From d9678ce98c606511ad06d989c1b1bd7f5a4ff39d Mon Sep 17 00:00:00 2001
From: Mark Paronyan <markparonian@gmail.com>
Date: Tue, 6 Oct 2026 16:11:38 +0300
Subject: [PATCH] refactor: derive update schemas with PartialUpdateModel

---
 gns3server/api/routes/compute/iou_nodes.py    |  2 -
 gns3server/api/routes/controller/nodes.py     |  5 --
 .../schemas/compute/atm_switch_nodes.py       |  5 +-
 gns3server/schemas/compute/cloud_nodes.py     |  7 ++-
 gns3server/schemas/compute/docker_nodes.py    |  8 ++-
 gns3server/schemas/compute/dynamips_nodes.py  |  5 +-
 .../schemas/compute/ethernet_hub_nodes.py     |  5 +-
 .../schemas/compute/ethernet_switch_nodes.py  |  5 +-
 .../compute/frame_relay_switch_nodes.py       |  5 +-
 gns3server/schemas/compute/iou_nodes.py       |  9 ++-
 gns3server/schemas/compute/nat_nodes.py       |  7 ++-
 gns3server/schemas/compute/qemu_nodes.py      |  7 ++-
 .../schemas/compute/virtualbox_nodes.py       |  8 ++-
 gns3server/schemas/compute/vmware_nodes.py    |  9 ++-
 gns3server/schemas/compute/vpcs_nodes.py      |  7 ++-
 gns3server/schemas/controller/links.py        |  3 +-
 gns3server/schemas/controller/nodes.py        |  5 +-
 gns3server/schemas/controller/projects.py     |  6 +-
 gns3server/schemas/controller/rbac.py         |  3 +-
 .../schemas/controller/templates/__init__.py  |  4 +-
 .../controller/templates/cloud_templates.py   |  5 +-
 .../controller/templates/docker_templates.py  |  5 +-
 .../templates/dynamips_templates.py           | 57 +++++++++++++-----
 .../templates/ethernet_hub_templates.py       |  5 +-
 .../templates/ethernet_switch_templates.py    |  5 +-
 .../controller/templates/iou_templates.py     |  5 +-
 .../controller/templates/qemu_templates.py    |  5 +-
 .../templates/virtualbox_templates.py         |  5 +-
 .../controller/templates/vmware_templates.py  |  5 +-
 .../controller/templates/vpcs_templates.py    |  5 +-
 gns3server/schemas/controller/users.py        |  3 +-
 gns3server/schemas/update.py                  | 60 +++++++++++++++++++
 tests/api/routes/controller/test_projects.py  | 22 +++++++
 tests/controller/test_update_schemas.py       | 44 ++++++++++++++
 34 files changed, 276 insertions(+), 70 deletions(-)
 create mode 100644 gns3server/schemas/update.py
 create mode 100644 tests/controller/test_update_schemas.py

diff --git a/gns3server/api/routes/compute/iou_nodes.py b/gns3server/api/routes/compute/iou_nodes.py
index 50600a734..d065895a3 100644
--- a/gns3server/api/routes/compute/iou_nodes.py
+++ b/gns3server/api/routes/compute/iou_nodes.py
@@ -105,8 +105,6 @@ async def update_iou_node(node_data: schemas.IOUUpdate, node: IOUVM = Depends(de
     data = jsonable_encoder(node_data, exclude_unset=True)
     for name, value in data.items():
         if hasattr(node, name) and getattr(node, name) != value:
-            if name == "application_id":
-                continue  # we must ignore this to avoid overwriting the application_id allocated by the IOU manager
             setattr(node, name, value)
 
     if node.use_default_iou_values:
diff --git a/gns3server/api/routes/controller/nodes.py b/gns3server/api/routes/controller/nodes.py
index 1395a60ea..8b22a9ce4 100644
--- a/gns3server/api/routes/controller/nodes.py
+++ b/gns3server/api/routes/controller/nodes.py
@@ -284,11 +284,6 @@ async def update_node(node_update: schemas.NodeUpdate, node: Node = Depends(dep_
 
     node_data = jsonable_encoder(node_update, exclude_unset=True)
 
-    # Ignore these because we only use them when creating a node
-    node_data.pop("node_id", None)
-    node_data.pop("node_type", None)
-    node_data.pop("compute_id", None)
-
     await node.update(**node_data)
     return node.asdict()
 
diff --git a/gns3server/schemas/compute/atm_switch_nodes.py b/gns3server/schemas/compute/atm_switch_nodes.py
index 72572d5ff..c3ba68014 100644
--- a/gns3server/schemas/compute/atm_switch_nodes.py
+++ b/gns3server/schemas/compute/atm_switch_nodes.py
@@ -20,6 +20,7 @@ from uuid import UUID
 from pydantic import BaseModel
 
 from ..common import NodeStatus
+from ..update import PartialUpdateModel
 
 
 class ATMSwitchBase(BaseModel):
@@ -41,11 +42,13 @@ class ATMSwitchCreate(ATMSwitchBase):
     node_id: Optional[UUID] = None
 
 
-class ATMSwitchUpdate(ATMSwitchBase):
+class ATMSwitchUpdate(PartialUpdateModel, ATMSwitchBase):
     """
     Properties to update an ATM switch node.
     """
 
+    update_excluded_fields = ("node_id",)
+
     name: Optional[str] = None
     node_id: Optional[UUID] = None
 
diff --git a/gns3server/schemas/compute/cloud_nodes.py b/gns3server/schemas/compute/cloud_nodes.py
index 5e8c0eb00..e2887bbec 100644
--- a/gns3server/schemas/compute/cloud_nodes.py
+++ b/gns3server/schemas/compute/cloud_nodes.py
@@ -21,6 +21,7 @@ from uuid import UUID
 from pydantic import BaseModel, Field
 
 from ..common import NodeStatus
+from ..update import PartialUpdateModel
 
 
 class HostInterfaceType(str, Enum):
@@ -148,12 +149,14 @@ class CloudCreate(CloudBase):
     name: str
 
 
-class CloudUpdate(CloudBase):
+class CloudUpdate(PartialUpdateModel, CloudBase):
     """
     Properties to update a cloud node.
     """
 
-    pass
+    update_excluded_fields = ("node_id",)
+
+    name: Optional[str] = None
 
 
 class Cloud(CloudBase):
diff --git a/gns3server/schemas/compute/docker_nodes.py b/gns3server/schemas/compute/docker_nodes.py
index 228238fe9..116627867 100644
--- a/gns3server/schemas/compute/docker_nodes.py
+++ b/gns3server/schemas/compute/docker_nodes.py
@@ -20,6 +20,7 @@ from uuid import UUID
 from pydantic import BaseModel, Field, field_validator
 
 from ..common import AuxType, ConsoleType, CustomAdapter, ExtraConfig, NodeStatus
+from ..update import PartialUpdateModel
 
 
 class DockerBase(BaseModel):
@@ -91,12 +92,15 @@ class DockerCreate(DockerBase):
     )
 
 
-class DockerUpdate(DockerBase):
+class DockerUpdate(PartialUpdateModel, DockerBase):
     """
     Properties to update a Docker node.
     """
 
-    pass
+    update_excluded_fields = ("node_id",)
+
+    name: Optional[str] = None
+    image: Optional[str] = Field(None, description="Docker image name")
 
 
 class Docker(DockerBase):
diff --git a/gns3server/schemas/compute/dynamips_nodes.py b/gns3server/schemas/compute/dynamips_nodes.py
index efb04a2b6..8d7aaed98 100644
--- a/gns3server/schemas/compute/dynamips_nodes.py
+++ b/gns3server/schemas/compute/dynamips_nodes.py
@@ -22,6 +22,7 @@ from uuid import UUID
 from pydantic import BaseModel, Field
 
 from ..common import NodeStatus
+from ..update import PartialUpdateModel
 
 
 class DynamipsPlatform(str, Enum):
@@ -180,11 +181,13 @@ class DynamipsCreate(DynamipsBase):
     ram: int = Field(..., gt=0, description="Amount of RAM in MB")
 
 
-class DynamipsUpdate(DynamipsBase):
+class DynamipsUpdate(PartialUpdateModel, DynamipsBase):
     """
     Properties to update a Dynamips node.
     """
 
+    update_excluded_fields = ("node_id", "dynamips_id")
+
     platform: Optional[DynamipsPlatform] = Field(None, description="Cisco router platform")
 
 
diff --git a/gns3server/schemas/compute/ethernet_hub_nodes.py b/gns3server/schemas/compute/ethernet_hub_nodes.py
index 07b2ae30d..cce06b5ca 100644
--- a/gns3server/schemas/compute/ethernet_hub_nodes.py
+++ b/gns3server/schemas/compute/ethernet_hub_nodes.py
@@ -20,6 +20,7 @@ from uuid import UUID
 from pydantic import BaseModel
 
 from ..common import NodeStatus
+from ..update import PartialUpdateModel
 
 
 class EthernetHubPort(BaseModel):
@@ -46,12 +47,12 @@ class EthernetHubCreate(EthernetHubBase):
     name: str
 
 
-class EthernetHubUpdate(EthernetHubBase):
+class EthernetHubUpdate(PartialUpdateModel, EthernetHubBase):
     """
     Properties to update an Ethernet hub node.
     """
 
-    pass
+    update_excluded_fields = ("node_id",)
 
 
 class EthernetHub(EthernetHubBase):
diff --git a/gns3server/schemas/compute/ethernet_switch_nodes.py b/gns3server/schemas/compute/ethernet_switch_nodes.py
index 2d3dbb154..41328ca2f 100644
--- a/gns3server/schemas/compute/ethernet_switch_nodes.py
+++ b/gns3server/schemas/compute/ethernet_switch_nodes.py
@@ -21,6 +21,7 @@ from uuid import UUID
 from pydantic import BaseModel, Field, model_validator
 
 from ..common import NodeStatus
+from ..update import PartialUpdateModel
 
 
 class EthernetSwitchPortType(str, Enum):
@@ -83,12 +84,12 @@ class EthernetSwitchCreate(EthernetSwitchBase):
     name: str
 
 
-class EthernetSwitchUpdate(EthernetSwitchBase):
+class EthernetSwitchUpdate(PartialUpdateModel, EthernetSwitchBase):
     """
     Properties to update an Ethernet hub node.
     """
 
-    pass
+    update_excluded_fields = ("node_id",)
 
 
 class EthernetSwitch(EthernetSwitchBase):
diff --git a/gns3server/schemas/compute/frame_relay_switch_nodes.py b/gns3server/schemas/compute/frame_relay_switch_nodes.py
index b44decf3d..3b0870f09 100644
--- a/gns3server/schemas/compute/frame_relay_switch_nodes.py
+++ b/gns3server/schemas/compute/frame_relay_switch_nodes.py
@@ -20,6 +20,7 @@ from uuid import UUID
 from pydantic import BaseModel
 
 from ..common import NodeStatus
+from ..update import PartialUpdateModel
 
 
 class FrameRelaySwitchBase(BaseModel):
@@ -41,11 +42,13 @@ class FrameRelaySwitchCreate(FrameRelaySwitchBase):
     node_id: Optional[UUID] = None
 
 
-class FrameRelaySwitchUpdate(FrameRelaySwitchBase):
+class FrameRelaySwitchUpdate(PartialUpdateModel, FrameRelaySwitchBase):
     """
     Properties to update an Frame Relay node.
     """
 
+    update_excluded_fields = ("node_id",)
+
     name: Optional[str] = None
     node_id: Optional[UUID] = None
 
diff --git a/gns3server/schemas/compute/iou_nodes.py b/gns3server/schemas/compute/iou_nodes.py
index 1b52bf29e..3fbae8312 100644
--- a/gns3server/schemas/compute/iou_nodes.py
+++ b/gns3server/schemas/compute/iou_nodes.py
@@ -20,6 +20,7 @@ from uuid import UUID
 from pydantic import BaseModel, Field
 
 from ..common import ConsoleType, NodeStatus
+from ..update import PartialUpdateModel
 
 
 class IOUBase(BaseModel):
@@ -58,12 +59,16 @@ class IOUCreate(IOUBase):
     application_id: int = Field(..., description="Application ID for running IOU executable")
 
 
-class IOUUpdate(IOUBase):
+class IOUUpdate(PartialUpdateModel, IOUBase):
     """
     Properties to update an IOU node.
     """
 
-    pass
+    update_excluded_fields = ("node_id", "application_id")
+
+    name: Optional[str] = None
+    path: Optional[str] = Field(None, description="IOU executable path")
+    application_id: Optional[int] = Field(None, description="Application ID for running IOU executable")
 
 
 class IOU(IOUBase):
diff --git a/gns3server/schemas/compute/nat_nodes.py b/gns3server/schemas/compute/nat_nodes.py
index 9e48918fd..27cdcfc0e 100644
--- a/gns3server/schemas/compute/nat_nodes.py
+++ b/gns3server/schemas/compute/nat_nodes.py
@@ -21,6 +21,7 @@ from uuid import UUID
 from pydantic import BaseModel, Field
 
 from ..common import NodeStatus
+from ..update import PartialUpdateModel
 
 
 class HostInterfaceType(str, Enum):
@@ -106,12 +107,14 @@ class NATCreate(NATBase):
     name: str
 
 
-class NATUpdate(NATBase):
+class NATUpdate(PartialUpdateModel, NATBase):
     """
     Properties to update a NAT node.
     """
 
-    pass
+    update_excluded_fields = ("node_id",)
+
+    name: Optional[str] = None
 
 
 class NAT(NATBase):
diff --git a/gns3server/schemas/compute/qemu_nodes.py b/gns3server/schemas/compute/qemu_nodes.py
index aa72106e2..6e26583e2 100644
--- a/gns3server/schemas/compute/qemu_nodes.py
+++ b/gns3server/schemas/compute/qemu_nodes.py
@@ -21,6 +21,7 @@ from uuid import UUID
 from pydantic import BaseModel, Field
 
 from ..common import CustomAdapter, NodeStatus
+from ..update import PartialUpdateModel
 
 
 class QemuPlatform(str, Enum):
@@ -227,12 +228,14 @@ class QemuCreate(QemuBase):
     )
 
 
-class QemuUpdate(QemuBase):
+class QemuUpdate(PartialUpdateModel, QemuBase):
     """
     Properties to update a Qemu node.
     """
 
-    pass
+    update_excluded_fields = ("node_id",)
+
+    name: Optional[str] = None
 
 
 class Qemu(QemuBase):
diff --git a/gns3server/schemas/compute/virtualbox_nodes.py b/gns3server/schemas/compute/virtualbox_nodes.py
index ef5258f4e..cd6b6b208 100644
--- a/gns3server/schemas/compute/virtualbox_nodes.py
+++ b/gns3server/schemas/compute/virtualbox_nodes.py
@@ -21,6 +21,7 @@ from uuid import UUID
 from pydantic import BaseModel, Field
 
 from ..common import CustomAdapter, NodeStatus
+from ..update import PartialUpdateModel
 
 
 class VirtualBoxConsoleType(str, Enum):
@@ -83,12 +84,15 @@ class VirtualBoxCreate(VirtualBoxBase):
     vmname: str = Field(..., description="VirtualBox VM name (in VirtualBox itself)")
 
 
-class VirtualBoxUpdate(VirtualBoxBase):
+class VirtualBoxUpdate(PartialUpdateModel, VirtualBoxBase):
     """
     Properties to update a VirtualBox node.
     """
 
-    pass
+    update_excluded_fields = ("node_id",)
+
+    name: Optional[str] = None
+    vmname: Optional[str] = None
 
 
 class VirtualBox(VirtualBoxBase):
diff --git a/gns3server/schemas/compute/vmware_nodes.py b/gns3server/schemas/compute/vmware_nodes.py
index b518eb6d1..35186e17e 100644
--- a/gns3server/schemas/compute/vmware_nodes.py
+++ b/gns3server/schemas/compute/vmware_nodes.py
@@ -21,6 +21,7 @@ from uuid import UUID
 from pydantic import BaseModel, Field
 
 from ..common import CustomAdapter, NodeStatus
+from ..update import PartialUpdateModel
 
 
 class VMwareConsoleType(str, Enum):
@@ -89,12 +90,16 @@ class VMwareCreate(VMwareBase):
     linked_clone: bool = Field(..., description="Whether the VM is a linked clone or not")
 
 
-class VMwareUpdate(VMwareBase):
+class VMwareUpdate(PartialUpdateModel, VMwareBase):
     """
     Properties to update a VMware node.
     """
 
-    pass
+    update_excluded_fields = ("node_id",)
+
+    name: Optional[str] = None
+    vmx_path: Optional[str] = None
+    linked_clone: Optional[bool] = None
 
 
 class VMware(VMwareBase):
diff --git a/gns3server/schemas/compute/vpcs_nodes.py b/gns3server/schemas/compute/vpcs_nodes.py
index c4a80cc08..bc1249a9e 100644
--- a/gns3server/schemas/compute/vpcs_nodes.py
+++ b/gns3server/schemas/compute/vpcs_nodes.py
@@ -21,6 +21,7 @@ from uuid import UUID
 from pydantic import BaseModel, Field
 
 from ..common import NodeStatus
+from ..update import PartialUpdateModel
 
 
 class ConsoleType(str, Enum):
@@ -54,12 +55,14 @@ class VPCSCreate(VPCSBase):
     name: str
 
 
-class VPCSUpdate(VPCSBase):
+class VPCSUpdate(PartialUpdateModel, VPCSBase):
     """
     Properties to update a VPCS node.
     """
 
-    pass
+    update_excluded_fields = ("node_id",)
+
+    name: Optional[str] = None
 
 
 class VPCS(VPCSBase):
diff --git a/gns3server/schemas/controller/links.py b/gns3server/schemas/controller/links.py
index 5dd8f1752..ccb85d424 100644
--- a/gns3server/schemas/controller/links.py
+++ b/gns3server/schemas/controller/links.py
@@ -20,6 +20,7 @@ from uuid import UUID, uuid4
 
 from pydantic import BaseModel, Field, field_validator
 
+from ..update import PartialUpdateModel
 from .labels import Label
 
 
@@ -73,7 +74,7 @@ class LinkCreate(LinkBase):
     nodes: List[LinkNode] = Field(..., min_length=2, max_length=2)
 
 
-class LinkUpdate(LinkBase):
+class LinkUpdate(PartialUpdateModel, LinkBase):
     pass
 
 
diff --git a/gns3server/schemas/controller/nodes.py b/gns3server/schemas/controller/nodes.py
index d4e9bb43d..6d731fc91 100644
--- a/gns3server/schemas/controller/nodes.py
+++ b/gns3server/schemas/controller/nodes.py
@@ -21,6 +21,7 @@ from uuid import UUID, uuid4
 from pydantic import BaseModel, Field
 
 from ..common import ConsoleType, CustomAdapter, NodeStatus
+from ..update import PartialUpdateModel
 from .labels import Label
 
 
@@ -169,12 +170,12 @@ class NodeCreate(NodeBase):
     node_id: UUID = Field(default_factory=uuid4)
 
 
-class NodeUpdate(NodeBase):
+class NodeUpdate(PartialUpdateModel, NodeBase):
     """
     Data to update a node.
     """
 
-    pass
+    update_excluded_fields = ("node_id", "compute_id", "node_type")
 
 
 class Node(NodeBase):
diff --git a/gns3server/schemas/controller/projects.py b/gns3server/schemas/controller/projects.py
index a7e3212b5..6354b7696 100644
--- a/gns3server/schemas/controller/projects.py
+++ b/gns3server/schemas/controller/projects.py
@@ -21,6 +21,8 @@ from uuid import UUID
 
 from pydantic import BaseModel, Field, HttpUrl
 
+from ..update import PartialUpdateModel
+
 
 class ProjectStatus(str, Enum):
     """
@@ -82,12 +84,12 @@ class ProjectDuplicate(ProjectBase):
     reset_mac_addresses: Optional[bool] = Field(False, description="Reset MAC addresses for this project")
 
 
-class ProjectUpdate(ProjectBase):
+class ProjectUpdate(PartialUpdateModel, ProjectBase):
     """
     Properties for project update.
     """
 
-    pass
+    update_excluded_fields = ("project_id", "path")
 
 
 class Project(ProjectBase):
diff --git a/gns3server/schemas/controller/rbac.py b/gns3server/schemas/controller/rbac.py
index 15ec07cab..e02a46180 100644
--- a/gns3server/schemas/controller/rbac.py
+++ b/gns3server/schemas/controller/rbac.py
@@ -70,7 +70,8 @@ class ACEUpdate(ACEBase):
     Properties to update an ACE.
     """
 
-    pass
+    propagate: Optional[bool] = None
+    allowed: Optional[bool] = None
 
 
 class ACE(DateTimeModelMixin, ACEBase):
diff --git a/gns3server/schemas/controller/templates/__init__.py b/gns3server/schemas/controller/templates/__init__.py
index da207e528..59519318a 100644
--- a/gns3server/schemas/controller/templates/__init__.py
+++ b/gns3server/schemas/controller/templates/__init__.py
@@ -20,6 +20,7 @@ from uuid import UUID
 
 from pydantic import BaseModel, ConfigDict, Field
 
+from ...update import PartialUpdateModel
 from ..base import DateTimeModelMixin
 from ..nodes import NodeType
 
@@ -98,7 +99,8 @@ class TemplateCreate(TemplateBase):
     model_config = ConfigDict(extra="allow")
 
 
-class TemplateUpdate(TemplateBase):
+class TemplateUpdate(PartialUpdateModel, TemplateBase):
+    update_excluded_fields = ("template_id",)
     model_config = ConfigDict(extra="allow")
 
 
diff --git a/gns3server/schemas/controller/templates/cloud_templates.py b/gns3server/schemas/controller/templates/cloud_templates.py
index 8f7ac6c13..8771731a7 100644
--- a/gns3server/schemas/controller/templates/cloud_templates.py
+++ b/gns3server/schemas/controller/templates/cloud_templates.py
@@ -21,6 +21,7 @@ from pydantic import Field
 
 from gns3server.schemas.compute.cloud_nodes import CloudConsoleType, EthernetPort, TAPPort, UDPPort
 
+from ...update import PartialUpdateModel
 from . import Category, TemplateBase
 
 
@@ -35,5 +36,5 @@ class CloudTemplate(TemplateBase):
     remote_console_http_path: Optional[str] = Field("/", description="Path of the remote web interface")
 
 
-class CloudTemplateUpdate(CloudTemplate):
-    pass
+class CloudTemplateUpdate(PartialUpdateModel, CloudTemplate):
+    update_excluded_fields = ("template_id",)
diff --git a/gns3server/schemas/controller/templates/docker_templates.py b/gns3server/schemas/controller/templates/docker_templates.py
index a96c97397..34c4d4339 100644
--- a/gns3server/schemas/controller/templates/docker_templates.py
+++ b/gns3server/schemas/controller/templates/docker_templates.py
@@ -20,6 +20,7 @@ from typing import List, Optional
 from pydantic import Field
 
 from ...common import AuxType, ConsoleType, CustomAdapter, ExtraConfig
+from ...update import PartialUpdateModel
 from . import Category, TemplateBase
 
 
@@ -63,5 +64,5 @@ class DockerTemplate(DockerTemplateBase):
     image: str = Field(..., description="Docker image name")
 
 
-class DockerTemplateUpdate(DockerTemplateBase):
-    pass
+class DockerTemplateUpdate(PartialUpdateModel, DockerTemplateBase):
+    update_excluded_fields = ("template_id",)
diff --git a/gns3server/schemas/controller/templates/dynamips_templates.py b/gns3server/schemas/controller/templates/dynamips_templates.py
index 77e3f853a..ac43ee13f 100644
--- a/gns3server/schemas/controller/templates/dynamips_templates.py
+++ b/gns3server/schemas/controller/templates/dynamips_templates.py
@@ -28,6 +28,7 @@ from gns3server.schemas.compute.dynamips_nodes import (
     DynamipsWics,
 )
 
+from ...update import PartialUpdateModel
 from . import Category, TemplateBase
 
 
@@ -73,7 +74,7 @@ class DynamipsTemplate(DynamipsTemplateBase):
     image: str = Field(..., description="Path to the IOS image")
 
 
-class C7200DynamipsTemplateUpdate(DynamipsTemplateBase):
+class C7200DynamipsTemplateBase(DynamipsTemplateBase):
     ram: Optional[int] = Field(512, gt=0, description="Amount of RAM in MB")
     nvram: Optional[int] = Field(512, gt=0, description="Amount of NVRAM in KB")
     npe: Optional[DynamipsNPE] = Field(DynamipsNPE.npe_400, description="NPE model")
@@ -81,31 +82,43 @@ class C7200DynamipsTemplateUpdate(DynamipsTemplateBase):
     sparsemem: Optional[bool] = Field(True, description="Sparse memory feature")
 
 
-class C7200DynamipsTemplate(C7200DynamipsTemplateUpdate):
+class C7200DynamipsTemplateUpdate(PartialUpdateModel, C7200DynamipsTemplateBase):
+    update_excluded_fields = ("template_id",)
+
+
+class C7200DynamipsTemplate(C7200DynamipsTemplateBase):
     platform: DynamipsPlatform = Field(..., description="Cisco router platform")
     image: str = Field(..., description="Path to the IOS image")
 
 
-class C3725DynamipsTemplateUpdate(DynamipsTemplateBase):
+class C3725DynamipsTemplateBase(DynamipsTemplateBase):
     ram: Optional[int] = Field(128, gt=0, description="Amount of RAM in MB")
     nvram: Optional[int] = Field(256, gt=0, description="Amount of NVRAM in KB")
     iomem: Optional[int] = Field(5, ge=0, le=100, description="I/O memory percentage")
     sparsemem: Optional[bool] = Field(True, description="Sparse memory feature")
 
 
-class C3725DynamipsTemplate(C3725DynamipsTemplateUpdate):
+class C3725DynamipsTemplateUpdate(PartialUpdateModel, C3725DynamipsTemplateBase):
+    update_excluded_fields = ("template_id",)
+
+
+class C3725DynamipsTemplate(C3725DynamipsTemplateBase):
     platform: DynamipsPlatform = Field(..., description="Cisco router platform")
     image: str = Field(..., description="Path to the IOS image")
 
 
-class C3745DynamipsTemplateUpdate(DynamipsTemplateBase):
+class C3745DynamipsTemplateBase(DynamipsTemplateBase):
     ram: Optional[int] = Field(256, gt=0, description="Amount of RAM in MB")
     nvram: Optional[int] = Field(256, gt=0, description="Amount of NVRAM in KB")
     iomem: Optional[int] = Field(5, ge=0, le=100, description="I/O memory percentage")
     sparsemem: Optional[bool] = Field(True, description="Sparse memory feature")
 
 
-class C3745DynamipsTemplate(C3745DynamipsTemplateUpdate):
+class C3745DynamipsTemplateUpdate(PartialUpdateModel, C3745DynamipsTemplateBase):
+    update_excluded_fields = ("template_id",)
+
+
+class C3745DynamipsTemplate(C3745DynamipsTemplateBase):
     platform: DynamipsPlatform = Field(..., description="Cisco router platform")
     image: str = Field(..., description="Path to the IOS image")
 
@@ -116,7 +129,7 @@ class C3600ChassisType(str, Enum):
     chassis_3660 = "3660"
 
 
-class C3600DynamipsTemplateUpdate(DynamipsTemplateBase):
+class C3600DynamipsTemplateBase(DynamipsTemplateBase):
     chassis: Optional[C3600ChassisType] = Field(C3600ChassisType.chassis_3660, description="Chassis type")
     ram: Optional[int] = Field(192, gt=0, description="Amount of RAM in MB")
     nvram: Optional[int] = Field(128, gt=0, description="Amount of NVRAM in KB")
@@ -124,19 +137,27 @@ class C3600DynamipsTemplateUpdate(DynamipsTemplateBase):
     sparsemem: Optional[bool] = Field(True, description="Sparse memory feature")
 
 
-class C3600DynamipsTemplate(C3600DynamipsTemplateUpdate):
+class C3600DynamipsTemplateUpdate(PartialUpdateModel, C3600DynamipsTemplateBase):
+    update_excluded_fields = ("template_id",)
+
+
+class C3600DynamipsTemplate(C3600DynamipsTemplateBase):
     platform: DynamipsPlatform = Field(..., description="Cisco router platform")
     image: str = Field(..., description="Path to the IOS image")
 
 
-class C2691DynamipsTemplateUpdate(DynamipsTemplateBase):
+class C2691DynamipsTemplateBase(DynamipsTemplateBase):
     ram: Optional[int] = Field(192, gt=0, description="Amount of RAM in MB")
     nvram: Optional[int] = Field(256, gt=0, description="Amount of NVRAM in KB")
     iomem: Optional[int] = Field(5, ge=0, le=100, description="I/O memory percentage")
     sparsemem: Optional[bool] = Field(True, description="Sparse memory feature")
 
 
-class C2691DynamipsTemplate(C2691DynamipsTemplateUpdate):
+class C2691DynamipsTemplateUpdate(PartialUpdateModel, C2691DynamipsTemplateBase):
+    update_excluded_fields = ("template_id",)
+
+
+class C2691DynamipsTemplate(C2691DynamipsTemplateBase):
     platform: DynamipsPlatform = Field(..., description="Cisco router platform")
     image: str = Field(..., description="Path to the IOS image")
 
@@ -153,7 +174,7 @@ class C2600ChassisType(str, Enum):
     chassis_2651xm = "2651XM"
 
 
-class C2600DynamipsTemplateUpdate(DynamipsTemplateBase):
+class C2600DynamipsTemplateBase(DynamipsTemplateBase):
     chassis: Optional[C2600ChassisType] = Field(C2600ChassisType.chassis_2651xm, description="Chassis type")
     ram: Optional[int] = Field(160, gt=0, description="Amount of RAM in MB")
     nvram: Optional[int] = Field(128, gt=0, description="Amount of NVRAM in KB")
@@ -161,7 +182,11 @@ class C2600DynamipsTemplateUpdate(DynamipsTemplateBase):
     sparsemem: Optional[bool] = Field(True, description="Sparse memory feature")
 
 
-class C2600DynamipsTemplate(C2600DynamipsTemplateUpdate):
+class C2600DynamipsTemplateUpdate(PartialUpdateModel, C2600DynamipsTemplateBase):
+    update_excluded_fields = ("template_id",)
+
+
+class C2600DynamipsTemplate(C2600DynamipsTemplateBase):
     platform: DynamipsPlatform = Field(..., description="Cisco router platform")
     image: str = Field(..., description="Path to the IOS image")
 
@@ -174,7 +199,7 @@ class C1700ChassisType(str, Enum):
     chassis_1760 = "1760"
 
 
-class C1700DynamipsTemplateUpdate(DynamipsTemplateBase):
+class C1700DynamipsTemplateBase(DynamipsTemplateBase):
     chassis: Optional[C1700ChassisType] = Field(C1700ChassisType.chassis_1760, description="Chassis type")
     ram: Optional[int] = Field(160, gt=0, description="Amount of RAM in MB")
     nvram: Optional[int] = Field(128, gt=0, description="Amount of NVRAM in KB")
@@ -182,6 +207,10 @@ class C1700DynamipsTemplateUpdate(DynamipsTemplateBase):
     sparsemem: Optional[bool] = Field(False, description="Sparse memory feature")
 
 
-class C1700DynamipsTemplate(C1700DynamipsTemplateUpdate):
+class C1700DynamipsTemplateUpdate(PartialUpdateModel, C1700DynamipsTemplateBase):
+    update_excluded_fields = ("template_id",)
+
+
+class C1700DynamipsTemplate(C1700DynamipsTemplateBase):
     platform: DynamipsPlatform = Field(..., description="Cisco router platform")
     image: str = Field(..., description="Path to the IOS image")
diff --git a/gns3server/schemas/controller/templates/ethernet_hub_templates.py b/gns3server/schemas/controller/templates/ethernet_hub_templates.py
index 8e273bc40..c17d5410b 100644
--- a/gns3server/schemas/controller/templates/ethernet_hub_templates.py
+++ b/gns3server/schemas/controller/templates/ethernet_hub_templates.py
@@ -20,6 +20,7 @@ from pydantic import Field
 
 from gns3server.schemas.compute.ethernet_hub_nodes import EthernetHubPort
 
+from ...update import PartialUpdateModel
 from . import Category, TemplateBase
 
 DEFAULT_PORTS = [
@@ -41,5 +42,5 @@ class EthernetHubTemplate(TemplateBase):
     ports_mapping: Optional[List[EthernetHubPort]] = Field(DEFAULT_PORTS, description="Ports")
 
 
-class EthernetHubTemplateUpdate(EthernetHubTemplate):
-    pass
+class EthernetHubTemplateUpdate(PartialUpdateModel, EthernetHubTemplate):
+    update_excluded_fields = ("template_id",)
diff --git a/gns3server/schemas/controller/templates/ethernet_switch_templates.py b/gns3server/schemas/controller/templates/ethernet_switch_templates.py
index ddcaa05d5..03d72e64f 100644
--- a/gns3server/schemas/controller/templates/ethernet_switch_templates.py
+++ b/gns3server/schemas/controller/templates/ethernet_switch_templates.py
@@ -22,6 +22,7 @@ from pydantic import Field
 
 from gns3server.schemas.compute.ethernet_switch_nodes import EthernetSwitchPort
 
+from ...update import PartialUpdateModel
 from . import Category, TemplateBase
 
 DEFAULT_PORTS = [
@@ -53,5 +54,5 @@ class EthernetSwitchTemplate(TemplateBase):
     console_type: Optional[ConsoleType] = Field(ConsoleType.none, description="Console type")
 
 
-class EthernetSwitchTemplateUpdate(EthernetSwitchTemplate):
-    pass
+class EthernetSwitchTemplateUpdate(PartialUpdateModel, EthernetSwitchTemplate):
+    update_excluded_fields = ("template_id",)
diff --git a/gns3server/schemas/controller/templates/iou_templates.py b/gns3server/schemas/controller/templates/iou_templates.py
index a67c6764a..3a6ed9efd 100644
--- a/gns3server/schemas/controller/templates/iou_templates.py
+++ b/gns3server/schemas/controller/templates/iou_templates.py
@@ -21,6 +21,7 @@ from pydantic import Field
 
 from gns3server.schemas.compute.iou_nodes import ConsoleType
 
+from ...update import PartialUpdateModel
 from . import Category, TemplateBase
 
 
@@ -50,5 +51,5 @@ class IOUTemplate(IOUTemplateBase):
     path: str = Field(..., description="Path of IOU executable")
 
 
-class IOUTemplateUpdate(IOUTemplateBase):
-    pass
+class IOUTemplateUpdate(PartialUpdateModel, IOUTemplateBase):
+    update_excluded_fields = ("template_id",)
diff --git a/gns3server/schemas/controller/templates/qemu_templates.py b/gns3server/schemas/controller/templates/qemu_templates.py
index e4f2421b5..6f6b29328 100644
--- a/gns3server/schemas/controller/templates/qemu_templates.py
+++ b/gns3server/schemas/controller/templates/qemu_templates.py
@@ -30,6 +30,7 @@ from gns3server.schemas.compute.qemu_nodes import (
     QemuProcessPriority,
 )
 
+from ...update import PartialUpdateModel
 from . import Category, TemplateBase
 
 
@@ -102,5 +103,5 @@ class QemuTemplate(TemplateBase):
     custom_adapters: Optional[List[CustomAdapter]] = Field(default_factory=list, description="Custom adapters")
 
 
-class QemuTemplateUpdate(QemuTemplate):
-    pass
+class QemuTemplateUpdate(PartialUpdateModel, QemuTemplate):
+    update_excluded_fields = ("template_id",)
diff --git a/gns3server/schemas/controller/templates/virtualbox_templates.py b/gns3server/schemas/controller/templates/virtualbox_templates.py
index 577f8ddc6..af0a7a30b 100644
--- a/gns3server/schemas/controller/templates/virtualbox_templates.py
+++ b/gns3server/schemas/controller/templates/virtualbox_templates.py
@@ -25,6 +25,7 @@ from gns3server.schemas.compute.virtualbox_nodes import (
     VirtualBoxOnCloseAction,
 )
 
+from ...update import PartialUpdateModel
 from . import Category, TemplateBase
 
 
@@ -65,5 +66,5 @@ class VirtualBoxTemplate(VirtualBoxTemplateBase):
     vmname: str = Field(..., description="VirtualBox VM name (in VirtualBox itself)")
 
 
-class VirtualBoxTemplateUpdate(VirtualBoxTemplateBase):
-    pass
+class VirtualBoxTemplateUpdate(PartialUpdateModel, VirtualBoxTemplateBase):
+    update_excluded_fields = ("template_id",)
diff --git a/gns3server/schemas/controller/templates/vmware_templates.py b/gns3server/schemas/controller/templates/vmware_templates.py
index 4a0012489..5318959ed 100644
--- a/gns3server/schemas/controller/templates/vmware_templates.py
+++ b/gns3server/schemas/controller/templates/vmware_templates.py
@@ -26,6 +26,7 @@ from gns3server.schemas.compute.vmware_nodes import (
     VMwareOnCloseAction,
 )
 
+from ...update import PartialUpdateModel
 from . import Category, TemplateBase
 
 
@@ -63,5 +64,5 @@ class VMwareTemplate(VMwareTemplateBase):
     vmx_path: str = Field(..., description="Path to the vmx file")
 
 
-class VMwareTemplateUpdate(VMwareTemplateBase):
-    pass
+class VMwareTemplateUpdate(PartialUpdateModel, VMwareTemplateBase):
+    update_excluded_fields = ("template_id",)
diff --git a/gns3server/schemas/controller/templates/vpcs_templates.py b/gns3server/schemas/controller/templates/vpcs_templates.py
index a9167afc1..ac8f6ce5d 100644
--- a/gns3server/schemas/controller/templates/vpcs_templates.py
+++ b/gns3server/schemas/controller/templates/vpcs_templates.py
@@ -21,6 +21,7 @@ from pydantic import Field
 
 from gns3server.schemas.compute.vpcs_nodes import ConsoleType
 
+from ...update import PartialUpdateModel
 from . import Category, TemplateBase
 
 
@@ -35,5 +36,5 @@ class VPCSTemplate(TemplateBase):
     )
 
 
-class VPCSTemplateUpdate(VPCSTemplate):
-    pass
+class VPCSTemplateUpdate(PartialUpdateModel, VPCSTemplate):
+    update_excluded_fields = ("template_id",)
diff --git a/gns3server/schemas/controller/users.py b/gns3server/schemas/controller/users.py
index 44593ae31..820a9faf6 100644
--- a/gns3server/schemas/controller/users.py
+++ b/gns3server/schemas/controller/users.py
@@ -20,6 +20,7 @@ from uuid import UUID
 
 from pydantic import BaseModel, ConfigDict, EmailStr, Field, SecretStr
 
+from ..update import PartialUpdateModel
 from .base import DateTimeModelMixin
 
 
@@ -43,7 +44,7 @@ class UserCreate(UserBase):
     password: SecretStr = Field(..., min_length=8, max_length=100)
 
 
-class UserUpdate(UserBase):
+class UserUpdate(PartialUpdateModel, UserBase):
     """
     Properties to update a user.
     """
diff --git a/gns3server/schemas/update.py b/gns3server/schemas/update.py
new file mode 100644
index 000000000..ac2654b44
--- /dev/null
+++ b/gns3server/schemas/update.py
@@ -0,0 +1,60 @@
+#
+# Copyright (C) 2020 GNS3 Technologies Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from typing import Any, ClassVar, Tuple
+
+from pydantic import BaseModel, ConfigDict, model_validator
+
+
+def _remove_defaults(schema: dict) -> None:
+    for property_schema in schema.get("properties", {}).values():
+        property_schema.pop("default", None)
+
+
+class PartialUpdateModel(BaseModel):
+    """
+    Turns a model into a partial update model: every field can be omitted, keeps its
+    type and constraints, and publishes no default. Dumps only include the fields that
+    were set. The fields listed in `update_excluded_fields` are dropped. Use it as the
+    first base of an update schema.
+    """
+
+    model_config = ConfigDict(json_schema_extra=_remove_defaults)
+
+    update_excluded_fields: ClassVar[Tuple[str, ...]] = ()
+
+    @model_validator(mode="before")
+    @classmethod
+    def _drop_excluded_fields(cls, data):
+        if isinstance(data, dict):
+            return {key: value for key, value in data.items() if key not in cls.update_excluded_fields}
+        return data
+
+    def model_dump(self, *, exclude_unset: bool = True, **kwargs: Any) -> dict[str, Any]:
+        return super().model_dump(exclude_unset=exclude_unset, **kwargs)
+
+    def model_dump_json(self, *, exclude_unset: bool = True, **kwargs: Any) -> str:
+        return super().model_dump_json(exclude_unset=exclude_unset, **kwargs)
+
+    @classmethod
+    def __pydantic_init_subclass__(cls, **kwargs) -> None:
+        super().__pydantic_init_subclass__(**kwargs)
+        for name in cls.update_excluded_fields:
+            cls.model_fields.pop(name, None)
+        for field in cls.model_fields.values():
+            field.default = None
+            field.default_factory = None
+        cls.model_rebuild(force=True)
diff --git a/tests/api/routes/controller/test_projects.py b/tests/api/routes/controller/test_projects.py
index d93905ca0..0d49b428e 100644
--- a/tests/api/routes/controller/test_projects.py
+++ b/tests/api/routes/controller/test_projects.py
@@ -117,6 +117,28 @@ class TestControllerProjectRoutes:
         assert response.status_code == status.HTTP_200_OK
         assert response.json()["name"] == "test2"
 
+    async def test_update_project_ignores_path_and_project_id(
+        self, app: FastAPI, client: AsyncClient, controller: Controller
+    ) -> None:
+
+        params = {"name": "test", "project_id": "10010203-0405-0607-0809-0a0b0c0d0e0f"}
+        response = await client.post(app.url_path_for("create_project"), json=params)
+        assert response.status_code == status.HTTP_201_CREATED
+        path = response.json()["path"]
+
+        params = {
+            "name": "test2",
+            "path": os.path.join(os.path.dirname(path), "other"),
+            "project_id": "20010203-0405-0607-0809-0a0b0c0d0e0f",
+        }
+        response = await client.put(
+            app.url_path_for("update_project", project_id="10010203-0405-0607-0809-0a0b0c0d0e0f"), json=params
+        )
+        assert response.status_code == status.HTTP_200_OK
+        assert response.json()["name"] == "test2"
+        assert response.json()["path"] == path
+        assert response.json()["project_id"] == "10010203-0405-0607-0809-0a0b0c0d0e0f"
+
     async def test_update_project_with_variables(
         self, app: FastAPI, client: AsyncClient, controller: Controller
     ) -> None:
diff --git a/tests/controller/test_update_schemas.py b/tests/controller/test_update_schemas.py
new file mode 100644
index 000000000..64945b1f8
--- /dev/null
+++ b/tests/controller/test_update_schemas.py
@@ -0,0 +1,44 @@
+import importlib
+import inspect
+import pkgutil
+
+import pytest
+from pydantic import BaseModel
+
+from gns3server import schemas
+from gns3server.schemas.update import PartialUpdateModel
+
+
+def _discover_update_models():
+    models = {}
+    for module_info in pkgutil.walk_packages(schemas.__path__, f"{schemas.__name__}."):
+        module = importlib.import_module(module_info.name)
+        for name, cls in vars(module).items():
+            if inspect.isclass(cls) and issubclass(cls, BaseModel) and name.endswith("Update"):
+                models[f"{cls.__module__}.{cls.__qualname__}"] = cls
+    return models
+
+
+UPDATE_MODELS = _discover_update_models()
+PARTIAL_UPDATE_MODELS = {k: v for k, v in UPDATE_MODELS.items() if issubclass(v, PartialUpdateModel)}
+
+
+@pytest.mark.parametrize("model", UPDATE_MODELS.values(), ids=UPDATE_MODELS.keys())
+def test_update_schema_publishes_no_defaults(model):
+    properties = model.model_json_schema()["properties"]
+    assert {name: p["default"] for name, p in properties.items() if p.get("default") is not None} == {}
+
+
+@pytest.mark.parametrize("model", PARTIAL_UPDATE_MODELS.values(), ids=PARTIAL_UPDATE_MODELS.keys())
+def test_partial_update_schema_drops_excluded_fields(model):
+    inherited = {field for base in model.__mro__[1:] if hasattr(base, "model_fields") for field in base.model_fields}
+    for field in model.update_excluded_fields:
+        assert field in inherited
+        assert field not in model.model_fields
+        assert model.model_validate({field: None}).model_dump(exclude_unset=True) == {}
+
+
+@pytest.mark.parametrize("model", PARTIAL_UPDATE_MODELS.values(), ids=PARTIAL_UPDATE_MODELS.keys())
+def test_partial_update_schema_requires_nothing(model):
+    assert model().model_dump() == {}
+    assert model().model_dump_json() == "{}"