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php-guestbook
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Message Deletion

This commit is contained in:
Dusk 2021-12-21 20:28:43 +01:00
parent 7f02744efe
commit 6b2b17b74e
2 changed files with 36 additions and 15 deletions
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30
index.php
View File

@ -3,24 +3,32 @@
require_once('persistence.php');
$db = createDB();
?>
<html lang="ca">
<html lang="en">
<head>
<meta charset="utf-8"/>
<title>Guestbook</title>
</head>
<body>
<table border="1">
<?php
//storeMessage($db, 'Hola Dendy');
$test = getMessages($db);
foreach($test as $msg) {
echo('<tr>');
foreach($msg as $key => $value) {
echo("<td>$key: $value</td>");
}
echo('</tr>');
//storeMessage($db, 'Hola Dendy');
if(deleteMessage($db, 1)) {
echo('Success');
}
else {
echo('Failure');
}
$test = getMessages($db);
foreach($test as $msg) {
echo('<div class="message">');
foreach($msg as $key => $value) {
echo('<div class="content">');
echo("$key: $value");
echo('</div>');
}
echo('</div>');
echo('<br/>');
}
?>
</table>
</body>
</html>

21
persistence.php
View File

@ -3,7 +3,6 @@
function createDB($db_name = 'guestbook.db'): SQLite3 {
// Can't create table if it already exists
$exists = file_exists($db_name);
$db = new SQLite3($db_name);
if(!$exists) {
@ -43,7 +42,6 @@ function getMessages(SQLite3 $db, array $filter = [], int $limit = 25) {
// Prepare statement
$query = 'SELECT * FROM message' . $append_string;
//var_dump($query);
$statement = $db->prepare($query);
foreach($filter as $key => $value) {
@ -51,7 +49,6 @@ function getMessages(SQLite3 $db, array $filter = [], int $limit = 25) {
}
$result = $statement->execute();
$notnull = true;
$ret = [];
while($notnull) {
@ -67,7 +64,9 @@ function getMessages(SQLite3 $db, array $filter = [], int $limit = 25) {
}
function storeMessage(SQLite3 $db, string $content, ?int $user_id = null) {
$query = 'INSERT INTO message(id_user, content, date) VALUES (:id_user, :content, :date)';
$query = 'INSERT INTO message(id_user, content, date)
VALUES (:id_user, :content, :date)';
$date = (new DateTime('now'))->getTimestamp();
$statement = $db->prepare($query);
$statement->bindParam(':id_user', $user_id);
@ -75,3 +74,17 @@ function storeMessage(SQLite3 $db, string $content, ?int $user_id = null) {
$statement->bindParam(':date', $date);
$statement->execute();
}
function deleteMessage(SQLite3 $db, int $message_id) : int {
$query = 'DELETE FROM message
WHERE id_msg = :id_msg';
$statement = $db->prepare($query);
$statement->bindParam(':id_msg', $message_id);
$result = $statement->execute();
if ($result === false) {
return -1;
}
// Number of changed rows
return $db->changes();
}