Module: Entitainer::ClassMethods

Defined in:
lib/entitainer.rb

Overview

Methods for schema definition.

Instance Method Summary collapse

Instance Method Details

#attributes(*list) ⇒ Object

Used in schema block to define attributes available for the entity.



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# File 'lib/entitainer.rb', line 69

def attributes(*list)
  list.each { |attr| @available_attributes << attr }
end

#available_attributes ⇒ Object

A collection of all available attributes defined in a schema block, id attribute, and _id sufixed attribute for each belongs_to relation.



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# File 'lib/entitainer.rb', line 27

def available_attributes
  @available_attributes ||= []
end

#available_belongs_tos ⇒ Object 



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# File 'lib/entitainer.rb', line 31

def available_belongs_tos
  @available_belongs_tos ||= []
end

#available_has_manys ⇒ Object 



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# File 'lib/entitainer.rb', line 35

def available_has_manys
  @available_has_manys ||= []
end

#belongs_to(*list) ⇒ Object

Used in schema block to define belongs-to type of relation.



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# File 'lib/entitainer.rb', line 74

def belongs_to(*list)
  @available_belongs_tos = []
  list.each do |attr|
    @available_belongs_tos << attr

    relation_id_attr = "#{attr}_id".to_sym
    @available_attributes << relation_id_attr unless @available_attributes.include?(relation_id_attr)
  end
end

#has_many(*list) ⇒ Object

Used in schema block to define has-many type of relation. rubocop:disable Naming/PredicateName



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# File 'lib/entitainer.rb', line 86

def has_many(*list)
  @available_has_manys = []
  list.each { |attr| @available_has_manys << attr }
end

#schema ⇒ Object

Defines entity attributes and relations.

schema do
  attributes # ...
  belongs_to # ...
  has_many # ...
end



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# File 'lib/entitainer.rb', line 45

def schema
  @available_attributes = []

  yield

  add_id_attribute
  define_methods

  define_method(:initialize) do |**args, &block|
    assign_values(args)
    assign_belongs_to(args)
    assign_has_many

    block&.call(self)

    freeze_it
  end

  define_method(:==) do |other|
    cmp_with(other)
  end
end