Use IronicObject._from_db_object_list method

This cleans up the code so that wherever an object needs to
convert a list of database entities to a list of the objects,
IronicObject._from_db_object_list() is used.

Individual object's _from_db_object_list() methods are removed.

Change-Id: Ic9d16b30da0067606804ad6b5997af4bc864ad93

ironic/objects/chassis.py

@@ -111,8 +111,7 @@ class Chassis(base.IronicObject, object_base.VersionedObjectDictCompat):
                                                 marker=marker,
                                                 sort_key=sort_key,
                                                 sort_dir=sort_dir)
-        return [Chassis._from_db_object(cls(context), obj)
+        return cls._from_db_object_list(context, db_chassis)
-                for obj in db_chassis]
 
     # NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
     # methods can be used in the future to replace current explicit RPC calls.

ironic/objects/node.py

@@ -251,7 +251,7 @@ class Node(base.IronicObject, object_base.VersionedObjectDictCompat):
         db_nodes = cls.dbapi.get_node_list(filters=filters, limit=limit,
                                            marker=marker, sort_key=sort_key,
                                            sort_dir=sort_dir)
-        return [Node._from_db_object(cls(context), obj) for obj in db_nodes]
+        return cls._from_db_object_list(context, db_nodes)
 
     # NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
     # methods can be used in the future to replace current explicit RPC calls.

ironic/objects/port.py

@@ -52,11 +52,6 @@ class Port(base.IronicObject, object_base.VersionedObjectDictCompat):
         'internal_info': object_fields.FlexibleDictField(nullable=True),
     }
 
-    @staticmethod
-    def _from_db_object_list(db_objects, cls, context):
-        """Converts a list of database entities to a list of formal objects."""
-        return [Port._from_db_object(cls(context), obj) for obj in db_objects]
-
     # NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
     # methods can be used in the future to replace current explicit RPC calls.
     # Implications of calling new remote procedures should be thought through.
@@ -157,7 +152,7 @@ class Port(base.IronicObject, object_base.VersionedObjectDictCompat):
                                            marker=marker,
                                            sort_key=sort_key,
                                            sort_dir=sort_dir)
-        return Port._from_db_object_list(db_ports, cls, context)
+        return cls._from_db_object_list(context, db_ports)
 
     # NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
     # methods can be used in the future to replace current explicit RPC calls.
@@ -181,7 +176,7 @@ class Port(base.IronicObject, object_base.VersionedObjectDictCompat):
                                                   marker=marker,
                                                   sort_key=sort_key,
                                                   sort_dir=sort_dir)
-        return Port._from_db_object_list(db_ports, cls, context)
+        return cls._from_db_object_list(context, db_ports)
 
     # NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
     # methods can be used in the future to replace current explicit RPC calls.
@@ -206,7 +201,7 @@ class Port(base.IronicObject, object_base.VersionedObjectDictCompat):
                                                        marker=marker,
                                                        sort_key=sort_key,
                                                        sort_dir=sort_dir)
-        return Port._from_db_object_list(db_ports, cls, context)
+        return cls._from_db_object_list(context, db_ports)
 
     # NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
     # methods can be used in the future to replace current explicit RPC calls.

ironic/objects/portgroup.py

@@ -45,12 +45,6 @@ class Portgroup(base.IronicObject, object_base.VersionedObjectDictCompat):
         'standalone_ports_supported': object_fields.BooleanField(),
     }
 
-    @staticmethod
-    def _from_db_object_list(db_objects, cls, context):
-        """Converts a list of database entities to a list of formal objects."""
-        return [Portgroup._from_db_object(cls(context), obj) for obj in
-                db_objects]
-
     # NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
     # methods can be used in the future to replace current explicit RPC calls.
     # Implications of calling new remote procedures should be thought through.
@@ -170,7 +164,7 @@ class Portgroup(base.IronicObject, object_base.VersionedObjectDictCompat):
                                                      marker=marker,
                                                      sort_key=sort_key,
                                                      sort_dir=sort_dir)
-        return Portgroup._from_db_object_list(db_portgroups, cls, context)
+        return cls._from_db_object_list(context, db_portgroups)
 
     # NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
     # methods can be used in the future to replace current explicit RPC calls.
@@ -196,7 +190,7 @@ class Portgroup(base.IronicObject, object_base.VersionedObjectDictCompat):
                                                             marker=marker,
                                                             sort_key=sort_key,
                                                             sort_dir=sort_dir)
-        return Portgroup._from_db_object_list(db_portgroups, cls, context)
+        return cls._from_db_object_list(context, db_portgroups)
 
     # NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
     # methods can be used in the future to replace current explicit RPC calls.

ironic/objects/volume_connector.py

@@ -39,12 +39,6 @@ class VolumeConnector(base.IronicObject,
         'extra': object_fields.FlexibleDictField(nullable=True),
     }
 
-    @staticmethod
-    def _from_db_object_list(db_objects, cls, context):
-        """Convert a list of database entities to a list of formal objects."""
-        return [VolumeConnector._from_db_object(cls(context), obj)
-                for obj in db_objects]
-
     # NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
     # methods can be used in the future to replace current explicit RPC calls.
     # Implications of calling new remote procedures should be thought through.
@@ -126,8 +120,7 @@ class VolumeConnector(base.IronicObject,
                                                             marker=marker,
                                                             sort_key=sort_key,
                                                             sort_dir=sort_dir)
-        return VolumeConnector._from_db_object_list(db_connectors,
+        return cls._from_db_object_list(context, db_connectors)
-                                                    cls, context)
 
     # NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
     # methods can be used in the future to replace current explicit RPC calls.
@@ -153,8 +146,7 @@ class VolumeConnector(base.IronicObject,
             marker=marker,
             sort_key=sort_key,
             sort_dir=sort_dir)
-        return VolumeConnector._from_db_object_list(db_connectors,
+        return cls._from_db_object_list(context, db_connectors)
-                                                    cls, context)
 
     # NOTE(xek): We don't want to enable RPC on this call just yet. Remotable
     # methods can be used in the future to replace current explicit RPC calls.