TL;DR: If using :group => :some_field you might want to :order => 'NULL'. According to the man By default, MySQL...

datetime = DateTime.now date = datetime.to_date #or Date.today will assert: datetime.is_a? Date == true datetime.is_a? DateTime == true datetime.instance_of...

As you know, time zones make stuff a bit more difficult but are necessary. A time-zoned record is converted...

Wether you modify an existing named scope or add a new one, or when you write a new query, make...

If you really, really have a good reason to write raw SQL (generally a bad practice), make sure you use...

It's a good pratice to chain several named scopes like: Property.listable.for_2_or_more_guests.best_10_properties Now, to make the lesson more...