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POLogging in with username using Devise with Rails 4
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  1. POLogging in with username using Devise with Rails 4
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    copied!<p>I'm using Rails 4.0 and Devise 3.0.0.rc.</p> <p>I installed Devise with its defaults - i.e. sign up/in using your email address. However, I'd like the users to be able to sign up with a username instead of their email address. I've followed the railscasts in terms of which parameters to change, plus any advice I can find on here for things I might need to change for Rails 4. However, whenever I try to create a new user, I am getting the error 'email can't be blank'. Does anyone have an idea as to what is causing this, and how I can fix it? Thanks!!</p> <p>Code:</p> <p>application controller:</p> <pre><code>class ApplicationController &lt; ActionController::Base # Prevent CSRF attacks by raising an exception. # For APIs, you may want to use :null_session instead. protect_from_forgery with: :exception before_filter :configure_permitted_parameters, if: :devise_controller? protected def configure_permitted_parameters devise_parameter_sanitizer.for(:sign_up) { |u| u.permit(:username, :password, :password_confirmation) } devise_parameter_sanitizer.for(:sign_in) { |u| u.permit(:username, :password, :remember_me) } end end </code></pre> <p>Sign in (sign up form is pretty much the same):</p> <pre><code>&lt;%= form_for(resource, :as =&gt; resource_name, :url =&gt; session_path(resource_name)) do |f| %&gt; &lt;div&gt;&lt;%= f.label :username %&gt;&lt;br /&gt; &lt;%= f.text_field :username, :autofocus =&gt; true %&gt;&lt;/div&gt; </code></pre> <p>In devise.rb config:</p> <pre><code>config.authentication_keys = [ :username ] </code></pre> <p>users controller:</p> <pre><code>private # Use callbacks to share common setup or constraints between actions. def set_user @user = User.find(params[:id]) end # Never trust parameters from the scary internet, only allow the white list through. def user_params params.require(:user).permit(:first_name, :middle_names, :last_name, :date_of_birth, :gender, :line_1, :line_2, :line_3, :town, :county, :postcode, :contact_number, :email, :username, :password, :password_confirmation, :remember_me) end </code></pre> <p>user.rb:</p> <pre><code>protected def self.find_for_database_authentication(warden_conditions) conditions = warden_conditions.dup login = conditions.delete(:login) where(conditions).where(["lower(username) = :value", { :value =&gt; login.downcase }]).first end </code></pre>
 

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