Warning message if the order has no line

bzr revid: olt@tinyerp.com-20090602110223-aw59wyc1b0rvrzhk

addons/point_of_sale/pos.py

@@ -28,11 +28,6 @@ from tools.translate import _
 import tools
 from wizard import except_wizard
 
-# XXX
-"""
-erreur si pos sans lignes
-"""
-
 
 class pos_config_journal(osv.osv):
     _name = 'pos.config.journal'

addons/point_of_sale/wizard/wizard_pos_payment.py

@@ -150,6 +150,16 @@ def _check(self, cr, uid, data, context):
     return action
 
 
+def _test_no_line(self, cr, uid, data, context):
+    pool = pooler.get_pool(cr.dbname)
+    order = pool.get('pos.order').browse(cr, uid, data['id'], context)
+
+    if not order.lines:
+        raise wizard.except_wizard(_('Error'), _('No order lines defined for this sale.'))
+
+    return {}
+
+
 def create_invoice(self, cr, uid, data, context):
     wf_service = netsvc.LocalService("workflow")
     for i in data['ids']:
@@ -161,7 +171,7 @@ def create_invoice(self, cr, uid, data, context):
 class pos_payment(wizard.interface):
     states = {
         'init': {
-            'actions': [],
+            'actions': [_test_no_line],
             'result': {
                 'type': 'choice',
                 'next_state': _check,