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Highlight search query in results page?


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25 Posts   7833 Views

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SilverRay

Community Member, 167 Posts

13 June 2009 at 4:54pm

Hi,

OK, I have the usual search form (as per Ingo's book ;) ), like so:

   function results($data, $form) {
      $results = $form->getResults(null, $data);      
      $searchQueryTitle = $form->getSearchQuery($data);

      $templateData = array(
         'Results' => $results,
         'SearchQueryTitle' => $searchQueryTitle,
         'Title' => 'Search Results'
      );
      return $this->customise($templateData)->renderWith(
         array('Page_results', 'Page')
      );
   }

Now, I would like to highlight the search term in the results by inserting some css class with a function like str_ireplace or similar. Anybody having experience with this, or can give some hints on how to proceed?

Thanks!

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SilverRay

Community Member, 167 Posts

15 June 2009 at 10:17pm

OK, I got a little bit further, but not quite. I added the following:

   function results($data, $form) {
      $results = $form->getResults(null, $data);      
      $searchQueryTitle = $form->getSearchQuery($data);

      $newSet = new DataObjectSet();
      foreach($results as $result) {
         $result = str_ireplace("$searchQueryTitle", "<span class=\"highlight\">$searchQueryTitle</span>", $result->Content);
         $newSet->push($result);
      }
            
      $templateData = array(
         'Results' => $newSet,
         'SearchQueryTitle' => $searchQueryTitle,
         'Title' => 'Search Results'
      );
      return $this->customise($templateData)->renderWith(
         array('Page_results', 'Page')
      );
   }

This gives me a blank page. When I change 'Results' => $newSet to 'Results' => $results again, of course it works in the old way (without highlighting). What is the magic that I'm missing? Thanks!

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SilverRay

Community Member, 167 Posts

16 June 2009 at 11:07pm

Nobody? Please? ;)

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Juanitou

Community Member, 323 Posts

16 July 2009 at 7:48am

Edited: 16/07/2009 8:22am

Hi!

You could get some inspiration by looking at the ContextSummary function in sapphire/core/model/fieldtypes/Text.php

By the way, if you find a custom solution for this or a method overloading ContextSummary I'll be happy to know about it (since I don't know how to do it myself).

Regards,
Juan

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SilverRay

Community Member, 167 Posts

16 July 2009 at 1:17pm

Well, yeah, that file I have perused already, initially. I didn't have much time to pursue the whole thing, of course I will post code when I solve it (or perhaps someone will beat me to it ;) )

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Juanitou

Community Member, 323 Posts

22 July 2009 at 9:25pm

Edited: 22/07/2009 9:26pm

Hi!

As I'm not good at PHP, I copied ContextSummary and added some improvements (?), since I had problems with encoded chars, stripped <br /> sticking words and results coming from blog entries including BBCode.

In Page class:

function MyContextSummary($characters = 500, $string = false, $striphtml = true, $highlight = true) {
      
   if(!$string) $string = $_REQUEST['Search'];   // Use the default "Search" request variable (from SearchForm)
   
   /*** Prepare Content ***/
   // Replace <br /> in order to get separate words
   $content = str_replace('<br />', ' ', $this->Content);
   // Decoding entities prevents XML validation error
   $content = html_entity_decode($content, ENT_COMPAT , 'UTF-8');
   // Remove HTML tags so we don't have to deal with matching tags
   $text = strip_tags($content);
   // Remove BBCode
   $pattern = '|[[\/\!]*?[^\[\]]*?]|si';
   $replace = '';
   $text = preg_replace($pattern, $replace, $text);
   
   // Find the search string
   $position = (int) stripos($text, $string);
   
   // We want to search string to be in the middle of our block to give it some context
   $position = max(0, $position - ($characters / 2));

   if($position > 0) {
      // We don't want to start mid-word
      $position = max((int) strrpos(substr($text, 0, $position), ' '), (int) strrpos(substr($text, 0, $position), "\n"));
   }
   
   $summary = substr($text, $position, $characters);
   $stringPieces = explode(' ', $string);
      if($highlight) {
      // Add a span around all key words from the search term as well
      if($stringPieces) foreach($stringPieces as $stringPiece) {
         $summary = str_ireplace($stringPiece, "<span class=\"highlight\">$stringPiece</span>", $summary);
      }
   }

   return trim($summary);
}   

In Page_results.ss:

…
<% if Content %>
   <p>&hellip;$MyContextSummary(375)&hellip;</p>
<% else %>
…

For what is worth,
Juan

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SilverRay

Community Member, 167 Posts

23 July 2009 at 5:11pm

OK, so that works for you? When I find the time, I will look into it as well (using your example).

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Juanitou

Community Member, 323 Posts

23 July 2009 at 8:06pm

If it didn't worked I wouldn't have posted it…

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