freenetis-github/application/controllers/search.php @ c2e44ab0
| 8baed187 | Michal Kliment | <?php defined('SYSPATH') or die('No direct script access.');
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/*
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* This file is part of open source system FreenetIS
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* and it is released under GPLv3 licence.
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*
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* More info about licence can be found:
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* http://www.gnu.org/licenses/gpl-3.0.html
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*
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* More info about project can be found:
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* http://www.freenetis.org/
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*
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*/
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/**
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* Controller handles search throught whole system.
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*
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* @author Michal Kliment
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*/
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class Search_Controller extends Controller
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{
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/**
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* Array with results of search
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*
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* @var array
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*/
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private $results = array();
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/**
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* Only redirects to method simple
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*
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* @author Michal Kliment
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*/
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public function index()
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{
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url::redirect('search/simple/' . $this->input->get('keyword'));
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}
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/**
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* Base method, makes search.
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* Search result is placed to property $results
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*
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* @author Michal Kliment
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* @param string $keyword
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*/
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private function search($keyword = NULL)
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{
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$keywords = explode(" ", trim($keyword));
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$keys = array();
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// finds all possible variations
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for ($i = count($keywords); $i > 0; $i--)
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$keys = arr::merge($keys, arr::variation($keywords, $i));
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$search_model = new Search_Model();
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$sums = array();
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$counts = array();
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$total_counts = array();
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$values = array();
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// foreach all search rules
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foreach (Search_Model::$rules as $rule)
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{
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// foreach variations
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foreach ($keys as $key)
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{
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if (isset($total_counts[$rule['model']]))
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$total_counts[$rule['model']]++;
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else
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$total_counts[$rule['model']] = 1;
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$result = $search_model->{$rule['method']}($key);
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foreach ($result as $row)
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{
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// test how much are texts similar
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similar_text(url::title($row->value, " "), url::title($key, " "), $percent);
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if (!isset($sums[$rule['model']][$row->id]))
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{
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$sums[$rule['model']][$row->id] = 0;
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$counts[$rule['model']][$row->id] = 0;
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$values[$rule['model']][$row->id] = $row;
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}
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$sums[$rule['model']][$row->id] += $percent;
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$counts[$rule['model']][$row->id]++;
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}
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}
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}
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$result_sums = array();
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$result_counts = array();
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// transforms to 1-dimensional array
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foreach ($sums as $model => $model_sums)
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{
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foreach ($model_sums as $id => $sum)
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{
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$result_sums[] = $sum;
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$result_counts[] = $counts[$model][$id] / $total_counts[$model];
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$this->results[] = $values[$model][$id];
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}
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}
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// sorts results
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array_multisort($result_sums, SORT_DESC, $this->results, SORT_DESC);
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}
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/**
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* Simple searching, uses method search
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*
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* @author Michal Kliment
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* @param string $keyword
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* @param integer $limit_results
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* @param integer $page_word
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* @param integer $page
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*/
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public function simple(
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$keyword = NULL, $limit_results = 20, $page_word = 'page', $page = 1)
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{
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//$profiler = new Profiler();
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// bad parameter
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if (!$keyword)
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Controller::warning(PARAMETER);
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// searching
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$this->search($keyword);
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$pagination = new Pagination(array
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(
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'base_url' => Config::get('lang') . '/search/simple/'
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. $keyword . '/' . $limit_results,
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'uri_segment' => 'page',
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'total_items' => count($this->results),
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'items_per_page' => $limit_results
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));
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$from = ($page - 1) * $limit_results;
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$to = $page * $limit_results;
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if ($to >= count($this->results))
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$to = count($this->results) - 1;
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$view = new View('main');
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$view->keyword = $keyword;
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$view->title = $keyword . ' - ' . __('Searching');
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$view->content = new View('search/simple');
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$view->content->keyword = $keyword;
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$view->content->total_items = count($this->results);
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$view->content->pagination = $pagination;
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$view->content->results = $this->results;
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$view->content->from = $from;
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$view->content->to = $to;
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$view->render(TRUE);
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//echo $profiler->render(TRUE);
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}
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/**
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* Ajax searching (for whisper)
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*
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* @author Michal Kliment
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* @param integer $count
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*/
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public function ajax($count = 100)
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{
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$this->search($this->input->get('q'));
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$counter = 0;
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// prints all results
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foreach ($this->results as $result)
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{
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$counter++;
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?>
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<a href="<?php echo url_lang::base() . $result->link . $result->id ?>" class="whisper_search_result">
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<b><?php echo $result->return_value ?></b><br />
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<i><?php echo $result->desc ?></i>
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</a>
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<?php
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if ($counter == $count)
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break;
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}
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// no results
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if (!$counter)
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{
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?>
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<div class="whisper_search_result"><?php echo __('No items found.') ?></div>
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<?php
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}
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}
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}
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