Extends assigns with class attributes.

The class attribute will take provided default_classes as a default value and will be extended, on a class-by-class basis, by your assigns.

Parameters

• assigns - your component assigns
• class_attribute_name - the class attribute you want to define, :class by default
• default_classes - the css classed that will put by default

Example

assigns
|> extend_class("bg-blue-500 mt-8")
|> extend_class(:wrapper_class, "py-4 px-2 divide-y-8 divide-gray-200")

assigns now contains @html_class and @html_wrapper_class.

If your input assigns were %{class: "mt-2", wrapper_class: "divide-none"} then:

• @html_class would contain "bg-blue-500 mt-2"
• @html_wrapper_class would contain "py-4 px-2 divide-none"

Extends assigns with html_* attributes that can be interpolated within your component markup.

Parameters

• assigns - your component assigns
• attributes - a list of attributes (atoms) that will be fetched from assigns

Options

• :init - a list of attributes that will be initialized if absent from assigns
• :required - raises if required attributes are absent from assigns
• :json - when true, will JSON encode the assign value

Example

assigns
|> set_component_attributes([:id, :name, :label], required: [:id, :name])
|> set_component_attributes([:value], json: true)

assigns now contains @html_id, @html_name, @html_label and @html_value.

Extends assigns with html_* data-attributes that can be interpolated within your component markup.

Behaves exactly like set_component_attributes/3 excepted the output @html_attr assigns contain data-attributes markup.

Example

assigns
|> set_data_attributes([:key, :text], required: [:key])
|> set_data_attributes([:document], json: true)

assigns now contains @html_key, @html_text and @html_document.

Extends assigns with phx* attributes that can be interpolated within your component markup. It will automatically detect any attribute prefixed by phx_ from input assigns.

Parameters

• assigns - your component assigns

Options

• :init - a list of attributes that will be initialized if absent from assigns
• :required - raises if required attributes are absent from assigns

Example

assigns
|> set_phx_attributes([:phx_change, :phx_submit], required: [:phx_submit], init: [:phx_change])

assigns now contains @html_phx_change and @html_phx_submit.