Created
December 18, 2010 06:15
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This is a proof of concept app. I wanted to see if an alternative browse/search app for Google Books was possible. Built with PHP, HTML and the Google Ajax Search API (version 1).
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| <?php | |
| //Searching Google Books using the Google Ajax Search API | |
| //http://code.google.com/apis/books/docs/js/jsondevguide.html | |
| //http://code.google.com/apis/ajaxsearch/documentation/#fonje | |
| //http://code.google.com/apis/ajaxsearch/documentation/reference.html#_intro_fonje | |
| //http://www.google.com/support/forum/p/booksearch-apis/thread?tid=0870ca17f002bfe1&hl=en | |
| //assign value for title of page | |
| $pageTitle = 'Search Books: Google Ajax Search API'; | |
| $subTitle = 'MSU Libraries'; | |
| //declare filename for additional stylesheet variable - default is "none" | |
| $customCSS = 'master.css'; | |
| //create an array with filepaths for multiple page scripts - default is meta/scripts/global.js | |
| $customScript[0] = './meta/scripts/global.js'; | |
| ?> | |
| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> | |
| <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> | |
| <head> | |
| <title><?php echo($pageTitle); ?> : Montana State University Libraries</title> | |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> | |
| <link rel="alternate" type="application/rss+xml" title="MSU Libraries: Tools" href="http://feeds.feedburner.com/msulibrarySpotlightTools" /> | |
| <style type="text/css" media="screen, projection, handheld"> | |
| <!-- | |
| <?php if ($customCSS != 'none') { | |
| echo '@import url("'.dirname($_SERVER['PHP_SELF']).'/meta/styles/'.$customCSS.'");'."\n"; | |
| } | |
| ?> | |
| --> | |
| </style> | |
| <?php | |
| if ($customScript) { | |
| $counted = count($customScript); | |
| for ($i = 0; $i < $counted; $i++) { | |
| echo '<script type="text/javascript" src="'.$customScript[$i].'"></script>'."\n"; | |
| } | |
| } | |
| ?> | |
| </head> | |
| <body class="<?php if(!isset($_GET['view'])) { echo 'default'; } else { echo $_GET['view']; } ?>"> | |
| <h1><?php echo $pageTitle; ?><span>: <?php echo $subTitle; ?></span><small>(Querying Google Books)</small></h1> | |
| <div class="container"> | |
| <ul id="tabs"> | |
| <li id="tab1"><a href="./index.php">Demo App</a></li> | |
| <li id="tab2"><a href="./what.php">What is this?</a></li> | |
| <li id="tab3"><a href="./code.php">View Code</a></li> | |
| </ul><!-- end tabs unordered list --> | |
| <div class="main"> | |
| <?php | |
| //turn on full error reports for development purposes - should be turned off for production environment | |
| error_reporting(E_ALL); | |
| //set API version for Google Ajax Search API | |
| $v = isset($_GET['v']) ? $_GET['v'] : '1.0'; | |
| //set user API key for Google Ajax Search API | |
| $key = isset($_GET['key']) ? $_GET['key'] : 'INSERT API KEY HERE'; | |
| //set user IP for Google Ajax Search API | |
| $ip = isset($_GET['ip']) ? $_GET['ip'] : $_SERVER['REMOTE_ADDR']; | |
| //set default value for query to Google Ajax Search API | |
| $query = isset($_GET['q']) ? $_GET['q'] : '0307387941'; | |
| //set default value for search type to Google Ajax Search API | |
| $type = isset($_GET['type']) ? $_GET['type'] : 'all'; | |
| switch ($type) { | |
| case 'all': | |
| $index = 'books'; | |
| $q = 'q='; | |
| break; | |
| case 'isbn': | |
| $index = 'books'; | |
| $q = 'q=ISBN'; | |
| break; | |
| case 'lccn': | |
| $index = 'books'; | |
| $q = 'q=LCCN'; | |
| break; | |
| case 'oclc': | |
| $index = 'books'; | |
| $q = 'q=OCLC'; | |
| break; | |
| default: | |
| echo '<p>You must specify a search type such as "all" or "book". Check the url to make sure "type=" has a value.</p>'; | |
| exit; | |
| } | |
| if(isset($_GET['q'])): | |
| //if Google Ajax Search API has been queried using the form | |
| //check and assign page of search results - are we on the first page? | |
| $start = isset($_GET['start']) ? $_GET['start'] : 0; | |
| echo '<p class="control"><a class="refresh" href="'.basename(__FILE__).'">Try another search?</a></p>'."\n"; | |
| //set URL for the Google Ajax Search API | |
| $url = 'http://ajax.googleapis.com/ajax/services/search/'.$index.'?v='.$v.'&key='.$key.'&userip='.$ip.'&'.$q.''.urlencode($query).'&start='.$start; | |
| //$url = 'http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q='.urlencode($query).'%20site:'.$site.'&rsz=large&start='.$start; | |
| //build request and send to Google Ajax Search API | |
| $request = file_get_contents($url); | |
| //decode json object(s) out of response from Google Ajax Search API | |
| $body = json_decode($request); | |
| //create an array for search results | |
| $i = 0; | |
| $search_results = array(); | |
| //loop through all results | |
| foreach ($body->responseData->results as $item) { | |
| $search_results['results'][$i]['title'] = $item->title; | |
| $search_results['results'][$i]['url'] = $item->url; | |
| $search_results['results'][$i]['tbUrl'] = $item->tbUrl; | |
| $search_results['results'][$i]['authors'] = $item->authors; | |
| $search_results['results'][$i]['publishedYear'] = $item->publishedYear; | |
| $search_results['results'][$i]['pageCount'] = $item->pageCount; | |
| $search_results['results'][$i]['bookId'] = $item->bookId; | |
| $i++; | |
| } | |
| //loop through all the pages of results | |
| if(isset($body->responseData->cursor->pages)) { | |
| foreach($body->responseData->cursor->pages as $p) { | |
| $search_results['pages'][] = $p->start; | |
| } | |
| } | |
| //make sure some results were returned, show results as html with result numbering and pagination | |
| if(isset($search_results['results'])) { | |
| ?> | |
| <h2 class="mainHeading">Results of your Google Books "<?php echo $type; ?>" search for "<?php echo @$_GET['q']; ?>" (About <?php echo $body->responseData->cursor->estimatedResultCount; ?> matches)</h2> | |
| <ol<?php echo @$_GET['start'] > 0 ? ' start="' .($_GET['start'] + 1) .'"' : '' ?>> | |
| <?php foreach ($search_results['results'] as $sr) { ?> | |
| <li> | |
| <p><a href="<?php echo rawurldecode($sr['url']); ?>"><?php echo $sr['title']; ?></a></p> | |
| <p> | |
| <img src="<?php echo rawurldecode($sr['tbUrl']); ?>" /><br /> | |
| author: <?php echo $sr['authors']; ?><br /> | |
| published: <?php echo $sr['publishedYear']; ?><br /> | |
| page(s): <?php echo $sr['pageCount']; ?><br /> | |
| id: <?php echo $sr['bookId']; ?><br /> | |
| <a class="expand" href="<?php echo rawurldecode($sr['url']); ?>">more</a><br /> | |
| </p> | |
| </li> | |
| <?php } ?> | |
| </ol> | |
| <?php if(isset($search_results['pages'])) { ?> | |
| <ul class="pages"> | |
| <?php $i = 0; foreach($search_results['pages'] as $p) { $i++; ?> | |
| <li> | |
| <?php if((!isset($_GET['start']) && $p == 0) || (@$_GET['start'] == $p)) { ?> | |
| <strong class="active"><?php echo $i; ?></strong> | |
| <?php } else { ?> | |
| <a href="<?php echo basename(__FILE__); ?>?q=<?php echo @$_GET['q']; ?>&type=<?php echo $type; ?>&start=<?php echo $p; ?>"><?php echo $i; ?></a> | |
| <?php } ?> | |
| </li> | |
| <?php } ?> | |
| </ul> | |
| <?php } ?> | |
| <?php | |
| } | |
| else { | |
| ?> | |
| <p><strong>Sorry, there were no results</strong></p> | |
| <?php | |
| } | |
| //for testing purposes show actual request to API - REMOVE when finished | |
| //$apiRequest = $url; | |
| //echo '<p>API request: '.$apiRequest.'</p>'; | |
| ?> | |
| <?php | |
| else: //show form and allow the user to check for Google site search results and more | |
| ?> | |
| <form id="searchForm" name="searchForm" action="<?php echo basename(__FILE__); ?>" method="get"> | |
| <fieldset id="searchBox"> | |
| <label>Find:</label> | |
| <input class="text" id="q" name="q" type="text" value="keyword or id" onfocus="this.value=''; this.onfocus=null;" /> | |
| <select id="type" name="type" size="1"> | |
| <option selected value="all">All Books</option> | |
| <option value="isbn">Books by ISBN</option> | |
| <option value="lccn">Books by LCCN #</option> | |
| <option value="oclc">Books by OCLC #</option> | |
| </select> | |
| <input class="submit" id="submit" name="submit" type="submit" value="find" /> | |
| </fieldset> | |
| </form> | |
| <p><a href="http://www.lib.montana.edu/~jason/files.php">See more of Jason's code samples and site</a></p> | |
| <?php | |
| //end submit isset if statement on line 73 | |
| endif; | |
| ?> | |
| </div><!-- end div main --> | |
| </div><!-- end container div --> | |
| </body> | |
| </html> |
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