Content Ratings for XF2.1 2.4.2

inspired by the XF1 add-on "Post Ratings", and the prevalence of "Reactions" as an alternative to the single dimensional Likes.

Post Installing
This add-on will require configuration, only a default "Like" is added after installing.

• Tools => Import Data => Import from XF1 Post Ratings
• Content => Content Rating => Rating Types => Add Default Rating Types
  • This adds "Facebook Style" ratings of;
    • Like
    • Love
    • Haha
    • Wow
    • Sad ?
    • Angry
• Content => Content Rating => Rating Types =>Add New Rating Type.

Installing/Uninstalling on a large forum

It is strongly recommended to use the CLI installer/uninstaller.

Features

• XF1 "Post Ratings" importer
• Whitelist/blacklist ratings by user group, lock to starting poster, and limit to forums (for threads)
• Content Ratings/Reactions on Posts and Conversations.
  • Integrates with alerts & news feed where applicable.
• Rating Types;
  • Support flexible image icon selection;
    • Emoji
    • Sprite Images
    • Images (with high definition alternative image)
    • css fonts
    • Templates (for inline SVG)
  • A Rating type can be usable or visible;
    • Visible & usable - everyone can use and see
    • Not visible & usable - only the person giving the rating can see their own rating, allowing a "private rating".
    • Visible & not usable - everyone can see, not may not use it.
    • Not Visible & not usable, - no one may see or use it.
• Supported Content types:
  • Posts
  • Conversation Messages
  • Profile Posts
  • Profile Post Comments
• Rating Categories
  • For example; positive/negative/neutral categories
  • If a category shows on the profile/memberbit/postbit & how stats are presented.
• Statistics integration
• User Criteria integration
• Selectable "default rating" to display as the menu icon, can be Random, or None.
• Large number of style properties to customize look and feel.
  • Horizontal rating selection
  • Touch support
• Display highest ratings on thread rating list (disabled by default)
  • Global option to enable/disable
  • Style property options to customize
• Rating Categories automatic actions when a category hits some threshold ;
  • Report content
  • Moderate content
  • Soft-delete content
• Allow arbitrary number of rating type/rating type category user criteria

Implementation notes

• Designed for performance, only minimal data is fetched when interacting with the rating system
  • Overrides XF2's rebuild behaviour to instead be incremental rather than count all ratings on a piece of content.
• As MySQL's InnoDB table structure does not feature prefix compression, a content type/id pair is very inefficient space-wise.
• Uses per-content tables which are dynamically managed to store count totals, and automagically links these to the right places for use.
• If a content's table is "too large" to extend (ie when adding a rating type) without downtime, that content has the rating type disabled for it and the required manual SQL for the administrator to run provided.
  • "too large " table size threshold is an adjustable, may be to fully automatic or fully manual for adding columns.