/**
* Merge with another field, returning the new instance
*
* @param Field $other
* @return Field
* @throws MergeException
*/
public function mergeWith(Field $other)
{
if (($name = $other->getName()) !== $this->name) {
throw new MergeException(sprintf("Fields have different names (%s vs %s)", $this->name, $name));
}
// Since mapping is merged between databoxes, two fields may
// have conflicting names. Indexing is the same for a given
// type so we reject only those with different types.
if (($type = $other->getType()) !== $this->type) {
throw new MergeException(sprintf("Field %s can't be merged, incompatible types (%s vs %s)", $name, $type, $this->type));
}
if ($other->isPrivate() !== $this->is_private) {
throw new MergeException(sprintf("Field %s can't be merged, could not mix private and public fields with same name", $name));
}
if ($other->isSearchable() !== $this->is_searchable) {
throw new MergeException(sprintf("Field %s can't be merged, incompatible searchablility", $name));
}
if ($other->getFacetValuesLimit() !== $this->facet) {
throw new MergeException(sprintf("Field %s can't be merged, incompatible facet eligibility", $name));
}
$thesaurus_roots = null;
if ($this->thesaurus_roots !== null || $other->thesaurus_roots !== null) {
$thesaurus_roots = array_merge((array) $this->thesaurus_roots, (array) $other->thesaurus_roots);
}
$used_by_collections = array_values(array_unique(array_merge($this->used_by_collections, $other->used_by_collections), SORT_REGULAR));
return $this->withOptions(['thesaurus_roots' => $thesaurus_roots, 'used_by_collections' => $used_by_collections]);
}
private function addFieldToMapping(Field $field, Mapping $mapping)
{
$type = $field->getType();
$mapping->add($field->getName(), $type);
if ($type === Mapping::TYPE_DATE) {
$mapping->format(Mapping::DATE_FORMAT_CAPTION);
}
if ($type === Mapping::TYPE_STRING) {
$searchable = $field->isSearchable();
$facet = $field->isFacet();
if (!$searchable && !$facet) {
$mapping->notIndexed();
} else {
$mapping->addRawVersion();
$mapping->addAnalyzedVersion($this->locales);
$mapping->enableTermVectors(true);
}
}
}
