Utilities & Auxiliaries

We provided some auxiliary functions for Flask-DataTables.

• render_macro() renders a given macro from the Jinja templates

• prepare_response() is the default built-in method for factory parameter of Model.search

• parse_request() is the utility function to parse DataTables client-side query parameters from the URL

flask_datatables.utils.render_macro(template_name_or_list, macro, **context)

Evaluates and renders a macro from the template.

Parameters:

• template_name_or_list (Union[str, List[str]]) – The name of the template to be rendered, or an iterable with template names the first one existing will be rendered.

• macro (str) – The name of macro to be called.

• context (Any) –

Keyword Arguments:

**context – The variables that should be available in the context of the template.

Return type:

str

Returns:

The rendered macro.

flask_datatables.utils.prepare_response(template)

Prepare response object data.

The function returns a wrapper function to use the template as a factory to render HTML response blocks. The Jinja templates should have macro blocks for each target field named after render_{field_name} and takes only one argument record as the selected data model record.

Parameters:

template (Union[str, List[str]]) – Path to the macro template.

Return type:

Callable[[Model], ObjectData]

Returns:

Prepared response object data.

See also

See flask_datatables.utils.render_macro() for more information.

flask_datatables.utils.parse_request(args=None)

Parse flask.request.args as Query.

Parameters:

args (Optional[ImmutableMultiDict]) – Original request arguments. The default value is inferred from request.args.

Return type:

Query

Returns:

Parsed query dictionary.