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chamilo-lms
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[svn r14553] optimize a request (a few little queries are faster than a big query with lot of joins) and display the session name (FS#2302)

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skala
Eric Marguin 17 years ago
parent e1f6b85cc1
commit 72378a13f3
1 changed files with 57 additions and 27 deletions
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  1. 84
      main/mySpace/myStudents.php

84
main/mySpace/myStudents.php
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@ -437,33 +437,63 @@ if(!empty($_GET['student']))
$a_infosCours = CourseManager :: get_course_information($_GET['course']);
//get coach if there is one
$tbl_user = Database :: get_main_table(TABLE_MAIN_USER);
$tbl_session_course = Database :: get_main_table(TABLE_MAIN_SESSION_COURSE);
$tbl_session_course_user = Database :: get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
$sql = 'SELECT user.* FROM '.$tbl_user.' user
INNER JOIN '.$tbl_session_course.' session_course
ON user.user_id = session_course.id_coach
INNER JOIN '.$tbl_session_course_user.' session_course_user
ON session_course.id_session = session_course_user.id_session
AND session_course_user.id_user = '.intval($a_infosUser['user_id']).'
AND session_course_user.course_code = "'.Database::escape_string($_GET['course']).'"';
$rs = api_sql_query($sql,__FILE__,__LINE__);
if(mysql_num_rows($rs)>0)
$a_infosCours['tutor_name'] = mysql_result($rs,0,'firstname').' '.mysql_result($rs,0,'lastname');
$a_date_start = explode('-',$a_infosCours['date_start']);
$date_start = $a_date_start[2].'/'.$a_date_start[1].'/'.$a_date_start[0];
$a_date_end = explode('-',$a_infosCours['date_end']);
$date_end = $a_date_end[2].'/'.$a_date_end[1].'/'.$a_date_end[0];
$dateSession = get_lang('From').' '.$date_start.' '.get_lang('To').' '.$date_end;
$nb_login = Tracking :: count_login_per_student($a_infosUser['user_id'], $_GET['course']);
$tableTitle = $a_infosCours['title'].' | '.get_lang('CountToolAccess').' : '.$nb_login.'  |  '.get_lang('Tutor').' : '.stripslashes($a_infosCours['tutor_name']);
$csv_content[] = array();
$csv_content[] = array(str_replace(' ','',$tableTitle));
//get coach and session_name if there is one and if session_mode is activated
if(api_get_setting('use_session_mode')=='true')
{
$tbl_user = Database :: get_main_table(TABLE_MAIN_USER);
$tbl_session = Database :: get_main_table(TABLE_MAIN_SESSION);
$tbl_session_course = Database :: get_main_table(TABLE_MAIN_SESSION_COURSE);
$tbl_session_course_user = Database :: get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
$sql = 'SELECT id_session
FROM '.$tbl_session_course_user.' session_course_user
WHERE session_course_user.id_user = '.intval($a_infosUser['user_id']).'
AND session_course_user.course_code = "'.Database::escape_string($_GET['course']).'"
ORDER BY id_session DESC';
$rs = api_sql_query($sql,__FILE__,__LINE__);
$le_session_id = intval(mysql_result($rs,0,0));
if($le_session_id>0)
{
// get session name and coach of the session
$sql = 'SELECT name, id_coach FROM '.$tbl_session.'
WHERE id='.$le_session_id;
$rs = api_sql_query($sql,__FILE__,__LINE__);
$session_name = mysql_result($rs,0,'name');
$session_coach_id = intval(mysql_result($rs,0,'id_coach'));
// get coach of the course in the session
$sql = 'SELECT id_coach FROM '.$tbl_session_course.'
WHERE id_session='.$le_session_id.'
AND course_code = "'.Database::escape_string($_GET['course']).'"';
$rs = api_sql_query($sql,__FILE__,__LINE__);
$session_course_coach_id = intval(mysql_result($rs,0,0));
if($session_course_coach_id!=0)
{
$coach_infos = UserManager :: get_user_info_by_id($session_course_coach_id);
$a_infosCours['tutor_name'] = $coach_infos['firstname'].' '.$coach_infos['lastname'];
}
else if($session_coach_id!=0)
{
$coach_infos = UserManager :: get_user_info_by_id($session_coach_id);
$a_infosCours['tutor_name'] = $coach_infos['firstname'].' '.$coach_infos['lastname'];
}
}
} // end if(api_get_setting('use_session_mode')=='true')
$a_date_start = explode('-',$a_infosCours['date_start']);
$date_start = $a_date_start[2].'/'.$a_date_start[1].'/'.$a_date_start[0];
$a_date_end = explode('-',$a_infosCours['date_end']);
$date_end = $a_date_end[2].'/'.$a_date_end[1].'/'.$a_date_end[0];
$dateSession = get_lang('From').' '.$date_start.' '.get_lang('To').' '.$date_end;
$nb_login = Tracking :: count_login_per_student($a_infosUser['user_id'], $_GET['course']);
$tableTitle = $a_infosCours['title'].' | '.get_lang('CountToolAccess').' : '.$nb_login.'  |  '.get_lang('Tutor').' : '.stripslashes($a_infosCours['tutor_name']).((!empty($session_name)) ? ' | '.get_lang('Session').' : '.$session_name : '');
$csv_content[] = array();
$csv_content[] = array(str_replace(' ','',$tableTitle));
?>
<tr class="tableName">

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