[enhance] Add Issue Type and Opportunity Type masters (#11598)

* [enhance] added & linked Issue Type & Opportunity Type with opportunity

* [patch] create issue and opportunity type from the custom field if available

* [minor] issue_type and opportunity type should be mandatory

* [patches] removed try catch from the patch

* [fix] patch

* [refactor] cleanup issue/opportunity type

erpnext/patches/v9_1/create_issue_opportunity_type.py

@@ -0,0 +1,34 @@
+# Copyright (c) 2017, Frappe and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe import _
+
+def execute():
+	# delete custom field if exists
+	for fieldname in ('issue_type', 'opportunity_type'):
+		custom_field = frappe.db.get_value("Custom Field", {"fieldname": fieldname})
+		if custom_field:
+			frappe.delete_doc("Custom Field", custom_field, ignore_permissions=True)
+
+	frappe.reload_doc('support', 'doctype', 'issue_type')
+	frappe.reload_doc('support', 'doctype', 'issue')
+	frappe.reload_doc('crm', 'doctype', 'opportunity_type')
+	frappe.reload_doc('crm', 'doctype', 'opportunity')
+
+	# rename enquiry_type -> opportunity_type
+	from frappe.model.utils.rename_field import rename_field
+	rename_field('Opportunity', 'enquiry_type', 'opportunity_type')
+
+	# create values if already set
+	for opts in (('Issue', 'issue_type', 'Issue Type'),
+		('Opportunity', 'opportunity_type', 'Opportunity Type')):
+		for d in frappe.db.sql('select distinct {0} from `tab{1}`'.format(opts[1], opts[0])):
+			if not frappe.db.exists(opts[2], d[0]):
+				frappe.get_doc(dict(doctype = opts[2], name=d[0])).insert()
+
+	# fixtures
+	for name in ('Hub', _('Sales'), _('Support'), _('Maintenance')):
+		if not frappe.db.exists('Opportunity', name):
+			frappe.get_doc(dict(doctype = 'Opportunity Type', name=name)).insert()