fix: Added gram, pound to ounce conversion (#21709)

* fix: pound, grams to Ounce converion factor added

* fix: patch date updated for UOM Conversion Factor

* fix: grams move to gram

* fix: duplicate entry of uom converion factor and patch added

* fix: typo fix

* fix: minor changes

* Update patches.txt

Co-authored-by: Marica <maricadsouza221197@gmail.com>

erpnext/setup/setup_wizard/data/uom_conversion_data.json

@@ -1571,5 +1571,19 @@
 		"to_uom": "Parts Per Million",
 		"abbr": "ppm",
 		"value": "10000"
+	},
+	{
+		"category": "Mass",
+		"from_uom": "Pound",
+		"to_uom": "Ounce",
+		"abbr": "oz",
+		"value": "16"
+	},
+	{
+		"category": "Mass",
+		"from_uom": "Gram",
+		"to_uom": "Ounce",
+		"abbr": "oz",
+		"value": "0.035274"
 	}
 ]

erpnext/setup/setup_wizard/operations/install_fixtures.py

@@ -336,13 +336,14 @@ def add_uom_data():
 				"category_name": _(d.get("category"))
 			}).insert(ignore_permissions=True)
 
-		uom_conversion = frappe.get_doc({
-			"doctype": "UOM Conversion Factor",
-			"category": _(d.get("category")),
-			"from_uom": _(d.get("from_uom")),
-			"to_uom": _(d.get("to_uom")),
-			"value": d.get("value")
-		}).insert(ignore_permissions=True)
+		if not frappe.db.exists("UOM Conversion Factor", {"from_uom": _(d.get("from_uom")), "to_uom": _(d.get("to_uom"))}):
+			uom_conversion = frappe.get_doc({
+				"doctype": "UOM Conversion Factor",
+				"category": _(d.get("category")),
+				"from_uom": _(d.get("from_uom")),
+				"to_uom": _(d.get("to_uom")),
+				"value": d.get("value")
+			}).insert(ignore_permissions=True)
 
 def add_market_segments():
 	records = [