3 namespace Friendica\Core\Config;
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8 use Friendica\BaseObject;
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9 use Friendica\Database\DBM;
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11 require_once 'include/dba.php';
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14 * Preload Configuration Adapter
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16 * Minimizes the number of database queries to retrieve configuration values at the cost of memory.
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18 * @author Hypolite Petovan <mrpetovan@gmail.com>
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20 class PreloadConfigAdapter extends BaseObject implements IConfigAdapter
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22 private $config_loaded = false;
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24 public function __construct()
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29 public function load($family = 'config')
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31 if ($this->config_loaded) {
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35 $configs = dba::select('config', ['cat', 'v', 'k']);
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36 while ($config = dba::fetch($configs)) {
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37 self::getApp()->setConfigValue($config['cat'], $config['k'], $config['v']);
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39 dba::close($configs);
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41 $this->config_loaded = true;
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44 public function get($cat, $k, $default_value = null, $refresh = false)
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47 $config = dba::selectFirst('config', ['v'], ['cat' => $cat, 'k' => $k]);
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48 if (DBM::is_result($config)) {
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49 self::getApp()->setConfigValue($cat, $k, $config['v']);
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53 $return = self::getApp()->getConfigValue($cat, $k, $default_value);
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58 public function set($cat, $k, $value)
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60 // We store our setting values as strings.
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61 // So we have to do the conversion here so that the compare below works.
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62 // The exception are array values.
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63 $compare_value = !is_array($value) ? (string)$value : $value;
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65 if (self::getApp()->getConfigValue($cat, $k) === $compare_value) {
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69 self::getApp()->setConfigValue($cat, $k, $value);
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71 // manage array value
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72 $dbvalue = is_array($value) ? serialize($value) : $value;
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74 $result = dba::update('config', ['v' => $dbvalue], ['cat' => $cat, 'k' => $k], true);
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76 throw new Exception('Unable to store config value in [' . $cat . '][' . $k . ']');
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82 public function delete($cat, $k)
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84 self::getApp()->deleteConfigValue($cat, $k);
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86 $result = dba::delete('config', ['cat' => $cat, 'k' => $k]);
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