My current task involves implementing a coupon feature on the checkout page using an AJAX request to validate the coupon and adjust the price accordingly. However, when the checkout view is loaded, I encounter an error message:
The first argument in the form cannot be nil or empty
This error points to the line
<%= form_for @actioncode, method: :post ...Situation: The @actioncode variable represents a model that contains action codes stored by the admin. The coupon_code value is not associated with any model but refers to the user input in the form. This coupon_code needs to be validated against the 'actioncode' column in the Actioncode model and if valid, update the price based on the 'discount' value in the Actioncode model.
The checkout view includes the following form:
<%= form_for @actioncode, method: :post, url: {action: "check_actioncode"}, remote: true do |f| %>
<%= f.text_field :coupon_code, :placeholder => "Enter your coupon" %>
<%= f.submit "Submit Coupon Code" %>
<% end %>
Routes:
post 'check_actioncode' => 'actioncodes#check_actioncode'
In the actioncodes controller, the check_actioncode method is defined as follows:
def check_actioncode
@actioncode = Actioncode.find(params[:coupon_code])
respond_to do |format|
if <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="b899f8d9dbccd1d7d6dbd7dcdd96d6d1d4">[email protected]</a>?
format.js {}
else
flash.now[:success] = "Action code not found or expired"
end
end
end
The organizations controller renders the checkout view:
def checkout
@organization = Organization.new(organizationnew_params)
if @organization.save
@organization.members.each do |single_member|
single_member.send_activation_email
end
@actioncode = Actioncode.new
@amount = 100.00
@currency = "EUR"
@description = @organization.id
@transaction_description = "My description"
@transaction_type = "S"
@hash = hash(@description, @amount, @currency, @transaction_type)
render 'checkout' # This renders the checkout view.
else
render 'new_premium'
end
end
Update: When I include @actioncode = Actioncode.new in the controller that loads the view, I encounter another error stating undefined method 'coupon_code', which pertains to the second line of the form. Although 'coupon_code' is not explicitly defined anywhere, it should simply represent the temporary user input that is validated against the actioncode in the model. What steps should I take to address this issue?