fix: create product detail script on install

(cherry picked from commit fdd6c46b5f718800dd062dbde1c718a2c93ddfbe)

crm/fcrm/doctype/crm_products/crm_products.py

@@ -1,9 +1,111 @@
 # Copyright (c) 2025, Frappe Technologies Pvt. Ltd. and contributors
 # For license information, please see license.txt
 
-# import frappe
+import frappe
 from frappe.model.document import Document
 
 
 class CRMProducts(Document):
 	pass
+
+
+def create_product_details_script(doctype):
+	if not frappe.db.exists("CRM Form Script", "Product Details Script for " + doctype):
+		script = get_product_details_script()
+		frappe.get_doc(
+			{
+				"doctype": "CRM Form Script",
+				"name": "Product Details Script for " + doctype,
+				"dt": doctype,
+				"view": "Form",
+				"script": script,
+				"enabled": 1,
+				"is_standard": 1,
+			}
+		).insert()
+
+
+def get_product_details_script(doctype):
+	doctype_class = "class " + doctype.replace(" ", "")
+
+	return (
+		doctype_class
+		+ """
+ {
+  update_total() {
+    let total = 0
+    let total_qty = 0
+    let net_total = 0
+    let discount_applied = false
+
+    this.doc.products.forEach((d) => {
+      total += d.amount
+      total_qty += d.qty
+      net_total += d.net_amount
+      if (d.discount_percentage > 0) {
+        discount_applied = true
+      }
+    })
+
+    this.doc.total = total
+    this.doc.net_total = net_total || total
+
+    if (!net_total && discount_applied) {
+      this.doc.net_total = net_total
+    }
+  }
+}
+
+class CRMProducts {
+  products_add() {
+    let row = this.doc.getRow('products')
+    row.trigger('qty')
+    this.doc.trigger('update_total')
+  }
+
+  products_remove() {
+    this.doc.trigger('update_total')
+  }
+
+  async product_code(idx) {
+    let row = this.doc.getRow('products', idx)
+
+    let a = await call("frappe.client.get_value", {
+        doctype: "CRM Product",
+        filters: { name: row.product_code },
+        fieldname: ["product_name", "standard_rate"],
+    })
+
+    row.product_name = a.product_name
+    if (a.standard_rate && !row.rate) {
+        row.rate = a.standard_rate
+        row.trigger("rate")
+    }
+  }
+
+  qty(idx) {
+    let row = this.doc.getRow('products', idx)
+    row.amount = row.qty * row.rate
+    row.trigger('discount_percentage', idx)
+  }
+
+  rate() {
+    let row = this.doc.getRow('products')
+    row.amount = row.qty * row.rate
+    row.trigger('discount_percentage')
+  }
+
+  discount_percentage(idx) {
+    let row = this.doc.getRow('products', idx)
+    if (!row.discount_percentage) {
+      row.net_amount = row.amount
+      row.discount_amount = 0
+    }
+    if (row.discount_percentage && row.amount) {
+      row.discount_amount = (row.discount_percentage / 100) * row.amount
+      row.net_amount = row.amount - row.discount_amount
+    }
+    this.doc.trigger('update_total')
+  }
+}"""
+	)

crm/install.py

@@ -4,6 +4,8 @@ import click
 import frappe
 from frappe.custom.doctype.custom_field.custom_field import create_custom_fields
 
+from crm.fcrm.doctype.crm_products.crm_products import create_product_details_script
+
 
 def before_install():
 	pass
@@ -19,6 +21,7 @@ def after_install(force=False):
 	add_default_industries()
 	add_default_lead_sources()
 	add_standard_dropdown_items()
+	add_default_scripts()
 	frappe.db.commit()
 
 
@@ -353,3 +356,8 @@ def add_standard_dropdown_items():
 		crm_settings.append("dropdown_items", item)
 
 	crm_settings.save()
+
+
+def add_default_scripts():
+	for doctype in ["CRM Lead", "CRM Deal"]:
+		create_product_details_script(doctype)