Basic Haystack Usage

usage.php

class Search extends CI_Controller
{
     $this->load->library('Haystack');
 
     // Create a new index
     $this->haystack->create_index('cars');
 
     // Set the index to work with for the next one or more IndexTank API calls
     $this->haystack->set_index('cars');
 
 
     // Add a single document to the currently selected index
     $docid = 1;
     $fields = array(
          'text' => 'The Chevrolet Impala is a full-size automobile built by the Chevrolet division of General Motors introduced for the 1958 model year.',
     );
 
     $this->haystack->add_document($docid, $fields);
 
 
     // Add multiple documents to the currently selected index
     $docs = array(
          array(
               'docid' => 1,
               'fields' => array(
                    'text' => 'The Chevrolet Impala is a full-size automobile built by the Chevrolet division of General Motors introduced for the 1958 model year.'
               )
          ),
          array(
               'docid' => 2,
               'fields' => array(
                    'text' => 'The Ford GT is a mid-engine two-seater sports car. Ford Motor Company produced the Ford GT for the 2005 to 2006 model years. The designers drew inspiration from Ford\'s GT40 race cars of the 1960s.'
               )
          )
     );
 
     $this->haystack->add_documents($docs);
 
 
     // Delete a single document from the currently selected index
     $this->haystack->delete_document(1);
 
 
     // Delete multiple documents from the currently selected index
     $docids = array(1, 2, 3, 10);
     $this->haystack->delete_documents($docids);
 
 
     // Select a different search index to work with and add a new document
     $this->haystack->set_index('trucks');
     $docid = 12;
     $fields = array(
          'text' => 'Bigfoot, introduced in 1979, is regarded as the original monster truck. Other trucks with the name "Bigfoot" have been introduced in the years since, and it remains the most well-known monster truck moniker in the United States.'
     );
 
     $this->haystack->add_document($docid, $fields);
 
 
     // Delete an entire search index and all of its documents
     $this->haystack->delete_index('vans');
 
 
     // Search in the currently selected index
     $terms = "monster truck";
     $results = $this->haystack->search($terms);
 
     if($results->matches == 0)
     {
          // No results found
     }
     else
     {
          // Results found. Loop through them and print the id.
          foreach($results->results as $doc)
          {
               echo "Found document {$doc->docid}<br />";
          }
     }
}