Configurable list of "best" packages to show

[anuveyatsu]

On the front page, we want to show the best 3 (or more) packages from core publisher + 3 (or more) example packages. We want to have some list and be able to configure it when needed.

Acceptance Criteria

• [x] Can configure list of "best" packages using xyz/abc styling naming (publisher name and package name)
• [x] Can configure list of "tutorial" packages similar to core

Tasks

• [x] research [45m]
  • [x] research site controllers - how /search/ page is implemented, how list of packages built and passed to the template [30m]
  • [x] note we don't have to reuse search ...
  • [x] find out which snippet is being used for search results page to show list of data packages [15m]
  • [x] Research how to set config list (do we just hardcode for now in config.py!) What do we do if packages not found (just ignore them then ...)
• [x] Test
• [x] reuse / refactor to use code snippets for front page [30m]

Analysis

Refactor Logic Layer

SCQA = situation, complication, question

• Situation: logic for getting a data package in form for use in a template is inline in showcase controller (/publisher/name)
• Complication: we want to use it elsewhere, e.g. for front page sample packages
• Question: what do we do that avoids duplication
• Answer: factor out this functionality into the logic layer.

Plan of action:

• Write a logic test for get_package function
• Refactor getting a data package code from controller into here
• Commit
• Then use same logic in front page with config
  • Write test first

[anuveyatsu]

FIXED in #372 and #373