Module: DBViewCTI::Model::CTI::Hierarchy::ClassMethods

Defined in:
lib/db_view_cti/model/cti/hierarchy.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#cti_ascendants ⇒ Object

Returns the value of attribute cti_ascendants.



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# File 'lib/db_view_cti/model/cti/hierarchy.rb', line 17

def cti_ascendants
  @cti_ascendants
end

#cti_association_proxies ⇒ Object

Returns the value of attribute cti_association_proxies.



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# File 'lib/db_view_cti/model/cti/hierarchy.rb', line 17

def cti_association_proxies
  @cti_association_proxies
end

#cti_descendants ⇒ Object

Returns the value of attribute cti_descendants.



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# File 'lib/db_view_cti/model/cti/hierarchy.rb', line 17

def cti_descendants
  @cti_descendants
end

Instance Method Details

#cti_all_descendants ⇒ Object

returns a list of all descendants



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# File 'lib/db_view_cti/model/cti/hierarchy.rb', line 42

def cti_all_descendants
  result = []
  block = Proc.new do |klass, descendants|
    result << klass
    descendants.each(&block)
  end
  @cti_descendants ||= {}
  @cti_descendants.each(&block)
  result
end

#cti_base_class? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/db_view_cti/model/cti/hierarchy.rb', line 9

def cti_base_class?
  !!@cti_base_class
end

#cti_derived_class? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/db_view_cti/model/cti/hierarchy.rb', line 13

def cti_derived_class?
  !!@cti_derived_class
end

#cti_register_ascendants(ascendants) ⇒ Object

registers the ascendants of the current class. Called on this class by the parent class. ascendants: array of ascendants. The first element is the highest level class, derived classes follow, the last element is the parent of this class.



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# File 'lib/db_view_cti/model/cti/hierarchy.rb', line 37

def cti_register_ascendants(ascendants)
  @cti_ascendants = ascendants
end

#cti_register_descendants(class_name, descendants = {}) ⇒ Object

registers a derived class and its descendants in the current class class_name: name of derived class (the one calling cti_register_descendants on this class) descendants: the descendants of the derived class



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# File 'lib/db_view_cti/model/cti/hierarchy.rb', line 22

def cti_register_descendants(class_name, descendants = {})
  @cti_descendants ||= {}
  @cti_descendants[class_name] = descendants
  if cti_derived_class?
    # call up the chain. This will also cause the register_ascendants callbacks
    self.superclass.cti_register_descendants(self.name, @cti_descendants)
  end
  # call back to calling class
  @cti_ascendants ||= []
  class_name.constantize.cti_register_ascendants(@cti_ascendants + [ self.name ])
end