Viewing Serialized Hash Rails - ruby-on-rails

Question

I am trying to build a default checklist for my application by serializing a hash. I don't know how to pull the information in my setup_checklist hash to my views. Any help is appreciated.
Here is my user model
class User < ActiveRecord::Base
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable, :confirmable
serialize :checklist, Hash
before_create :setup_checklist
private
def setup_checklist
self.checklist = {
"Organize Your Finances" => false,
"Approval Letter" => false,
"Get a Real Estate Agent and look for houses" => false,
"Find lawyer" => false,
"Get the mortgage" => false,
"Apprisal and inspection" => false,
"Close the deal" => false
}
end
end
my view.html.erb
<%= form_for :checklist do |f| %>
<%= f.check_box :checklist %>
<% end %>
I know I am not even close but a steer in the right direction would be great

Answer 1

To display checkboxes from a hash, you need to iterate the hash and create a checkbox for each element; for example:
<%= form_for #user do |f| %>
<% #user.checklist.each do |key, value| %>
<%= f.check_box key %>
<% end %>
<% end %>

Answer 2

May not be the prettiest, but this seems to be working for me
view.html.erb
<%= form_for #user do |f| %>
<%= f.fields_for :checklist do |c| %>
<% #user.checklist.each do |todo, completed| %>
<%= c.check_box todo %> <%= c.label todo %><br />
<% end %>
<% end %>
<%= f.submit %>
<% end %>
and then in the controller
def update
#user = User.find(params[:id])
#user.checklist.each do |todo, completed|
#user.checklist[todo] = params[:user][:checklist][todo] == "1"
end
#user.save
redirect_to action: :show, id: params[:id]
end
you could, of course, move that controller code into something like an update_checklist method on your model or refactor however works for you, but this should get you started.
If you use strong params, you'll need to permit each possible checklist value and it'll set them to '0' or '1' instead of true or false, but the controller could be
#user.update(params.required(:user).permit(checklist: ["Organize Your Finances", ...]))