[fix] [minor] get_perm function added in form.js

public/js/legacy/form.js

@@ -789,4 +789,8 @@ _f.Frm.prototype.dirty = function() {
 
 _f.Frm.prototype.get_docinfo = function() {
 	return wn.model.docinfo[this.doctype][this.docname];
+}
+
+_f.Frm.prototype.get_perm = function(permlevel, access_type) {
+	return this.perm[permlevel] ? this.perm[permlevel][access_type] : null;
 }

public/js/wn/form/grid.js

@@ -228,7 +228,7 @@ wn.ui.form.GridRow = Class.extend({
 			.appendTo(me.row);
 		
 		$.each(me.docfields, function(ci, df) {
-			if(!df.hidden && df.in_list_view && me.grid.frm.perm[df.permlevel][READ]
+			if(!df.hidden && df.in_list_view && me.grid.frm.get_perm(df.permlevel, READ)
 				&& !in_list(["Section Break", "Column Break"], df.fieldtype)) {
 				var colsize = 2,
 					txt = me.doc ?