Epic: make sure we aren't using deprecated or removed methods for Ember 4

[jenweber]

Read through this list of APIs that are being removed in Ember 4. If we are using any of them in the guides/release folder, comment or open new issues/PRs. Thank you.

The list of removed APIs is in this blog post: Road to Ember 4

Main Ember 4 tracking issue

Road to Ember 4

mixonic's quest

Blocking

• transitionTo/transitionToRoute/replaceWith/replaceWithRoute
  • deprecation: https://deprecations.emberjs.com/v3.x/#toc_routing-transition-methods)
  • PR: Ember 4.0 preparation #1753
  • https://guides.emberjs.com/release/routing/defining-your-routes/#toc_transitioning-between-routes transitionTo and transitionToRoute on the route and controller respectively should be dropped.
  • Also at https://guides.emberjs.com/release/routing/preventing-and-retrying-transitions/
  • replaceWith, same thing, at https://guides.emberjs.com/release/routing/loading-and-error-substates/
  • transitionTo, same thing, at https://guides.emberjs.com/release/routing/query-params/
  • Also https://guides.emberjs.com/release/routing/asynchronous-routing/
• Update "Ember Data: Introduction" guide #1755
• Remove tagName from LinkTo Remove deprecated use of tagName in LinkTo #1759

Non-blocking

• Remove A() usage from "Looping through lists" guide #1756
  • Replaces EmberArray with tracked property in "Looping through lists" #1758
• Improve error catching flow in "Defining Your Routes: Wildcard/Globbing Routes" guide section #1757
• Update "Router Events" deprecation guide deprecation-app#1034
• Update "Redirection" guide for 4.0 #1754

Unclear

• Need to assert ember-modifiers is compatible with 4.0
• This deprecation guide entry is poorly formatted. The component names should not be part of the list: https://deprecations.emberjs.com/v3.x/#toc_ember-built-in-components-legacy-arguments
• Some weird promise stuff at https://guides.emberjs.com/release/routing/asynchronous-routing/

Audit needed

• Application Development: https://guides.emberjs.com/release/applications/
• Developer Tools: https://guides.emberjs.com/release/ember-inspector/
• Additional Resources: https://guides.emberjs.com/release/upgrading/
• Should search for transition.params and friends to make sure they aren't used, as deprecated at https://deprecations.emberjs.com/v3.x/#toc_transition-state

[kategengler]

The tutorial raises on deprecation, so it shouldn't have anything deprecated.

[jenweber]

@rajakvk is interested in working on this!

[mixonic]

@jenweber @rajakvk can you provide an update here? We're hopeful about landing Ember 4.0 in the coming week or so, and this would become a blocker.

[mixonic]

I looked through Core Concepts and Introduction(minus the tutorial).

Critical to address:

• At https://guides.emberjs.com/release/routing/defining-your-routes/#toc_transitioning-between-routes transitionTo and transitionToRoute on the route and controller respectively should be dropped. See https://deprecations.emberjs.com/v3.x/#toc_ember-built-in-components-legacy-arguments
• Same at https://guides.emberjs.com/release/routing/redirection/, lots of deprecated transition APIs in the guide.
• Also at https://guides.emberjs.com/release/routing/preventing-and-retrying-transitions/
• replaceWith, same thing, at https://guides.emberjs.com/release/routing/loading-and-error-substates/
• transitionTo, same thing, at https://guides.emberjs.com/release/routing/query-params/
• Also https://guides.emberjs.com/release/routing/asynchronous-routing/
• Should search for transition.params and friends to make sure they aren't used, as deprecated at https://deprecations.emberjs.com/v3.x/#toc_transition-state
• <LinkTo and @tagName used at https://guides.emberjs.com/release/models/#toc_the-store-and-a-single-source-of-truth removed per https://deprecations.emberjs.com/v3.x/#toc_ember-built-in-components-legacy-arguments
• transitionTo at https://deprecations.emberjs.com/v3.x/#toc_ember-built-in-components-legacy-arguments

Not critical:

• https://guides.emberjs.com/release/components/looping-through-lists/ - This example uses A( for ember array. For app authors getting started, this is not necessary. Only users who would like to disable prototype extensions and use array mutation with tracking must use that API. For beginners, IMO we should not teach it.
• Need to assert ember-modifiers is compatible with 4.0
• This deprecation guide entry is poorly formatted. The component names should not be part of the list: https://deprecations.emberjs.com/v3.x/#toc_ember-built-in-components-legacy-arguments
• The error catching flow in https://guides.emberjs.com/release/routing/defining-your-routes/#toc_wildcard--globbing-routes is not ideal, it swallows all errors silently. Also, promise API is being used inside an async function which is not needed.
• Some weird promise stuff at https://guides.emberjs.com/release/routing/asynchronous-routing/

Remaining sections to audit:

• Application Development: https://guides.emberjs.com/release/applications/
• Developer Tools: https://guides.emberjs.com/release/ember-inspector/
• Additional Resources: https://guides.emberjs.com/release/upgrading/

[jenweber]

Hi @mixonic thanks for your help with the QA! We have one merged PR that addressed a lot of routing things, and I’ll check that it’s live. I also have an open PR updating a lot of classic content. After work I’ll cross reference those to see where we still have gaps.

[locks]

@mixonic can you elaborate on these three points? I am not sure I understand what needs to happen for each:

• Need to assert ember-modifiers is compatible with 4.0
• This deprecation guide entry is poorly formatted. The component names should not be part of the list: https://deprecations.emberjs.com/v3.x/#toc_ember-built-in-components-legacy-arguments
• Some weird promise stuff at https://guides.emberjs.com/release/routing/asynchronous-routing/

[bertdeblock]

This deprecation guide entry is poorly formatted.

I think this PR should improve that: ember-learn/deprecation-app#1035

[locks]

🎉