Find by one attribute
User.find_or_create_by_username('beena')
It will find the record with username 'beena' in table user and if record is not found then it will create a new record with username 'beena'
Find by one attribute or create by multiple attributes
User.find_or_create_by_username('beenas',
:first_name => 'beena',
:last_name => 'shetty',
:role_id => 1)
Find by multiple attributes
User.find_or_create_by_username_and_role_id('beenas', 2)
It will find the record with username 'beena' and role_id '2' in table user and if record is not found then it will create a new record with username 'beena' and role_id 2
Find by multiple attributes and pass multiple attribute to a new row to be created
User.find_or_create_by_username_and_role_id('beenas', 2) do |u|
u.first_name => 'beena',
u.last_name => 'shetty',
u.role_id => 1
end
It will find the record with username 'beena' and role_id '2' in table user and if record is not found then it will create a new record with username 'beena', role_id 2 and along with other attribute passed.
