ACF Custom Field Type

• Shine99

• December 20, 2018 at 8:56 pm

I have created a custom field type using elliots CFT template: –

https://github.com/AdvancedCustomFields/acf-field-type-template

Now I’d like to extend my CFT by letting my CFT render two input fields and save the two fields in an array.

However when I try this my CFT only lets me store one value but if I converted all my inputs to store arrays it simply wipes the other when saved so only one array can be saved.

Am I missing something ?

• John Huebner

• December 21, 2018 at 12:37 am

What does your render field method look like?
Given the example in the field type template it should probably look something like

?>
  <input type="text" name="<?php echo esc_attr($field['name']) ?>[field1]" value="<?php echo esc_attr($field['value']['field1']) ?>" style="font-size:<?php echo $field['font_size'] ?>px;" />
  <input type="text" name="<?php echo esc_attr($field['name']) ?>[field2]" value="<?php echo esc_attr($field['value']['field2']) ?>" style="font-size:<?php echo $field['font_size'] ?>px;" />
<?php

You should notice that I turned the value into a nested array and I’m also echoing out each of the values of this array independently.
I’m not 100% sure that this is all you’d need to do. You may need to also do some work on the save_field and load_field methods and you’ll certainly want to do some work on the format_value method.

• Shine99

• December 21, 2018 at 1:04 am

Stripped back it looks like this :-

<input type="text" name="<?php echo esc_attr($field['name']) ?>image" id="image_url"
                       class="regular-text"
                       value="<?php echo esc_attr($field['value']['image']) ?>">

echo '<input type="text" id="pin_json"  name="' . esc_attr($field['name']) . 'json' . '"  value="' . esc_attr($field['value']['json']) . '"  /> ';

Also modified the value to store an array that looks like this.

   [value] => Array
        (
            [image] => 
            [json] => 
        )

But it still wont save my values 🙁 !

• John Huebner

• December 21, 2018 at 1:15 am

Your additions to the field names need to have brackets around them

  <input type="text" name="<?php echo esc_attr($field['name']) ?>[image]" id="image_url"
                       class="regular-text"
                       value="<?php echo esc_attr($field['value']['image']) ?>">

echo '<input type="text" id="pin_json"  name="' . esc_attr($field['name']) . '[json]' . '"  value="' . esc_attr($field['value']['json']) . '"  /> ';

I’m not sure what the results of not having them would be, more than likely your field name in the form looks something like FIELDNAMEimage which is a completely different name than you expect it to be.

• Shine99

• December 21, 2018 at 1:36 am

Hi John,

Thanks for this managed to get everything sorted and is now saving all values!

Thanks for all your help!