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-rw-r--r--activerecord/lib/active_record/associations/preloader/association.rb4
-rw-r--r--activerecord/lib/active_record/callbacks.rb16
-rw-r--r--activerecord/lib/active_record/database_configurations.rb4
-rw-r--r--activerecord/lib/active_record/relation/spawn_methods.rb1
4 files changed, 6 insertions, 19 deletions
diff --git a/activerecord/lib/active_record/associations/preloader/association.rb b/activerecord/lib/active_record/associations/preloader/association.rb
index 0f38d6bbda..d6f7359055 100644
--- a/activerecord/lib/active_record/associations/preloader/association.rb
+++ b/activerecord/lib/active_record/associations/preloader/association.rb
@@ -42,11 +42,11 @@ module ActiveRecord
def associate_records_to_owner(owner, records)
association = owner.association(reflection.name)
+ association.loaded!
if reflection.collection?
- association.loaded!
association.target.concat(records)
else
- association.target = records.first
+ association.target = records.first unless records.empty?
end
end
diff --git a/activerecord/lib/active_record/callbacks.rb b/activerecord/lib/active_record/callbacks.rb
index 9dbdf845bd..fd6819d08f 100644
--- a/activerecord/lib/active_record/callbacks.rb
+++ b/activerecord/lib/active_record/callbacks.rb
@@ -75,21 +75,7 @@ module ActiveRecord
# end
#
# Now, when <tt>Topic#destroy</tt> is run only +destroy_author+ is called. When <tt>Reply#destroy</tt> is
- # run, both +destroy_author+ and +destroy_readers+ are called. Contrast this to the following situation
- # where the +before_destroy+ method is overridden:
- #
- # class Topic < ActiveRecord::Base
- # def before_destroy() destroy_author end
- # end
- #
- # class Reply < Topic
- # def before_destroy() destroy_readers end
- # end
- #
- # In that case, <tt>Reply#destroy</tt> would only run +destroy_readers+ and _not_ +destroy_author+.
- # So, use the callback macros when you want to ensure that a certain callback is called for the entire
- # hierarchy, and use the regular overwritable methods when you want to leave it up to each descendant
- # to decide whether they want to call +super+ and trigger the inherited callbacks.
+ # run, both +destroy_author+ and +destroy_readers+ are called.
#
# *IMPORTANT:* In order for inheritance to work for the callback queues, you must specify the
# callbacks before specifying the associations. Otherwise, you might trigger the loading of a
diff --git a/activerecord/lib/active_record/database_configurations.rb b/activerecord/lib/active_record/database_configurations.rb
index 86624a41c9..1c7a5d1347 100644
--- a/activerecord/lib/active_record/database_configurations.rb
+++ b/activerecord/lib/active_record/database_configurations.rb
@@ -46,8 +46,8 @@ module ActiveRecord
if config["database"] || env_name == "default"
DatabaseConfig.new(env_name, spec_name, config)
else
- config.each_pair.map do |spec_name, sub_config|
- walk_configs(env_name, spec_name, sub_config)
+ config.each_pair.map do |sub_spec_name, sub_config|
+ walk_configs(env_name, sub_spec_name, sub_config)
end
end
end
diff --git a/activerecord/lib/active_record/relation/spawn_methods.rb b/activerecord/lib/active_record/relation/spawn_methods.rb
index 562e04194c..b092399657 100644
--- a/activerecord/lib/active_record/relation/spawn_methods.rb
+++ b/activerecord/lib/active_record/relation/spawn_methods.rb
@@ -10,6 +10,7 @@ module ActiveRecord
def spawn #:nodoc:
clone
end
+ alias :all :spawn
# Merges in the conditions from <tt>other</tt>, if <tt>other</tt> is an ActiveRecord::Relation.
# Returns an array representing the intersection of the resulting records with <tt>other</tt>, if <tt>other</tt> is an array.