Module | SeedFu::ActiveRecordExtension |
In: |
lib/seed-fu/active_record_extension.rb
|
Load some seed data. There are two ways to do this.
Verbose syntax
This will seed a single record. The `:id` parameter ensures that if a record already exists in the database with the same id, then it will be updated with the name and age, rather than created from scratch.
Person.seed(:id) do |s| s.id = 1 s.name = "Jon" s.age = 21 end
Note that `:id` is the default attribute used to identify a seed, so it need not be specified.
Terse syntax
This is a more succinct way to load multiple records. Note that both `:x` and `:y` are being used to identify a seed here.
Point.seed(:x, :y, { :x => 3, :y => 10, :name => "Home" }, { :x => 5, :y => 9, :name => "Office" } )
Has the same syntax as {seed}, but if a record already exists with the same values for constraining attributes, it will not be updated.
@example
Person.seed(:id, :id => 1, :name => "Jon") # => Record created Person.seed(:id, :id => 1, :name => "Bob") # => Name changed Person.seed_once(:id, :id => 1, :name => "Harry") # => Name *not* changed