Change seeds.rb script to use bulk insertion
Summary
Right now, each course section is created and inserted individually in the data loading script. This takes a long time. When working with SQL it's much quicker to use bulk insertion, which ActiveRecord thankfully supports.
Update seeds.rb
to use this method which allows for bulk insertion.
Helpful Links
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information