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I kept thinking about my previous ajax filter projects and I was messing around with this over the weekend. If You are developing a WordPress website for a real estate company, this article might be useful. You can filter apartments and houses by 3 criteria: location, type and status.

I created an ajax filter component for a fictional real estate company. If You are a kind of developer like me, who like to avoid the plugin bloat, just implement it directly in your WordPress theme.

This is a developer level, so please buy membership only if you have a basic understand with WordPress template hierarchy, PHP, JavaScript, and Sass. Never experiment on a live website! I recommend to use LocalWP by Flywheel, that makes your work a lot easier.

Step #1 – The file structure should be look like this

Create the following empty files and folders in your theme:

your-theme/components/ajax/inc/ajax-callback.php
your-theme/components/ajax/inc/ajax-filter.php
your-theme/components/ajax/inc/post-types.php
your-theme/components/ajax/js/script.js
your-theme/components/ajax/real-estate.php
your-theme/front-page.php
your-theme/template-parts/content-filter.php
your-theme/template-parts/content-apartments.php

Step #2 – Define some constants in functions.php

This code will activate the ajax component.

functions.php

Step #3 – Enqueue Scripts

Create this file in the ajax folder:

real-estate.php

Step #4 – Create a Custom Post Type for Apartments

We are going to create two taxonomies for this post type

• Type: Apartment / House
• Status: For Sale / For Rent

post-types.php

Step #5 – Create the Custom Fields for Apartments Post Type

In this case I'm going to use the Advanced Custom Field plugin. Create these fields on your own, or You can download it as an importable template.

Step #6 – We have got the Apartment post type with the previously created custom fields

Just fill the posts with your own data, or download my content below.

In this project we are going to create an Ajax filter from WordPress Custom Post Type, that displays images with fancy hover effects. You can filter posts without refreshing the page. I didn't use either a page builder or a plugin to create this feature.

Step #1 - Create a Custom Post Type for Cities

In this example I'm going to create a Custom Post Type named City, but it could be anything You want. Please care about the taxonomy's slug in this case "city_cat". You need to change it to Your custom slug.

Add this snippet to functions.php

your-child-theme/functions.php

Step #2 - Create some Taxonomies for City Custom Post Type

Step #3 - Add some posts in City

You can download the XML file from the demo to import.

Step #4 - Enqueue scripts in functions.php

Step #5 - Build the filter

Create a file named filter.php

your-child-theme/ajax/filter.php

Find and replace the taxonomy and post type:

#6  'taxonomy' => 'YOUR_TAXONOMY' 
#28 'post_type' => 'YOUR_POST_TYPE',

In this tutorial I'm going to show You how to create a dropdown filter with AJAX for WordPress Categories.

Step #1 - Filter posts by category

Create a file named dropdown-filter.php

/your-child-theme/ajax-dropdown/dropdown-filter.php

If You want to filter by default WordPress Posts by Categories, the following lines must be look like this

#3  'taxonomy' => 'category'
#20 'post_type' => 'post',

Step #2 - Create a shortcode and place it wherever You want

Just copy this code in the functions.php

In this tutorial I'm going to show You how to create a dropdown filter with AJAX for WordPress Categories.

Step #1 - Filter by taxonomy terms

Create a file named dropdown-filter.php

/your-child-theme/ajax-dropdown/dropdown-filter.php

Search and replace "YOUR_TAXONOMY" and "YOUR_POST_TYPE" in following the code!

#3  'taxonomy' => 'YOUR_TAXONOMY' 
#20 'post_type' => 'YOUR_POST_TYPE', 

Step #2 - Create a shortcode and place it wherever You want

Just copy this code in the functions.php

In this tutorial I’m going to show You how to create multiple dropdown filter with AJAX for WordPress Taxonomies. AJAX allows to update parts of the website, without reloading the whole page. Web pages going to be updated asynchronously by exchanging data with a web server behind the scenes.

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Step #1 – Filter by taxonomy terms

Create a folder named ajax in your child theme.
Create a file named dropdown-filter.php in the ajax folder.

Step #2 – Create a shortcode and place it wherever You want

Just copy this code in the functions.php

Step #1 - Create a Custom Post Type for FAQ

In this example I'm going to create a Custom Post Type named FAQ, but it could be anything You want. Please care about the taxonomy's slug in this case "faq_cat". You need to change it to Your custom slug.

Copy this code in functions.php

Step #2 - Create some taxonomies for FAQ Custom Post Type

Step #3 - Create some posts in FAQ

You can download the XML file from the demo to import.

Step #4 - Enqueue scripts in functions.php

Step #5 - Build the filter

Create a file named filter.php

your-child-theme/ajax/filter.php

Find and replace the taxonomy and post type:

#6  'taxonomy' => 'YOUR_TAXONOMY' 
#27 'post_type' => 'YOUR_POST_TYPE',

Step #1 - Enqueue scripts in functions.php