The ever-growing list of bullshit in Rails

gistfile1.md

Generally speaking, Rails core resists to change its fundamentally flawed architecture. Instead of adding new abstractions, such as form objects, they basically add conditional :if everywhere as a work-around. This document discusses the solutions.

ApplicationRenderer.render

DoubleRenderError

Validation contexts

strong_parameters

accepts_nested_attributes_for

ActiveRecord.suppress

Wicked render
Cell render (should be up!)
ApplicationController render

Rails 5 made all belongs_to association required by default. This is total bullshit especially when upgrading from Rails 4.2.
To disable this add

config.active_record.belongs_to_required_by_default = false

to your config.

To completely disable strong parameters in Rails when you are using form objects add

config.action_controller.permit_all_parameters = true

to your config.