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drive_name
2006 Jul 15
0
Validate using boolean values
...ssure must be
marked ''true'' as the standard unit_price for that meassure.
There will be many other unit_prices for a given meassure, those must be
marked ''false''
table sizes
meassure, :string (ie.small, medium, big)
Model Size
has_many :prices
table prices
price_name :string
unit_price :integer
standard :boolean
size_id :integer
Model Price
belongs_to :size
I have tried both of this validation options in the Price model,
first one, then the other and none works for my stated needs.
validates_uniqueness_of :standard, :scope => :size_id,...