Class: ActiveScaffold::DataStructures::Association::Abstract

Inherits:
Object
  • Object
show all
Defined in:
lib/active_scaffold/data_structures/association/abstract.rb

Direct Known Subclasses

ActiveRecord, Mongoid

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(association) ⇒ Abstract

Returns a new instance of Abstract.



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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 3

def initialize(association)
  @association = association
end

Instance Attribute Details

#reverse(klass = nil) ⇒ Object 



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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 67

def reverse(klass = nil)
  unless polymorphic? || defined?(@reverse)
    @reverse ||= inverse || get_reverse.try(:name)
  end
  @reverse || (get_reverse(klass).try(:name) unless klass.nil?)
end

Instance Method Details

#allow_join? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 9

def allow_join?
  !polymorphic?
end

#belongs_to? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 13

def belongs_to?
  @association.macro == :belongs_to
end

#counter_cache_hack? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 55

def counter_cache_hack?
  false
end

#habtm? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 25

def habtm?
  @association.macro == :has_and_belongs_to_many
end

#has_many? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 21

def has_many?
  @association.macro == :has_many
end

#has_one? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 17

def has_one?
  @association.macro == :has_one
end

#inverse_for?(klass) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 74

def inverse_for?(klass)
  inverse_class = reverse_association(klass).try(:inverse_klass)
  inverse_class.present? && (inverse_class == klass || klass < inverse_class)
end

#polymorphic? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 37

def polymorphic?
  false
end

#quoted_primary_key ⇒ Object 



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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 63

def quoted_primary_key
  raise "define quoted_primary_key method in #{self.class.name} class"
end

#quoted_table_name ⇒ Object 



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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 59

def quoted_table_name
  raise "define quoted_table_name method in #{self.class.name} class"
end

#readonly? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 41

def readonly?
  false
end

#respond_to_target? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 51

def respond_to_target?
  false
end

#reverse_association(klass = nil) ⇒ Object 



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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 79

def reverse_association(klass = nil)
  assoc = if polymorphic?
            get_reverse(klass) unless klass.nil?
          else
            return unless reverse_name = reverse(klass)
            reflect_on_association(reverse_name)
  end
  self.class.new(assoc) if assoc
end

#scope ⇒ Object 



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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 49

def scope; end

#singular? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 29

def singular?
  !collection?
end

#source_reflection ⇒ Object 



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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 47

def source_reflection; end

#through? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 33

def through?
  false
end

#through_reflection ⇒ Object 



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# File 'lib/active_scaffold/data_structures/association/abstract.rb', line 45

def through_reflection; end