Cycle 2024.4: Multidimensional data pages

[marcelgerber]

Implementation plan

Current prototype PR: #3657

Must-haves

• Extract React components from existing data pages
• URL serialization/deserialization
  • Sensible behaviour if one of the URL params is invalid
  • Load view immediately, even if no URL params present
• Various baking steps - e.g. SQL queries, hydration
  • Provide faqEntries
  • Provide tagToSlugMap
  • Resolve catalog paths to variable IDs
  • primaryTopic for citation information
  • How to serialize grapher config? And where to get overrides from? API endpoint?
    • Create dict: view to grapher config UUID, then fetch clientside on demand [4h]
  • Image metadata [4h] (see Data page FAQ images are not shown #3862)
  • relatedResearch
  • allCharts
  • Include thumbnail image
  • Performance improvements / caching for baking
  • ... anything else?
• Make code ready for review [1d]
  • Unify _OWID_MULTI_DIM_CONFIG and _OWID_DATAPAGEV2_PROPS under a single object
  • Add README explaining lingo (dimension, choice, view, choice group, ...)
  • Add config schema
• Add .env feature flag
• UX changes for long dropdowns: search bar or scrolling
• UI improvements [1.5d]
  • Don't break lines in strings if window too narrow
  • How to break "Configure the data" row if too wide? [2h]
  • Update page title as user navigates [1h]
  • Focus/hover states [2h]
  • Supply data page title by default
  • Radio button padding is not clickable [0.5h]
  • Make changing between views less jumpy above-the-fold [2h]
  • Unavailable radio buttons should be disabled, not hidden [1h]
• What things should go in MDD config?
  • Default selection
  • Probably: Topic page tags
  • Probably: Data page title?
  • Allow for overriding origin metadata / "About this data" section [4h]

Should-haves (will need these at some point!)

• Mobile styles [may be large project]
• Authoring
  • Come up with final variableIds format that we can then support
  • Support catalog paths
• Save things in DB?? [can do this after launch]
• Enable embedding MDDs [can do this after launch]
  • ... with and without select dropdowns

[marcelgerber]

Superseded by #3874, closing.