Saving multiple records with a single form in Rails 4

Question

I have a model called Family, which belongs_to User I want to enable the user to add multiple family members in a single form, which is in

Answer 1

You need to tweak your code like this.Assuming you have the attribute name in users table.

In your User model

class User < ActiveRecord::Base
    has_many :families, :dependent => :destroy 
    accepts_nested_attributes_for :families, :allow_destroy => true
end

In your users_controller

def new
@user = User.new
@family = 3.times { @user.families.build } #here
end

Your strong parametrs should look like this

def user_params 
params.require(:user).permit(:name, families_attributes: [:name,:email]) 
end

#users/new.html.erb
<%= form_for(@user) do |f| %>

<%= f.label :name %>

<%= f.text_field :name %>

<%= f.fields_for :familes do |builder| %>
<%= render 'family_fields', :f => builder %>
<% end %>

<%= f.submit %>

<% end %>

#users/_family_fields.html.erb

<%= f.label :name, "Name" %>        
<%= f.text_field :name %>


<%= f.label :email, "Email" %>
<%= f.text_field :email %>