v0.0.8: component_callbacks and self.Input, self.Output

Version 0.0.8:

Breaking Changes

• component callbacks should now be declared in def component_callbacks(self, app) instead of _register_callbacks(self, app). Although for now the old _register_callbacks() will still work.

New Features

• added .id(), .Input(), .Output() and .State() methods to DashComponent
  • basically just tags +'-'+self.name to the end of a component_id
  • results in somewhat cleaner callbacks:

    html.Div(id=self.id("output-div")
    
    @app.callback(
        self.Output("output-div", "children"),
        self.Input("input-first-n", "value")
    )
    def update_div(first_n):
        ...
    

v0.0.6: tab-only querystrings, connectors, load from pickles

New Features

• If you add a parameter filepath to your DashFigureFactory you can .dump() without specifying a filepath as it defaults to the filepath parameter.
  • If that DashFigureFactory is parameter for a DashComponent (orDashApp), you can
    then load the pickled object instead of rebuilding the DashFigureFactory from scratch.
    This is useful for when you have a computationally expensive build process
    for your DashFigureFactory. You can indicate that you would like
    to try to load from pickles or only wish to load from pickles by
    passing try_pickles=True or force_pickles=True when loading from config:

  DashApp.from_yaml("dashboard.yaml", try_pickles=True)`

• DashComponentTabs: generate a dcc.Tabs wrapper with a list of dcc.Tab children based on a list of DashComponent subcomponents.
  • This allows dash_oop_components to keep track of which querystring parameters belong to which tab in ._tab_params.
  • So this DashApp the possibility only keeping track of querystring parameters of the specific tab that you are currently on.
  • Documentation here and here
• DashConnector: a Connector can generate callbacks between
  DashComponent instances. This makes connections between components
  also modular and re-usable.
  • Documentation here

Bug Fixes

• Cleaned up querystring code