process_sign_up.rb

## Params

# {
#   "user" => {
#     "owned_accounts_attributes" => { "0" => { "name" => "[FILTERED]" } },
#     "name"=>"[FILTERED]",
#     "email"=>"[FILTERED]",
#     "password"=>"[FILTERED]",
#     "time_zone"=>"Central Time (US & Canada)",
#     "terms_of_service"=>"0"
#   }
# }

def sign_up_params
  add_subdomain_from_account_name
  devise_parameter_sanitizer.sanitize(:sign_up)
end

def add_subdomain_from_account_name()
  account_params = params[:user][:owned_accounts_attributes].values.first
  if account_params.key?(:name) && ! account_params[:name].empty?
    account_params[:subdomain] = account_params[:name].gsub(/\s+/, "").downcase
  end
  params[:user][:owned_accounts_attributes]['0'] = account_params
end