Suppose my website URL is http://localhost:3000,
But when user manually type http://localhost:3000/orders, he should be redirected to root_path or some other path because this url is only valid after session is created.
and I am getting
NoMethodError in OrdersController#index
undefined method `orders' for nil:NilClass
To make sure user will be redirected to root url you have to use some
before_action (before_filter in Rails 3) to your controller.
For example if you're using Device gem for authentication you have to add to your controller:
before_action :authenticate_user! (more details...)
If you have your own authentication system you have to implement manually something like device's authenticate_user! method to set current_user.
If I correctly understood your issue you should get the idea.
Related
I am running a chat application on my RoR app. I want to be able to render the user chat conversations from my layouts/application.html.erb to have the user chat conversations across all pages but the chat is only working when I run the index action method under my Users controller [class UsersController < ApplicationController]. When I have my chat on views/users/index.html.erb runs great. Just to make it available in all pages I created a render form under views/users called _chatlist.html.erb which has this line inside:
and rendered this form in my layouts/application.html.erb body as:
<%= render partial: 'users/chatlist' %>
When I do that I get this error: undefined method `any?' for nil:NilClass.
How can I solve this nil issue? Any help will be appreciated.
You are getting that error because #conversations is not initialized.
You have to write an method and call it in application_controller.rb if you want to make it available on all the pages. Your application_controller.rb should look like this.
class ApplicationController < ActionController::Base
before_filter :load_conversatios
def load_conversatios
# load you conversation here
#conversations = Conversation.all
end
end
And I think that is not a good approach to load all the conversations on all the pages. You have to make it available from ajax call.
I am having a login page for user generated by devise gem.where I removed the registerable from model for only login not for signup.I have also generated an admin which gives default login credentials for user in seed.rb file.I have done some css work in login page. next I have generated an employee page for further process for users.
Here my doubt is the styling part what I have done in login page is also coming in employee page. I dont want that so I wrote some condition in application.html.erb
<% unless user_signed_in? %>
<%= render 'layouts/heading' %>
<% end %>
The method is defined in application.controller.rb
def user_signed_in? %>
render :layouts => 'application'
end
I tried a lot by changing conditions but it is still displaying or showing errors.
You said that you're using "device gem", but since you're talking about authentication, I assume you mean "devise"?
The user_signed_in? method is a helper which should be provided automatically by devise, and you should be able to use it in your views. You shouldn't need to define it in the application controller.
You probably want to make sure you do "before_filter :authenticate_user!" in the relevant controller (you can use the ":only" option if you only want this to apply for certain methods).
It's difficult to give any more information because you haven't said what errors you are getting. I assume you're getting some kind of syntax error on the definition of the "user_signed_in?" method, since you have an invalid "%>"on the end of the line, which I guess you copied-and-pasted from an ERB file.
I am using devise as an authentication solution for my rails4 app and want to use recaptcha when user signs up but don't know how to do this.
Try following the directions here: https://github.com/plataformatec/devise/wiki/How-To:-Use-Recaptcha-with-Devise
Get your keys from Google/Recaptcha
Install the Recaptcha gem found
here (note: for Rails 3 do gem 'recaptcha', :require =>
'recaptcha/rails')
Add <%= recaptcha_tags %> on your New
Registration view (you must have generated Devise views) the line
before your submit button.
Create/Update your
RegistrationsController - see the "controllers" section in the
README to understand how to set up your own devise controllers. Remember that "devise" expects you to use flash[:notice] and flash[:alert] and not flash[:error].
Don't forget to update the routes once you do.
I want a web page (with the url page3) to be displayed differently depending on whether a user on my website is redirected to it from the pages with urls page1 or page2.
How can I access the full url (not just the query parametres in it) from which the user was redirected in the get method in the view associated with the url page3 ?
After reading the docs more thoroughly (thanks for the tip Brandon!), I found request.META['HTTP_REFERER'] did the trick.
I'm a rails beginner learning rails 4 and I'm trying to learn by doing. I'm making a simple blog that I want some simple user authentication on. I'm trying to learn here, so I don't want to implement Devise, etc. I have a header partial that takes care of my site header and I'm trying to put a link to logout that only shows if a user is logged in. I have a simple session controller that has a new action for the signup form, a create action that sets the current user after matching the email and password and sets session[:user_id] = #current_user.id, and a destroy action that nils out the session. In my application controller I have a method like this
def logged_in?
!session[:user_id].nil?
end
In my _header.html.erb partial, I have
<% if logged_in? %>
(My link)
<% end %>
When I load the page it tells me it can't find the "logged_in?" method. Anyone know why? Thanks.
Methods on controllers are by default not exposed to the views (which your partial is part of).
2 solutions:
Create your logged_in? method as a helper method, for example in an AuthenticationHelper. Doing this you cannot access it from controllers, though.
Expose your controller method to the view using helper_method:
class ApplicationController < ActionController::Base
helper_method :logged_in?
def logged_in?
[...]
end
end
Couldn't you just use:
if #current_user