OK, I’m going a bit mad on this one. This is the scenario:
+Repeater -> r1
+Group -> g1
+TextField -> t1
I have created an action to change t1 when a the form is saved. This is the code:
function my_check_for_change($value, $post_id, $field) {
// Check for repeater row
if( have_rows('r1') ): ?>
<?php while( have_rows('r1')) : the_row() ?>
<?php
update_sub_field( array('r1', 1, 'g1', 1, 't1'), 'cow' );
update_sub_field( 't1', 1, 'cow');
update_sub_field( 'g1_t1', 1, 'cow');
update_sub_field( 'r1_g1_t1', 1, 'cow');
}
?>
<?php endwhile; ?>
<?php endif;
}
No matter the different combinations of update_sub_field, the field is NOT updated at all. Any help is greatly appreciated.
I noticed an extra closing curly bracket. Not sure if that is it.
I think your group field is like a repeater. I haven’t work with this field type, so I’d be guessing. I think you have to put if/while for your group inside your first repeater.
The documentation is here:
Group
In other words, the group is nested in the repeater.
I think the code should look something like this:
function my_check_for_change($value, $post_id, $field) {
if( have_rows('r1') ):
while( have_rows('r1')) : the_row()
if( have_rows('g1') ):
while( have_rows('g1')) : the_row()
update_sub_field( array('r1', 1, 'g1', 1, 't1'), 'cow' );
update_sub_field( 't1', 1, 'cow');
update_sub_field( 'g1_t1', 1, 'cow');
update_sub_field( 'r1_g1_t1', 1, 'cow');
endwhile;
endif;
endwhile;
endif;
}
Thanks bosoxbill, will give it a shot and report back!
To answer my question and assuming you are changing the first row, you need to simply use update_field:
update_field(r1_0_g1_t1, ‘cow’, get_the_ID());
It was this answer that finally answered my question on how to save to fields within a Group field – basically, using an underscore reference method.
I didn’t see that at all in the documentation, which seems more geared toward saving fields within a repeater.
Also, ACF’s Edit Field Group constructor “Underscores and dashes allowed”. Given that this method depends on underscore separation, is the tip correct?
Albeit, when I do…
update_field('categories_sector', 'My Value', $org_id_prefixed);
… I am now getting the following …
Warning: Invalid argument supplied for foreach() in /home/myfolder/public_html/wp-content/plugins/advanced-custom-fields-pro/includes/fields/class-acf-field-checkbox.php on line 490
But only when “Save Custom” for the Checkbox named “Sector” is switched ON.
