protected TypedConfigManager::replaceVariable($value, $data)
Replaces variable values in included names with configuration data.
Variable values are nested configuration keys that will be replaced by their value or some of these special strings:
- '%key', will be replaced by the element's key.
- '%parent', to reference the parent element.
- '%type', to reference the schema definition type. Can only be used in combination with %parent.
There may be nested configuration keys separated by dots or more complex patterns like '%parent.name' which references the 'name' value of the parent element.
Example patterns:
- 'name.subkey', indicates a nested value of the current element.
- '%parent.name', will be replaced by the 'name' value of the parent.
- '%parent.%key', will be replaced by the parent element's key.
- '%parent.%type', will be replaced by the schema type of the parent.
- '%parent.%parent.%type', will be replaced by the schema type of the parent's parent.
Parameters
string $value: Variable value to be replaced.
mixed $data: Configuration data for the element.
Return value
string The replaced value if a replacement found or the original value if not.
File
- core/lib/Drupal/Core/Config/TypedConfigManager.php, line 309
Class
- TypedConfigManager
- Manages config schema type plugins.
Namespace
Drupal\Core\Config
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | protected function replaceVariable($value, $data) { $parts = explode('.', $value); // Process each value part, one at a time. while ($name = array_shift($parts)) { if (!is_array($data) || !isset($data[$name])) { // Key not found, return original value return $value; } elseif (!$parts) { $value = $data[$name]; if (is_bool($value)) { $value = (int) $value; } // If no more parts left, this is the final property. return (string) $value; } else { // Get nested value and continue processing. if ($name == '%parent') { /** @var \Drupal\Core\Config\Schema\ArrayElement $parent */ // Switch replacement values with values from the parent. $parent = $data['%parent']; $data = $parent->getValue(); $data['%type'] = $parent->getDataDefinition()->getDataType(); // The special %parent and %key values now need to point one level up. if ($new_parent = $parent->getParent()) { $data['%parent'] = $new_parent; $data['%key'] = $new_parent->getName(); } } else { $data = $data[$name]; } } }} |
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