slapos_panel: fetch currency from project default trade condition

master/bt5/slapos_panel/SkinTemplateItem/portal_skins/slapos_panel/Project_addSlapOSSaleSupply.py

@@ -2,10 +2,9 @@ from Products.ERP5Type.Message import translateString
 
 portal = context.getPortalObject()
 project = context
-preference_tool = portal.portal_preferences
+trade_condition = project.getSpecialiseValue(portal_type="Sale Trade Condition")
 
-# XXX HARDCODED. Probably not the correct configuration. It may be instead linked to the project / web site?
-currency = preference_tool.getPreferredAccountingTransactionCurrency()
+currency = trade_condition.getPriceCurrency()
 
 sale_supply = portal.sale_supply_module.newContent(
   title="All %s" % DateTime(),

master/bt5/slapos_panel/SkinTemplateItem/portal_skins/slapos_panel/Project_getPayableSoftwareProductPredicateList.py

@@ -3,15 +3,15 @@ from DateTime import DateTime
 project = context
 portal = context.getPortalObject()
 trash_tool = portal.portal_trash
-preference_tool = portal.portal_preferences
 
 destination_value = portal.portal_membership.getAuthenticatedMember().getUserValue()
 
 allocation_predicate_list = project.Project_getSoftwareProductPredicateList(destination_value=destination_value)
 
 now = DateTime()
-# XXX HARDCODED. Probably not the correct configuration. It may be instead linked to the project / web site?
-currency = preference_tool.getPreferredAccountingTransactionCurrency()
+
+trade_condition = project.getSpecialiseValue(portal_type="Sale Trade Condition")
+currency = trade_condition.getPriceCurrency()
 
 result_list = []