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1 | <?php |
2 | /** |
3 | * |
4 | * This file is part of the phpBB Forum Software package. |
5 | * |
6 | * @copyright (c) phpBB Limited <https://www.phpbb.com> |
7 | * @license GNU General Public License, version 2 (GPL-2.0) |
8 | * |
9 | * For full copyright and license information, please see |
10 | * the docs/CREDITS.txt file. |
11 | * |
12 | */ |
13 | |
14 | namespace phpbb\config; |
15 | |
16 | /** |
17 | * Manages configuration options with an arbitrary length value stored in a TEXT |
18 | * column. In constrast to class \phpbb\config\db, values are never cached and |
19 | * prefetched, but every get operation sends a query to the database. |
20 | */ |
21 | class db_text |
22 | { |
23 | /** |
24 | * Database connection |
25 | * @var \phpbb\db\driver\driver_interface |
26 | */ |
27 | protected $db; |
28 | |
29 | /** |
30 | * Name of the database table used. |
31 | * @var string |
32 | */ |
33 | protected $table; |
34 | |
35 | /** |
36 | * @param \phpbb\db\driver\driver_interface $db Database connection |
37 | * @param string $table Table name |
38 | */ |
39 | public function __construct(\phpbb\db\driver\driver_interface $db, $table) |
40 | { |
41 | $this->db = $db; |
42 | $this->table = $this->db->sql_escape($table); |
43 | } |
44 | |
45 | /** |
46 | * Sets the configuration option with the name $key to $value. |
47 | * |
48 | * @param string $key The configuration option's name |
49 | * @param string $value New configuration value |
50 | * |
51 | * @return void |
52 | */ |
53 | public function set($key, $value) |
54 | { |
55 | $this->set_array(array($key => $value)); |
56 | } |
57 | |
58 | /** |
59 | * Gets the configuration value for the name $key. |
60 | * |
61 | * @param string $key The configuration option's name |
62 | * |
63 | * @return string|null String result on success |
64 | * null if there is no such option |
65 | */ |
66 | public function get($key) |
67 | { |
68 | $map = $this->get_array(array($key)); |
69 | |
70 | return isset($map[$key]) ? $map[$key] : null; |
71 | } |
72 | |
73 | /** |
74 | * Removes the configuration option with the name $key. |
75 | * |
76 | * @param string $key The configuration option's name |
77 | * |
78 | * @return void |
79 | */ |
80 | public function delete($key) |
81 | { |
82 | $this->delete_array(array($key)); |
83 | } |
84 | |
85 | /** |
86 | * Mass set configuration options: Receives an associative array, |
87 | * treats array keys as configuration option names and associated |
88 | * array values as their configuration option values. |
89 | * |
90 | * @param array $map Map from configuration names to values |
91 | * |
92 | * @return void |
93 | */ |
94 | public function set_array(array $map) |
95 | { |
96 | $this->db->sql_transaction('begin'); |
97 | |
98 | foreach ($map as $key => $value) |
99 | { |
100 | $sql = 'UPDATE ' . $this->table . " |
101 | SET config_value = '" . $this->db->sql_escape($value) . "' |
102 | WHERE config_name = '" . $this->db->sql_escape($key) . "'"; |
103 | $this->db->sql_query($sql); |
104 | |
105 | if (!$this->db->sql_affectedrows()) |
106 | { |
107 | $sql = 'INSERT INTO ' . $this->table . ' ' . $this->db->sql_build_array('INSERT', array( |
108 | 'config_name' => (string) $key, |
109 | 'config_value' => (string) $value, |
110 | )); |
111 | $this->db->sql_query($sql); |
112 | } |
113 | } |
114 | |
115 | $this->db->sql_transaction('commit'); |
116 | } |
117 | |
118 | /** |
119 | * Mass get configuration options: Receives a set of configuration |
120 | * option names and returns the result as a key => value map where |
121 | * array keys are configuration option names and array values are |
122 | * associated config option values. |
123 | * |
124 | * @param array $keys Set of configuration option names |
125 | * |
126 | * @return array Map from configuration names to values |
127 | */ |
128 | public function get_array(array $keys) |
129 | { |
130 | $sql = 'SELECT * |
131 | FROM ' . $this->table . ' |
132 | WHERE ' . $this->db->sql_in_set('config_name', $keys, false, true); |
133 | $result = $this->db->sql_query($sql); |
134 | |
135 | $map = array(); |
136 | while ($row = $this->db->sql_fetchrow($result)) |
137 | { |
138 | $map[$row['config_name']] = $row['config_value']; |
139 | } |
140 | $this->db->sql_freeresult($result); |
141 | |
142 | return $map; |
143 | } |
144 | |
145 | /** |
146 | * Mass delete configuration options. |
147 | * |
148 | * @param array $keys Set of configuration option names |
149 | * |
150 | * @return void |
151 | */ |
152 | public function delete_array(array $keys) |
153 | { |
154 | $sql = 'DELETE |
155 | FROM ' . $this->table . ' |
156 | WHERE ' . $this->db->sql_in_set('config_name', $keys, false, true); |
157 | $this->db->sql_query($sql); |
158 | } |
159 | } |