Throw an exception if the user tries to include an non-existing pattern

Author: stmh

src/aleksip/DataTransformPlugin/DataTransformer.php

@@ -7,6 +7,8 @@
 use PatternLab\Data;
 use PatternLab\PatternData;
 
+class PatternNotFoundException extends \Exception {}
+
 class DataTransformer
 {
  protected static $processed = array();
@@ -59,20 +61,26 @@ protected function processPattern($pattern)
  return;
  }
  $this->setProcessed($pattern);
- $patternSpecificData =
- $this->processData(Data::getPatternSpecificData($pattern))
- ;
- $dataStore = Data::get();
- foreach (array_keys($patternSpecificData) as $key) {
- if (!isset($dataStore['patternSpecific'][$pattern]['data'][$key])) {
+ try {
+ $patternSpecificData =
+ $this->processData(Data::getPatternSpecificData($pattern));
+
+
+ $dataStore = Data::get();
+ foreach (array_keys($patternSpecificData) as $key) {
+ if (!isset($dataStore['patternSpecific'][$pattern]['data'][$key])) {
  // Value is default global data.
  if (is_object($dataStore[$key])) {
-  $patternSpecificData[$key] = clone $dataStore[$key];
+ $patternSpecificData[$key] = clone $dataStore[$key];
  }
+ }
  }
+ Data::initPattern($pattern);
+ Data::setPatternData($pattern, $patternSpecificData);
+ }
+ catch (PatternNotFoundException $exception) {
+ throw new PatternNotFoundException("Pattern '$pattern': " . $exception->getMessage());
  }
- Data::initPattern($pattern);
- Data::setPatternData($pattern, $patternSpecificData);
  }
 
  protected function processData($data)
@@ -119,6 +127,9 @@ protected function processKey($data, $key)
  }
  $data[$key] = $this->renderPattern($pattern, $patternData);
  }
+ else {
+ throw new PatternNotFoundException("Could not find pattern '$pattern' to include!");
+ }
  }
  elseif (isset($value['join()']) && is_array($value['join()'])) {
  $data[$key] = join($value['join()']);