Pass a foreign table in a "form_for" - ruby-on-rails

Question

I have two model
user.rb
class User < ActiveRecord::Base
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
has_one :personal
before_create :generate_profile
end
and personal.rb
class Personal < ActiveRecord::Base
belongs_to :user
validates :user_id, presence: true
end
and in my controller i have :
def createinfo
#user = current_user
#personal = #user.personal
end
I want to do a form for like that :
<%= form_for #personal do |f| %>
Trigramme : <%= f.text_field :trigramme, :input_html => { :value => 'blabla' } %><br />
Nom : <%= f.text_field :nom %><br />
Prenom : <%= f.text_field :prenom %><br />
Poste : <%= f.text_field :poste %><br />
Bio : <%= f.text_area :bio %><br />
<%= f.submit %>
<% end %>
But i have an error and I don't know how to resove that. I think the path current_user.personal is not accepted by form_for although it print the correct thing when I only put current_user.personal.trigramme in the code.
undefined method `personal_path' for #<#<Class:0x8e15a28>:0x8e15308>
do you know how can I do this form?
EDIT : My route.rb
Rails.application.routes.draw do
devise_for :users
root 'static_pages#cvpage'
get 'home' => 'static_pages#home'
get 'help' => 'static_pages#help'
get 'about' => 'static_pages#about'
get 'contact' => 'static_pages#contact'
get 'cvpage' => 'static_pages#cvpage'
get 'createinfo' => 'static_pages#createinfo'
end
EDIT 2 schema.rb :
create_table "personals", force: :cascade do |t|
t.string "trigramme"
t.string "nom"
t.string "prenom"
t.string "poste"
t.text "bio"
t.integer "user_id"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
end
add_index "personals", ["user_id"], name: "index_personals_on_user_id"
create_table "users", force: :cascade do |t|
t.string "email", default: "", null: false
t.string "encrypted_password", default: "", null: false
t.string "reset_password_token"
t.datetime "reset_password_sent_at"
t.datetime "remember_created_at"
t.integer "sign_in_count", default: 0, null: false
t.datetime "current_sign_in_at"
t.datetime "last_sign_in_at"
t.string "current_sign_in_ip"
t.string "last_sign_in_ip"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
end

Answer 1

YEAHH! I solve my problem (take a lot of time)
I put in my personal controller this :
def update
#user = current_user
#personal = #user.personal
if #personal.update_attributes(personal_params)
# if update is successful
else
# if update is unsuccessful
end
redirect_to home_path
end
def personal_params
params.require(:personal).permit(:trigramme, :nom, :prenom, :poste, :bio)
end
And i put in my view this form :
<%= form_for(#personal, html: { method: :put }) do |f| %>
Trigramme : <%= f.text_field :trigramme %><br />
Nom : <%= f.text_field :nom %><br />
Prenom : <%= f.text_field :prenom %><br />
Poste : <%= f.text_field :poste %><br />
Bio : <%= f.text_area :bio %><br />
<%= f.submit %>
Thank you to all of you !!