[jsonrates api] add from global defaults

erpnext/setup/doctype/global_defaults/global_defaults.json

@@ -66,6 +66,20 @@
    "label": "Disable Rounded Total", 
    "permlevel": 0, 
    "read_only": 0
+  }, 
+  {
+   "fieldname": "section_break_8", 
+   "fieldtype": "Section Break", 
+   "permlevel": 0, 
+   "precision": ""
+  }, 
+  {
+   "description": "For automatic exchange rates go to jsonrates.com and signup for an API key", 
+   "fieldname": "jsonrates_api_key", 
+   "fieldtype": "Data", 
+   "label": "jsonrates.com API Key", 
+   "permlevel": 0, 
+   "precision": ""
   }
  ], 
  "hide_toolbar": 0, 
@@ -73,7 +87,7 @@
  "idx": 1, 
  "in_create": 1, 
  "issingle": 1, 
- "modified": "2015-03-02 02:23:20.688406", 
+ "modified": "2015-05-07 05:43:49.760061", 
  "modified_by": "Administrator", 
  "module": "Setup", 
  "name": "Global Defaults", 

erpnext/setup/doctype/global_defaults/global_defaults.py

@@ -17,6 +17,7 @@ keydict = {
 	'hide_currency_symbol':'hide_currency_symbol',
 	'account_url':'account_url',
 	'disable_rounded_total': 'disable_rounded_total',
+	'jsonrates_api_key': 'jsonrates_api_key'
 }
 
 from frappe.model.document import Document

erpnext/setup/utils.py

@@ -60,14 +60,16 @@ def before_tests():
 
 @frappe.whitelist()
 def get_exchange_rate(from_currency, to_currency):
-	if frappe.conf.jsonrates_api_key:
+	jsonrates_api_key = frappe.conf.jsonrates_api_key or frappe.db.get_default("jsonrates_api_key")
+
+	if jsonrates_api_key:
 		cache = frappe.cache()
 		key = "currency_exchange_rate:{0}:{1}".format(from_currency, to_currency)
 		value = cache.get(key)
 		if not value:
 			import requests
 			response = requests.get("http://jsonrates.com/get/?from={0}&to={1}&apiKey={2}".format(from_currency,
-				to_currency, frappe.conf.jsonrates_api_key))
+				to_currency, jsonrates_api_key))
 			# expire in 24 hours
 			value = response.json().get("rate")
 			cache.setex(key, value, 24 * 60 * 60)