/**
* Populates the default on a single field if it's not already set
* and the default generated is not a null value or empty array.
*
* @param Field $field
* @return bool Returns true if a non null/empty default was applied or already present.
*/
private function populateDefault(Field $field)
{
if ($this->has($field->getName())) {
return true;
}
$default = $field->getDefault($this);
if (null === $default) {
return false;
}
if ($field->isASingleValue()) {
$this->data[$field->getName()] = $default;
unset($this->clearedFields[$field->getName()]);
return true;
}
if (empty($default)) {
return false;
}
/*
* sets have a special handling to deal with unique values
*/
if ($field->isASet()) {
$this->addToSet($field->getName(), $default);
return true;
}
$this->data[$field->getName()] = $default;
unset($this->clearedFields[$field->getName()]);
return true;
}