Add interface to create and update user accounts

app/assets/stylesheets/users.scss

@@ -0,0 +1,3 @@
+// Place all the styles related to the Users controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: https://sass-lang.com/

app/controllers/users_controller.rb

@@ -0,0 +1,55 @@
+class UsersController < ApplicationController
+  def new
+    @user=User.new
+  end
+
+  def create
+    @user=User.new(user_params)
+    if @user.save
+      render 'show'
+    else
+      redirect_to new_user_path
+    end
+  end
+
+  def edit
+    @user = User.find(params[:id])
+  end
+
+  def update
+    @user = User.find(params[:id])
+    attrs = user_params
+    respond_to do |format|
+      if @user.update(attrs)
+        flash[:notice] = 'Konto wurde erfolgreich aktualisiert.'
+        format.html { redirect_to user_url(@user) }
+        format.xml  { head :ok }
+      else
+        format.html { render :action => "edit" }
+        format.xml  { render :xml => @user.errors.to_xml }
+      end
+    end
+  end
+
+  def show
+    @user = User.find_by_id(params[:id])
+  end
+
+  def index
+    @users = User.all
+  end
+
+  def destroy
+    @user = User.find(params[:id])
+    @user.destroy
+    respond_to do |format|
+      format.html { redirect_to users_url }
+      format.xml  { head :ok }
+    end
+  end
+
+  private
+  def user_params
+    params.require(:user).permit(:email, :password)
+  end
+end

app/helpers/users_helper.rb

@@ -0,0 +1,2 @@
+module UsersHelper
+end

app/models/user.rb

@@ -2,6 +2,7 @@ class User < ApplicationRecord
 
   has_many :user_accesses, :dependent => :destroy
   has_many :suppliers, :through => :user_accesses
+  
 
   attr_accessor :password
   before_save :encrypt_password

app/views/suppliers/index.haml

@@ -20,4 +20,6 @@
 
 %br/
 = link_to 'Neuer Lieferant', new_supplier_url
-    
+|
+= link_to 'Konten', users_url
+    

app/views/users/_form.haml

@@ -0,0 +1,9 @@
+= simple_form_for @user do |f|
+  = f.input :email, required: true
+  = f.input :password, required: true
+  = f.input :password_confirmation, required: true
+
+  .form-actions
+    = f.submit class: 'btn'
+
+= link_to 'Zurück', users_path

app/views/users/edit.haml

@@ -0,0 +1,2 @@
+%h1 Konto bearbeiten
+= render 'form'

app/views/users/index.html.haml

@@ -0,0 +1,8 @@
+%h1 Konten
+- for user in @users
+  %li 
+    = link_to user.email, user_path(user)
+%br
+= link_to 'Neues Konto', new_user_url
+|
+= link_to 'Zurück', suppliers_path

app/views/users/new.html.haml

@@ -0,0 +1,2 @@
+%h1 Neues Konto anlegen
+= render 'form'

app/views/users/show.html.haml

@@ -0,0 +1,9 @@
+%h1 Konto bearbeiten
+= @user.email
+%br
+%br
+= link_to 'Bearbeiten', edit_user_path(@user)
+|
+= link_to 'Löschen', user_path(@user), data: { confirm: 'Bist du sicher?' }, :method => :delete
+|
+=link_to 'Zurück', users_path

config/routes.rb

@@ -1,4 +1,6 @@
 Rails.application.routes.draw do
+  get 'users/new'
+  get 'users/show'
   get 'log_in' => 'sessions#new', :as => :log_in
   match 'log_out' => 'sessions#destroy', :as => :log_out, :via => [:get, :post]
   resources :sessions, :only => [:new, :create, :destroy]
@@ -15,5 +17,9 @@ Rails.application.routes.draw do
     end
   end
 
+  resources :users
+
   match '/:controller(/:action(/:id))', :via => [:get, :post]
+  match '/users', to: 'users#index', via: 'get'
+  match '/users/:id', to: 'users#show', via: 'get'
 end