How to create a query that return custom post type by Advanced Custom Field(ACF) Taxonony?

Question

you all!

I have categories of Author

• 1 - Freelancer
• 2 - Contract
• 3 - Half-time

I have categories of Books

• 1 - Novel
• 2 - Fiction

I have a custom post type Author. Author has custom fields:

• Name: Text
• Type: Category

I have a custom post type Book. Book has custom fields:

• Title: Text
• Author: Taxonomy
• Type: Category
• Pages: Number

I need a query that return ALL BOOKs with Authors that have Contract ID = 1

And

I need a query that return ALL BOOKs with Type = Fiction

Thanks!!!

Answer 1

You should use meta_query to get the desired results:

I need a query that return ALL BOOKs with Authors that have Contract ID = 1

$freelance_books = get_posts(array(
    'numberposts'   => -1,
    'post_type'     => 'books',
    'meta_key'      => 'book_contract', // Adjust here with your field name
    'meta_value'    => 1
));

I need a query that return ALL BOOKs with Type = Fiction

$fiction_books = get_posts(array(
    'numberposts'   => -1,
    'post_type'     => 'books',
    'meta_key'      => 'book_type', // Adjust here with your field name
    'meta_value'    => 2
));