blob: 8f2a51c74d6780a7b1ba2627e4a8a5ba74010f43 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Migration_actually_deduplicate_file_storage extends CI_Migration {
public function up()
{
$prefix = $this->db->dbprefix;
if ($this->db->dbdriver == 'postgre') {
// likely no need for this migration since 14 won't be buggy
throw new \exceptions\ApiException("migration/postgres/not-implemented", "migration 15 not yet implemented for postgres");
} else {
// XXX: This query also exists in migration 14
$this->db->query('
DELETE file_storage
FROM file_storage
LEFT OUTER JOIN files ON files.file_storage_id = file_storage.id
WHERE file_storage.id NOT IN (
SELECT min(x.id)
FROM (
SELECT fs.id, fs.hash
FROM file_storage fs
) x
GROUP BY x.hash
)
AND files.id IS NULL
');
$chunk = 500;
$total = $this->db->count_all("file_storage");
$consistent = true;
for ($limit = 0; $limit < $total; $limit += $chunk) {
$query = $this->db->select('hash, id')
->from('file_storage')
->limit($chunk, $limit)
->get()->result_array();
foreach ($query as $key => $item) {
$data_id = $item["hash"].'-'.$item["id"];
$file = $this->mfile->file($data_id);
if (!file_exists($file)) {
echo "Warning: no file found for $data_id\n";
$consistent = false;
}
}
}
if (!$consistent) {
echo "Your database is not consistent with your file system.\n";
echo "Please report this as it is most likely a bug.\n";
}
}
}
public function down()
{
throw new \exceptions\ApiException("migration/downgrade-not-supported", "downgrade not supported");
}
}
|
