unable to do validations in rails - ruby-on-rails

Question

I have a contact us page
class ContactPagesController < ApplicationController
def new
#contact_page = ContactPage.new
end
def create
#contact_page = ContactPage.new(contact_page_params)
if #contact_page.save
flash[:notice]="details saved successfully"
redirect_to contact_pages_path
else
flash[:notice]="details not saved"
redirect_to contact_pages_path
end
# if #contact_page.errors.any?
# flash[:notice]="there are errors"
# end
end
private
def contact_page_params
params.require(:contact_page).permit( :first_name, :last_name, :email, :phone, :do_you_have_land, :moving_time_frame, :financing, :to$
end
end
and my model
class ContactPage < ApplicationRecord
validates :email, presence: true
end
and the view
new.html.erb
<%= form_for #contact_page, :html => { :class => 'form-horizontal', multipart: true } do |f| %>
<% if #contact_page.errors.any? %>
<div id="error_explanation">
<h3>
<%= pluralize(#contact_page.errors.count, "error") %>
prohibited this employee from being saved:
</h3>
<ul>
<% #contact_page.errors.full_messages.each do |message| %>
<li>
<%= message %>
</li>
<% end %>
</ul>
</div>
<% end %>
<div class="control-group">
<%= f.label :First_Name, :class => 'control-label' %>
<div class="controls">
<%= f.text_field :first_name, :class => 'text_field' %>
</div>
</div>
<div class="control-group">
<%= f.label :Email, :class => 'control-label' %>
<div class="controls">
<%= f.text_field :email, :class => 'text_field' %>
</div>
</div>
<div class="control-group">
<%= f.label :How_can_we_assist_you, :class => 'control-label' %>
<div class="controls">
<%= f.text_field :assist_you, :class => 'text_field' %>
</div>
</div>
<div class="form-actions">
<%= f.submit nil, :class => 'btn btn-primary' %>
</div>
<% end %>
If all the fields are filled the data is being saved into the database.If email is left blank data is also not being saved inside the database(due to validation), but the error message is also not rendering . The #contact_page.errors.any? inside the view page is being ignored for some reason.I am expecting an error "email can't be blank" on the top of the form.
why the save action is not triggering the validation errors?
my routes for contact page
get 'contact_pages' => 'contact_pages#new', :as => 'contact_pages'
post 'contact_pages' => 'contact_pages#create'
Need help in what I have gone wrong.Any help is highly appreciated.Thanks in advance.

Answer 1

class SaveController < ApplicationController
def new
#contact_page = ContactPage.new
end
def create
if
#contact_page.save
flash[:notice]="Successfuly stored"
redirect_to contact_pages_path
else
flash[:notice]="please check your inputs"
render :new
end
end
end
In View: -
<% if notice %>
<div class="alert alert-success alert-dismissible" role="alert">
<button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">×</span></button>
<%= notice %>
</div>
<% end %>

Answer 2

you should user render on error not redirect
def create
#contact_page = ContactPage.new(contact_page_params)
if
#contact_page.save
flash[:notice]="details saved successfully"
redirect_to contact_pages_path
else
flash[:notice]="details not saved"
render :new
end
end