ACF Gallery & ACF Alt Text

• PClinton1337

• April 1, 2020 at 12:54 am

Hi there
Sorry in advance I’m quite new to this and although I have a rough understanding of ACF I’m struggling with this issue despite reading a lot of the threads and documentation.

I’m looking to introduce a gallery of 4 images on numerous pages whose alt text I would like to set in ACF. I already use ACF for simple text population with shortcodes inside WPBakery Theme. However, Im assuming this may need to be coded in manually, would anyone know how I would achieve this via WordPress?

Any help would be greatly appreciated, although I’m now stuck in the house for the foreseeable future ive read everything I can and don’t seem to be getting anywhere.

Thanks in advance

Paul

• John Huebner

• April 1, 2020 at 1:24 am

If you’re using shortcodes to add ACF fields to pages then your going to need to build a custom shortcode which will require adding code to the theme’s functions.php file or possibly some other file depending on your theme.

You can start here https://codex.wordpress.org/Shortcode_API

There are some tutorials and guides available like this https://www.wpbeginner.com/wp-tutorials/how-to-add-a-shortcode-in-wordpress/ and this https://www.smashingmagazine.com/2012/05/wordpress-shortcodes-complete-guide/

This is the basic shortcode code in ACF for a reference.

/*
*  acf_shortcode()
*
*  This function is used to add basic shortcode support for the ACF plugin
*  eg. [acf field="heading" post_id="123" format_value="1"]
*
*  @type  function
*  @since  1.1.1
*  @date  29/01/13
*
*  @param  $field (string) the field name or key
*  @param  $post_id (mixed) the post_id of which the value is saved against
*  @param  $format_value (boolean) whether or not to format the field value
*  @return  (string)
*/

function acf_shortcode( $atts ) {
  
  // extract attributs
  extract( shortcode_atts( array(
    'field'      => '',
    'post_id'    => false,
    'format_value'  => true
  ), $atts ) );
  
  
  // get value and return it
  $value = get_field( $field, $post_id, $format_value );
  
  
  // array
  if( is_array($value) ) {
    
    $value = @implode( ', ', $value );
    
  }
  
  
  // return
  return $value;
  
}

add_shortcode('acf', 'acf_shortcode');

• PClinton1337

• April 1, 2020 at 2:06 am

Hi John,

Thanks for your response. I do use one or two shortcodes already within our theme and know how to edit the functions file however this is where knowledge ends and unsure on how to create a gallery referencing the alt tags using a shortcode.

Kindest regards

Paul

• John Huebner

• April 2, 2020 at 11:05 pm

Not sure what you’re looking for. You would get values in the shortcode the same way you’d get them in when adding code to a theme like is discussed on the gallery field page https://www.advancedcustomfields.com/resources/gallery/

The main difference is that you need to supply the post id of the post as is done by the built in ACF shortcode.