Reply To: Issue on creating a new multiple select field type

• game-ryo

• December 28, 2020 at 10:31 pm

Thank you for your reply, tgillet1. I had forgotten this post until I received a notification email. In fact, I already solved this issue myself and realized I misunderstood about the field.

As you said, the field box with a number-field-like appearance was just a multi-select field with size=”1″. I jumped to the wrong conclusion.

By the way, I’d like to write down my findings here for future reference.

[1] Of the above code, $field[‘ajax’] = 1 was not necessary. On the contrary, it causes blank field when used with $field[‘ui’] = 1 (unless ajax actions are properly set).

[2] Even when $field[‘ui’] is set to 1, the appearance of the field still not be ‘Stylized UI’. For example, here is the code and rendered field images.

function render_field( $field ) {
  $field['type'] = 'select';
  $field['ui'] = 1; // or 0
  $field['multiple'] = 1; // or 0
  $field['choices'] = array(
    101 => 'Choice-1',
    102 => 'Choice-2',
    103 => 'Choice-3',
  );
  acf_render_field( $field );
}

Since I couldn’t solve this problem, I took an alternative approach.

[3] Referring to other ACF plugins, I solved the issue by using the prepare_field function instead of the render_field function. Here is the URL of the plugin I created.
https://github.com/game-ryo/ACF-Multiple-Taxonomy-Field

comparison.j....jpg