Class: StoreModel::Types::OnePolymorphic

Inherits:
OneBase
  • Object
show all
Includes:
PolymorphicHelper
Defined in:
lib/store_model/types/one_polymorphic.rb

Overview

Implements ActiveModel::Type::Value type for handling an instance of StoreModel::Model

Instance Method Summary collapse

Methods included from PolymorphicHelper

#implements_model?, #raise_extract_wrapper_error

Methods inherited from OneBase

#changed_in_place?

Constructor Details

#initialize(model_wrapper) ⇒ StoreModel::Types::OnePolymorphic

Initializes type for model class

Parameters:

  • model_wrapper (Proc) —

    class to handle



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# File 'lib/store_model/types/one_polymorphic.rb', line 16

def initialize(model_wrapper)
  @model_wrapper = model_wrapper
end

Instance Method Details

#cast_value(value) ⇒ Object

Casts value from DB or user to StoreModel::Model instance

Parameters:

  • value (Object) —

    a value to cast

Returns:

  • StoreModel::Model



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# File 'lib/store_model/types/one_polymorphic.rb', line 32

def cast_value(value)
  case value
  when String then decode_and_initialize(value)
  when Hash then extract_model_klass(value).new(value)
  when nil then value
  else
    raise_cast_error(value) unless value.class.ancestors.include?(StoreModel::Model)

    value
  end
rescue ActiveModel::UnknownAttributeError => e
  handle_unknown_attribute(value, e)
end

#serialize(value) ⇒ String

Casts a value from the ruby type to a type that the database knows how to understand.

Parameters:

  • value (Object) —

    value to serialize

Returns:

  • (String) —

    serialized value



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# File 'lib/store_model/types/one_polymorphic.rb', line 52

def serialize(value)
  case value
  when Hash
    ActiveSupport::JSON.encode(value)
  else
    return ActiveSupport::JSON.encode(value) if implements_model?(value.class)

    super
  end
end

#type ⇒ Symbol

Returns type

Returns:

  • (Symbol) 


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# File 'lib/store_model/types/one_polymorphic.rb', line 23

def type
  :polymorphic
end