add super m2o, o2m

app_common/models/fields.py

@@ -0,0 +1,48 @@
+# -*- coding: utf-8 -*-
+
+from odoo.fields import Field, resolve_mro
+from odoo.fields import Selection as oldSelection
+from odoo.tools import merge_sequences
+import logging
+
+_logger = logging.getLogger(__name__)
+
+class Selection(Field):
+    def _setup_attrs_app(self, model, name):
+        Field._setup_attrs(self, model, name)
+
+        # determine selection (applying 'selection_add' extensions)
+        values = None
+        labels = {}
+
+        for field in reversed(resolve_mro(model, name, self._can_setup_from)):
+            # We cannot use field.selection or field.selection_add here
+            # because those attributes are overridden by ``_setup_attrs``.
+            if 'selection' in field.args:
+                selection = field.args['selection']
+                if isinstance(selection, list):
+                    if (
+                        values is not None
+                        and values != [kv[0] for kv in selection]
+                    ):
+                        _logger.debug("%s: selection=%r overrides existing selection; use selection_add instead", self, selection)
+                    values = [kv[0] for kv in selection]
+                    labels = dict(selection)
+                else:
+                    self.selection = selection
+                    values = None
+                    labels = {}
+
+            if 'selection_add' in field.args:
+                selection_add = field.args['selection_add']
+                assert isinstance(selection_add, list), \
+                    "%s: selection_add=%r must be a list" % (self, selection_add)
+                assert values is not None, \
+                    "%s: selection_add=%r on non-list selection %r" % (self, selection_add, self.selection)
+                values = merge_sequences(values, [kv[0] for kv in selection_add])
+                labels.update(kv for kv in selection_add if len(kv) == 2)
+
+        if values is not None:
+            self.selection = [(value, labels[value]) for value in values]
+
+oldSelection._setup_attrs = Selection._setup_attrs_app