ph_model

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This Gem basically marries ActiveModel and ActiveAttr is a nice package.

The general format for this is that you make classes mixing in PhModel, and then you can use them easier as data objects.

Eg:

class MyModel
  include PhModel
  
  attribute :name, type: String
  attribute :age, type: Fixnum
  
  validates :name, presence: true
  validates :age, presence: true
end

And then .. you're meant to build these things via .build to ensure that they're valid when constructed.

Eg:

model = MyModel.build(name: "John", age: 21)

And if you were to try to construct it invalid, you'd get:

model = MyModel.build(name: "John")
# Raises: PhModel::ValidationFailed: MyModel is invalid: Age can't be blank

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