Add get_eval function to have simple value for expr eval in on_change,

states, ...
Add signal record changed when removing model from group

tryton/gui/window/view_form/model/field.py

@@ -70,6 +70,10 @@ class CharField(object):
     def get(self, model, check_load=True, readonly=True, modified=False):
         return model.value.get(self.name, False) or False
 
+    def get_eval(self, model, check_load=True):
+        return self.get(model, check_load=check_load, readonly=True,
+                modified=False)
+
     def set_client(self, model, value, test_state=True, force_change=False):
         internal = model.value.get(self.name, False)
         self.set(model, value, test_state)
@@ -278,6 +282,10 @@ class M2MField(CharField):
     def get(self, model, check_load=True, readonly=True, modified=False):
         return [('set', model.value[self.name] or [])]
 
+    def get_eval(self, model, check_load=True):
+        return self.get(model, check_load=check_load, readonly=True,
+                modified=False)[0][1]
+
     def get_client(self, model):
         return model.value[self.name] or []
 
@@ -346,6 +354,14 @@ class O2MField(CharField):
             result.append(('delete', model.value[self.name].model_deleted))
         return result
 
+    def get_eval(self, model, check_load=True):
+        result = []
+        if not model.value[self.name]:
+            return []
+        for model2 in model.value[self.name].models:
+            result.append(model2.get_eval(check_load=check_load))
+        return result
+
     def set(self, model, value, test_state=False, modified=False):
         from group import ModelRecordGroup
         mod = ModelRecordGroup(self.attrs['relation'], {}, model.window,

tryton/gui/window/view_form/model/group.py

@@ -285,7 +285,7 @@ class ModelRecordGroup(SignalEvent):
             return None
         return self.models[self.current_idx]
 
-    def remove(self, model, remove=False):
+    def remove(self, model, remove=False, modified=True):
         idx = self.models.index(model)
         if self.models[idx].id:
             if remove:
@@ -294,7 +294,10 @@ class ModelRecordGroup(SignalEvent):
                 self.model_deleted.append(self.models[idx].id)
         if model.parent:
             model.parent.modified = True
+        if modified:
+            model.modified = True
         self.models.remove(self.models[idx])
+        model.signal('record-changed', model.parent)
 
     def add_fields_custom(self, fields, models):
         to_add = []

tryton/gui/window/view_form/model/record.py

@@ -123,6 +123,15 @@ class ModelRecord(SignalEvent):
             value['id'] = self.id
         return value
 
+    def get_eval(self, check_load=True):
+        if check_load:
+            self._check_load()
+        value = {}
+        for name, mfield in self.mgroup.mfields.items():
+            value[name] = mfield.get_eval(self, check_load=check_load)
+        value['id'] = self.id
+        return value
+
     def cancel(self):
         self._loaded = False
         self.reload()
@@ -271,7 +280,7 @@ class ModelRecord(SignalEvent):
             self._check_load()
         ctx = rpc.CONTEXT.copy()
         for name, mfield in self.mgroup.mfields.items():
-            ctx[name] = mfield.get(self, check_load=check_load)
+            ctx[name] = mfield.get_eval(self, check_load=check_load)
 
         ctx['current_date'] = datetime.datetime.today()
         ctx['time'] = time