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.