Class: ToyModel::AttributeWrapper

Inherits:
Object
  • Object
show all
Defined in:
lib/toy-model/attribute_wrapper.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(column, parent) ⇒ AttributeWrapper

Returns a new instance of AttributeWrapper.



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# File 'lib/toy-model/attribute_wrapper.rb', line 6

def initialize column, parent
  @column = column
  @parent = parent
  @_as = :string
end

Instance Attribute Details

#_as ⇒ Object

Returns the value of attribute _as.



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# File 'lib/toy-model/attribute_wrapper.rb', line 4

def _as
  @_as
end

#_helper ⇒ Object

Returns the value of attribute _helper.



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# File 'lib/toy-model/attribute_wrapper.rb', line 4

def _helper
  @_helper
end

#_options ⇒ Object

Returns the value of attribute _options.



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# File 'lib/toy-model/attribute_wrapper.rb', line 4

def _options
  @_options
end

#column ⇒ Object

Returns the value of attribute column.



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# File 'lib/toy-model/attribute_wrapper.rb', line 4

def column
  @column
end

#parent ⇒ Object

Returns the value of attribute parent.



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# File 'lib/toy-model/attribute_wrapper.rb', line 4

def parent
  @parent
end

Instance Method Details

#as(value) ⇒ Object 



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# File 'lib/toy-model/attribute_wrapper.rb', line 12

def as value
  @_as = value
  enforce_relations
  self
end

#enforce_relations ⇒ Object 



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# File 'lib/toy-model/attribute_wrapper.rb', line 18

def enforce_relations
  @parent.send @_as, @column if [:has_many, :has_and_belongs_to_many, :has_one, :belongs_to].include? @_as
  if [:has_many, :has_one].include? @_as
    related = @column.to_s.singularize.classify.constantize
    related.attribute(@parent.to_s.underscore.gsub(' ', '_').to_sym).as(:belongs_to)
    ToyModel::AttributeObserver.new related
  end
end

#skip_table_column? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/toy-model/attribute_wrapper.rb', line 39

def skip_table_column?
  [:has_many, :has_and_belongs_to_many, :has_one].include? @_as
end

#to_table_column ⇒ Object 



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# File 'lib/toy-model/attribute_wrapper.rb', line 27

def to_table_column
  return nil if skip_table_column?
  return :"#{@column}_id" if @_as == :belongs_to
  @column
end

#to_table_type ⇒ Object 



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# File 'lib/toy-model/attribute_wrapper.rb', line 33

def to_table_type
  return nil if skip_table_column?
  return :integer if @_as == :belongs_to
  @_as
end