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chamilo-lms
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[svn r14117] More fixes to avoid SQL errors when handling a wrongly-removed-course

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Returning null so the calling script (mySpace/index.php) knows when there has been a problem
skala
Yannick Warnier 17 years ago
parent 5ba502e2e2
commit 02b964fd20
1 changed files with 135 additions and 114 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 249
      main/inc/lib/tracking.lib.php

249
main/inc/lib/tracking.lib.php
Unescape View File

@ -181,36 +181,43 @@ class Tracking {
// get the informations of the course
$a_course = CourseManager :: get_course_information($course_code);
// table definition
$tbl_course_lp_view = Database :: get_course_table(TABLE_LP_VIEW, $a_course['db_name']);
$tbl_course_lp_view_item = Database :: get_course_table(TABLE_LP_ITEM_VIEW, $a_course['db_name']);
$tbl_course_lp_item = Database :: get_course_table(TABLE_LP_ITEM, $a_course['db_name']);
$tbl_course_lp = Database :: get_course_table(TABLE_LP_MAIN, $a_course['db_name']);
//get the list of learning paths
$sql = 'SELECT id FROM ' . $tbl_course_lp;
$rs = api_sql_query($sql, __FILE__, __LINE__);
$nb_lp = mysql_num_rows($rs);
$avg_progress = 0;
if ($nb_lp > 0) {
while ($lp = Database :: fetch_array($rs)) {
// get the progress in learning pathes
$sqlProgress = "SELECT progress
FROM " . $tbl_course_lp_view . " AS lp_view
WHERE lp_view.user_id = " . $student_id . "
AND lp_view.lp_id = " . $lp['id'] . "
";
$resultItem = api_sql_query($sqlProgress, __FILE__, __LINE__);
if(Database::num_rows($resultItem)>0)
{
$avg_progress += mysql_result($resultItem, 0, 0);
if(!empty($a_course['db_name']))
{
// table definition
$tbl_course_lp_view = Database :: get_course_table(TABLE_LP_VIEW, $a_course['db_name']);
$tbl_course_lp_view_item = Database :: get_course_table(TABLE_LP_ITEM_VIEW, $a_course['db_name']);
$tbl_course_lp_item = Database :: get_course_table(TABLE_LP_ITEM, $a_course['db_name']);
$tbl_course_lp = Database :: get_course_table(TABLE_LP_MAIN, $a_course['db_name']);
//get the list of learning paths
$sql = 'SELECT id FROM ' . $tbl_course_lp;
$rs = api_sql_query($sql, __FILE__, __LINE__);
$nb_lp = mysql_num_rows($rs);
$avg_progress = 0;
if ($nb_lp > 0) {
while ($lp = Database :: fetch_array($rs)) {
// get the progress in learning pathes
$sqlProgress = "SELECT progress
FROM " . $tbl_course_lp_view . " AS lp_view
WHERE lp_view.user_id = " . $student_id . "
AND lp_view.lp_id = " . $lp['id'] . "
";
$resultItem = api_sql_query($sqlProgress, __FILE__, __LINE__);
if(Database::num_rows($resultItem)>0)
{
$avg_progress += mysql_result($resultItem, 0, 0);
}
}
$avg_progress = round($avg_progress / $nb_lp, 1);
}
$avg_progress = round($avg_progress / $nb_lp, 1);
return $avg_progress;
}
else
{
return null;
}
return $avg_progress;
}
function get_avg_student_score($student_id, $course_code) {
@ -219,97 +226,104 @@ class Tracking {
$course_user_table = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
$table_session_course_user = Database :: get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
$course = CourseManager :: get_course_information($course_code);
$lp_table = Database :: get_course_table(TABLE_LP_MAIN,$course['db_name']);
$lp_item_table = Database :: get_course_table(TABLE_LP_ITEM,$course['db_name']);
$lp_view_table = Database :: get_course_table(TABLE_LP_VIEW,$course['db_name']);
$lp_item_view_table = Database :: get_course_table(TABLE_LP_ITEM_VIEW,$course['db_name']);
$sql_course_lp = 'SELECT id FROM '.$lp_table;
$sql_result_lp = api_sql_query($sql_course_lp, __FILE__, __LINE__);
$lp_scorm_score_total = 0;
$lp_scorm_weighting_total = 0;
if(Database::num_rows($sql_result_lp)>0){
//Scorm
while($a_learnpath = mysql_fetch_array($sql_result_lp)){
$sql = 'SELECT id, max_score
FROM '.$lp_item_table.' AS lp_item
WHERE lp_id='.$a_learnpath['id'].'
AND item_type="sco" LIMIT 1';
$rs_lp_item_id_scorm = api_sql_query($sql, __FILE__, __LINE__);
if(Database::num_rows($rs_lp_item_id_scorm)>0){
$lp_item_id = mysql_result($rs_lp_item_id_scorm,0,'id');
$lp_item__max_score = mysql_result($rs_lp_item_id_scorm,0,'max_score');
if(!empty($course['db_name']))
{
$lp_table = Database :: get_course_table(TABLE_LP_MAIN,$course['db_name']);
$lp_item_table = Database :: get_course_table(TABLE_LP_ITEM,$course['db_name']);
$lp_view_table = Database :: get_course_table(TABLE_LP_VIEW,$course['db_name']);
$lp_item_view_table = Database :: get_course_table(TABLE_LP_ITEM_VIEW,$course['db_name']);
$sql_course_lp = 'SELECT id FROM '.$lp_table;
$sql_result_lp = api_sql_query($sql_course_lp, __FILE__, __LINE__);
$lp_scorm_score_total = 0;
$lp_scorm_weighting_total = 0;
if(Database::num_rows($sql_result_lp)>0){
//Scorm
while($a_learnpath = mysql_fetch_array($sql_result_lp)){
$sql = 'SELECT id, max_score
FROM '.$lp_item_table.' AS lp_item
WHERE lp_id='.$a_learnpath['id'].'
AND item_type="sco" LIMIT 1';
$rs_lp_item_id_scorm = api_sql_query($sql, __FILE__, __LINE__);
if(Database::num_rows($rs_lp_item_id_scorm)>0){
$lp_item_id = mysql_result($rs_lp_item_id_scorm,0,'id');
$lp_item__max_score = mysql_result($rs_lp_item_id_scorm,0,'max_score');
//We get the last view id of this LP
$sql='SELECT max(id) as id FROM '.$lp_view_table.' WHERE lp_id='.$a_learnpath['id'].' AND user_id="'.intval($student_id).'"';
$rs_last_lp_view_id = api_sql_query($sql, __FILE__, __LINE__);
$lp_view_id = mysql_result($rs_last_lp_view_id,0,'id');
$sql='SELECT SUM(score)/count(lp_item_id) as score FROM '.$lp_item_view_table.' WHERE lp_view_id="'.$lp_view_id.'" GROUP BY lp_view_id';
$rs_score = api_sql_query($sql, __FILE__, __LINE__);
if(Database::num_rows($rs_score)>0)
{
$lp_scorm_score = mysql_result($rs_score,0,'score');
$lp_scorm_score = ($lp_scorm_score / $lp_item__max_score) * 100;
$lp_scorm_score_total+=$lp_scorm_score;
$lp_scorm_weighting_total+=100;
}
}
}
mysql_data_seek($sql_result_lp,0);
//Quizz in LP
while($a_learnpath = Database::fetch_array($sql_result_lp)){
$sql = 'SELECT id as item_id, max_score
FROM '.$lp_item_table.' AS lp_item
WHERE lp_id='.$a_learnpath['id'].'
AND item_type="quiz"';
$rsItems = api_sql_query($sql, __FILE__, __LINE__);
//We get the last view id of this LP
$sql='SELECT max(id) as id FROM '.$lp_view_table.' WHERE lp_id='.$a_learnpath['id'].' AND user_id="'.intval($student_id).'"';
$rs_last_lp_view_id = api_sql_query($sql, __FILE__, __LINE__);
$lp_view_id = mysql_result($rs_last_lp_view_id,0,'id');
$sql='SELECT SUM(score)/count(lp_item_id) as score FROM '.$lp_item_view_table.' WHERE lp_view_id="'.$lp_view_id.'" GROUP BY lp_view_id';
$rs_score = api_sql_query($sql, __FILE__, __LINE__);
if(Database::num_rows($rs_score)>0)
$total_score = $total_weighting = 0;
while($item = Database :: fetch_array($rsItems, 'ASSOC'))
{
$lp_scorm_score = mysql_result($rs_score,0,'score');
$lp_scorm_score = ($lp_scorm_score / $lp_item__max_score) * 100;
$lp_scorm_score_total+=$lp_scorm_score;
$lp_scorm_weighting_total+=100;
$sql = 'SELECT score as student_score
FROM '.$lp_item_view_table.' as lp_view_item
WHERE lp_view_item.lp_item_id = '.$item['item_id'].'
AND lp_view_id = "'.$lp_view_id.'"
';
$rsScores = api_sql_query($sql, __FILE__, __LINE__);
if(Database::num_rows($rsScores)>0)
{
$total_score += mysql_result($rsScores, 0, 0);
$total_weighting += $item['max_score'];
$lp_scorm_score_total += ($total_score/$total_weighting)*100;
$lp_scorm_weighting_total+=100;
}
}
}
}
mysql_data_seek($sql_result_lp,0);
//Quizz in LP
while($a_learnpath = Database::fetch_array($sql_result_lp)){
$sql = 'SELECT id as item_id, max_score
FROM '.$lp_item_table.' AS lp_item
WHERE lp_id='.$a_learnpath['id'].'
AND item_type="quiz"';
$rsItems = api_sql_query($sql, __FILE__, __LINE__);
//We get the last view id of this LP
$sql='SELECT max(id) as id FROM '.$lp_view_table.' WHERE lp_id='.$a_learnpath['id'].' AND user_id="'.intval($student_id).'"';
$rs_last_lp_view_id = api_sql_query($sql, __FILE__, __LINE__);
$lp_view_id = mysql_result($rs_last_lp_view_id,0,'id');
$total_score = $total_weighting = 0;
while($item = Database :: fetch_array($rsItems, 'ASSOC'))
{
$sql = 'SELECT score as student_score
FROM '.$lp_item_view_table.' as lp_view_item
WHERE lp_view_item.lp_item_id = '.$item['item_id'].'
AND lp_view_id = "'.$lp_view_id.'"
';
$rsScores = api_sql_query($sql, __FILE__, __LINE__);
if(Database::num_rows($rsScores)>0)
{
$total_score += mysql_result($rsScores, 0, 0);
$total_weighting += $item['max_score'];
$lp_scorm_score_total += ($total_score/$total_weighting)*100;
$lp_scorm_weighting_total+=100;
}
}
$totalScore = $lp_scorm_score_total;
$pourcentageScore = 0;
if($lp_scorm_weighting_total>0)
{
$pourcentageScore = round(($totalScore * 100) / $lp_scorm_weighting_total);
}
return $pourcentageScore;
}
$totalScore = $lp_scorm_score_total;
$pourcentageScore = 0;
if($lp_scorm_weighting_total>0)
else
{
$pourcentageScore = round(($totalScore * 100) / $lp_scorm_weighting_total);
return null;
}
return $pourcentageScore;
}
/**
@ -590,15 +604,22 @@ class Tracking {
// get the informations of the course
$a_course = CourseManager :: get_course_information($course_code);
// table definition
$tbl_item_property = Database :: get_course_table(TABLE_ITEM_PROPERTY, $a_course['db_name']);
$sql = 'SELECT 1
FROM ' . $tbl_item_property . '
WHERE insert_user_id=' . $student_id . '
AND tool="work"';
$rs = api_sql_query($sql, __LINE__, __FILE__);
return mysql_num_rows($rs);
if(!empty($a_course['db_name']))
{
// table definition
$tbl_item_property = Database :: get_course_table(TABLE_ITEM_PROPERTY, $a_course['db_name']);
$sql = 'SELECT 1
FROM ' . $tbl_item_property . '
WHERE insert_user_id=' . $student_id . '
AND tool="work"';
$rs = api_sql_query($sql, __LINE__, __FILE__);
return mysql_num_rows($rs);
}
else
{
return null;
}
}
function count_student_messages($student_id, $course_code) {
@ -624,7 +645,7 @@ class Tracking {
}
else
{
return 0;
return null;
}
}

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