Handling Subdomains and Multitenancy From Scratch Discussion

This is my favorite episode thus far. The expansion on top of Rails is so intuitive, never thought how useful separating accounts from users would be.

Hopefully there's a simple answer to this. When I'm making AJAX requests using multi-tenancy that works like this, what's the safest way to get information about the subdomain and the user into the request? Right now, my thought is to stick them directly on the page somewhere (lets say hidden fields) then pull that information out with JS to populate the rest of the form.

My worry is, somebody knows a subdomain they want to create a blog post on. So they just clack in different user_id's until they find the right combination.

Is there a different/better way to do this? Or can I somehow figure out what session the user is actually in (maybe via the csrf token?) & then validate against that before doing anything back-end? Or is this **the reason** for the csrf token, and if so, how much protection is cooked in?

This is kind of a dark area of understanding for me right now, so any insight would be appreciated!

is build_account a helper for something like User.account.build ? Is there a specific name for it/link to documentation

@excid3:disqus how would you go about eliminating subdomains like www and admin from being used? Something like a before create action that says subdomain != 'www' or 'admin' ?

Also, how does Rails know to route to pages with a subdomain? In the routes file you never explicity told rails you were using a subdomain. I feel like your code should break when you did example.lvh.me.com/users/si... and then it redirected you to the example.lvh.me.com correctly. To me, all subdomain is is an attribute on the Account model.

How is the user_id on the account table being set?

Nice tutorial. please how do i register a user with the same email address but different subdomain, like Slack?

Is there anything special that needs to be done to continue to use devise helpers like current_user or user_signed_in? inside of a multitenant app?

I created this Multi-tenant app, just to see how things work. But while creating new post I am keep getting error (undefined method `posts' for nil:NilClass ) I spent 3-4 hours debugging but no luck. Any help much appreciated!
Error is in
def index
@posts = @account.posts.all
end

Has anyone had any luck getting this to work with rails 5? Puma seems to have some issues that i can't quite figure out. Running the server under 'rails s -p 3000 -b lvh.me' allows me to access the server correctly, but it's showing the subdomain as 'subdomain.lvh.'

Just a heads up that the code for devise_parameter_sanitizer changes a bit with Devise 4 and up. It should now be devise_parameter_sanitizer.permit(:sign_up, keys: [:email, :password, :password_confirmation, account_attributes: [:subdomain]])

Is there a way to make the account available in a initializer or environment file? For instance I would like to use separate action mailer settings in environments/production.rb, and different braintree authorization settings in initializers/braintree.rb. Because the account is being set in the application controller, it is not available to be used as a conditional in these files. Is there any way to achieve this this? Maybe I can set these attributes in another file that is below the application controller?

I am using Rails 5 API with Devise Token Auth and Angular 2 with Angular2-Token as my front end. I keep getting an error saying "Unpermitted parameters: confirm_success_url, registration" and it fails without saving to the DB saying "422 Unprocessable Entity". I have tried adding these to permitted parameters and then get an error saying "ActiveModel::UnknownAttributeError (unknown attribute 'confirm_success_url' for User.)" and it fails with "500 Internal Server Error". I have removed "confirm_success_url, registration" from permit as I know that this is probably not the solution but am confused on how I should move forward? Sorry if this is a silly question as I am new to some of these technologies but any help moving forward would be appreciated.

Is there a way to make devise user session shared across all subdomain?

undefined method `for' for #<Devise::ParameterSanitizer:0x007fd1715018e8>

def configure_permitted_parameters
  devise_parameter_sanitizer.permit(:sign_up, keys: [ :email, :password,
                                    :password_confirmation, account_attributes: [:subdomain] ])
end

undefined method `projects' for nil:NilClass

  def index
    @projects = @account.projects.all 
  end
.....  def set_project
      @project = @account.projects.find(params[:id])
    end
....

I am trying to set up after_sign_in_path_for and I am having some trouble with it. When the user signs in to localhost:3000 I would hope it would be able to send them to subdomain.lvh.me:3000/posts but it just keeps them at localhost:3000
This is my method

def after_sign_in_path_for
posts_url
end

Does anyone know how I should do this? I have already followed the direction on the devise page "How to scope login to subdomain. I am having the user log in on another page and when they log in, I want them to be directed to the post index page.

Hey Chris, before diving into the code side of things is there anything now after looking back that you would advise on with this approach? After chatting with Heroku, they advised against multiple schemas and to take a column scoped approach.

Hey Chris, I'm wondering how could I set one account for more than one user (owner).

Hey Chris,
I love your videos and I'm planning on subscribing again to Go Rails. Is there any change you can build a tutorial on how to build a full CRM application with a single database (row-level approach)?
I'm learning to implement rails as a backend and react in the frontend. Maybe you're more comfortable building a full Ruby On Rails application instead of using react and that's fine by me. I'm just very eager to learn how to build a full CRM application, as an example the idea I have been struggling with is to build a management app that can have many admins and each admin has many users, users belong to admin, users can has many projects through a join table and only the admin can create new projects. There are some resources out there but most are outdated and using the apartment gem which no longer supports the new versions of Rails.