Question

1 – My controller is this , but this not call the view whit this name is login.html.erb, im not understand beacause what happen this , is to show the form of the login.

class FinancesController < ApplicationController
  # GET /finances
  # GET /finances.json
  def login
    @user = User.find_by_name(params[:user])
    if @user
      session[:user_id] = @user.id
      redirect_to :action => 'index'
    else
      redirect_to login_url
    end

  end

  def index
    @finances = Finance.all(:order => "created_at")

    respond_to do |format|
      format.html # index.html.erb
      format.json { render json: @finances }
    end
  end

2 – Someone can talk to me to use the authenticate method to validate a sample login whit user and password forms some, can show to me how use this method , the find_by_name_and_password dont works.

I thanks by the answers, many.

Routes.rb

Controle::Application.routes.draw do
  match 'login' => 'finances#login' 
  resources :finances
end

Answer 1

check for the @user object.

because, as of your code it will redirect to your login method if @user is not available.

To render login.html.erb from login method, there is no need for any manual redirections.