Selecting a default value in select helper method

rubyonrails-talk
1

How do I select a default value in a blank form when using select vs select_tag?

For example, I have a collection of states and I want the local state to be automatically selected when filling out the form.

Am I stuck with using select_tag and options_for_select?

Thanks.

2

In ur new action initialize that attribute to whatever value u wish.
Check the docs it may have an option to set a default value.

3

Hi,

Even when this value is set in the action, first element in the select list is populated by default when the html is rendered.

Regards, HAK

4

partydrone wrote:

How do I select a default value in a blank form when using select vs select_tag?

select is designed to choose a particular value for an attribute of an object. The call is:

select object, method, choices, options, html_options

The given method on the given object is called and the item from the choices that matches (if any) will be selected.

If this is for a create form, then set the new object's attribute to the initial default you want in your method:

def new   @item = Item.new   @item.state = default_state_value end

Then, in the view:

  <%= select :item, :state, ...