Trouble rendering data attributes in Haml, Rails - ruby-on-rails

Question

I've been trying to convert the following from html.erb to html.haml, but things aren't rendering 100% correctly. Specifically I'm wondering how to correctly write the bit of code within the script tags in Haml.
html.erb:
<%= form_tag charges_path do %>
<h4>So what comes with being a Blocipedia premium member? </h4>
<p>The ability to create your very OWN private wikis of course!</p>
<script class='stripe-button' src="https://checkout.stripe.com/checkout.js" data-key="<%= #stripe_btn_data[:key] %>" data-amount=<%= #stripe_btn_data[:amount] %> data-description="<%= #stripe_btn_data[:description] %>" ></script>
<% end %>
html.haml:
= form_tag charges_path do
%h4 So what comes with being a Blocipedia premium member?
%p The ability to create your very OWN private wikis of course!
%script.stripe-button{"data-key" => #stripe_btn_data[:key], :src => "https://checkout.stripe.com/checkout.js", "data_amount" => #stripe_btn_data[:amount], "data_description" => #stripe_btn_data[:description]}
Before I tried to rewrite my code in Haml, my original html.erb file rendered like so below.
Before Haml (The way my page SHOULD render):
Yet after trying to change to Haml, I was not 100% successful in getting the page to render in exactly the same way
After Haml (notice the data-amount ($15.00) and the data-discription (BigMoney Membership) aren't being displayed)
What is the correct Haml syntax to render this page properly?
Update
I'm trying to grab the data-amount and description from my charges_controller.rb
charges_controller.rb:
class ChargesController < ApplicationController
def create
# Creates a Stripe Customer object, for associating with the charge
customer = Stripe::Customer.create(
email: current_user.email,
card: params[:stripeToken]
)
# Where the real magic happens
charge = Stripe::Charge.create(
customer: customer.id, # Note -- this is NOT the user_id in your app
amount: Amount.default,
description: "BigMoney Membership - #{current_user.email}",
currency: 'usd'
)
flash[:notice] = "Thanks for all the money, #{current_user.email}! You now have a premium Blocipedia account! Feel free to pay me again."
current_user.update_attribute(:role, "premium")
redirect_to root_path # Or wherever
# Stripe will send back CardErrors, with friendly messages when something goes wrong.
# This rescue block catches and displays those errors.
rescue Stripe::CardError => e
flash[:error] = e.message
redirect_to new_charge_path
end
def new
#stripe_btn_data = {
key: "#{ Rails.configuration.stripe[:publishable_key] }",
description: "BigMoney Membership - #{current_user.name}",
amount: Amount.default
}
end
def destroy
if current_user.update_attributes(role: "standard")
flash[:notice] = "You now have a standard Blocipedia account. Feel free to upgrade back to premium at anytime!"
redirect_to root_path
else
flash[:error] = "There was an error downgrading your account. Please contact technical support."
redirect_to edit_user_registration_path
end
end
end
amount.rb:
class Amount
def self.default
15_00
end
end

Answer 1

To achieve the same HTML output of ERB using HAML
= form_tag charges_path do
%h4 So what comes with being a Blocipedia premium member?
%p The ability to create your very OWN private wikis of course!
%script.stripe-button{data: {key: #stripe_btn_data[:key], amount: #stripe_btn_data[:amount], description: #stripe_btn_data[:description]}, src: "https://checkout.stripe.com/checkout.js"}