/**
* Get FieldData
*
* @param \File_MARC_Data_Field $field Field
*
* @return array|Boolean
*/
protected function getFieldData($field)
{
// Make sure that there is a t field to be displayed:
if ($title = $field->getSubfield('t')) {
$title = $title->getData();
} else {
return false;
}
// If set, display relationship information in i subfield
if ($relation = $field->getSubfield('i')) {
$relation = $relation->getData();
} else {
$relation = $this->getRecordLinkNote($field);
}
$linkTypeSetting = isset($this->mainConfig->Record->marc_links_link_types) ? $this->mainConfig->Record->marc_links_link_types : 'id,oclc,dlc,isbn,issn,title';
$linkTypes = explode(',', $linkTypeSetting);
$link = false;
if (in_array('id', $linkTypes)) {
// Search ID in field 9
$linkSubfield = $field->getSubfield('9');
if ($linkSubfield && ($bibLink = $this->getIdFromLinkingField($linkSubfield))) {
$link = ['type' => 'bib', 'value' => $bibLink];
}
} elseif (in_array('ctrlnum', $linkTypes)) {
// Extract ctrlnum from field w, ignore the prefix
$linkFields = $linkFields = $field->getSubfields('w');
foreach ($linkFields as $current) {
if (preg_match('/\\(([^)]+)\\)(.+)/', $current->getData(), $matches)) {
$link = ['type' => 'ctrlnum', 'value' => $matches[1] . $matches[2]];
}
}
}
// Found link based on special conditions, stop here
if ($link) {
return ['title' => $relation, 'value' => $title, 'link' => $link];
}
// Fallback to base method if no custom field found
return parent::getFieldData($field);
}
/**
* Returns the array element for the 'getAllRecordLinks' method
*
* @param File_MARC_Data_Field $field Field to examine
*
* @return array|bool Array on success, boolean false if no
* valid link could be found in the data.
*/
protected function getFieldData($field)
{
// Make sure that there is a t field to be displayed:
if ($title = $field->getSubfield('t')) {
$title = $title->getData();
} else {
return false;
}
$linkTypeSetting = isset($this->mainConfig->Record->marc_links_link_types) ? $this->mainConfig->Record->marc_links_link_types : 'id,oclc,dlc,isbn,issn,title';
$linkTypes = explode(',', $linkTypeSetting);
$linkFields = $field->getSubfields('w');
// Run through the link types specified in the config.
// For each type, check field for reference
// If reference found, exit loop and go straight to end
// If no reference found, check the next link type instead
foreach ($linkTypes as $linkType) {
switch (trim($linkType)) {
case 'oclc':
foreach ($linkFields as $current) {
if ($oclc = $this->getIdFromLinkingField($current, 'OCoLC')) {
$link = ['type' => 'oclc', 'value' => $oclc];
}
}
break;
case 'dlc':
foreach ($linkFields as $current) {
if ($dlc = $this->getIdFromLinkingField($current, 'DLC', true)) {
$link = ['type' => 'dlc', 'value' => $dlc];
}
}
break;
case 'id':
foreach ($linkFields as $current) {
if ($bibLink = $this->getIdFromLinkingField($current)) {
$link = ['type' => 'bib', 'value' => $bibLink];
}
}
break;
case 'isbn':
if ($isbn = $field->getSubfield('z')) {
$link = ['type' => 'isn', 'value' => trim($isbn->getData()), 'exclude' => $this->getUniqueId()];
}
break;
case 'issn':
if ($issn = $field->getSubfield('x')) {
$link = ['type' => 'isn', 'value' => trim($issn->getData()), 'exclude' => $this->getUniqueId()];
}
break;
case 'title':
$link = ['type' => 'title', 'value' => $title];
break;
}
// Exit loop if we have a link
if (isset($link)) {
break;
}
}
// Make sure we have something to display:
return !isset($link) ? false : ['title' => $this->getRecordLinkNote($field), 'value' => $title, 'link' => $link];
}
// File_MARC offers the ability to add subfields at any point within
// an existing set of subfields
// First, create some subfields
$subfields[] = new File_MARC_Subfield('a', 'nothing');
$subfields[] = new File_MARC_Subfield('z', 'everything');
// Then, create a field including those subfields
$field = new File_MARC_Data_Field('100', $subfields, '0');
// Create some new subfields
$subfield1 = new File_MARC_Subfield('g', 'a little');
$subfield2 = new File_MARC_Subfield('k', 'a bit more');
$subfield3 = new File_MARC_Subfield('t', 'a lot');
// Append a new subfield to the existing set of subfields
// Expected order: a-z-g
$field->appendSubfield($subfield1);
// Insert a new subfield after the first subfield with code 'z'
// Expected order: a-z-k-g
$sf = $field->getSubfields('z');
// getSubfields() always returns an array; we just want the first subfield
if (count($sf) > 0) {
$field->insertSubfield($subfield2, $sf[0]);
}
// Insert a new subfield prior to the first subfield with code 'z'
// Expected order: a-t-z-k-g
$sf = $field->getSubfield('z');
// getSubfield() simply returns the first matching subfield
if ($sf) {
$field->insertSubfield($subfield3, $sf, true);
}
// let's see the results
print $field;
print "\n";
/**
* @param File_MARC_Data_Field $marcField
* @param File_MARC_Subfield $subField
* @return string
*/
public function getSubfieldData($marcField, $subField)
{
if ($marcField) {
return $marcField->getSubfield($subField) ? $marcField->getSubfield($subField)->getData() : '';
} else {
return '';
}
}
/**
* Returns the array element for the 'getAllRecordLinks' method
*
* @param File_MARC_Data_Field $field Field to examine
* @param string $value Field name for use in label
*
* @access protected
* @return array|bool Array on success, boolean false if no
* valid link could be found in the data.
*/
protected function getFieldData($field, $value)
{
global $configArray;
$labelPrfx = 'note_';
$baseURI = $configArray['Site']['url'];
$relInfo = $field->getSubfield('i') ? $field->getSubfield('i')->getData() : '';
$title = $field->getSubfield('t') ? $field->getSubfield('t')->getData() : '';
$diff = $field->getSubfield('c') ? $field->getSubfield('c')->getData() : '';
$issn = $field->getSubfield('x') ? $field->getSubfield('x')->getData() : '';
$isbn = $field->getSubfield('z') ? $field->getSubfield('z')->getData() : '';
if ($diff) {
$title .= " {$diff}";
}
$fallbackTitle = '';
if (empty($title)) {
if (!empty($relInfo)) {
$fallbackTitle = $relInfo . ' ';
}
if (!empty($issn)) {
$fallbackTitle .= $issn;
} else {
$fallbackTitle .= $isbn;
}
}
// There are two possible ways we may want to link to a record with subfield w
// -- either we will have a raw bibliographic record in subfield w, or else we
// will have an OCLC number prefixed by (OCoLC). If we have both, we want to
// favor the bib number over the OCLC number. If we have an unrecognized
// parenthetical prefix to the number, we should simply ignore it.
$bib = $oclc = '';
$linkFields = $field->getSubfields('w');
foreach ($linkFields as $current) {
$text = $current->getData();
// Extract parenthetical prefixes:
if (preg_match('/\\(([^)]+)\\)(.+)/', $text, $matches)) {
// Is it an OCLC number?
if ($matches[1] == 'OCoLC') {
$oclc = $baseURI . '/Search/Results?lookfor=' . urlencode($matches[2]) . '&type=oclc_num&jumpto=1';
}
} else {
// No parenthetical prefix found -- assume raw bib number:
$bib = $baseURI . '/Record/' . $text;
}
}
// Check which link type we found in the code above... and use title search
// if we found nothing!
if (!empty($bib)) {
$link = $bib;
} else {
if (!empty($oclc)) {
$link = $oclc;
} else {
if (!empty($issn)) {
$link = $baseURI . '/Search/Results?lookfor=' . urlencode($issn) . '&type=ISN';
} else {
if (!empty($isbn)) {
$link = $baseURI . '/Search/Results?lookfor=' . urlencode($isbn) . '&type=ISN';
} else {
$link = $baseURI . '/Search/Results?lookfor=' . urlencode('"' . $title . '"') . '&type=Title';
}
}
}
}
return array('title' => $labelPrfx . $value, 'value' => empty($title) ? $fallbackTitle : $title, 'issn' => $issn, 'link' => $link);
}
/**
* MatchesConditions
*
* @param array $conditions Conditions
* @param \File_MARC_Data_Field $marcRecord MarcRecord
*
* @return bool
*/
protected function matchesConditions(array $conditions, \File_MARC_Data_Field $marcRecord)
{
if (empty($conditions)) {
return true;
}
$matchesOr = false;
$orConditionsCount = count($conditions);
$i = 0;
while (!$matchesOr && $i < $orConditionsCount) {
$j = 0;
$matchesAnd = true;
$andConditions = explode('&&', $conditions[$i]);
$andConditionsCount = count($andConditions);
while ($matchesAnd && $j < $andConditionsCount) {
list($subfieldKey, $subfieldValue) = explode('|', $andConditions[$j]);
$subfield = $marcRecord->getSubfield(trim($subfieldKey));
$matchesAnd = $subfield && preg_match('/' . trim($subfieldValue) . '/', $subfield->getData());
$j++;
}
$matchesOr = $matchesOr || $matchesAnd;
$i++;
}
return $matchesOr;
}
/**
* Returns the array element for the 'getAllRecordLinks' method
*
* @param File_MARC_Data_Field $field Field to examine
* @param string $value Field name for use in label
*
* @return array|bool Array on success, boolean false if no
* valid link could be found in the data.
*/
protected function getFieldData($field, $value)
{
$labelPrfx = 'note_';
// There are two possible ways we may want to link to a record -- either
// we will have a raw bibliographic record in subfield w, or else we will
// have an OCLC number prefixed by (OCoLC). If we have both, we want to
// favor the bib number over the OCLC number. If we have an unrecognized
// parenthetical prefix to the number, we should simply ignore it.
$bib = $oclc = '';
$linkFields = $field->getSubfields('w');
foreach ($linkFields as $current) {
$text = $current->getData();
// Extract parenthetical prefixes:
if (preg_match('/\\(([^)]+)\\)(.+)/', $text, $matches)) {
// Is it an OCLC number?
if ($matches[1] == 'OCoLC') {
$oclc = $matches[2];
}
} else {
// No parenthetical prefix found -- assume raw bib number:
$bib = $text;
}
}
// Check which link type we found in the code above... and fail if we
// found nothing!
if (!empty($bib)) {
$link = array('type' => 'bib', 'value' => $bib);
} else {
if (!empty($oclc)) {
$link = array('type' => 'oclc', 'value' => $oclc);
} else {
return false;
}
}
return array('title' => $labelPrfx . $value, 'value' => $field->getSubfield('t')->getData(), 'link' => $link);
}
