Move line manual

modules/account/move.py

@@ -1013,7 +1013,9 @@ class Line(DescriptionOriginMixin, MoveLineMixin, ModelSQL, ModelView):
 
     journal = fields.Function(fields.Many2One('account.journal',"Journal"),'get_journal')
 
-    rate = fields.Function(fields.Numeric("Rate",digits=(1,6)),'get_rate')
+    rate = fields.Numeric("Rate", digits=(10, 6), states={
+            'readonly': _states['readonly'],
+            })
 
     del _states
 
@@ -1119,44 +1121,58 @@ class Line(DescriptionOriginMixin, MoveLineMixin, ModelSQL, ModelView):
     def get_rate(self,name=None):
         if self.amount_second_currency:
             return round((self.credit if self.credit else self.debit) / abs(self.amount_second_currency),6)
-    
-    @fields.depends(
-        'debit', 'credit',
-        'date','second_currency','amount_second_currency')
-    def on_change_amount_second_currency(self):
-        Currency = Pool().get('currency.currency')
-        Date = Pool().get('ir.date')
-        if self.second_currency != None and self.amount_second_currency != None and (not self.credit and not self.debit):
-            tdate = Date.today()
-            if self.date:
-                tdate = self.date
-            rate = Currency._get_rate([self.second_currency],tdate)
-            if rate:
-                rate = rate[self.second_currency.id]
-                if self.amount_second_currency > 0:
-                    self.debit = round(rate * self.amount_second_currency,2)
-                elif self.amount_second_currency > 0:
-                    self.credit = round(rate * abs(self.amount_second_currency),2)
-                self.rate = self.get_rate()
 
     @fields.depends(
         'debit', 'credit',
-        'date','second_currency','amount_second_currency')
+        'date','second_currency','amount_second_currency', 'rate',
+        'origin', 'move_origin', 'move', '_parent_move.origin')
     def on_change_second_currency(self):
+        if self._manual_rate_mode():
+            self.rate = self._get_second_currency_rate()
+            self._compute_amount_from_second_currency()
+
+    @fields.depends(
+        'debit', 'credit',
+        'date','second_currency','amount_second_currency', 'rate',
+        'origin', 'move_origin', 'move', '_parent_move.origin')
+    def on_change_rate(self):
+        if self._manual_rate_mode() and not self.debit and not self.credit:
+            self._compute_amount_from_second_currency()
+
+    def _manual_rate_mode(self):
+        if getattr(self, 'origin', None) or getattr(self, 'move_origin', None):
+            return False
+        move = getattr(self, 'move', None)
+        if move and getattr(move, 'origin', None):
+            return False
+        return True
+
+    def _get_second_currency_rate(self):
         Currency = Pool().get('currency.currency')
         Date = Pool().get('ir.date')
-        if self.second_currency != None and self.amount_second_currency != None and (not self.credit and not self.debit):
-            tdate = Date.today()
-            if self.date:
-                tdate = self.date
-            rate = Currency._get_rate([self.second_currency],tdate)
-            if rate:
-                rate = rate[self.second_currency.id]
+        if self.second_currency is None:
+            return None
+        tdate = Date.today()
+        if self.date:
+            tdate = self.date
+        rates = Currency._get_rate([self.second_currency], tdate)
+        return rates.get(self.second_currency.id) if rates else None
+
+    def _compute_amount_from_second_currency(self):
+        if self.second_currency is not None and self.amount_second_currency is not None:
+            if not self.rate:
+                self.rate = self._get_second_currency_rate()
+            if self.rate:
+                amount = round(self.rate * abs(self.amount_second_currency), 2)
                 if self.amount_second_currency > 0:
-                    self.debit = round(rate * self.amount_second_currency,2)
-                elif self.amount_second_currency > 0:
-                    self.credit = round(rate * abs(self.amount_second_currency),2)
-                self.rate = self.get_rate()
+                    self.debit = amount
+                    self.credit = Decimal(0)
+                elif self.amount_second_currency < 0:
+                    self.debit = Decimal(0)
+                    self.credit = amount
+                else:
+                    self.debit = Decimal(0)
+                    self.credit = Decimal(0)
     
     @fields.depends(
         'move', 'debit', 'credit',
@@ -1223,15 +1239,25 @@ class Line(DescriptionOriginMixin, MoveLineMixin, ModelSQL, ModelView):
         if self.debit:
             self.credit = Decimal(0)
         self._amount_second_currency_sign()
+        self.rate = self.get_rate()
 
     @fields.depends('debit', 'credit', 'amount_second_currency')
     def on_change_credit(self):
         if self.credit:
             self.debit = Decimal(0)
         self._amount_second_currency_sign()
+        self.rate = self.get_rate()
 
-    @fields.depends('amount_second_currency', 'debit', 'credit')
+    @fields.depends(
+        'amount_second_currency', 'debit', 'credit', 'date', 'second_currency',
+        'rate', 'origin', 'move_origin', 'move', '_parent_move.origin')
     def on_change_amount_second_currency(self):
+        if self._manual_rate_mode():
+            if not self.rate:
+                self.rate = self._get_second_currency_rate()
+            self._compute_amount_from_second_currency()
+        elif not self.rate:
+            self.rate = self.get_rate()
         self._amount_second_currency_sign()
 
     def _amount_second_currency_sign(self):