AR-67+68: Publish Date Sorting Kerfuffles

[ElliottAYoung]

Purpose:

Fixes our sorting logic for the posts feed so that if the published filter is applied the total set of posts are sorted by the published_at date, rather than the created_at date. Leaves the expected return the same on legacy cortex.

AR-67:

Articles on the filtered landing pages (Discovery, Get the Job, etc.) are not in order of the date published and we would like them to be, similar to the A&R homepage.

AR-68

Ensure all searches for A&R deliver results by the visible, published date on a post - NOT the create date or modified date.

JIRA:

• https://cb-content-enablement.atlassian.net/browse/AR-67
• https://cb-content-enablement.atlassian.net/browse/AR-68

Steps to Take On Prod

• Go to /api/v1/posts/feed?per_page=100 (several per page to prove behavior)
• Confirm that, with the notable exception of sticky posts, the posts are in order of publish date, with the most recent being at the top

Changes:

• Changes to setup

  • Rework ES logic for Posts

• Architectural changes

  • ^

• Migrations

  • N/A

• Library changes

  • N/A

• Side effects

  • N/A

Screenshots

• Before
  N/A

• After
  N/A

QA Links:

http://web.cortex-6.development.c66.me/ (Having deploy issues ATM)

How to Verify These Changes

• Specific pages to visit

  • /api/v1/posts/feed?per_page=100

• Steps to take

  • Confirm that, with the exception of sticky posts, the posts are sorted by Published Date, with the most recent at the top.

• Responsive considerations

  • N/A

Relevant PRs/Dependencies:

#495: Upgrading Cortex to ES 5.4.0, which this is fully compatible with

Additional Information

N/A

[toastercup]

@ElliottAYoung C66 is failing to deploy because the Gemfile.lock is not in sync with the Gemfile in the branch that this PR branches off of - topic/COR-772-Upgrade-ES-to-5.x. Please sync on that branch and then rebase + rebuild. Thanks!

[toastercup]

Gemfile/Gemfile.lock sync necessary

[ElliottAYoung]

@toastercup Deployed at http://web.cortex-6.development.c66.me