Fix: Resolve workflow_node_execution primary key conflicts with UUID v7 (#24643)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

api/tests/unit_tests/repositories/workflow_node_execution/test_sqlalchemy_repository.py

@@ -86,6 +86,8 @@ def test_save(repository, session):
     session_obj, _ = session
     # Create a mock execution
     execution = MagicMock(spec=WorkflowNodeExecutionModel)
+    execution.id = "test-id"
+    execution.node_execution_id = "test-node-execution-id"
     execution.tenant_id = None
     execution.app_id = None
     execution.inputs = None
@@ -95,7 +97,13 @@ def test_save(repository, session):
 
     # Mock the to_db_model method to return the execution itself
     # This simulates the behavior of setting tenant_id and app_id
-    repository.to_db_model = MagicMock(return_value=execution)
+    db_model = MagicMock(spec=WorkflowNodeExecutionModel)
+    db_model.id = "test-id"
+    db_model.node_execution_id = "test-node-execution-id"
+    repository.to_db_model = MagicMock(return_value=db_model)
+
+    # Mock session.get to return None (no existing record)
+    session_obj.get.return_value = None
 
     # Call save method
     repository.save(execution)
@@ -103,8 +111,14 @@ def test_save(repository, session):
     # Assert to_db_model was called with the execution
     repository.to_db_model.assert_called_once_with(execution)
 
-    # Assert session.merge was called (now using merge for both save and update)
-    session_obj.merge.assert_called_once_with(execution)
+    # Assert session.get was called to check for existing record
+    session_obj.get.assert_called_once_with(WorkflowNodeExecutionModel, db_model.id)
+
+    # Assert session.add was called for new record
+    session_obj.add.assert_called_once_with(db_model)
+
+    # Assert session.commit was called
+    session_obj.commit.assert_called_once()
 
 
 def test_save_with_existing_tenant_id(repository, session):
@@ -112,6 +126,8 @@ def test_save_with_existing_tenant_id(repository, session):
     session_obj, _ = session
     # Create a mock execution with existing tenant_id
     execution = MagicMock(spec=WorkflowNodeExecutionModel)
+    execution.id = "existing-id"
+    execution.node_execution_id = "existing-node-execution-id"
     execution.tenant_id = "existing-tenant"
     execution.app_id = None
     execution.inputs = None
@@ -121,20 +137,39 @@ def test_save_with_existing_tenant_id(repository, session):
 
     # Create a modified execution that will be returned by _to_db_model
     modified_execution = MagicMock(spec=WorkflowNodeExecutionModel)
+    modified_execution.id = "existing-id"
+    modified_execution.node_execution_id = "existing-node-execution-id"
     modified_execution.tenant_id = "existing-tenant"  # Tenant ID should not change
     modified_execution.app_id = repository._app_id  # App ID should be set
+    # Create a dictionary to simulate __dict__ for updating attributes
+    modified_execution.__dict__ = {
+        "id": "existing-id",
+        "node_execution_id": "existing-node-execution-id",
+        "tenant_id": "existing-tenant",
+        "app_id": repository._app_id,
+    }
 
     # Mock the to_db_model method to return the modified execution
     repository.to_db_model = MagicMock(return_value=modified_execution)
 
+    # Mock session.get to return an existing record
+    existing_model = MagicMock(spec=WorkflowNodeExecutionModel)
+    session_obj.get.return_value = existing_model
+
     # Call save method
     repository.save(execution)
 
     # Assert to_db_model was called with the execution
     repository.to_db_model.assert_called_once_with(execution)
 
-    # Assert session.merge was called with the modified execution (now using merge for both save and update)
-    session_obj.merge.assert_called_once_with(modified_execution)
+    # Assert session.get was called to check for existing record
+    session_obj.get.assert_called_once_with(WorkflowNodeExecutionModel, modified_execution.id)
+
+    # Assert session.add was NOT called since we're updating existing
+    session_obj.add.assert_not_called()
+
+    # Assert session.commit was called
+    session_obj.commit.assert_called_once()
 
 
 def test_get_by_workflow_run(repository, session, mocker: MockerFixture):