Hierarchical filter

This topic has 3 replies, 2 voices, and was last updated 3 years, 8 months ago by Long Nguyen.

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April 20, 2021 at 1:33 PM #27413

James
Participant

Hi, Metabox.

I am building a restaurant menu and I want to filter it in the front-end. Do you have any tutorials where I can add a hierarchical filter? For example, I want to click the button "dinner menu" it will show "category" then when I click the category item it will show the list of menu items. I would like to use the views in Metabox.

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April 20, 2021 at 4:03 PM #27422

Long Nguyen
Moderator

Hi,

You can follow this article to know how to filter posts by taxonomy https://metabox.io/filter-posts-custom-fields-custom-taxonomies-archive-pages/

Or use the plugin FacetWP to create a filter quickly https://facetwp.com/. We also have a plugin that integrates Meta Box and FacetWP https://metabox.io/plugins/meta-box-facetwp-integrator/.

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April 20, 2021 at 4:41 PM #27423

James
Participant

Hi, I got an error.

Warning: Use of undefined constant ‘justread_filter_archive’ - assumed '‘justread_filter_archive’' (this will throw an Error in a future version of PHP) in /home/kirbkobs/main.mywebsite.com/wp-content/themes/Thedemozone/functions.php on line 52

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April 20, 2021 at 10:54 PM #27435

Long Nguyen
Moderator

Hi,

Please change code of the action hook

add_action( 'pre_get_posts', ‘justread_filter_archive’);

to this

add_action( 'pre_get_posts', 'justread_filter_archive' );

the issue on the single quote character ‘ '

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