I am on chapter 19 of the learn rails book by Daniel Kehoe and have created a form. However when I deliberately make errors in order to test the validations no messages appear. for example when I submit an empty form it simply renders a new form without the error message and when I enter an incorrect email address, without '@' again it seems to accept my inputs with no errors. so my question is why are the validations not raising any error messages?
here is my model contact.rb
class Contact
include ActiveModel::Model
attr_accessor :name, :email, :content
validates_presence_of :name
validates_presence_of :email
validates_presence_of :content
validates_format_of :email,
with: /\A[-a-z0-9_+\.]+\@([-a-z0-9]+\.)+[a-z0-9]{2,4}\z/i
validates_length_of :content, :maximum => 500
end
application layout application.html.erb
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title><%= content_for?(:title) ? yield(:title) : "Workspace" %></title>
<meta name="description" content="<%= content_for?(:description) ? yield(:description) : "Workspace" %>">
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => 'reload' %>
<%= javascript_include_tag 'application', 'data-turbolinks-track' => 'reload' %>
<%= csrf_meta_tags %>
</head>
<body>
<header>
<%= render 'layouts/navigation' %>
</header>
<main role="main">
<%= render 'layouts/messages' %>
<%= yield %>
</main>
</body>
</html>
form view new.html.erb
<% content_for :title do %>Contact<% end %>
<h3>Contact</h3>
<div class="form">
<%= form_with(model: @contact) do |form| %>
<%= form.label :name %>
<%= form.text_field :name, autofocus: true %>
<br/>
<br/>
<%= form.label :email %>
<%= form.email_field :email %>
<br/>
<br/>
<%= form.label 'message' %>
<%= form.text_area :content, size: '40x5' %>
<br/>
<br/>
<%= form.submit 'Submit', class: 'submit' %>
<% end %>
</div>
contacts_controller.rb
class ContactsController < ApplicationController
def new
@contact = Contact.new
end
def create
@contact = Contact.new(secure_params)
if @contact.valid?
# TODO send message
flash[:notice] = "Message sent from #{@contact.name}."
redirect_to root_path
else
render :new
end
end
private
def secure_params
params.require(:contact).permit(:name, :email, :content)
end
end
layout helper _messages.html.erb
<%# Rails flash messages styled for Bootstrap 3.0 %>
<% flash.each do |name, msg| %>
<% if msg.is_a?(String) %>
<div class="alert alert-dismissible alert-<%= name.to_s == 'notice' ? 'success' : 'danger' %>">
<button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button>
<%= content_tag :div, msg, :id => "flash_#{name}" %>
</div>
<% end %>
<% end %>
EDIT 1:
The validations seem to work when I create a new contact in the console manually. But the app is not validating them when created through the app form. see below for my experiment with creating a new contact.
2.3.4 :002 > c=Contact.new
=> #<Contact:0x000000055741a8>
2.3.4 :003 > c
=> #<Contact:0x000000055741a8>
2.3.4 :004 > c.name='biggles2'
=> "biggles2"
2.3.4 :005 > c
=> #<Contact:0x000000055741a8 @name="biggles2">
2.3.4 :006 > c.valid?
=> false
2.3.4 :007 > c.email='[email protected]'
=> "[email protected]"
2.3.4 :008 > c
=> #<Contact:0x000000055741a8 @name="biggles2", @validation_context=nil, @errors=#<ActiveModel::Errors:0x0000000554a948 @base=#<Contact:0x000000055741a8 ...>, @messages={:email=>["can't be blank", "is invalid"], :content=>["can't be blank"]}, @details={:email=>[{:error=>:blank}, {:error=>:invalid, :value=>nil}], :content=>[{:error=>:blank}]}>, @email="[email protected]">
2.3.4 :009 > c.email
=> "[email protected]"
2.3.4 :010 > c.name
=> "biggles2"
2.3.4 :011 > c.content='this is some content and its not too long'
=> "this is some content and its not too long"
2.3.4 :012 > c.valid?
=> true
2.3.4 :013 > c
=> #<Contact:0x000000055741a8 @name="biggles2", @validation_context=nil, @errors=#<ActiveModel::Errors:0x0000000554a948 @base=#<Contact:0x000000055741a8 ...>, @messages={}, @details={}>, @email="[email protected]", @content="this is some content and its not too long">