exercise iteration 1

app/controllers/users_controller.rb

@@ -0,0 +1,10 @@
+class UsersController < ApplicationController
+
+  def create
+    @user = User.new(username: params[:user][:username], email: params[:user][:email], password: params[:user][:password])
+    redirect_to new_user_path and return if @user.save
+    flash.now[:alert] = "#{@user.errors.full_messages}"
+    render :new
+  end
+
+end

app/models/user.rb

@@ -0,0 +1,3 @@
+class User < ApplicationRecord
+  validates :username, :email, :password,  presence: true
+end

app/views/users/new.html.haml

@@ -0,0 +1,24 @@
+%br
+%br
+%h1 Create user
+%br
+%br
+%form{ "method" => "post", "action" => "/users", "accept-charset" => "UTF-8"}
+  %input{ "type" => "hidden", "name" => "authenticity_token", "value" => form_authenticity_token }
+  %label{ :for => "username" }User name
+  %input{ :type => "text", :name => "user[username]", :id => "username" }
+  %br
+  %br
+  %label{ :for => "email" } E-mail 
+  %input{ :type => "text", :name => "user[email]", :id => "email" }
+  %br
+  %br
+  %label{ :for => "password" } Password 
+  %input{ :type => "password" , :name => "user[password]", :id => "password" }
+  %br
+  %br  
+  - flash.each do |type, msg|
+    %br
+    %code= msg
+  %br 
+  %input{ :type => "submit" }

config/routes.rb

@@ -1,3 +1,3 @@
 Rails.application.routes.draw do
-  # For details on the DSL available within this file, see https://guides.rubyonrails.org/routing.html
+  resources :users, only: [:new, :create]
 end