CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-4
user1175969
user1175969

Reputation: 570

Setting include_blank for an f.select with options_for_select

I have the following in my View:

<%= f.select :blood_group, options_for_select([
              ['O+', Membership.blood_groups.keys[0]], ['O-', Membership.blood_groups.keys[1]],
              ], @user.blood_group) %>

How do I add include_blank attribute to the above? When I just append it at the end, I get the error "wrong number of arguments (given 3, expected 1..2)"

Upvotes: 0

Views: 658

Answers (2)

Khanh Pham
Khanh Pham

Reputation: 2973

You can do this following as:

<%= f.select :blood_group, options_for_select([
    ['O+', Membership.blood_groups.keys[0]], 
    ['O-', Membership.blood_groups.keys[1]]], @user.blood_group, {include_blank: true}, {}) %>

You can refer document at: options_for_select

Upvotes: 0

mrvncaragay
mrvncaragay

Reputation: 1260

You could do it this way:

<%= f.select :blood_group, [['', nil], ['one', 1], ['two', 2], ['three', 3], ['four', 4], ['five', 5], ['', nil]]

its optional to specify options_for_select note that this add two blanks field at the beginning and in the end.

Upvotes: 1

Related Questions