问Rails最佳实践-控制器还是模型？

EN

@stripe_cards = Stripe::Customer.retreive(self.stripe_customer_id).cards.all

Stripe::Customer.retreive(self.stripe_customer_id).cards.all

# user.rb

def stripe_customer_cards
  Stripe::Customer.retreive(self.stripe_customer_id).cards.all
  rescue Stripe::InvalidRequestError
    false # You could use this to render some information in your views, without breaking your app.
end

if @stripe_cards = current_user.stripe_customer_cards
  # Your being paid, sweet!
else
  # Render alert info :(
  render 'my_view', alert: 'This is an alert'
  redirect_to other_path, alert: 'Another alert'
end

# app/models/user.rb
def cards
    Stripe::Customer.retrieve(stripe_customer_id).cards.all # note the spelling of `retrieve`
end

user = User.first
#=> #<User id:1>

user.cards
#=> [Array of all cards]