fix: update hsn_code on change of item_group

india_compliance/gst_india/client_scripts/item.js

@@ -1,19 +1,45 @@
-frappe.ui.form.on('Item', {
-	onload: function(frm) {
-		india_compliance.set_hsn_code_query(frm.get_field("gst_hsn_code"));
-	},
+frappe.ui.form.on("Item", {
+    onload: function (frm) {
+        india_compliance.set_hsn_code_query(frm.get_field("gst_hsn_code"));
+    },
 
-	gst_hsn_code: function(frm) {
-		if ((!frm.doc.taxes || !frm.doc.taxes.length) && frm.doc.gst_hsn_code) {
-			frappe.db.get_doc("GST HSN Code", frm.doc.gst_hsn_code).then(hsn_doc => {
-				$.each(hsn_doc.taxes || [], function(_, tax) {
-					let a = frappe.model.add_child(frm.doc, 'Item Tax', 'taxes');
-					a.item_tax_template = tax.item_tax_template;
-					a.tax_category = tax.tax_category;
-					a.valid_from = tax.valid_from;
-					frm.refresh_field('taxes');
-				});
-			});
-		}
-	},
+    item_group: async function (frm) {
+        if (frm.doc.item_group) {
+            const { message } = await frappe.db.get_value(
+                "Item Group",
+                frm.doc.item_group,
+                "gst_hsn_code"
+            );
+
+            if (message.gst_hsn_code && message.gst_hsn_code !== frm.doc.gst_hsn_code) {
+                frm.set_value("gst_hsn_code", message.gst_hsn_code);
+            }
+        }
+    },
+
+    before_save: async function (frm) {
+        if (!frm.doc.gst_hsn_code && frm.doc.item_group) {
+            const { message } = await frappe.db.get_value(
+                "Item Group",
+                frm.doc.item_group,
+                "gst_hsn_code"
+            );
+
+            frm.set_value("gst_hsn_code", message.gst_hsn_code);
+        }
+    },
+
+    gst_hsn_code: function (frm) {
+        if ((!frm.doc.taxes || !frm.doc.taxes.length) && frm.doc.gst_hsn_code) {
+            frappe.db.get_doc("GST HSN Code", frm.doc.gst_hsn_code).then(hsn_doc => {
+                $.each(hsn_doc.taxes || [], function (_, tax) {
+                    let a = frappe.model.add_child(frm.doc, "Item Tax", "taxes");
+                    a.item_tax_template = tax.item_tax_template;
+                    a.tax_category = tax.tax_category;
+                    a.valid_from = tax.valid_from;
+                    frm.refresh_field("taxes");
+                });
+            });
+        }
+    },
 });

india_compliance/public/js/quick_entry.js

@@ -24,11 +24,11 @@ class GSTQuickEntryForm extends frappe.ui.form.QuickEntryForm {
                 fieldtype: "Section Break",
                 description: this.api_enabled
                     ? __(
-                        `When you enter a GSTIN, the permanent address linked to it is
+                          `When you enter a GSTIN, the permanent address linked to it is
                         autofilled.<br>
                         Change the {0} to autofill other addresses.`,
-                        [frappe.meta.get_label("Address", "pincode")]
-                    )
+                          [frappe.meta.get_label("Address", "pincode")]
+                      )
                     : "",
                 collapsible: 0,
             },
@@ -338,15 +338,19 @@ class ItemQuickEntryForm extends frappe.ui.form.QuickEntryForm {
     }
 
     set_hsn_from_item_group() {
-        let item_group_field = this.dialog.fields_dict.item_group;
+        const item_group_field = this.dialog.fields_dict.item_group;
+        const hsn_code_field = this.dialog.fields_dict.gst_hsn_code;
 
         item_group_field.df.onchange = async () => {
             const { message } = await frappe.db.get_value(
                 "Item Group",
                 item_group_field.value,
                 "gst_hsn_code"
             );
-            this.dialog.set_value("gst_hsn_code", message.gst_hsn_code);
+
+            if (message.gst_hsn_code && message.gst_hsn_code !== hsn_code_field.value) {
+                this.dialog.set_value("gst_hsn_code", message.gst_hsn_code);
+            }
         };
     }
 }