ACF Extended is bundled with an advanced version of the acf/validate_save_post hook. It allows developers to hook in any Post, User, Term and Options Pages validation process, on the back-end and front-end.
It is possible to hook on all object validation (Post, User, Term and Options Pages) using the global acfe/validate_save. Usage example:
/*
* ACFE Validate Save
*
* @string $post_id 12 | term_46 | user_22 | my-options | comment_89
* @object/array $object The corresponding WP Object (Post, Term, User, Options Page or Comment)
*/
action('acfe/validate_save', $post_id, $object);
action('acfe/validate_save/id=12', $post_id, $object);
action('acfe/validate_save/id=term_46', $post_id, $object);
action('acfe/validate_save/id=user_22', $post_id, $object);
action('acfe/validate_save/id=my-options', $post_id, $object);
action('acfe/validate_save/id=comment_89', $post_id, $object);add_action('acfe/validate_save', 'my_acfe_validate_save', 10, 2);
function my_acfe_validate_save($post_id, $object){
// Retrieve the user input from "my_field" field
get_field('my_field');
// Retrieve "my_field" field value from DB
get_field('my_field', $post_id);
// Loop thru the user input from "my_repeater" field
if(have_rows('my_repeater')):
while(have_rows('my_repeater')): the_row();
get_sub_field('my_sub_field');
endwhile;
endif;
// Add a custom validation error
acfe_add_validation_error('my_field', 'This is a custom error');
}It is possible to target specifically post validation using the following syntax: acfe/validate_save_post. This new hook also comes with a variation to target one specific post type. Usage example:
/*
* ACFE Validate Save Post
*
* @string $post_id The Post ID
* @object $object The WP Post Object
*/
action('acfe/validate_save_post', $post_id, $object);
action('acfe/validate_save_post/id=12', $post_id, $object);
action('acfe/validate_save_post/post_type=page', $post_id, $object);add_action('acfe/validate_save_post/post_type=page', 'my_acfe_validate_save_page', 10, 2);
function my_acfe_validate_save_page($post_id, $object){
// Retrieve the user input from "my_field" field
get_field('my_field');
// Retrieve "my_field" field value from DB
get_field('my_field', $post_id);
// Loop thru the user input from "my_repeater" field
if(have_rows('my_repeater')):
while(have_rows('my_repeater')): the_row();
get_sub_field('my_sub_field');
endwhile;
endif;
// Add a custom validation error
acfe_add_validation_error('my_field', 'This is a custom error');
}It is possible to target specifically term saves using the following syntax: acfe/validate_save_term. This new hook also comes with a variation to target one specific taxonomy. Usage example:
/*
* ACFE Validate Save Term
*
* @string $post_id The ACF Term ID
* @object $object The WP Term Object
*/
action('acfe/validate_save_term', $post_id, $object);
action('acfe/validate_save_term/id=term_46', $post_id, $object);
action('acfe/validate_save_term/taxonomy=category', $post_id, $object);add_action('acfe/validate_save_term/taxonomy=category', 'my_acfe_validate_save_category', 10, 2);
function my_acfe_validate_save_category($post_id, $object){
// Retrieve the user input from "my_field" field
get_field('my_field');
// Retrieve "my_field" field value from DB
get_field('my_field', $post_id);
// Loop thru the user input from "my_repeater" field
if(have_rows('my_repeater')):
while(have_rows('my_repeater')): the_row();
get_sub_field('my_sub_field');
endwhile;
endif;
// Add a custom validation error
acfe_add_validation_error('my_field', 'This is a custom error');
}It is possible to target specifically user saves using the following syntax: acfe/validate_save_user. This new hook also comes with a variation to target one specific role. Usage example:
/*
* ACFE Validate Save User
*
* @string $post_id The ACF User ID
* @object $object The WP Term Object
*/
action('acfe/validate_save_user', $post_id, $object);
action('acfe/validate_save_user/id=user_22', $post_id, $object);
action('acfe/validate_save_user/role=editor', $post_id, $object);add_action('acfe/validate_save_user/role=editor', 'my_acfe_validate_save_editor', 10, 2);
function my_acfe_validate_save_editor($post_id, $object){
// Retrieve the user input from "my_field" field
get_field('my_field');
// Retrieve "my_field" field value from DB
get_field('my_field', $post_id);
// Loop thru the user input from "my_repeater" field
if(have_rows('my_repeater')):
while(have_rows('my_repeater')): the_row();
get_sub_field('my_sub_field');
endwhile;
endif;
// Add a custom validation error
acfe_add_validation_error('my_field', 'This is a custom error');
}It is possible to target specifically options pages saves using the following syntax: acfe/validate_save_option. This new hook also comes with a variation to target one specific options page slug. Usage example:
/*
* ACFE Save Options Page
*
* @string $post_id The ACF Options Page Post ID
* @array $object The ACF Options Page Settings array
*/
action('acfe/validate_save_option', $post_id, $object);
action('acfe/validate_save_option/id=my-options', $post_id, $object);
action('acfe/validate_save_option/slug=my-options-page', $post_id, $object);add_action('acfe/validate_save_option/slug=my-options-page', 'my_acfe_validate_save_options_page', 10, 2);
function my_acfe_validate_save_options_page($post_id, $object){
// Retrieve the user input from "my_field" field
get_field('my_field');
// Retrieve "my_field" field value from DB
get_field('my_field', $post_id);
// Loop thru the user input from "my_repeater" field
if(have_rows('my_repeater')):
while(have_rows('my_repeater')): the_row();
get_sub_field('my_sub_field');
endwhile;
endif;
// Add a custom validation error
acfe_add_validation_error('my_field', 'This is a custom error');
}It is possible to target specifically comments saves using the following syntax: acfe/validate_save_comment. Usage example:
/*
* ACFE Validate Save Comment
*
* @string $post_id The ACF Comment ID
* @object $object The WP Comment Object
*/
action('acfe/validate_save_comment', $post_id, $object);
action('acfe/validate_save_comment/id=comment_89', $post_id, $object);add_action('acfe/validate_save_comment/id=comment_89', 'my_acfe_validate_save_comment', 10, 2);
function my_acfe_validate_save_comment($post_id, $object){
// Retrieve the user input from "my_field" field
get_field('my_field');
// Retrieve "my_field" field value from DB
get_field('my_field', $post_id);
// Loop thru the user input from "my_repeater" field
if(have_rows('my_repeater')):
while(have_rows('my_repeater')): the_row();
get_sub_field('my_sub_field');
endwhile;
endif;
// Add a custom validation error
acfe_add_validation_error('my_field', 'This is a custom error');
}