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https://github.com/silverstripe/silverstripe-fulltextsearch
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Merge pull request #75 from tractorcow/spelling-suggestions
API Support custom files / spelling correction
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commit
931a1105a9
@ -96,6 +96,12 @@ class Solr {
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/** @var [SolrService_Core] - The instances of SolrService_Core for each core */
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static protected $service_core_singletons = array();
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/**
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* Get a SolrService
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*
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* @param string $core Optional core name
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* @return SolrService_Core
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*/
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static function service($core = null) {
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$options = self::solr_options();
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@ -143,8 +149,54 @@ class Solr {
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class Solr_Configure extends BuildTask {
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public function run($request) {
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$service = Solr::service();
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// Find the IndexStore handler, which will handle uploading config files to Solr
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$store = $this->getSolrConfigStore();
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$indexes = Solr::get_indexes();
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foreach ($indexes as $instance) {
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try {
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$this->updateIndex($instance, $store);
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} catch(Exception $e) {
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// We got an exception. Warn, but continue to next index.
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$this->log("Failure: " . $e->getMessage());
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}
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}
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}
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/**
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* Update the index on the given store
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*
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* @param SolrIndex $instance Instance
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* @param SolrConfigStore $store
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*/
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protected function updateIndex($instance, $store) {
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$index = $instance->getIndexName();
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$this->log("Configuring $index.");
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$this->log("Uploading configuration ... ");
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// Upload the config files for this index
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$instance->uploadConfig($store);
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// Then tell Solr to use those config files
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$service = Solr::service();
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if ($service->coreIsActive($index)) {
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$this->log("Reloading core ...");
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$service->coreReload($index);
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} else {
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$this->log("Creating core ...");
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$service->coreCreate($index, $store->instanceDir($index));
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}
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$this->log("Done");
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}
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/**
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* Get config store
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*
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* @return SolrConfigStore
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*/
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protected function getSolrConfigStore() {
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$options = Solr::solr_options();
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if (!isset($options['indexstore']) || !($indexstore = $options['indexstore'])) {
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@ -155,46 +207,24 @@ class Solr_Configure extends BuildTask {
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$mode = $indexstore['mode'];
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if ($mode == 'file') {
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$store = new SolrConfigStore_File($indexstore);
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return new SolrConfigStore_File($indexstore);
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} elseif ($mode == 'webdav') {
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$store = new SolrConfigStore_WebDAV($indexstore);
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return new SolrConfigStore_WebDAV($indexstore);
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} elseif (ClassInfo::exists($mode) && ClassInfo::classImplements($mode, 'SolrConfigStore')) {
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$store = new $mode($indexstore);
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return new $mode($indexstore);
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} else {
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user_error('Unknown Solr index mode '.$indexstore['mode'], E_USER_ERROR);
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}
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foreach ($indexes as $instance) {
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$index = $instance->getIndexName();
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echo "Configuring $index. \n"; flush();
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}
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try {
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// Upload the config files for this index
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echo "Uploading configuration ... \n"; flush();
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$store->uploadString($index, 'schema.xml', (string)$instance->generateSchema());
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foreach (glob($instance->getExtrasPath().'/*') as $file) {
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if (is_file($file)) $store->uploadFile($index, $file);
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}
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// Then tell Solr to use those config files
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if ($service->coreIsActive($index)) {
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echo "Reloading core ... \n";
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$service->coreReload($index);
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} else {
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echo "Creating core ... \n";
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$service->coreCreate($index, $store->instanceDir($index));
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}
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// And done
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echo "Done\n";
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} catch(Exception $e) {
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// We got an exception. Warn, but continue to next index.
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echo "Failure: " . $e->getMessage() . "\n"; flush();
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}
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protected function log($message) {
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if(Director::is_cli()) {
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echo $message . "\n";
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} else {
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echo Convert::raw2xml($message) . "<br />";
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}
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flush();
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}
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}
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@ -142,6 +142,26 @@ abstract class SolrIndex extends SearchIndex {
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return implode("\n\t\t", $xml);
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}
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/**
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* Extract first suggestion text from collated values
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*
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* @param mixed $collation
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* @return string
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*/
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protected function getCollatedSuggestion($collation = '') {
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if(is_string($collation)) {
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return $collation;
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}
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if(is_object($collation)) {
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if(isset($collation->misspellingsAndCorrections)) {
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foreach($collation->misspellingsAndCorrections as $key => $value) {
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return $value;
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}
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}
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}
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return '';
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}
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/**
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* Extract a human friendly spelling suggestion from a Solr spellcheck collation string.
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* @param String $collation
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@ -472,14 +492,18 @@ abstract class SolrIndex extends SearchIndex {
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* @param SearchQuery $query
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* @param integer $offset
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* @param integer $limit
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* @param Array $params Extra request parameters passed through to Solr
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* @param array $params Extra request parameters passed through to Solr
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* @return ArrayData Map with the following keys:
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* - 'Matches': ArrayList of the matched object instances
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*/
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public function search(SearchQuery $query, $offset = -1, $limit = -1, $params = array()) {
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$service = $this->getService();
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SearchVariant::with(count($query->classes) == 1 ? $query->classes[0]['class'] : null)->call('alterQuery', $query, $this);
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$searchClass = count($query->classes) == 1
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? $query->classes[0]['class']
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: null;
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SearchVariant::with($searchClass)
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->call('alterQuery', $query, $this);
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$q = array(); // Query
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$fq = array(); // Filter query
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@ -665,15 +689,18 @@ abstract class SolrIndex extends SearchIndex {
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// Suggestions. Requires spellcheck.collate=true in $params
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if(isset($res->spellcheck->suggestions->collation)) {
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// Extract string suggestion
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$suggestion = $this->getCollatedSuggestion($res->spellcheck->suggestions->collation);
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// The collation, including advanced query params (e.g. +), suitable for making another query programmatically.
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$ret['Suggestion'] = $res->spellcheck->suggestions->collation;
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$ret['Suggestion'] = $suggestion;
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// A human friendly version of the suggestion, suitable for 'Did you mean $SuggestionNice?' display.
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$ret['SuggestionNice'] = $this->getNiceSuggestion($res->spellcheck->suggestions->collation);
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$ret['SuggestionNice'] = $this->getNiceSuggestion($suggestion);
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// A string suitable for appending to an href as a query string.
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// For example <a href="http://example.com/search?q=$SuggestionQueryString">$SuggestionNice</a>
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$ret['SuggestionQueryString'] = $this->getSuggestionQueryString($res->spellcheck->suggestions->collation);
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$ret['SuggestionQueryString'] = $this->getSuggestionQueryString($suggestion);
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}
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}
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@ -694,4 +721,25 @@ abstract class SolrIndex extends SearchIndex {
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$this->service = $service;
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return $this;
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}
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/**
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* Upload config for this index to the given store
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*
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* @param SolrConfigStore $store
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*/
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public function uploadConfig($store) {
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// Upload the config files for this index
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$store->uploadString(
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$this->getIndexName(),
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'schema.xml',
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(string)$this->generateSchema()
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);
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// Upload additional files
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foreach (glob($this->getExtrasPath().'/*') as $file) {
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if (is_file($file)) {
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$store->uploadFile($this->getIndexName(), $file);
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}
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}
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}
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}
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@ -863,6 +863,10 @@
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<str>nameOfCustomComponent2</str>
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</arr>
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-->
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<arr name="last-components">
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<str>spellcheck</str>
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</arr>
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</requestHandler>
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<!-- A request handler that returns indented JSON by default -->
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@ -1254,7 +1258,31 @@
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<!-- a spellchecker built from a field of the main index -->
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<lst name="spellchecker">
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<str name="name">default</str>
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<str name="field">text</str>
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<str name="field">_text</str>
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<str name="classname">solr.DirectSolrSpellChecker</str>
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<!-- the spellcheck distance measure used, the default is the internal levenshtein -->
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<str name="distanceMeasure">internal</str>
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<!-- minimum accuracy needed to be considered a valid spellcheck suggestion -->
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<float name="accuracy">0.5</float>
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<!-- the maximum #edits we consider when enumerating terms: can be 1 or 2 -->
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<int name="maxEdits">2</int>
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<!-- the minimum shared prefix when enumerating terms -->
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<int name="minPrefix">1</int>
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<!-- maximum number of inspections per result. -->
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<int name="maxInspections">5</int>
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<!-- minimum length of a query term to be considered for correction -->
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<int name="minQueryLength">4</int>
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<!-- maximum threshold of documents a query term can appear to be considered for correction -->
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<float name="maxQueryFrequency">0.01</float>
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<!-- uncomment this to require suggestions to occur in 1% of the documents
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<float name="thresholdTokenFrequency">.01</float>
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-->
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</lst>
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<!-- Custom spellcheck dictionary limited to an optional _spellcheckText field -->
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<lst name="spellchecker">
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<str name="name">_spellcheck</str>
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<str name="field">_spellcheckText</str>
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<str name="classname">solr.DirectSolrSpellChecker</str>
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<!-- the spellcheck distance measure used, the default is the internal levenshtein -->
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<str name="distanceMeasure">internal</str>
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@ -1279,7 +1307,7 @@
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<lst name="spellchecker">
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<str name="name">wordbreak</str>
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<str name="classname">solr.WordBreakSolrSpellChecker</str>
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<str name="field">name</str>
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<str name="field">_text</str>
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<str name="combineWords">true</str>
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<str name="breakWords">true</str>
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<int name="maxChanges">10</int>
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