tables_db_create_url_column
Add a URL column to an Appwrite database table to store web addresses, with options for required fields, default values, and array storage.
Instructions
Create a URL column.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| database_id | Yes | Database ID. | |
| table_id | Yes | Table ID. | |
| key | Yes | Column Key. | |
| required | Yes | Is column required? | |
| default | No | Default value for column when not provided. Cannot be set when column is required. | |
| array | No | Is column an array? |
Implementation Reference
- src/mcp_server_appwrite/server.py:70-72 (registration)Registers the TablesDB service from Appwrite under the 'tables_db' namespace. This enables all public methods of TablesDB (including create_url_column) to be exposed as MCP tools with names prefixed by 'tables_db_', e.g., 'tables_db_create_url_column'.if args.tables_db: tools_manager.register_service(Service(TablesDB(client), "tables_db")) if args.users:
- src/mcp_server_appwrite/server.py:62-95 (registration)The register_services function conditionally registers the TablesDB service based on CLI arguments or by default.def register_services(args): # If --all is specified, enable all services if args.all: args.tables_db = args.users = args.teams = args.storage = True args.functions = args.messaging = args.locale = args.avatars = True args.sites = True # Register services based on CLI arguments if args.tables_db: tools_manager.register_service(Service(TablesDB(client), "tables_db")) if args.users: tools_manager.register_service(Service(Users(client), "users")) if args.teams: tools_manager.register_service(Service(Teams(client), "teams")) if args.storage: tools_manager.register_service(Service(Storage(client), "storage")) if args.functions: tools_manager.register_service(Service(Functions(client), "functions")) if args.messaging: tools_manager.register_service(Service(Messaging(client), "messaging")) if args.locale: tools_manager.register_service(Service(Locale(client), "locale")) if args.avatars: tools_manager.register_service(Service(Avatars(client), "avatars")) if args.sites: tools_manager.register_service(Service(Sites(client), "sites")) if args.databases: tools_manager.register_service(Service(Databases(client), "databases")) # If no services were specified, enable tables_db by default if not any([args.databases, args.tables_db, args.users, args.teams, args.storage, args.functions, args.messaging, args.locale, args.avatars, args.sites]): tools_manager.register_service(Service(TablesDB(client), "tables_db"))
- Generic MCP tool execution handler. For 'tables_db_create_url_column', it retrieves the bound TablesDB.create_url_column method from the registry and executes it with the provided arguments.async def handle_call_tool( name: str, arguments: dict | None ) -> list[types.TextContent | types.ImageContent | types.EmbeddedResource]: try: tool_info = tools_manager.get_tool(name) if not tool_info: raise McpError(f"Tool {name} not found") bound_method = tool_info["function"] result = bound_method(**(arguments or {})) if hasattr(result, 'to_dict'): result_dict = result.to_dict() return [types.TextContent(type="text", text=str(result_dict))] return [types.TextContent(type="text", text=str(result))] except AppwriteException as e: return [types.TextContent(type="text", text=f"Appwrite Error: {str(e)}")] except Exception as e: return [types.TextContent(type="text", text=f"Error: {str(e)}")]
- Dynamically generates the tool schema (inputSchema) from method type hints and docstrings, sets tool name as '{service_name}_{method_name}', and binds the handler function (service.method). This creates the 'tables_db_create_url_column' tool definition including its schema.def list_tools(self) -> Dict[str, Dict]: """Lists all available tools for this service""" tools = {} for name, func in inspect.getmembers(self.service, predicate=inspect.ismethod): if name.startswith('_'): # Skip private methods continue original_func = func.__func__ # Skip if not from the service's module if original_func.__module__ != self.service.__class__.__module__: continue # Get the overridden name if it exists tool_name = self._method_name_overrides.get(name, f"{self.service_name}_{name}") docstring = parse(original_func.__doc__) signature = inspect.signature(original_func) type_hints = get_type_hints(original_func) properties = {} required = [] for param_name, param in signature.parameters.items(): if param_name == 'self': continue param_type = type_hints.get(param_name, str) properties[param_name] = self.python_type_to_json_schema(param_type) properties[param_name]["description"] = f"Parameter '{param_name}'" for doc_param in docstring.params: if doc_param.arg_name == param_name: properties[param_name]["description"] = doc_param.description if param.default is param.empty: required.append(param_name) tool_definition = Tool( name=tool_name, description=f"{docstring.short_description or "No description available"}", inputSchema={ "type": "object", "properties": properties, "required": required } ) tools[tool_name] = { "definition": tool_definition, "function": func } return tools
- Method to override tool names if needed. Returns empty dict, so default naming '{service_name}_{method_name}' is used for 'create_url_column'.def get_method_name_overrides(self) -> Dict[str, str]: """ Override this method to provide method name mappings. Returns a dictionary where: - key: original method name - value: new method name to be used """ return {}