feat: Virtual DocField

Add virtual docfield through which you can make callable properties for
the controller

frappe/core/doctype/docfield/docfield.json

@@ -17,6 +17,7 @@
   "hide_days",
   "hide_seconds",
   "reqd",
+  "is_virtual",
   "search_index",
   "column_break_18",
   "options",
@@ -534,13 +535,19 @@
    "fieldname": "show_dashboard",
    "fieldtype": "Check",
    "label": "Show Dashboard"
+  },
+  {
+   "default": "0",
+   "fieldname": "is_virtual",
+   "fieldtype": "Check",
+   "label": "Virtual"
   }
  ],
  "idx": 1,
  "index_web_pages_for_search": 1,
  "istable": 1,
  "links": [],
- "modified": "2022-01-03 11:56:19.812863",
+ "modified": "2022-01-27 21:22:20.529072",
  "modified_by": "Administrator",
  "module": "Core",
  "name": "DocField",

frappe/custom/doctype/customize_form/customize_form.py

@@ -558,7 +558,8 @@ docfield_properties = {
 	'allow_in_quick_entry': 'Check',
 	'hide_border': 'Check',
 	'hide_days': 'Check',
-	'hide_seconds': 'Check'
+	'hide_seconds': 'Check',
+	'is_virtual': 'Check',
 }
 
 doctype_link_properties = {

frappe/custom/doctype/customize_form_field/customize_form_field.json

@@ -14,6 +14,7 @@
   "non_negative",
   "reqd",
   "unique",
+  "is_virtual",
   "in_list_view",
   "in_standard_filter",
   "in_global_search",
@@ -115,6 +116,12 @@
    "fieldtype": "Check",
    "label": "Unique"
   },
+  {
+   "default": "0",
+   "fieldname": "is_virtual",
+   "fieldtype": "Check",
+   "label": "Is Virtual"
+  },
   {
    "default": "0",
    "fieldname": "in_list_view",
@@ -436,7 +443,7 @@
  "index_web_pages_for_search": 1,
  "istable": 1,
  "links": [],
- "modified": "2022-01-03 14:50:32.035768",
+ "modified": "2022-01-27 21:45:22.349776",
  "modified_by": "Administrator",
  "module": "Custom",
  "name": "Customize Form Field",

frappe/model/base_document.py

@@ -244,7 +244,13 @@ class BaseDocument(object):
 				continue
 
 			df = self.meta.get_field(fieldname)
-			if df:
+
+			if df and df.get("is_virtual"):
+				if d[fieldname] is None:
+					_val = getattr(self, fieldname, None)
+					if _val and not callable(_val):
+						d[fieldname] = _val
+			elif df:
 				if df.fieldtype=="Check":
 					d[fieldname] = 1 if cint(d[fieldname]) else 0
 
@@ -264,11 +270,6 @@ class BaseDocument(object):
 				if isinstance(d[fieldname], list) and df.fieldtype not in table_fields:
 					frappe.throw(_('Value for {0} cannot be a list').format(_(df.label)))
 
-				if d[fieldname] is None:
-					_val = getattr(self, fieldname, None)
-					if _val and not callable(_val):
-						d[fieldname] = _val
-
 			if convert_dates_to_str and isinstance(d[fieldname], (
 				datetime.datetime,
 				datetime.date,