Dash v1.8.0

Dash and Dash-Renderer

Added

• #1073 Two new functions to simplify usage handling URLs and pathnames: app.get_relative_path & app.trim_relative_path.
  These functions are particularly useful for apps deployed on Dash Enterprise where the apps served under a URL prefix (the app name) which is unlike apps served on localhost:8050.
  • app.get_relative_path returns a path with the config setting requests_pathname_prefix prefixed. Use app.get_relative_path anywhere you would provide a relative pathname, like dcc.Link(href=app.relative_path('/page-2')) or even as an alternative to app.get_asset_url with e.g. html.Img(src=app.get_relative_path('/assets/logo.png')).
  • app.trim_relative_path a path with requests_pathname_prefix and leading & trailing
    slashes stripped from it. Use this function in callbacks that deal with dcc.Location pathname
    routing.
    Example usage:

  app.layout = html.Div([
      dcc.Location(id='url'),
      html.Div(id='content')
  ])
  @app.callback(Output('content', 'children'), [Input('url', 'pathname')])
  def display_content(path):
      page_name = app.strip_relative_path(path)
      if not page_name:  # None or ''
          return html.Div([
              html.Img(src=app.get_relative_path('/assets/logo.png')),
              dcc.Link(href=app.get_relative_path('/page-1')),
              dcc.Link(href=app.get_relative_path('/page-2')),
          ])
      elif page_name == 'page-1':
          return chapters.page_1
      if page_name == "page-2":
          return chapters.page_2

Changed

• #1035 Simplify our build process.
• #1074 Error messages when providing an incorrect property to a component have been improved: they now specify the component type, library, version, and ID (if available).

Fixed

• #1037 Fix no_update test to allow copies, such as those stored and retrieved from a cache.

Dash-Core-Components

Added

• #711 Added support for dcc.Link (dccLink) and nested dcc.Markdown (dccMarkdown) react components inside of dcc.Markdown
• #706
  • Added new responsive property that overrides the underlying Plotly.js graph responsiveness from Dash-land
  • Added responsiveness on graph parent element resize (previously only worked on window.resize)
  • Added new dash-graph--pending class to dcc.Graph, present while resizing, (re-)rendering, loading

Changed

• #723 Changed npm package content to allow source code inclusion from other projects
• #725 Improve async graph performance by parallelizing resource fetching instead of fetching sequentially
• #720 highlight.js is now bundled into the package, and no longer sets the window.hljs variable. Similarly to how plotly.js is handled, it is overridden by a user-provided version if one exists.

Updated

• #732
  • Upgraded plotly.js to 1.52.1
  • Feature release 1.52.0 which contains:
    • Enable loading locale bundles before plotly.js bundles #4453
    • ko localization #4315
  • Patch release 1.52.1 containing several bug fixes.
• #706
  • Upgraded plotly.js to 1.51.3

Dash-Table

Added

• #606 Add markdown support for table cells. Cells will be rendered as markdown if the column presentation is specified as markdown.
  • Add highlight.js for syntax highlighting. If window.hljs is specified, that will be used for highlighting instead.

Fixed

• #670 Fix a bug where derived_filter_query_structure was not getting updated properly
• #677 Fix a bug where the table fails to load when used inside an iframe with a sandbox attribute that only has allow-scripts
• #665 Fix a bug in Firefox where the dropdown cells height is incorrect

Dash v1.7.0

Dash and Dash-Renderer

Added

• #967 Add support for defining
  clientside JavaScript callbacks via inline strings.
• #1020 Allow visit_and_snapshot API in dash.testing.browser to stay on the page so you can run other checks.

Changed

• #1026 Better error message when you forget to wrap multiple children in an array, and they get passed to other props.

Fixed

• #1018 Fix the dash.testing stop API with process application runner in Python2. Use kill() instead of communicate() to avoid hanging.
• #1027 Fix bug with renderer callback lock never resolving with non-rendered async component using the asyncDecorator

Dash-Core-Components

Updated

• Upgraded plotly.js to 1.51.2 #708
  • Patch release 1.51.2 containing several bug fixes.

Changed

• #695 Improvements to Slider and RangeSlider
  • Marks outside of the range specified by min and max are now omitted when the slider renders.
  • Padding is now dependent on the orientation (vertical or horizontal), and whether or not tooltips are always displayed.
  • The whitespace is now preserved for marks labels.

Added

• #695 Added new property verticalHeight to Slider and RangeSlider, to allow the user to specify the height (in px) of vertical sliders. This defaults to 400.

Dash v1.6.1

Dash

Fixed

• #1006 Fix IE11 / ES5 compatibility and validation issues
• #1006 Fix bug with renderer wrapper component TreeContainer to prevent useless re-renders
• #1001
  • Fix and improve the clear_input() API in dash.testing, so it's more robust handling react input.
  • make the percy_snapshot() API more robust, and the timeout of wait_for_callbacks (if set to True) will not fail the snapshot execution, but logged as potential error.

Dash-Core-Components

Fixed

• #696 Fix IE11 compatibility issues and ES5 compatibility and validation

Changed

• #687 Use start_date, min_date_allowed, end_date, or max_date_allowed for the initial visible month if the value of the parameter initial_visible_month is not supplied.

Dash-Html-Components

Fixed

• #143 Fix IE11 compatibility issues and ES5 compatibility and validation

Dash-Table

Fixed

• #637 Fix multiple issues
  • Fix IE11 compatibility issues and add ES5 compatibility and validation
  • Fix a bug with loading_state being handled incorrectly, causing the table to steal focus

Dash v.1.6.0

Dash

Fixed

• #999 Fix fingerprint for component suites with metadata in version.
• #983 Fix the assets loading issues when dashR application runner is handling with an app defined by string chunk.

Dash-Core-Components

Added

• #692 Async DatePickerSingle, DatePickerRange, Dropdown, Markdown, Upload components

Dash v1.5.1

Dash and Dash-Renderer

Fixed

• #987 Fix cache string handling for component suites with nested folders in their packages.
• #986 Fix a bug with evaluation of _force_eager_loading when application is loaded with gunicorn

Dash v1.5.0

Dash and Dash-Renderer

Added

• #964 Adds support for preventing updates in clientside functions.
  • Reject all updates with throw window.dash_clientside.PreventUpdate;
  • Reject a single output by returning window.dash_clientside.no_update
• #899 Add support for async dependencies and components
• #973 Adds support for resource caching and adds a fallback caching mechanism through etag

Dash-Core-Components

Added

• #616 Async Graph and Plotly.js

Dash-Table

Changed

• #554 Async loading of xlsx library on export

Dash v1.4.1

Dash and Dash-Renderer

Fixed

• #969 Fix warnings emitted by react devtools coming from our own devtools components.

Dash-Core-Components

Updated

• Upgraded plotly.js to 1.50.1 #681
  • Patch release 1.50.1 containing several bug fixes.

Fixed

• #681 Fix a bug with the dcc.Graph component logging errors in certain circumstances when nested inside a dcc.Loading component

Dash-Table

Fixed

• #618 Fix a bug with keyboard navigation not working correctly in certain circumstances when the table contains readonly columns.
• #206 Fix a bug with copy/paste to and from column filters not working.
• #561 Fix an incorrect React PureComponent usage causing warnings in DevTools.
• #611 Fix a bug with copy/paste causing hidden columns to be removed from the table

Dash v1.4.0

Dash and Dash-Renderer

Added

• #948 Support setting working directory for R apps run using the dashr fixture, primarily useful for tests with assets. dashr.start_server supports a cwd argument to set an explicit working directory, and has smarter defaults when it's omitted: if app is a path to an R script, uses the directory of that path; if app is a string, uses the directory the test file itself is in.
• #944
  • Relevant dash.testing methods can now be called with either an element or a CSS selector: select_dcc_dropdown, multiple_click, clear_input, zoom_in_graph_by_ratio, click_at_coord_fractions.
  • Three new dash.testing methods: clear_local_storage, clear_session_storage, and clear_storage (to clear both together)
• #937 dash.testing adds two APIs zoom_in_graph_by_ratio and click_at_coord_fractions about advanced interactions using mouse ActionChain
• #938 Add debugging traces to dash backend about serving component suites, to verify the installed packages whenever in doubt.

Fixed

• #944 Fix a bug with persistence being toggled on/off on an existing component.

Dash-Table

Added

#546

• New prop export_columns that takes values all or visible (default). This prop controls the columns used during export

#597

• Add is blank unary operator. Returns true for undefined, null and ''.

#299

• New prop page_count that sets the maximum number of pages that are
  accessible via the pagination menu when using backend pagination.

Changed

#598

• Allow values with whitespaces in column filters

#580

• Change pagination menu button UI to use arrow icons instead of plain
  buttons
• Move pagination menu to bottom-right of table
• Include go-to-first and go-to-last buttons
• Include current-page and total-pages display in pagination menu
• Include input box for user to navigate directly to a page

Fixed

#460

• The datestartswith relational operator now supports number comparison
• Fixed a bug where the implicit operator for columns was equal instead of the expected default for the column type

#546

• Visible columns are used correctly for both header and data rows

#563

• Fixed a bug where any string beginning with a relational operator was being interpreted as that operator being applied to the rest of the string (e.g., "lens" was interpreted as "<=ns")

#591

• Fixed row and column selection when multiple tables are present

#600

• Fixed reconciliation when validation default value is 0 (number)
• Apply reconciliation value when deleting cells, if possible

Dash-Core-Components

Added

• Added search_value prop to Dropdown, for server-side options loading/filtering. #660

Updated

• Upgraded plotly.js to 1.50.0 #675
  • Feature release 1.50.0 which contains:
    • A new treemap trace type for display of hierarchical data.
    • texttemplate support for all traces with on-graph text, and custom date formatting for templated on-graph and hover text.
    • Transitions (animation) for bar charts.
    • Numerous other performance improvements, features, and bug fixes.
  • Patch release 1.49.5 containing several bug fixes.

Dash v1.3.1

##dash-core-components

Fixed

• Fix regression in DatePickerRange, DatePickerSingle, Input
  #652

Dash v1.3.0

dash

Added

• #923 Adds one configuration --percy-assets in pytest to specify extra application assets path if needed
• #918 Adds wait_for_element_by_id and visit_and_snapshot APIs in browser, adds raw_command option (it also has higher priority than
  the default waitress one) and optional start_timeout argument to handle large application within process runner

dash-core-components

Added

• Added support for persistence of user-edited props to value-input components: Checklist, DatePickerRange, DatePickerSingle, Dropdown, Input, RadioItems, RangeSlider, Slider, Tabs, and Textarea. New props are persistence, persistence_type, and persisted_props. Set persistence to a truthy value to enable, the other two modify persistence behavior. See plotly/dash#903 for more details. #646

Fixed

• Fixed Slider and RangeSlider components with tooltip.always_visible #640
• Fixed an infinite loop problem when Graph is wrapped by Loading component #608

dash-renderer

Added

• #903 enables props edited by the user to persist across recreating the component or reloading the page. Components need to define three new props: persistence, persisted_props, and persistence_type as described in the lead comment of src/persistence.js. App developers then enable this behavior by, in the simplest case, setting persistence: true on the component. First use case is table, see dash-table#566

Fixed

• Reduced about 55% of the dash-renderer packages size on PyPI by removing the source maps. To do more advanced debugging, the source maps needs to be generated from source code with npm run build:local and pip install in editable mode, i.e. pip install -e . #910

dash-table

Added

#566

• Support persisting user edits when the component or the page is reloaded. New props are persistence, persistence_type, and persisted_props. Set persistence to a truthy value to enable, the other two modify persistence behavior. See plotly/dash#903 for more details.
  #319
• New 'loading_state' prop that contains information about which prop, if any, is being computed.
• Table no longer allows for editing while the data prop is loading.

Fixed

#578

• Fix #576, editing column names or deleting columns while other columns are hidden causing the hidden columns to be lost.
• Fix an unreported bug that clicking "Cancel" at the column name edit prompt would clear the name, rather than leaving it unchanged as it should.
  #569, #544
• Allow empty strings in all filter_query (e.g filter_query: '{colA} eq ""')
  #567
• Add support for missing border-radius in style_** props
• Fix table's inner vs. outer container styling
  #18
• Fix row selection vertical and horizontal alignment
  #103
• Simplify usage for multi-line cells and ellipsis. The cell's content now inherits the value of
  white-space, overflow and text-overflow from its parent, making it possible to style
  multi-line & ellipsis with style_data and other style props.
  #583
• Fix regression when editing the content of a cell in a scrolled virtualized table