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Changed database schema for groups & permissions. Implemented versioning.

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This commit is contained in:
Richard Underwood 2017-01-04 11:45:01 +00:00
parent 119e1376ee
commit f2377913f0
5 changed files with 138 additions and 25 deletions
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61
includes/database.inc.php Normal file
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@ -0,0 +1,61 @@
<?php
// matches version in scheme.sql
$db_version=2;
// Initialise a new DB with latest version
function init_db() {
global $authdb, $db;
is_dir(dirname($authdb)) || mkdir(dirname($authdb));
$db = new SQLite3($authdb, SQLITE3_OPEN_CREATE|SQLITE3_OPEN_READWRITE);
$createsql = file_get_contents('includes/scheme.sql');
$db->exec($createsql);
$salt = bin2hex(openssl_random_pseudo_bytes(16));
$db->exec("INSERT INTO users (emailaddress, password, isadmin) VALUES ('admin', '".crypt("admin", '$6$'.$salt)."', 1)");
return $db;
}
function open_db() {
global $authdb, $db;
if (!isset($db)) {
$db = new SQLite3($authdb, SQLITE3_OPEN_READWRITE);
$db->exec('PRAGMA foreign_keys = 1');
}
$version = intval($db->querySingle('SELECT value FROM metadata WHERE name = "version"'));
switch($version) {
case 0:
$sql = file_get_contents('includes/upgrade-0-1.sql');
$db->exec($sql);
writelog("Upgraded schema to version 1","system");
// continue
case 1: // never existed
$sql = file_get_contents('includes/upgrade-1-2.sql');
$db->exec($sql);
writelog("Upgraded schema to version 2","system");
// continue
case $db_version:
break;
}
return $db;
}
function get_db() {
global $authdb, $db;
if (!isset($db)) {
$db = new SQLite3($authdb, SQLITE3_OPEN_READWRITE);
$db->exec('PRAGMA foreign_keys = 1');
}
return $db;
}
?>