button

Add the submit button for the given form. When no value is given, it checks if the object is a new resource or not to create the proper label:

<%= form_for @post do |f| %> <%= f.button %> <% end %> 

In the example above, if @post is a new record, it will use “Create Post” as button label; otherwise, it uses “Update Post”.

Those labels can be customized using I18n under the helpers.submit key (the same as submit helper) and using %{model} for translation interpolation:

en: helpers: submit: create: "Create a %{model}" update: "Confirm changes to %{model}" 

It also searches for a key specific to the given object:

en: helpers: submit: post: create: "Add %{model}" 

Examples

button("Create post") # => <button name='button' type='submit'>Create post</button> button(:draft, value: true) # => <button id="post_draft" name="post[draft]" value="true" type="submit">Create post</button> button do content_tag(:strong, 'Ask me!') end # => <button name='button' type='submit'> # <strong>Ask me!</strong> # </button> button do |text| content_tag(:strong, text) end # => <button name='button' type='submit'> # <strong>Create post</strong> # </button> button(:draft, value: true) do content_tag(:strong, "Save as draft") end # => <button id="post_draft" name="post[draft]" value="true" type="submit"> # <strong>Save as draft</strong> # </button>