Filtering multiple tags

Kirby 2 Solved ✅
22

I’m not quite sure what exactly you want to achieve. The following controller will work if you want to filter only by one type of parameter at a time:

<?php

	return function($site, $pages, $page) {

	    $projects = page('projects')
	                        ->children()
	                        ->visible();
	                 

		
		if($color = param('color')) {
			$projects =  page('some-page')
		                        ->children()
		                        ->visible()
		                       ->filterBy('colors', $color, ',');

		}
		if($client = param('client')) {
			$projects =  page('some-page')
		                        ->children()
		                        ->visible()
		                       ->filterBy('clients', $client, ',');

		}
		if($service = param('service')) {
			$projects =  page('some-page')
		                        ->children()
		                        ->visible()
		                       ->filterBy('services', $service, ',');
		}                       
		 
		  return compact('projects');

	};

This piece if code assumes that you have 3 type of tag fields in your blueprints:

  • colors
  • services
  • clients

And you want to filter either by color OR by client OR by service.

That is, if you enter a URL like this:

http://yourdomain.com/some-page/color:green

you get a list of children with color green.

But chaining parameters will not work with this code.

1 Like
23

Yes, I understand how that works. Thank you. However, I’m having trouble piecing together something similar for the following example:

<?php if(param('tag')): // show projectname results ?>
    <?php $tag = urldecode(param('tag'));
          $articles = $pages->find('home')
                            ->children()
                            ->visible()
                            ->filterBy('tags', $tag, ',');

          echo '<h1 class="title">' , $tag , '</h1>';?>

Of course I have the code : <?php else: // show latest articles ?> later

This works for one type of parameter. I want to extend this to work with multiple filters. How can I achieve the same result if I click on the “color” tag, the “client” tag, or “service” tag - individually?

24

Hm, I’m not quite sure where the problem is and how I could best help to solve it. You code above does not really make sense.

What I posted above is the code for a controller which return the $projects variable, that you can then use to iterate through the projects in your template.

25

@texnixe that’s right, I understand the controller. How you layer in tags under one request is what I’m trying to learn and extend. For example, with Baseblog (re: http://baseblog.sashtown.de/demo/) clicking on a tag ($tag) will bring you to a page showing the title of the active $tag. I want to do something similar using multiple custom tag fields. So, whether I click on client, service, projects, color …etc, I will see the title on the page change to Client, Service, Projects, etc. depending on which tag was selected.

The following code is from Baseblog’s ‘blog’ template:

<?php if(param('tag')): // show tag results ?>
    <?php $tag = urldecode(param('tag'));
          $articles = $pages->find('blog')
                            ->children()
                            ->visible()
                            ->filterBy('tags', $tag, ',')
                            ->flip()
                            ->paginate(10);

          echo '<h1 class="result">Articles tagged with “<mark>' , $tag , '</mark>”</h1>';
    ?>

Is there a way I can extend the above code to include more than one tag?
Thank you!
Shannon

For a working example of how I’d like to use the above example see: http://ssssssss.info/mmp/

26

I see. You could simply use a new variable in your controller. In each if-statement, add something like:


$title = $tag;

and in the others then set $title to color, service etc, and return the variable.

Then you can echo that variable as headline in your template.

27

I tried something different and included the following code in the controller for each if statement:
echo '<h1 class="result"> Articles tagged with “<mark>' , $tag , '</mark>”</h1>';
replacing $tag with color, service, etc.

This will display the title of the active tag but in markup it sits above my ‘head’ elements in the body. Yucky.

Screen Shot 2016-02-13 at 11.28.47 PM.png450×512 76.1 KB

I understand why this is happening and yet I don’t know how to approach your, @texnixe, solution in my template. This is challenging!

Thanks,
Shannon

28

As I wrote above, save the tag in a variable that you return in your controller:

<?php
if(param('tag')) {
  $tag = urldecode(param('tag'));
          $articles = $pages->find('home')
                            ->children()
                            ->visible()
                            ->filterBy('tags', $tag, ',')

  $title = $tag;
}
if(param('color') {
  $color = urldecode(param('color'));
          $articles = $pages->find('home')
                            ->children()
                            ->visible()
                            ->filterBy('colors', $color, ',')

  $title = $color;
}
...
else {
  //show all articles
}

    return compact('articles', 'title'); 
    ?>

Then in your template:

<h1 class="title">Articles tagged with <mark><?php echo  $title ?></mark></h1>

You should not put any html into your controller, it’s just for the logic and should return something, not echo anything.

29

As aways, thank you for your patience and assistance @texnixe.

30

If you want get something only with tags “tag1” and “tag2”, like a yoururl.com/page/tag:tag1,tag2 you’re can use this code, (change $products whatever you want) :

if(param('tag')){
    $tags = explode(",", param('tag'));
    $products = $products->filter(function($product) use ($tags) {
      $inTags = true;
      foreach ($tags as $tag) {
        $pTags = explode(",", $product->tags()); //get tags field from page
        if(!in_array($tag,$pTags)){
          $inTags = false;
        }
      }
      return $inTags;
    });
  }
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