blob: 8c251c82075c698c750f09849fe143c953675463 (
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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
<?php
/**
* Copyright (c) 2013 Bart Visscher <bartv@thisnet.nl>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC\DB;
/**
* This handles the way we use to write queries, into something that can be
* handled by the database abstraction layer.
*/
class Adapter {
/**
* @var \OC\DB\Connection $conn
*/
protected $conn;
public function __construct($conn) {
$this->conn = $conn;
}
/**
* @param string $table name
* @return int id of last insert statement
*/
public function lastInsertId($table) {
return $this->conn->realLastInsertId($table);
}
/**
* @param string $statement that needs to be changed so the db can handle it
* @return string changed statement
*/
public function fixupStatement($statement) {
return $statement;
}
/**
* Insert a row if the matching row does not exists.
*
* @param string $table The table name (will replace *PREFIX* with the actual prefix)
* @param array $input data that should be inserted into the table (column name => value)
* @param array|null $compare List of values that should be checked for "if not exists"
* If this is null or an empty array, all keys of $input will be compared
* Please note: text fields (clob) must not be used in the compare array
* @return int number of inserted rows
* @throws \Doctrine\DBAL\DBALException
*/
public function insertIfNotExist($table, $input, array $compare = null) {
if (empty($compare)) {
$compare = array_keys($input);
}
$query = 'INSERT INTO `' .$table . '` (`'
. implode('`,`', array_keys($input)) . '`) SELECT '
. str_repeat('?,', count($input)-1).'? ' // Is there a prettier alternative?
. 'FROM `' . $table . '` WHERE ';
$inserts = array_values($input);
foreach($compare as $key) {
$query .= '`' . $key . '`';
if (is_null($input[$key])) {
$query .= ' IS NULL AND ';
} else {
$inserts[] = $input[$key];
$query .= ' = ? AND ';
}
}
$query = substr($query, 0, strlen($query) - 5);
$query .= ' HAVING COUNT(*) = 0';
return $this->conn->executeUpdate($query, $inserts);
}
}
|
