/**
* @param DataField $field
*
* @return string
*/
private function convertDataField(DataField $field)
{
$subFields = array_map(function (SubField $subField) {
return $this->convertSubField($subField);
}, $field->getSubFields());
return (string) implode($field->getIndicators()) . implode($subFields) . File_MARC::END_OF_FIELD;
}
/**
* @param array $content
*
* @return DataField
*/
private function convertArrayToDataField(array $content)
{
$field = new DataField($content['tag'], str_split($content['ind']));
foreach ($content['subfield'] as $subfield) {
$field->addSubField(new SubField($subfield['code'], $subfield['data']));
}
return $field;
}
/**
* @param \File_MARC_Data_Field $field
*
* @return DataField
*/
private function convertDataField(\File_MARC_Data_Field $field)
{
$tag = $field->getTag();
$ind1 = $field->getIndicator(1);
$ind2 = $field->getIndicator(2);
$dataField = new DataField($tag, [$ind1, $ind2]);
foreach ($field->getSubfields() as $subField) {
$dataField->addSubField($this->convertSubfield($subField));
}
return $dataField;
}
private function configDataField()
{
$this->reader->elementMap['{http://www.loc.gov/MARC21/slim}datafield'] = function (XMLReader $reader) {
$tag = $reader->getAttribute('tag');
$ind1 = $reader->getAttribute('ind1');
$ind2 = $reader->getAttribute('ind2');
$field = new DataField($tag, [$ind1, $ind2]);
$children = $reader->parseInnerTree();
foreach ($children as $child) {
$field->addSubField(new SubField($child['attributes']['code'], $child['value']));
}
return $field;
};
}