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ZHANG David
tutorat
Commits
7e5e77e6
Commit
7e5e77e6
authored
5 months ago
by
ZHANG David
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code/manage_sessions_admin.php
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7e5e77e6
<?php
ini_set
(
'display_errors'
,
1
);
ini_set
(
'display_startup_errors'
,
1
);
error_reporting
(
E_ALL
);
include
'config.php'
;
session_start
();
// Vérification de connexion et rôle
if
(
!
isset
(
$_SESSION
[
'user'
])
||
$_SESSION
[
'user'
][
'role'
]
!==
'admin'
)
{
header
(
'Location: login.php'
);
exit
;
}
$user
=
$_SESSION
[
'user'
];
// Supprimer une session si une requête POST est envoyée (uniquement si autorisé)
if
(
$_SERVER
[
'REQUEST_METHOD'
]
===
'POST'
&&
isset
(
$_POST
[
'delete_session_id'
]))
{
$session_id
=
$conn
->
real_escape_string
(
$_POST
[
'delete_session_id'
]);
// Supprimer les étudiants liés à cette session
$delete_students
=
$conn
->
prepare
(
"DELETE FROM SessionStudent WHERE session_id = ?"
);
$delete_students
->
bind_param
(
"i"
,
$session_id
);
$delete_students
->
execute
();
// Supprimer la session elle-même
$delete_session
=
$conn
->
prepare
(
"DELETE FROM Session WHERE id = ?"
);
$delete_session
->
bind_param
(
"i"
,
$session_id
);
if
(
$delete_session
->
execute
())
{
$success
=
"Session deleted successfully!"
;
}
else
{
$error
=
"Error deleting session: "
.
$conn
->
error
;
}
$delete_students
->
close
();
$delete_session
->
close
();
}
// Récupérer toutes les sessions avec le nombre d'étudiants inscrits
$sessions
=
[];
$sql
=
"
SELECT s.id, s.subject, s.start_time, s.end_time, s.tutor_id,
COUNT(ss.student_id) AS student_count
FROM Session s
LEFT JOIN SessionStudent ss ON s.id = ss.session_id
GROUP BY s.id, s.subject, s.start_time, s.end_time, s.tutor_id
"
;
$stmt
=
$conn
->
prepare
(
$sql
);
$stmt
->
execute
();
$result
=
$stmt
->
get_result
();
while
(
$row
=
$result
->
fetch_assoc
())
{
$sessions
[]
=
$row
;
}
$stmt
->
close
();
?>
<!DOCTYPE html>
<html
lang=
"en"
>
<head>
<meta
charset=
"UTF-8"
>
<meta
name=
"viewport"
content=
"width=device-width, initial-scale=1.0"
>
<title>
View All Sessions
</title>
<link
rel=
"stylesheet"
href=
"style.css"
>
</head>
<body>
<?php
include
'sidebar.php'
;
?>
<div
class=
"main-content"
>
<div
class=
"manage-sessions-admin"
>
<h1>
Toutes les sessions
</h1>
<?php
if
(
isset
(
$success
))
:
?>
<p
class=
"success"
>
<?=
htmlspecialchars
(
$success
)
?>
</p>
<?php
endif
;
?>
<?php
if
(
isset
(
$error
))
:
?>
<p
class=
"error"
>
<?=
htmlspecialchars
(
$error
)
?>
</p>
<?php
endif
;
?>
<div
class=
"table-container"
>
<?php
if
(
!
empty
(
$sessions
))
:
?>
<table>
<thead>
<tr>
<th>
Subject
</th>
<th>
Start Time
</th>
<th>
End Time
</th>
<th>
Number of Students
</th>
<th>
Tutor ID
</th>
<th>
Actions
</th>
</tr>
</thead>
<tbody>
<?php
foreach
(
$sessions
as
$session
)
:
?>
<tr>
<td>
<?=
htmlspecialchars
(
$session
[
'subject'
])
?>
</td>
<td>
<?=
htmlspecialchars
(
date
(
'd/m/Y H:i'
,
strtotime
(
$session
[
'start_time'
])))
?>
</td>
<td>
<?=
htmlspecialchars
(
date
(
'H:i'
,
strtotime
(
$session
[
'end_time'
])))
?>
</td>
<td>
<?=
htmlspecialchars
(
$session
[
'student_count'
])
?>
</td>
<td>
<?=
htmlspecialchars
(
$session
[
'tutor_id'
])
?>
</td>
<td>
<form
method=
"POST"
style=
"display:inline;"
>
<input
type=
"hidden"
name=
"delete_session_id"
value=
"
<?=
htmlspecialchars
(
$session
[
'id'
])
?>
"
>
<button
type=
"submit"
onclick=
"return confirm('Are you sure you want to delete this session?')"
>
Delete
</button>
</form>
</td>
</tr>
<?php
endforeach
;
?>
</tbody>
</table>
<?php
else
:
?>
<p>
No sessions available.
</p>
<?php
endif
;
?>
</div>
<br>
</div>
</body>
</html>
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