feat: allow date range to be selected as timespan

frappe/desk/doctype/dashboard_chart/dashboard_chart.js

@@ -40,6 +40,7 @@ frappe.ui.form.on('Dashboard Chart', {
 
 	timespan: function(frm) {
 		const time_interval_options = {
+			"Select Date Range": ["Quarterly", "Monthly", "Weekly", "Daily"],
 			"Last Year": ["Quarterly", "Monthly", "Weekly", "Daily"],
 			"Last Quarter": ["Monthly", "Weekly", "Daily"],
 			"Last Month": ["Weekly", "Daily"],

frappe/desk/doctype/dashboard_chart/dashboard_chart.json

@@ -18,6 +18,8 @@
   "number_of_groups",
   "column_break_6",
   "timespan",
+  "from_date",
+  "to_date",
   "time_interval",
   "timeseries",
   "filters_section",
@@ -80,7 +82,7 @@
    "fieldname": "timespan",
    "fieldtype": "Select",
    "label": "Timespan",
-   "options": "Last Year\nLast Quarter\nLast Month\nLast Week"
+   "options": "Last Year\nLast Quarter\nLast Month\nLast Week\nSelect Date Range"
   },
   {
    "depends_on": "timeseries",
@@ -171,9 +173,21 @@
    "fieldname": "number_of_groups",
    "fieldtype": "Int",
    "label": "Number of Groups"
+  },
+  {
+   "depends_on": "eval:doc.timespan === 'Choose Time Span'",
+   "fieldname": "from_date",
+   "fieldtype": "Date",
+   "label": "From Date"
+  },
+  {
+   "depends_on": "eval:doc.timespan === 'Choose Time Span'",
+   "fieldname": "to_date",
+   "fieldtype": "Date",
+   "label": "To Date"
   }
  ],
- "modified": "2019-10-11 16:11:17.051669",
+ "modified": "2019-10-29 02:26:14.838057",
  "modified_by": "Administrator",
  "module": "Desk",
  "name": "Dashboard Chart",

frappe/desk/doctype/dashboard_chart/dashboard_chart.py

@@ -12,13 +12,15 @@ from frappe.model.document import Document
 
 @frappe.whitelist()
 @cache_source
-def get(chart_name = None, chart = None, no_cache = None, from_date=None, to_date=None, refresh = None):
+def get(chart_name = None, chart = None, no_cache = None, from_date = None, to_date = None, refresh = None):
 	if chart_name:
 		chart = frappe.get_doc('Dashboard Chart', chart_name)
 	else:
 		chart = frappe._dict(frappe.parse_json(chart))
 
 	timespan = chart.timespan
+	from_date = chart.from_date
+	to_date = chart.to_date
 	timegrain = chart.time_interval
 	filters = frappe.parse_json(chart.filters_json)