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-rw-r--r--activerecord/lib/active_record/persistence.rb24
1 files changed, 18 insertions, 6 deletions
diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb
index 582006ea7d..a73a140ef1 100644
--- a/activerecord/lib/active_record/persistence.rb
+++ b/activerecord/lib/active_record/persistence.rb
@@ -335,8 +335,18 @@ module ActiveRecord
# Reloads the record from the database.
#
- # This method modifies the receiver in-place. Attributes are updated, and
- # caches busted, in particular the associations cache.
+ # This method finds record by its primary key (which could be assigned manually) and
+ # modifies the receiver in-place:
+ #
+ # account = Account.new
+ # # => #<Account id: nil, email: nil>
+ # account.id = 1
+ # account.reload
+ # # Account Load (1.2ms) SELECT "accounts".* FROM "accounts" WHERE "accounts"."id" = $1 LIMIT 1 [["id", 1]]
+ # # => #<Account id: 1, email: 'account@example.com'>
+ #
+ # Attributes are reloaded from the database, and caches busted, in
+ # particular the associations cache.
#
# If the record no longer exists in the database <tt>ActiveRecord::RecordNotFound</tt>
# is raised. Otherwise, in addition to the in-place modification the method
@@ -383,14 +393,16 @@ module ActiveRecord
end
@attributes.update(fresh_object.instance_variable_get('@attributes'))
- @columns_hash = fresh_object.instance_variable_get('@columns_hash')
- @attributes_cache = {}
+ @column_types = self.class.column_types
+ @column_types_override = fresh_object.instance_variable_get('@column_types_override')
+ @attributes_cache = {}
self
end
# Saves the record with the updated_at/on attributes set to the current time.
- # Please note that no validation is performed and no callbacks are executed.
+ # Please note that no validation is performed and only the +after_touch+
+ # callback is executed.
# If an attribute name is passed, that attribute is updated along with
# updated_at/on attributes.
#
@@ -433,7 +445,7 @@ module ActiveRecord
changes[self.class.locking_column] = increment_lock if locking_enabled?
- @changed_attributes.except!(*changes.keys)
+ changed_attributes.except!(*changes.keys)
primary_key = self.class.primary_key
self.class.unscoped.where(primary_key => self[primary_key]).update_all(changes) == 1
end