feat: add payment webform override

payments/overrides/payment_webform.py

@@ -0,0 +1,47 @@
+import frappe
+from frappe.website.doctype.web_form.web_form import WebForm
+
+from payments.utils import get_payment_gateway_controller
+
+
+class PaymentWebForm(WebForm):
+	def validate(self):
+		super().validate()
+
+		if getattr(self, "accept_payment", False):
+			self.validate_payment_amount()
+
+	def validate_payment_amount(self):
+		if self.amount_based_on_field and not self.amount_field:
+			frappe.throw(frappe._("Please select a Amount Field."))
+		elif not self.amount_based_on_field and not self.amount > 0:
+			frappe.throw(frappe._("Amount must be greater than 0."))
+
+	def get_payment_gateway_url(self, doc):
+		if getattr(self, "accept_payment", False):
+			controller = get_payment_gateway_controller(self.payment_gateway)
+
+			title = "Payment for {0} {1}".format(doc.doctype, doc.name)
+			amount = self.amount
+			if self.amount_based_on_field:
+				amount = doc.get(self.amount_field)
+
+			from decimal import Decimal
+			if amount is None or Decimal(amount) <= 0:
+				return frappe.utils.get_url(self.success_url or self.route)
+
+			payment_details = {
+				"amount": amount,
+				"title": title,
+				"description": title,
+				"reference_doctype": doc.doctype,
+				"reference_docname": doc.name,
+				"payer_email": frappe.session.user,
+				"payer_name": frappe.utils.get_fullname(frappe.session.user),
+				"order_id": doc.name,
+				"currency": self.currency,
+				"redirect_to": frappe.utils.get_url(self.success_url or self.route)
+			}
+
+			# Redirect the user to this url
+			return controller.get_payment_url(**payment_details)