field 'nextrun_link' --> 'nextrun_date', add default-order

planner.py

@@ -98,10 +98,9 @@ class ScheduledBooking(DeactivableMixin, ModelSQL, ModelView):
     nextrun = fields.One2Many(
         string='Next Execution Date', size=1, field='planner',
         model_name='cashbook.planner.nextrun')
-    nextrun_link = fields.Function(fields.Many2One(
-        string='Next Execution Date', readonly=True,
-        model_name='cashbook.planner.nextrun'),
-        'on_change_with_nextrun_link')
+    nextrun_date = fields.Function(fields.Date(
+        string='Next Execution Date', readonly=True),
+        'on_change_with_nextrun_date', searcher='search_nextrun_date')
 
     bookingtype = fields.Selection(
         string='Type', selection=sel_bookingtype, required=True,
@@ -159,6 +158,8 @@ class ScheduledBooking(DeactivableMixin, ModelSQL, ModelView):
     @classmethod
     def __setup__(cls):
         super(ScheduledBooking, cls).__setup__()
+        cls._order.insert(0, ('name', 'ASC'))
+        cls._order.insert(0, ('nextrun_date', 'ASC'))
         t = cls.__table__()
         cls._sql_indexes.update({
             Index(
@@ -189,7 +190,8 @@ class ScheduledBooking(DeactivableMixin, ModelSQL, ModelView):
             self.booktransf.name
             if self.booktransf
             else self.category.rec_name if self.category else '-',
-            self.nextrun_link.rec_name if self.nextrun_link else '-',
+            Report.format_date(self.nextrun_date, lang=None)
+            if self.nextrun_date else '-',
             Report.format_currency(
                 self.amount, lang=None, currency=self.cashbook.currency)
             ])
@@ -302,17 +304,17 @@ class ScheduledBooking(DeactivableMixin, ModelSQL, ModelView):
             return self.cashbook.currency.id
 
     @fields.depends('nextrun')
-    def on_change_with_nextrun_link(self, name=None):
+    def on_change_with_nextrun_date(self, name=None):
         """ get nextrun-record if exist
 
         Args:
             name (str, optional): field name. Defaults to None.
 
         Returns:
-            int: id of nextrun-record or None
+            date: date of nextrun or None
         """
         if self.nextrun:
-            return self.nextrun[0].id
+            return self.nextrun[0].date
         return None
 
     @fields.depends(
@@ -402,6 +404,44 @@ class ScheduledBooking(DeactivableMixin, ModelSQL, ModelView):
         """
         self.on_change_frequ()
 
+    @staticmethod
+    def order_nextrun_date(tables):
+        """ get query to sort by date of next execution
+
+        Args:
+            tables (list): tables
+
+        Returns:
+            list of query: sort-query
+        """
+        pool = Pool()
+        Nextrun = pool.get('cashbook.planner.nextrun')
+        Planner2 = pool.get('cashbook.planner')
+        tab_nxrun = Nextrun.__table__()
+        tab_plan = Planner2.__table__()
+        table, _ = tables[None]
+
+        query = tab_plan.join(
+                tab_nxrun,
+                condition=tab_nxrun.planner == tab_plan.id
+            ).select(
+                tab_nxrun.date,
+                where=tab_plan.id == table.id)
+        return [query]
+
+    @classmethod
+    def search_nextrun_date(cls, name, clause):
+        """ get query for search on 'nextrun_date'
+
+        Args:
+            name (str): name of field to search on
+            clause (dict): search clause
+
+        Returns:
+            list of dict: search clause
+        """
+        return [('nextrun.date',) + tuple(clause[1:])]
+
     @classmethod
     def default_wfcheck(cls):
         """ False as default for wf-state 'checked'