[precision and currency] [fix] fix in get precision and display of currency

public/js/wn/misc/number_format.js

@@ -120,7 +120,7 @@ function get_currency_symbol(currency) {
 		if(!currency)
 			currency = wn.boot.sysdefaults.currency;
 
-		return wn.model.get_value("Currency", currency, "symbol") || currency;
+		return wn.model.get_value(":Currency", currency, "symbol") || currency;
 	} else {
 		// load in template
 		return wn.currency_symbols[currency];
@@ -161,5 +161,6 @@ function roundNumber(num, dec) {
 function precision(fieldname, doc) {
 	if(!doc) doc = cur_frm.doc;
 	var df = wn.meta.get_docfield(doc.doctype, fieldname, doc.parent || doc.name);
+	if(!df) console.log(fieldname + ": could not find docfield in method precision()");
 	return wn.meta.get_field_precision(df, doc);
 }

public/js/wn/model/meta.js

@@ -159,7 +159,7 @@ $.extend(wn.meta, {
 	
 	get_field_precision: function(df, doc) {
 		var precision = wn.defaults.get_default("float_precision") || 6;
-		if(df.fieldtype === "Currency") {
+		if(df && df.fieldtype === "Currency") {
 			var currency = this.get_field_currency(df, doc);
 			var number_format = get_number_format(currency);
 			var number_format_info = get_number_format_info(number_format);

webnotes/model/meta.py

@@ -24,6 +24,7 @@
 
 from __future__ import unicode_literals
 import webnotes
+from webnotes.utils import cstr
 	
 def get_dt_values(doctype, fields, as_dict = 0):
 	return webnotes.conn.sql('SELECT %s FROM tabDocType WHERE name="%s"' % (fields, doctype), as_dict = as_dict)
@@ -88,7 +89,7 @@ def get_field_currency(df, doc):
 	"""get currency based on DocField options and fieldvalue in doc"""
 	currency = None
 	
-	if ":" in df.options:
+	if ":" in cstr(df.options):
 		split_opts = df.options.split(":")
 		if len(split_opts)==3:
 			currency = webnotes.conn.get_value(split_opts[0], doc.fields.get(split_opts[1]),