search.php

<?php
set_time_limit(60);
/*
  DON'T PUT JAVASCRIPT IN HERE
  DON'T PUT JAVASCRIPT IN HERE
  DON'T PUT JAVASCRIPT IN HERE
  DON'T PUT JAVASCRIPT IN HERE
  DON'T PUT JAVASCRIPT IN HERE
  DON'T PUT JAVASCRIPT IN HERE
  DON'T PUT JAVASCRIPT IN HERE
  DON'T PUT JAVASCRIPT IN HERE
  DON'T PUT JAVASCRIPT IN HERE
 */
require_once 'scrapers/monster/MonsterScraper.php';
require_once 'scrapers/dice/DiceScraper.php';
require_once 'database/db_util.php';
require_once 'trending.php';
require_once 'views.php';

//Reserved Characters to ignore for one-length string trending terms
$RESERVED = ".,?/~`!@#$%^&*()-_=+\\| {}[]";

//Array for holding keyword tokens from description input
$KEYWORDS = array();

//Variable for the company to be filtered
$companyFilter = '';

if (isset($_GET["location"]) && isset($_GET["description"])) {
    $monster_scraper = new MonsterScraper();
    $dice_scraper = new DiceScraper();
    // $db_conn = get_job_lube_db_conn();
    $JOBS = array();

    //Format search terms for relevance-search keywords
    $input = str_replace(',', ' ', $_GET["description"]);

    //Get keyword tokens from description input
    $KEYWORDS = explode(" ", $input);
    //Log each term
    foreach ($KEYWORDS as $keyword) {
        $keyword = trim($keyword);
        if (strlen($keyword) == 0)
            continue;
        else if (strstr($RESERVED, $keyword) === FALSE)
            log_search_term($keyword);
    }
    /*if(!is_null($results = $monster_scraper->scrape_monster($_GET["location"], $_GET["description"]))) {
        $JOBS += $results;
    }*/
    
    $JOBS = mergeDupes($monster_scraper->scrape_monster($_GET["location"], $_GET["description"], $_GET["radius"]),$dice_scraper->scrape_dice($_GET["location"], $_GET["description"], $_GET["radius"]));
    

    if (isset($_GET["filter-by-company"])) {
        $companyFilter = $_GET["filter-by-company"];
    }

    if (isset($_GET["sort-by"])) {
        switch ($_GET["sort-by"]) {
            case 'date':
                // Run function to sort the data by date and re-set the variable 
                // sort by date
                usort($JOBS, "compareDates");
                break;
            case 'relevance':
                // Run function to sort the data by relevance and re-set the variable
                // sort by relevance
                usort($JOBS, "compareRelevancy");
                break;
        }
    }
    
    echo '<table class="table table-striped">
            <thead>
              <tr>
                <th>Description</th>
                <th>Views</th>
                <th>Location</th>
                <th>Company</th>
                <th>Date</th>
                <th>Twitter</th>
              </tr>
            </thead>
            <tbody>';
    $COMPANIES = explode(",", $companyFilter);
    foreach ($JOBS as $job) {
        $flag = false;
        foreach ($COMPANIES as $company) {
            $company = trim($company);
            if (isSubstring($job->getCompany(), $company) !== false) {
                //reason for comparing the above statement with !==false is b/c 
                //in the strpos(mainString, subString), if subString starts with
                //the first character, strpos will return 0 (which will return false)
                $flag = true;
                break;
            }
        }
        //if the companyFilter is empty or if the job contains the companyFilter, then show the job
        if ($flag == true) {
            echo "<tr>
					<td><a class='post_link' href='" . $job->getUrl() . "' target ='_blank'>" . $job->getDescription() . "</a></td>
					<td>" . get_views($job->getUrl()) . "</td>
					<td>" . $job->getLocation() . "</td>
					<td>" . $job->getCompany() . "</td>
					<td>" . $job->getDate() . "</td>
					<td><iframe allowtransparency=\"true\" frameborder=\"0\" scrolling=\"no\" src=\"https://platform.twitter.com/widgets/tweet_button.html?text=" . htmlspecialchars("I found this job: " . $job->getDescription() . " " . $job->getUrl() ) ."&hashtags=JobLube&count=none\" style=\"width:130px; height:20px;\"></iframe></td>
				</tr>";
        }
    }
    echo '</tbody> 
        </table>
        </div>';
}

/* function to see if the second string is part of the first string 
  same as strpos except if the second string is empty then this
  function returns true */

function isSubstring($mainString, $subString) {
    GLOBAL $RESERVED;
    if ($subString == '' or $subString == null) {
        return true;
    } else if (strpos($RESERVED, $subString) !== false) {
        return true;
    } else {
        //convert both strings to lower case
        $mainString = strtolower($mainString);
        $subString = strtolower($subString);
        return strpos($mainString, $subString);
    }
}

function mergeDupes($monster_jobs, $dice_jobs) {
    if ($monster_jobs == null) {
        return $dice_jobs;
    } else if ($dice_jobs == null) {
        return $monster_jobs;
    }
    $jobs = array();
    $jobs += $monster_jobs;
    foreach ($dice_jobs as $dice_job) {
        for ($i = 0; $i < count($monster_jobs); $i++) {
            if (($monster_jobs[$i]->compareListing($dice_job))) {
                break;
            }
            $jobs[] = $dice_job;
            break;
        }
    }
    return $jobs;
}

function compareDates($jobA, $jobB) {
    return ($jobA->getDate()) - ($jobB->getDate());
}

function compareRelevancy   ($a, $b) {
                            GLOBAL $KEYWORDS;
                            $aDescription = $a->getDescription();
                            $bDescription = $b->getDescription();
                            $aNum = 0;
                            
                            $bNum = 0;
                            foreach ($KEYWORDS as $k) {
                                if ($k == "")
                                    continue;
                                if (strpos($aDescription, $k) === false)
                                    ;
                                else
                                    $aNum++;
                                if (strpos($bDescription, $k) === false)
                                    ;
                                else
                                    $bNum++;
                            }
                            return ($aNum < $bNum) ? 1 : -1;
                        }

?>