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-rw-r--r--activerecord/lib/active_record/core.rb29
1 files changed, 21 insertions, 8 deletions
diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb
index 9a39a0e919..1ad910c4bc 100644
--- a/activerecord/lib/active_record/core.rb
+++ b/activerecord/lib/active_record/core.rb
@@ -94,6 +94,15 @@ module ActiveRecord
mattr_accessor :dump_schemas, instance_writer: false
self.dump_schemas = :schema_search_path
+ ##
+ # :singleton-method:
+ # Specify a threshold for the size of query result sets. If the number of
+ # records in the set exceeds the threshold, a warning is logged. This can
+ # be used to identify queries which load thousands of records and
+ # potentially cause memory bloat.
+ mattr_accessor :warn_on_records_fetched_greater_than, instance_writer: false
+ self.warn_on_records_fetched_greater_than = nil
+
mattr_accessor :maintain_test_schema, instance_accessor: false
mattr_accessor :belongs_to_required_by_default, instance_accessor: false
@@ -293,18 +302,22 @@ module ActiveRecord
assign_attributes(attributes) if attributes
yield self if block_given?
- _run_initialize_callbacks
+ run_callbacks :initialize
end
- # Initialize an empty model object from +coder+. +coder+ must contain
- # the attributes necessary for initializing an empty model object. For
- # example:
+ # Initialize an empty model object from +coder+. +coder+ should be
+ # the result of previously encoding an Active Record model, using
+ # `encode_with`
#
# class Post < ActiveRecord::Base
# end
#
+ # old_post = Post.new(title: "hello world")
+ # coder = {}
+ # old_post.encode_with(coder)
+ #
# post = Post.allocate
- # post.init_with('attributes' => { 'title' => 'hello world' })
+ # post.init_with(coder)
# post.title # => 'hello world'
def init_with(coder)
coder = LegacyYamlAdapter.convert(self.class, coder)
@@ -316,8 +329,8 @@ module ActiveRecord
self.class.define_attribute_methods
- _run_find_callbacks
- _run_initialize_callbacks
+ run_callbacks :find
+ run_callbacks :initialize
self
end
@@ -353,7 +366,7 @@ module ActiveRecord
@attributes = @attributes.dup
@attributes.reset(self.class.primary_key)
- _run_initialize_callbacks
+ run_callbacks(:initialize)
@new_record = true
@destroyed = false