Reply To: How do I get optgroups in the Select field?

• alfonsosiloniz

• October 2, 2013 at 4:02 pm

Hi. Sorry for getting this up. But I have found in the same situation where I need 2 levels for Select field.

In my case, I wanted to use the interface to do that, so I have made a change in my ACF select field code to permit that. If the line in the interface starts with – (for instance -Europe ) it will assume there are optgroups, so everything that comes after that line will be for that group until next – is found.

In my case, in the interface I write:

-Europe
Spain
France
-America
Argentina
Peru

and then I get a select with optgroup where Europe and America are the group headlines and the rest are the selectable options.

In advanced_custom_fields/core/fields/select.php LINE 68 add

		// Other way to group is using - in the field
		if (!$optgroup) {
		// vars
		$new_choices = array();		
			// Determine if there are - to group the field
			$group = false;
			$choices_group = array();
			$optgroup_key = "";
			foreach ($field['choices'] as $k => $v) {
				if (strpos($v, "-") !== false)
				{
					// Next elements are optgroup;
					if ($group) {
						$choices_group [$optgroup_key] = $new_choices;
						$new_choices = array();
						$optgroup_key = $v;
					} else {
						
						// Get ungrouped value from begining of the list
						foreach ($new_choices as $l=>$w) {
							$choices_group[$l] = $w;
						}
						$new_choices= array();
						
						$group = true;
						$optgroup_key = $v;

					}
				} else {
					if(strpos($v, ' : ') !== false)
					{
						$choice = explode(' : ', $v);
						$new_choices[ trim($choice[0]) ] = trim($choice[1]);
					}
					else
					{
						$new_choices[ trim($v) ] = trim($v);
					}
					
				}
			
			}
			if ($group) {
				// End last group
				$choices_group [$optgroup_key] = $new_choices;
				$field['choices'] = $choices_group;
				$optgroup = true;
			}
		}