feat(minor): No Copy attribute for custom fields (#15915)

Fix  #13252

![image](https://user-images.githubusercontent.com/1050053/153055276-28714781-b142-41e8-9218-d7b8f0f60b22.png)

frappe/custom/doctype/customize_form/customize_form.py

@@ -540,6 +540,7 @@ docfield_properties = {
 	'in_global_search': 'Check',
 	'in_preview': 'Check',
 	'bold': 'Check',
+	'no_copy': 'Check',
 	'hidden': 'Check',
 	'collapsible': 'Check',
 	'collapsible_depends_on': 'Data',

frappe/custom/doctype/customize_form/test_customize_form.py

@@ -97,13 +97,18 @@ class TestCustomizeForm(unittest.TestCase):
 
 		custom_field = d.get("fields", {"fieldname": "test_custom_field"})[0]
 		custom_field.reqd = 1
+		custom_field.no_copy = 1
 		d.run_method("save_customization")
 		self.assertEqual(frappe.db.get_value("Custom Field", "Event-test_custom_field", "reqd"), 1)
+		self.assertEqual(frappe.db.get_value("Custom Field", "Event-test_custom_field", "no_copy"), 1)
 
 		custom_field = d.get("fields", {"is_custom_field": True})[0]
 		custom_field.reqd = 0
+		custom_field.no_copy = 0
 		d.run_method("save_customization")
 		self.assertEqual(frappe.db.get_value("Custom Field", "Event-test_custom_field", "reqd"), 0)
+		self.assertEqual(frappe.db.get_value("Custom Field", "Event-test_custom_field", "no_copy"), 0)
+
 
 	def test_save_customization_new_field(self):
 		d = self.get_customize_form("Event")

frappe/custom/doctype/customize_form_field/customize_form_field.json

@@ -20,6 +20,7 @@
   "in_global_search",
   "in_preview",
   "bold",
+  "no_copy",
   "allow_in_quick_entry",
   "translatable",
   "column_break_7",
@@ -437,13 +438,19 @@
    "fieldname": "show_dashboard",
    "fieldtype": "Check",
    "label": "Show Dashboard"
+  },
+  {
+   "default": "0",
+   "fieldname": "no_copy",
+   "fieldtype": "Check",
+   "label": "No Copy"
   }
  ],
  "idx": 1,
  "index_web_pages_for_search": 1,
  "istable": 1,
  "links": [],
- "modified": "2022-01-27 21:45:22.349776",
+ "modified": "2022-02-08 19:38:16.111199",
  "modified_by": "Administrator",
  "module": "Custom",
  "name": "Customize Form Field",
@@ -453,4 +460,4 @@
  "sort_field": "modified",
  "sort_order": "ASC",
  "states": []
-}
+}