1
|
|
|
<?php |
2
|
|
|
/* |
3
|
|
|
MIT License |
4
|
|
|
Copyright (c) 2010 - 2018 Peter Petermann |
5
|
|
|
|
6
|
|
|
Permission is hereby granted, free of charge, to any person |
7
|
|
|
obtaining a copy of this software and associated documentation |
8
|
|
|
files (the "Software"), to deal in the Software without |
9
|
|
|
restriction, including without limitation the rights to use, |
10
|
|
|
copy, modify, merge, publish, distribute, sublicense, and/or sell |
11
|
|
|
copies of the Software, and to permit persons to whom the |
12
|
|
|
Software is furnished to do so, subject to the following |
13
|
|
|
conditions: |
14
|
|
|
|
15
|
|
|
The above copyright notice and this permission notice shall be |
16
|
|
|
included in all copies or substantial portions of the Software. |
17
|
|
|
|
18
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
19
|
|
|
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES |
20
|
|
|
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
21
|
|
|
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
22
|
|
|
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
23
|
|
|
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
24
|
|
|
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
25
|
|
|
OTHER DEALINGS IN THE SOFTWARE. |
26
|
|
|
|
27
|
|
|
*/ |
28
|
|
|
|
29
|
|
|
namespace King23\Settings; |
30
|
|
|
|
31
|
|
|
use King23\Settings\SettingsInterface; |
32
|
|
|
|
33
|
|
|
class SettingsChain implements SettingsInterface |
34
|
|
|
{ |
35
|
|
|
/** @var SettingsInterface[] */ |
36
|
|
|
protected $settingsProviders = []; |
37
|
|
|
|
38
|
|
|
/** |
39
|
|
|
* registers a SettingsInterface as a possible provider for settings |
40
|
|
|
* last one registered is first one to be checked (!) |
41
|
|
|
* |
42
|
|
|
* @param SettingsInterface $settings |
43
|
|
|
* @return SettingsChain |
44
|
|
|
*/ |
45
|
|
|
public function registerSettingsProvider(SettingsInterface $settings): SettingsChain |
46
|
|
|
{ |
47
|
|
|
$this->settingsProviders[] = $settings; |
48
|
|
|
return $this; |
49
|
|
|
} |
50
|
|
|
|
51
|
|
|
/** |
52
|
|
|
* retrieve a settings value, will return $default if none is found |
53
|
|
|
* @param string $key |
54
|
|
|
* @param null|mixed $default |
55
|
|
|
* @return mixed |
56
|
|
|
*/ |
57
|
|
|
public function get($key, $default = null) |
58
|
|
|
{ |
59
|
|
|
/** @var SettingsInterface[] $providers */ |
60
|
|
|
$providers = array_reverse($this->settingsProviders); |
61
|
|
|
foreach ($providers as $provider) { |
62
|
|
|
if (!is_null($setting = $provider->get($key, null))) { |
63
|
|
|
return $setting; |
64
|
|
|
} |
65
|
|
|
} |
66
|
|
|
return $default; |
67
|
|
|
} |
68
|
|
|
} |
69
|
|
|
|