Add group names added by payment modules to help of statement rule

modules/account_payment/__init__.py

@@ -29,6 +29,7 @@ def register():
         account.StatementLine,
         module='account_payment', type_='model', depends=['account_statement'])
     Pool.register(
+        account.StatementRule,
         account.StatementRuleLine,
         module='account_payment', type_='model',
         depends=['account_statement_rule'])

modules/account_payment/account.py

@@ -896,6 +896,15 @@ class StatementLine(metaclass=PoolMeta):
             yield self.payment.kind, [self.payment]
 
 
+class StatementRule(metaclass=PoolMeta):
+    __name__ = 'account.statement.rule'
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        cls.description.help += "\n'payment'"
+
+
 class StatementRuleLine(metaclass=PoolMeta):
     __name__ = 'account.statement.rule.line'
 

modules/account_payment_clearing/__init__.py

@@ -24,6 +24,7 @@ def register():
         module='account_payment_clearing', type_='model',
         depends=['account_statement'])
     Pool.register(
+        statement.StatementRule,
         statement.StatementRuleLine,
         module='account_payment_clearing', type_='model',
         depends=['account_statement_rule'])

modules/account_payment_clearing/statement.py

@@ -178,6 +178,15 @@ class StatementLine(metaclass=PoolMeta):
                 and l.payment.clearing_move.state == 'draft'])
 
 
+class StatementRule(metaclass=PoolMeta):
+    __name__ = 'account.statement.rule'
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        cls.description.help += "\n'payment_group'"
+
+
 class StatementRuleLine(metaclass=PoolMeta):
     __name__ = 'account.statement.rule.line'
 

modules/account_statement_rule/account.py

@@ -94,7 +94,9 @@ class StatementRule(sequence_ordered(), ModelSQL, ModelView):
     description = fields.Char("Description",
         help="The regular expression the description is searched with.\n"
         "It may define the groups named:\n"
-        "'party', 'bank_account', 'invoice'.")
+        "'party'\n"
+        "'bank_account'\n"
+        "'invoice'")
     information_rules = fields.One2Many(
         'account.statement.rule.information', 'rule', "Information Rules")