Ruby on Rails Deprecations Part 2: ActiveRecord

My search of deprecations for ActiveRecord returned a mercifully short list. Here they are:

Deprecated Associations

• :dependent => true - use :dependent => :destroy
• :exclusively_dependent - use :dependent => :delete_all
• push_with_attributes - if associations require attributes, use has_many :through

Deprecated Methods

• count by conditions or joins - use count(column_name, options)
• find_all - use find(:all, ...)
• find_first - use find(:first, ...)
• human_attribute_name - use .humanize
• Object-level transactions