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-rw-r--r--activesupport/lib/active_support/callbacks.rb13
1 files changed, 10 insertions, 3 deletions
diff --git a/activesupport/lib/active_support/callbacks.rb b/activesupport/lib/active_support/callbacks.rb
index d43fde03a9..e6baddf5db 100644
--- a/activesupport/lib/active_support/callbacks.rb
+++ b/activesupport/lib/active_support/callbacks.rb
@@ -71,7 +71,7 @@ module ActiveSupport
# halt the entire callback chain and display a deprecation message.
# If false, callback chains will only be halted by calling +throw :abort+.
# Defaults to +true+.
- mattr_accessor(:halt_and_display_warning_on_return_false) { true }
+ mattr_accessor(:halt_and_display_warning_on_return_false, instance_writer: false) { true }
# Runs the callbacks for the given event.
#
@@ -295,6 +295,13 @@ module ActiveSupport
class Callback #:nodoc:#
def self.build(chain, filter, kind, options)
+ if filter.is_a?(String)
+ ActiveSupport::Deprecation.warn(<<-MSG.squish)
+ Passing string to define callback is deprecated and will be removed
+ in Rails 5.1 without replacement.
+ MSG
+ end
+
new chain.name, filter, kind, options, chain.config
end
@@ -575,7 +582,7 @@ module ActiveSupport
# set_callback :save, :before_meth
#
# The callback can be specified as a symbol naming an instance method; as a
- # proc, lambda, or block; as a string to be instance evaluated; or as an
+ # proc, lambda, or block; as a string to be instance evaluated(deprecated); or as an
# object that responds to a certain method determined by the <tt>:scope</tt>
# argument to +define_callbacks+.
#
@@ -735,7 +742,7 @@ module ActiveSupport
options = names.extract_options!
names.each do |name|
- class_attribute "_#{name}_callbacks"
+ class_attribute "_#{name}_callbacks", instance_writer: false
set_callbacks name, CallbackChain.new(name, options)
module_eval <<-RUBY, __FILE__, __LINE__ + 1