Finish grid deletion

src/myfasthtml/controls/DataGridsManager.py

@@ -72,7 +72,7 @@ class Commands(BaseCommands):
                    self._owner,
                    self._owner.select_document,
                    key="SelectNode")
-
+  
   def delete_grid(self):
     return Command("DeleteGrid",
                    "Delete grid",
@@ -248,7 +248,7 @@ class DataGridsManager(SingleInstance, DatagridMetadataProvider):
     except StopIteration:
       # the selected node is not a document (it's a folder)
       return None
-
+  
   def delete_grid(self, node_id):
     """
     Delete a grid and all its associated resources.
@@ -266,37 +266,37 @@ class DataGridsManager(SingleInstance, DatagridMetadataProvider):
     if document_id is None:
       # Node is a folder, not a document - nothing to clean up
       return None
-
+    
+    res = []
     try:
       # Find the document
       document = next(filter(lambda x: x.document_id == document_id, self._state.elements))
-
+      
       # Get the DataGrid instance
       dg = DataGrid(self, _id=document.datagrid_id)
-
+      
       # Close the tab
-      self._tabs_manager.close_tab(document.tab_id)
-
+      close_tab_res = self._tabs_manager.close_tab(document.tab_id)
+      res.append(close_tab_res)
+      
       # Remove from registry
       self._registry.remove(document.datagrid_id)
-
+      
       # Clean up DataGrid (delete DBEngine entries)
       dg.delete()
-
+      
       # Remove from InstancesManager
       InstancesManager.remove(self._session, document.datagrid_id)
-
+      
       # Remove DocumentDefinition from state
       self._state.elements = [d for d in self._state.elements if d.document_id != document_id]
       self._state.save()
-
+    
     except StopIteration:
       # Document not found - already deleted or invalid state
       pass
-
-    # Note: We do NOT call tree._delete_node() here because TreeView will do it
-    # automatically after this "before" bound command completes
-    return None
+    
+    return res
   
   def create_tab_content(self, tab_id):
     """

src/myfasthtml/core/dbmanager.py

@@ -23,6 +23,9 @@ class DbManager(SingleInstance):
   def load(self, entry):
     return self.db.load(self.get_tenant(), entry)
   
+  def delete(self, entry):
+    self.db.delete(self.get_tenant(), self.get_user(), entry)
+  
   def exists_entry(self, entry):
     return self.db.exists(self.get_tenant(), entry)
   
@@ -171,6 +174,9 @@ class DbObject:
   def save(self):
     self._save_self()
   
+  def delete(self):
+    self._db_manager.delete(self._name)
+  
   def reload(self):
     self._reload_self()
   

src/myfasthtml/core/instances.py

@@ -260,6 +260,16 @@ class InstancesManager:
     logger.debug(f"Creating new component {component_id} of type {real_component_type}")
     return cls(parent, _id=component_id)
   
+  @staticmethod
+  def remove(session, component_id: str):
+    session_id = InstancesManager.get_session_id(session)
+    key = (session_id, component_id)
+    if key not in InstancesManager.instances:
+      return False
+    
+    del InstancesManager.instances[key]
+    return True
+  
   @staticmethod
   def get_session_id(session):
     if isinstance(session, str):