Created
November 18, 2021 00:34
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Form object sample on Rails
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class UserRegistrationsController < ApplicationController | |
def new | |
@user_registration_form = UserRegistrationForm.new | |
end | |
def create | |
@user_registration_form = UserRegistrationForm.new(user_registration_form_params) | |
if @user_registration_form.save | |
sign_in(@user_registration_form.user) | |
redirect_to action: :completed | |
else | |
render :new | |
end | |
end | |
def completed; end | |
private | |
def user_registration_form_params | |
params.require(:user_registration_form).permit( | |
:email, | |
:password, | |
:password_confirmation, | |
:terms_of_service | |
) | |
end | |
end |
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class UserRegistrationForm | |
include ActiveModel::Model | |
include ActiveModel::Attributes | |
attribute :email, :string | |
attribute :password, :string | |
attribute :password_confirmation, :string | |
validates :email, format: { with: URI::MailTo::EMAIL_REGEXP } | |
validate :email_is_not_taken_by_another | |
validates :password, format: { with: /\A[\p{ascii}&&[^\x20]]{8,72}\z/ }, confirmation: { allow_blank: true } | |
validates :terms_of_service, acceptance: { allow_nil: false } | |
def save | |
return false if invalid? | |
user.save! | |
UserMailer.with(user: user).welcome.deliver_later | |
true | |
end | |
def user | |
@user ||= User.new(email: email, password: password) | |
end | |
private | |
def email_is_not_taken_by_another | |
errors.add(:email, :taken, value: email) if User.exists?(email: email) | |
end | |
end |
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class User < ApplicationRecord | |
has_secure_password | |
validates :email, format: { with: URI::MailTo::EMAIL_REGEXP }, uniqueness: true | |
validates :password, format: { with: /\A[\p{ascii}&&[^\x20]]{8,72}\z/ }, confirmation: { allow_blank: true } | |
end |
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<%= form_with(model: @user_registration_form, url: user_registrations_path, local: true) do |form| %> | |
... | |
<% end %> |
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