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<?php |
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namespace L10nBundle\Utils\Helper; |
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/** |
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* Provide array manipulation method |
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*/ |
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class L10nCatalogueHelper |
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{ |
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const LOCALE_KEY = 'locale'; |
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const VALUE_KEY = 'value'; |
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/** |
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* Transforms the config into a two dimensional array where a final element is a boolean, string or numeric value or |
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* an array of translations. |
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* This is done by grouping first keys with dots in order to create |
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* the idResource. The idLocalization is kept. |
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* |
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* It drops the elements that do not have the good structure. |
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* |
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* @param array $config |
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* @param string $prefixKey |
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* |
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* @return array |
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*/ |
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public function createCatalogue($config, $prefixKey = null) |
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{ |
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$flatArray = array(); |
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$configArrayDimension = $this->configLevel($config); |
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if (0 === $configArrayDimension) { |
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return $flatArray; |
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} |
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if (1 === $configArrayDimension) { |
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return $this->createResource($flatArray, $config, $prefixKey); |
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} |
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foreach ($config as $key => $subArray) { |
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$key = $prefixKey ? $prefixKey . '.' . $key : strval($key); |
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$flatArray = array_merge($flatArray, $this->createCatalogue($subArray, $key)); |
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} |
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return $flatArray; |
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} |
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/** |
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* Returns the level of the given config. |
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* The level is 0 if the config is a leaf. |
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* The level of an array is the max of the level of its elements plus one. |
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* |
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* @param array $config |
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* |
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* @return integer |
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*/ |
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private function configLevel($config) |
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{ |
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if (!$this->isLeaf($config)) { |
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return max(array_map(array($this, 'configLevel'), $config)) + 1; |
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} |
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return 0; |
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} |
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/** |
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* Returns true if the given config is a leaf. |
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* A leaf is either a boolean, string or numeric value or a non associative array. |
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* |
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* @param mixed $config |
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* |
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* @return boolean |
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*/ |
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private function isLeaf($config) |
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{ |
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if (is_array($config)) { |
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$associativeKeysCount = count(array_filter(array_keys($config), 'is_string')); |
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return $associativeKeysCount === 0; |
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} |
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return true; |
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} |
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/** |
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* @param array $flatArray |
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* @param array $config |
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* @param string $prefixKey |
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* |
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* @return array |
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*/ |
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private function createResource(array $flatArray, array $config, $prefixKey) |
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{ |
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if (null !== $prefixKey) { |
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$resourceArray = $this->formatResource($config); |
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if (count($resourceArray) > 0) { |
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$flatArray[$prefixKey] = $resourceArray; |
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} |
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} |
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return $flatArray; |
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} |
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/** |
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* Formats the given array to be in the format of a catalogue resource. |
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* A catalogue resource is the value (array) corresponding to a reource id. |
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* The format is an associative array of value. |
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* A value is either a boolean, string or numeric value or an associative array where each value is a boolean, |
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* string or numeric value. |
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* |
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* The value that cannot be matched in this format are dropped. |
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* |
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* @param array $rawResourceArray |
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* |
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* @return array |
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*/ |
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private function formatResource(array $rawResourceArray) |
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{ |
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$formattedResourceArray = array(); |
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foreach ($rawResourceArray as $key => $leaf) { |
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if (is_array($leaf)) { |
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$formattedLeafArray = $this->formatLeafArray($leaf); |
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if (count($formattedLeafArray) > 0) { |
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$formattedResourceArray[$key] = $formattedLeafArray; |
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} |
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} else { |
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$formattedResourceArray[$key] = $leaf; |
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} |
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} |
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return $formattedResourceArray; |
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} |
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/** |
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* Formats the given array to be in the format of a leaf. |
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* A leaf that is an array is an associative array with boolean, string or numeric values. |
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* The input format is a non associative array of associative array. |
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* Each associative array must contain: |
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* a string value for the key LOCALE_KEY which is the locale in the formatted array |
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* and a boolean, string or numeric value for the key VALUE_KEY which is the value in the formatted array. |
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* |
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* The value that cannot be matched in this format are dropped |
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* |
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* @param array $leafArray |
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* |
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* @return array |
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*/ |
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private function formatLeafArray(array $leafArray) |
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{ |
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$formattedLeafArray = array(); |
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foreach ($leafArray as $leafElement) { |
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if (!array_key_exists(self::LOCALE_KEY, $leafElement) || |
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!array_key_exists(self::VALUE_KEY, $leafElement)) { |
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continue; |
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} |
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$locale = $leafElement[self::LOCALE_KEY]; |
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$value = $leafElement[self::VALUE_KEY]; |
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if (!is_string($locale) || is_array($value)) { |
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continue; |
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} |
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$formattedLeafArray[$locale] = $value; |
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} |
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return $formattedLeafArray; |
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} |
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} |
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lafourchette /
L10nBundle
