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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 $field
* Field name.
*
* @return
* Next repetition.
*/
public function nextRepetition($entry = 1, $field) {
$entry--;
// Query database.
do {
$result = $this->read(++$entry);
if ($entry == $entries) {
break;
}
} while (!isset($result[$field]) || count($result[$field]) < 2);
if (!isset($result[$field]) || count($result[$field]) < 2) {
return FALSE;
}
return $result;
}
/**
* Find the next occurrence of a field.
*
* @param $entry
* Start entry number to begin the search.
*
* @param $field
* Field name.
*
* @return
* Next occurrence.
*/
public function nextField($entry = 1, $field) {
$entry--;
// Query database.
do {
$result = $this->read(++$entry);
if ($entry == $entries) {
break;
}
} while (!isset($result[$field]));
if (!isset($result[$field])) {
return FALSE;
}
return $result;
}
/**
* Find the next occurrence of a subfield.
*
* @param $entry
* Start entry number to begin the search.
*
* @param $field
* Field name.
*
* @param $subfield
* Subfield name.
*
* @return
* Next occurrence.
*
* @todo
* The subfield might be in any now and not just
* in the first one.
*/
public function nextSubfield($entry = 1, $field, $subfield) {
$entry--;
// Query database.
do {
$result = $this->read(++$entry);
if ($entry == $entries) {
break;
}
} while (!isset($result[$field][0][$subfield]));
if (!isset($result[$field][0][$subfield])) {
return FALSE;
}
return $result;
}
}
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