This method is named "update distribution charge". What this method actually does is delete all of the fee adjustments on an order and all it's line items, then recreate them all from scratch. We call this from lots of different places all the time, and it's incredibly expensive. It even gets called from inside of transactions being run inside callbacks. Renaming it hopefully will add a bit of clarity.
This needs to be a lot more granular!
Sometimes the objects are not paginated. In this case we need to avoid trying to render pagination data, as it will throw an error. This guard clause also means we can remove messy conditionals from several controllers.
Extracts the JSON response from the admin's line item controller which
are only used by the bulk management feature into its own controller.
This decouples spree from an OFN-only feature and allows to remove
unnecessary code. Furthermore, Admin::LineItemsController is gone in
Spree 2.4.0.beta. See: https://github.com/spree/spree/pull/5280
