Hooks

There are several hooks that allow you to include your custom classes and functionality at the right time, in the right place:

General

(action) carbon_register_fields

Called prior to registering the Fields.

(action) carbon_after_register_fields

Called after all Fields have been registered.

Templates

(filter) carbon_template ($html, $name)

Applied to the template html before putting it into the admin footer.

(filter) carbon_template_{template-name} ($html)

Same as carbon_template, but you can specify a template name.

Theme Options Container

(filter) carbon_{container-title}_button_label ($label)

Allows you to modify the button label of the theme options container. The filter name is based on the container’s title. For example, the filter name for a container with a title of Theme Options would be carbon_theme_options_button_label. Passes the following parameter:

• string $label The unfiltered button label.

Relationship & Association Fields

(filter) carbon_relationship_title ($title, $name, $id, $type, $subtype)

Allows you to modify the title of the relationship / association items. Helpful when implementing custom relationship / association items. Passes the following parameters:

• string $title The unfiltered item title.
• string $name Name of the relationship / association field.
• int $id The database ID of the item.
• string $type Item type (post, term, user, comment, or a custom one).
• string $subtype Subtype – page, post, category, etc.

(filter) carbon_relationship_item_label ($label, $name, $id, $type, $subtype)

Allows you to modify the label of the relationship / association items. Helpful when implementing custom relationship / association items, or when you want to change the default label. Passes the following parameters:

• string $label The unfiltered item label.
• string $name Name of the relationship / association field.
• int $id The database ID of the item.
• string $type Item type (post, term, user, comment, or a custom one).
• string $subtype Subtype – page, post, category, etc.

(filter) carbon_relationship_comment_length ($number, $name)

Allows you to change the number of characters, visible from the comment text in an item. Passes the following parameters:

• int $number Number of characters. Default: 30
• string $name Name of the relationship / association field.

(filter) carbon_relationship_options_{name}_post_{post_type} ($options)

Allows you to modify the available options of the relationship / association field with name {name} from the {post_type} post type.

For example, if you want to filter the page post type options of the crb_relationship field, you would use the following filter: carbon_relationship_options__crb_relationship_post_page

Note: The double underscore __ is intended because the {name} of the field is automatically prefixed with one underscore, and the other underscore is part of the filter name.

(filter) carbon_relationship_options_{name}_taxonomy_{taxonomy} ($options)

Allows you to modify the available options of the relationship / association field with name {name} from the {taxonomy} taxonomy.

For example, if you want to filter the category taxonomy options of the crb_relationship field, you would use the following filter: carbon_relationship_options__crb_relationship_taxonomy_category

Note: The double underscore __ is intended because the {name} of the field is automatically prefixed with one underscore, and the other underscore is part of the filter name.

(filter) carbon_relationship_options_{name}_user ($options)

Allows you to modify the available options of the relationship / association field with name {name} that are users.

For example, if you want to filter the users options of the crb_relationship field, you would use the following filter: carbon_relationship_options__crb_relationship_user

Note: The double underscore __ is intended because the {name} of the field is automatically prefixed with one underscore, and the other underscore is part of the filter name.

(filter) carbon_relationship_options_{name}_comment ($options)

Allows you to modify the available options of the relationship / association field with name {name} that are comments.

For example, if you want to filter the comments options of the crb_relationship field, you would use the following filter: carbon_relationship_options__crb_relationship_comment

Note: The double underscore __ is intended because the {name} of the field is automatically prefixed with one underscore, and the other underscore is part of the filter name.

(filter) carbon_relationship_options ($options, $name)

Allows you to filter the available options of a relationship / association field. Passes the following parameters:

• array $options Unfiltered options.
• string $name Name of the relationship / association field.

Gravity Form Field

(filter) crb_gravity_form_options ($options)

Applied to the gravity form options.

Map Field

(filter) carbon_map_api_key ($api_key)

Allows you to set your own API key for Google Maps.