[FIX] res: currency, rates name_search

In currencies, advanced search with "equals" or "not equals" on rates
was not possible for something else than a date, in server format (crash).

This is because the name field of the model res.currency.rate is a date

This is now possible to search rates with just a float and the equal operators,
it returns currencies which are having at least one rate set to this float value

This is also possible to search rates with the equal operators with a date in
user (context) date format.

1 files changed, 19 insertions, 0 deletions

diff --git a/openerp/addons/base/res/res_currency.py b/openerp/addons/base/res/res_currency.py
index dac5988b585..5a92eba01df 100644
--- a/openerp/addons/base/res/res_currency.py
+++ b/openerp/addons/base/res/res_currency.py
@@ -259,6 +259,25 @@ class res_currency_rate(osv.osv):
     }
     _order = "name desc"
 
+    def name_search(self, cr, user, name, args=None, operator='ilike', context=None, limit=80):
+        if operator in ['=', '!=']:
+            try:
+                date_format = '%Y-%m-%d'
+                if context.get('lang'):
+                    lang_obj = self.pool['res.lang']
+                    lang_ids = lang_obj.search(cr, user, [('code', '=', context['lang'])], context=context)
+                    if lang_ids:
+                        date_format = lang_obj.browse(cr, user, lang_ids[0], context=context).date_format
+                name = time.strftime('%Y-%m-%d', time.strptime(name, date_format))
+            except ValueError:
+                try:
+                    args.append(('rate', operator, float(name)))
+                except ValueError:
+                    return []
+                name = ''
+                operator = 'ilike'
+        return super(res_currency_rate, self).name_search(cr, user, name, args=args, operator=operator, context=context, limit=limit)
+
 res_currency_rate()
 
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