
+//Format B
+
+$headers = array(
+	get_lang('Question'),
+	get_lang('Answer'),
+	get_lang('Correct'),
+	get_lang('NumberStudentWhoSelect'),
+	get_lang('HighestScore'),
+	get_lang('MaximumScore')
+);
+
+
+
+$interbreadcrumb[] = array ("url" => "exercice.php?gradebook=$gradebook", "name" => get_lang('Exercices'));
+$interbreadcrumb[] = array ("url" => "admin.php?exerciseId=$exercise_id","name" => $objExercise->name);
+
+$tpl = new Template(get_lang('Stats'));
+$tpl->assign('content', $content);
+$tpl->display_one_col_template();
\ No newline at end of file