/**
* Merge this operation with a previous operation and return the
* resulting operation.
*
* @param FieldOperation $previous Previous Operation.
*
* @return FieldOperation
* @throws AVException
*/
public function _mergeWithPrevious($previous)
{
if (!$previous) {
return $this;
}
if ($previous instanceof DeleteOperation) {
return new SetOperation($this->value);
}
if ($previous instanceof SetOperation) {
return new SetOperation($previous->getValue() + $this->value);
}
if ($previous instanceof IncrementOperation) {
return new IncrementOperation($previous->getValue() + $this->value);
}
throw new AVException('Operation is invalid after previous operation.');
}
/**
* Takes a previous operation and returns a merged operation to replace it.
*
* @param FieldOperation $previous Previous operation.
*
* @return FieldOperation Merged operation.
* @throws AVException
*/
public function _mergeWithPrevious($previous)
{
if (!$previous) {
return $this;
}
if ($previous instanceof DeleteOperation) {
return $previous;
}
if ($previous instanceof SetOperation) {
return new SetOperation($this->_apply($previous->getValue(), $this->objects, null));
}
if ($previous instanceof RemoveOperation) {
$oldList = $previous->getValue();
return new RemoveOperation(array_merge((array) $oldList, (array) $this->objects));
}
throw new AVException('Operation is invalid after previous operation.');
}
/**
* Merge this operation with the previous operation and return the result.
*
* @param FieldOperation $previous Previous Operation.
*
* @return FieldOperation Merged Operation.
* @throws AVException
*/
public function _mergeWithPrevious($previous)
{
if (!$previous) {
return $this;
}
if ($previous instanceof DeleteOperation) {
return new SetOperation($this->objects);
}
if ($previous instanceof SetOperation) {
$oldValue = $previous->getValue();
$result = $this->_apply($oldValue, null, null);
return new SetOperation($result);
}
if ($previous instanceof AddUniqueOperation) {
$oldList = $previous->getValue();
$result = $this->_apply($oldList, null, null);
return new AddUniqueOperation($result);
}
throw new AVException('Operation is invalid after previous operation.');
}
/**
* Perform an operation on an object property.
*
* @param string $key Key to perform an operation upon.
* @param FieldOperation $operation Operation to perform.
*
* @return null
* @ignore
*/
public function _performOperation($key, FieldOperation $operation)
{
$oldValue = null;
if (isset($this->estimatedData[$key])) {
$oldValue = $this->estimatedData[$key];
}
$newValue = $operation->_apply($oldValue, $this, $key);
if ($newValue !== null) {
$this->estimatedData[$key] = $newValue;
} else {
if (isset($this->estimatedData[$key])) {
unset($this->estimatedData[$key]);
}
}
if (isset($this->operationSet[$key])) {
$oldOperations = $this->operationSet[$key];
$newOperations = $operation->_mergeWithPrevious($oldOperations);
$this->operationSet[$key] = $newOperations;
} else {
$this->operationSet[$key] = $operation;
}
$this->dataAvailability[$key] = true;
}
/**
* Merge this operation with a previous operation and return the new
* operation.
*
* @param FieldOperation $previous Previous operation.
*
* @return FieldOperation Merged operation result.
*
* @throws \Exception
*/
public function _mergeWithPrevious($previous)
{
if ($previous == null) {
return $this;
}
if ($previous instanceof AVRelationOperation) {
if ($previous->targetClassName != null && $previous->targetClassName != $this->targetClassName) {
throw new \Exception('Related object object must be of class ' . $this->targetClassName . ', but ' . $previous->targetClassName . ' was passed in.');
}
$newRelationToAdd = self::convertToOneDimensionalArray($this->relationsToAdd);
$newRelationToRemove = self::convertToOneDimensionalArray($this->relationsToRemove);
$previous->addObjects($newRelationToAdd, $previous->relationsToAdd);
$previous->removeObjects($newRelationToAdd, $previous->relationsToRemove);
$previous->removeObjects($newRelationToRemove, $previous->relationsToAdd);
$previous->addObjects($newRelationToRemove, $previous->relationsToRemove);
$newRelationToAdd = self::convertToOneDimensionalArray($previous->relationsToAdd);
$newRelationToRemove = self::convertToOneDimensionalArray($previous->relationsToRemove);
return new AVRelationOperation($newRelationToAdd, $newRelationToRemove);
}
throw new \Exception('Operation is invalid after previous operation.');
}
