3 namespace Friendica\Core\Config;
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7 use Friendica\BaseObject;
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9 require_once 'include/dba.php';
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12 * Preload ConfigAdapter
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14 * Minimize the number of database queries to retrieve configuration values at the cost of memory.
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16 * @author Hypolite Petovan <mrpetovan@gmail.com>
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18 class PreloadConfigAdapter extends BaseObject implements IConfigAdapter
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20 private $config_loaded = false;
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22 public function __construct()
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27 public function load($family = 'config')
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29 if ($this->config_loaded) {
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33 $a = self::getApp();
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35 $configs = dba::select('config', ['cat', 'v', 'k']);
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36 while ($config = dba::fetch($configs)) {
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37 $cat = $config['cat'];
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39 $value = (preg_match("|^a:[0-9]+:{.*}$|s", $config['v']) ? unserialize($config['v']) : $config['v']);
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41 if ($cat === 'config') {
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42 $a->config[$k] = $value;
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44 $a->config[$cat][$k] = $value;
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47 dba::close($configs);
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49 $this->config_loaded = true;
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52 public function get($cat, $k, $default_value = null, $refresh = false)
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54 $a = self::getApp();
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56 $return = $default_value;
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58 if ($cat === 'config') {
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59 if (isset($a->config[$k])) {
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60 $return = $a->config[$k];
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63 if (isset($a->config[$cat][$k])) {
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64 $return = $a->config[$cat][$k];
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71 public function set($cat, $k, $value)
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73 $a = self::getApp();
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75 // We store our setting values as strings.
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76 // So we have to do the conversion here so that the compare below works.
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77 // The exception are array values.
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78 $compare_value = !is_array($value) ? (string)$value : $value;
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80 if ($this->get($cat, $k) === $compare_value) {
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84 if ($cat === 'config') {
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85 $a->config[$k] = $value;
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87 $a->config[$cat][$k] = $value;
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90 // manage array value
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91 $dbvalue = is_array($value) ? serialize($value) : $value;
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93 $result = dba::update('config', ['v' => $dbvalue], ['cat' => $cat, 'k' => $k], true);
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95 throw new Exception('Unable to store config value in [' . $cat . '][' . $k . ']');
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101 public function delete($cat, $k)
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103 $a = self::getApp();
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105 if ($cat === 'config') {
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106 if (isset($a->config[$k])) {
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107 unset($a->config[$k]);
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110 if (isset($a->config[$cat][$k])) {
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111 unset($a->config[$cat][$k]);
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115 $result = dba::delete('config', ['cat' => $cat, 'k' => $k]);
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