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<?php
/**
* Provides Isis Database search methods.
*/
class IsisFinder extends IsisConnector {
/**
* Find the next repetition of a field.
*
* @param $entry
* Start entry number to begin the search.
*
* @param $field
* Field data.
*
* @return
* Next repetition entry and result.
*/
public function nextRepetition($field, $entry = 1) {
foreach(new IsisEntryIterator($this, $entry) as $entry => $result) {
if (count($this->getValues($field)) >= 2) {
return array($entry, $result);
}
}
return FALSE;
}
/**
* Find the next occurrence of a field.
*
* @param $entry
* Start entry number to begin the search.
*
* @param $field
* Field data.
*
* @return
* Next occurrence.
*/
public function nextField($field, $entry = 1) {
foreach(new IsisEntryIterator($this, $entry) as $entry => $result) {
if (count($this->getValues($field)) > 0) {
return array($entry, $result);
}
}
return FALSE;
}
/**
* Find the next occurrence of a subfield.
*
* @param $entry
* Start entry number to begin the search.
*
* @param $field
* Field data.
*
* @param $subfield
* Subfield name.
*
* @return
* Next occurrence.
*/
public function nextSubfield($field, $subfield, $entry = 1) {
foreach(new IsisEntryIterator($this, $entry) as $entry => $result) {
if ($this->hasSubfieldInRows($field, $subfield) !== FALSE) {
return array($entry, $result);
}
}
return FALSE;
}
/**
* Check if a field result has a given subfield.
*
* @param $field
* Field data.
*
* @param $subfield
* Subfield.
*
* @return
* True if result has the subfield, false otherwise.
*/
public function hasSubfieldInRows($field, $subfield) {
foreach (new IsisRowIterator($this, $field) as $row) {
if ($this->hasSubfield($field, $subfield, $row)) {
return $row;
}
}
return FALSE;
}
}
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