These are some addons for the AFC Wordpress plugin http://www.advancedcustomfields.com/
Categories is custom field that generates a drop down field with all the categories from your wordpress site. Unique Key is custom field that generates a unique key for you to use it as a unique number or as a password.
To use it in your theme just copy categories.php and/or unique_key.php in your themes folder or subfolder and in your functions.php paste the following code:
if (function_exists('register_field')) {
register_field('Categories_field', dirname(__File__) . '/categories.php');
register_field('Unique_key_field', dirname(__File__) . '/unique_key.php');
}
If you decide to put the files in a sub folder then you can use something like that
if (function_exists('register_field')) {
register_field('Categories_field', dirname(__File__) . '/subfolder_name/categories.php');
register_field('Unique_key_field', dirname(__File__) . '/subfolder_name/unique_key.php');
}
Categories now have two more options
- Show All. When you have the display type to 'drop_down', then it will return 'all'.
When you have the display type to 'checkboxes' it will return all the categories. - Show None. When you have the display type to 'drop_down' or 'checkboxes', then it will return 'none'.
Return type: Category Slug