CODEWITHSUNDEEP
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garethdn
garethdn

Reputation: 12373

Sorting list using GET request

I've got a search function which is triggered by a GET request which looks something like: http://localhost:8888/TESTCI/search/get_books?i-slider=7.0&rt-slider=70&start-year=1955&end-year=2013&genre=all&language=all

That's all fine and the search function works as expected. The problem arises when I want to sort the results based on year, genre, language etc. I have a number of links on the results page which I am trying to use to sort. Given that I have no form on the page to resubmit the values my idea was to make the links equal to the current URL plus the GET parameter for sorting. An example of the year sort being:

$year_sort_class = "ui-btn-active ui-state-persist sort-desc";
$year_sort_order = "&sort-by=year-asc";

<li class="<?php echo $year_sort_class ?>"><a href="<?php echo $_SERVER['REQUEST_URI'].$year_sort_order ?>">Year</a></li>

The obvious problem that arises after I sort is that now $_SERVER['REQUEST_URI'] is equal to my original URL plus the &sort-by=year-asc. Meaning that any further sorts, whether by genre, language or year again, will be appended continuously to the URL resulting in URL that might looks something like

 http://localhost:8888/TESTCI/search/get_books?i-slider=7.0&rt-slider=70&start-year=1955&end-year=2013&genre=all&language=all&sort-by=rt-desc&sort-by=i-desc&sort-by=year-desc&sort-by=i-desc

after 4 sorts.

What is the solution to this problem? Am I missing something fundamental here and completely complicating the issue?

Upvotes: 1

Views: 1625

Answers (3)

herrjeh42
herrjeh42

Reputation: 2793

You could introduce a baseUrl variable and wrap it in a function 

function buildLink($sort = "year-asc", $foo = "default") {
  $baseUrl = "http://localhost:8888/TESTCI/search/get_books?";
  return $baseurl.$sort."&".$foo;
}

print "<a href='".buildLink("year-desc")."'>My Book</a>

Upvotes: 0

zgr024
zgr024

Reputation: 1173

Try something like this...

<?
    $href = explode('?',$_SERVER['REQUEST_URI']);
    $href = $href[0];

    $qs = array();
    foreach ($_GET as $param => $val) {
       if ($param != 'sort-by') $qs[$params] = $val;
    }
?>

<a href="<?=$href.'?'.implode('&',$qs).'&sort-by="year"?>">Year</a>

Upvotes: 1

user2189593
user2189593

Reputation:

Do a regular expression match to remove the previous sort leftover.

 preg_replace('/\&sort\-by\=([a-zA-Z0-9-_]+)/','',$_SERVER['REQUEST_URI']);

Upvotes: 0

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