f1b5c34b4d
Show the length of videos and animated posts in the thumbnail. The length is shown the top left corner in MM:SS format. This replaces the play button icon. Show a speaker icon instead of a music note icon for posts with sound. Doing this requires doing `.includes(:media_asset)` in a bunch of places to avoid N+1 queries when we access the post's duration.
Helpers
This directory contains helper functions used by views. Helpers are used for simple common functions, such as linking to users or formatting timestamps.
Helper functions are globals. If you see an unnamespaced function in a view, and it's not a Rails function, then it's probably a helper defined here.
All helper functions defined in this directory are globally available to all views. They're not limited to single views. For example, the functions in posts_helper.rb are available to all views, not just to app/views/posts.
The use of helper functions should be minimized. Partials or components are preferred for more complex widgets, or for things used in only one or two places. Helper functions should be limited to very simple things used in nearly all views.