Can't get Braintree Error Messages to show in Rails 4 - ruby-on-rails

Question

On my site, a user registers and gives their credit card information in the same form. The form uses Devise to save the user. I needed to import the actual devise code into the controller (a bad practice, i know, but with Braintree I couldn't see any other way to wrap the user and charge into one transaction). I finally got the whole thing to work except I am having trouble with Braintree error messages. I just tried creating a transaction with an amount of $2600 which should trigger a Braintree error and display a message, but no such error was triggered. Here is my code:
def create
nonce_from_the_client = params[:payment_method_nonce]
# code taken from devise
build_resource(sign_up_params)
begin
#charge = resource.charges.build
#charge.nonce = nonce_from_the_client
braintree_call = nil
#braintree_errors = nil
ActiveRecord::Base.transaction do
puts "beforer resource saved".green
resource.save!
puts "resource saved".green
puts "charge built".green
puts "before call_braintree".green
braintree_call = #charge.call_braintree!
if braintree_call.success? && !braintree_call.errors.any?
puts "braintree_call was a success".green
#charge.save
#do nothing. All good
else
puts "braintree error".red
#braintree_errors = braintree_call.errors
braintree_call.errors.each do |error|
puts "#{error.code}\n".red
puts "#{error.message}".red
end
raise "#Charge Failed"
end
end
rescue
puts "#charge #{#charge.inspect}".red
puts "#charge errors: #{#charge.errors.inspect}".red
end
yield resource if block_given?
if resource.persisted?
puts "resource persisted".green
if resource.active_for_authentication?
flash[:success] = "Welcome! You have signed up successfully."
# set_flash_message! :notice, :signed_up
sign_up(resource_name, resource)
respond_with resource, location: after_sign_up_path_for(resource)
else
puts "not sure about this".blue
# set_flash_message! :notice, :"signed_up_but_#{resource.inactive_message}"
flash[:danger] = "signed_up_but_#{resource.inactive_message}"
expire_data_after_sign_in!
respond_with resource, location: after_inactive_sign_up_path_for(resource)
end
else
puts "resource did not persist".red
clean_up_passwords resource
set_minimum_password_length
# respond_with resource
puts "NOW WE KNOW".on_red
render 'new' #not sure if this works
end
puts "resource errors are #{resource.errors.inspect}".red
end
And here is the model for Charge that includes the call_braintree method above:
class Charge < ActiveRecord::Base
belongs_to :user
attr_accessor :nonce
after_create :activate_user_account
def activate_user_account
puts "in the activate user account after_Create method".green
self.user.activate
end
def set_amount
amount = self.user.plan.amount * self.user.plan.length
puts "amount is #{amount} and is class #{amount.class}".green
return amount
end
def call_braintree!
puts "in call braintree".green
result = Braintree::Transaction.sale(
:amount => "#{self.set_amount}",
:payment_method_nonce => self.nonce,
:options => {
:submit_for_settlement => true
}
)
end
end
Here are the server logs this generates:
Started POST "/users" for 127.0.0.1 at 2016-02-26 15:06:29 -0500
Processing by Users::RegistrationsController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"Z0jHeFqXJk6iEwdEohilVd2Io85NKoPuzUepjfSXxU0=", "user"=>{"type"=>"Presenter", "plan_id"=>"2", "organization_name"=>"", "first_name"=>"David", "last_name"=>"Applebau,", "email"=>"asfdjhfasdlk#dffadsdf.com", "password"=>"[FILTERED]", "password_confirmation"=>"[FILTERED]", "telephone"=>"6462343800", "group_code"=>""}, "field-fnames"=>"", "field-lnames"=>"", "payment_method_nonce"=>"815abd1c-0be5-40e4-8135-a468021c8b75"}
(0.2ms) BEGIN
beforer resource saved
User Exists (0.2ms) SELECT 1 AS one FROM "users" WHERE "users"."email" = 'asfdjhfasdlk#dffadsdf.com' LIMIT 1
Plan Load (0.1ms) SELECT "plans".* FROM "plans" WHERE "plans"."id" = $1 LIMIT 1 [["id", 2]]
SQL (0.2ms) INSERT INTO "users" ("created_at", "email", "encrypted_password", "first_name", "last_name", "organization_name", "plan_id", "plan_length", "plan_start_date", "plan_status", "telephone", "type", "updated_at") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13) RETURNING "id" [["created_at", "2016-02-26 20:06:29.294712"], ["email", "asfdjhfasdlk#dffadsdf.com"], ["encrypted_password", "$2a$10$jeIa3c.i73f/hBV7ne/Dfu0MAawQzoNak808zLqjjkFeJKmXt78yK"], ["first_name", "David"], ["last_name", "Applebau,"], ["organization_name", ""], ["plan_id", 2], ["plan_length", 1], ["plan_start_date", "2016-02-26 20:06:29.289691"], ["plan_status", "active"], ["telephone", "6462343800"], ["type", "Presenter"], ["updated_at", "2016-02-26 20:06:29.294712"]]
SQL (0.1ms) INSERT INTO "charges" ("created_at", "updated_at", "user_id") VALUES ($1, $2, $3) RETURNING "id" [["created_at", "2016-02-26 20:06:29.307071"], ["updated_at", "2016-02-26 20:06:29.307071"], ["user_id", 20]]
in the activate user account after_Create method
User Load (0.1ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 LIMIT 1 [["id", 20]]
in the after method of the state machine
Plan Load (0.1ms) SELECT "plans".* FROM "plans" WHERE "plans"."id" = $1 LIMIT 1 [["id", 2]]
SQL (0.2ms) UPDATE "users" SET "plan_start_date" = $1, "updated_at" = $2 WHERE "users"."type" IN ('Presenter') AND "users"."id" = 20 [["plan_start_date", "2016-02-26 20:06:29.310158"], ["updated_at", "2016-02-26 20:06:29.311003"]]
resource saved
charge built
before call_braintree
in call braintree
braintree error
(0.2ms) ROLLBACK
ichabod is yolo
#charge #<Charge id: nil, user_id: 20, stripe_id: nil, created_at: "2016-02-26 20:06:29", updated_at: "2016-02-26 20:06:29">
#charge errors: #<ActiveModel::Errors:0x007ffac3f16790 #base=#<Charge id: nil, user_id: 20, stripe_id: nil, created_at: "2016-02-26 20:06:29", updated_at: "2016-02-26 20:06:29">, #messages={}>
resource did not persist
NOW WE KNOW
Rendered layouts/logged_in/_error_messages.html.erb (0.0ms)
#type is Presenter
#free_trial is
in here
Plan Load (0.3ms) SELECT "plans".* FROM "plans" WHERE "plans"."user_type" = 'Presenter' AND ("plans"."name" != 'free_trial') ORDER BY "plans"."display_order_number" ASC
Rendered layouts/logged_in/_registration_form_header.html.erb (1.7ms)
Rendered layouts/logged_in/_payment_form.html.erb (0.1ms)
Rendered layouts/logged_in/_registration_submit_button.html.erb (0.1ms)
Rendered charges/_braintree_js.html.erb (0.0ms)
Rendered devise/registrations/new.html.erb within layouts/logged_in (8.3ms)
Rendered layouts/logged_in/_navbar.html.erb (0.4ms)
resource errors are #<ActiveModel::Errors:0x007ffac3fd6ae0 #base=#<Presenter id: nil, email: "asfdjhfasdlk#dffadsdf.com", encrypted_password: "$2a$10$jeIa3c.i73f/hBV7ne/Dfu0MAawQzoNak808zLqjjkF...", reset_password_token: nil, reset_password_sent_at: nil, remember_created_at: nil, sign_in_count: 0, current_sign_in_at: nil, last_sign_in_at: nil, current_sign_in_ip: nil, last_sign_in_ip: nil, created_at: "2016-02-26 20:06:29", updated_at: "2016-02-26 20:06:29", confirmation_token: nil, confirmed_at: nil, confirmation_sent_at: nil, organization_id: nil, type: "Presenter", organization_name: "", organization_code: nil, identifier: nil, stripe_customer_id: nil, plan_id: 2, presenter_maximum: nil, workshop_id: nil, presentation_allowance: 2, plan_status: "active", plan_start_date: "2016-02-26 20:06:29", plan_length: 1, contact_name: nil, contact_phone: nil, first_name: "david", last_name: "applebaum", telephone: "6462343800", group_id: nil>, #messages={:plan_id=>[], :organization_name=>[], :first_name=>[], :last_name=>[], :email=>[], :password=>[], :password_confirmation=>[], :telephone=>[], :group_code=>[]}>
Completed 200 OK in 2171ms (Views: 81.0ms | ActiveRecord: 1.8ms)
The only thing I did differently in order to get a braintree error was switch the amount in the call_braintree method with 2600.
As you can see in the logs, some type of error was thrown or the call was not a success, and yet Braintree did not provide an error. Whenever the users card does not work, for whatever reason, I need an error message from braintree to show the user. How do I get braintree errors to properly display?

Answer 1

Full disclosure: I work at Braintree. If you have any further questions, feel free to contact our support team.
Errors are only populated for Braintree validation errors. Processor errors are reported in the Transaction's processor_response_code
Appropriate error handling for Transactions that fail at the processor level would look like this:
if braintree_call.success? && !braintree_call.errors.any?
puts "braintree_call was a success".green
#charge.save
#do nothing. All good
elsif braintree_call.transaction
puts "Transaction processing error: #{braintree_call.transaction.status}: Response Code: #{braintree_call.transaction.processor_response_code}\n".red
raise "#Charge Failed"
else
puts "braintree error".red
#braintree_errors = braintree_call.errors
braintree_call.errors.each do |error|
puts "#{error.code}\n".red
puts "#{error.message}".red
end
raise "#Charge Failed"
end
Check out our docs for more info on transaction statuses and processor response codes