Class: Chewy::Fields::Base

Inherits:
Object show all
Defined in:
lib/chewy/fields/base.rb

Direct Known Subclasses

Root

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, options = {}) ⇒ Base

Returns a new instance of Base.



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# File 'lib/chewy/fields/base.rb', line 7

def initialize(name, options = {})
  @name = name.to_sym
  @options = options.deep_symbolize_keys
  @value = @options.delete(:value)
  @children = []
end

Instance Attribute Details

#children ⇒ Object (readonly)

Returns the value of attribute children.



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# File 'lib/chewy/fields/base.rb', line 4

def children
  @children
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/chewy/fields/base.rb', line 4

def name
  @name
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/chewy/fields/base.rb', line 4

def options
  @options
end

#parent ⇒ Object

Returns the value of attribute parent.



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# File 'lib/chewy/fields/base.rb', line 5

def parent
  @parent
end

#value ⇒ Object (readonly)

Returns the value of attribute value.



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# File 'lib/chewy/fields/base.rb', line 4

def value
  @value
end

Instance Method Details

#compose(object, *parent_objects) ⇒ Object 



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# File 'lib/chewy/fields/base.rb', line 33

def compose(object, *parent_objects)
  objects = ([object] + parent_objects.flatten).uniq

  result = if value && value.is_a?(Proc)
    if value.arity.zero?
      object.instance_exec(&value)
    elsif value.arity < 0
      value.call(*object)
    else
      value.call(*objects.first(value.arity))
    end
  elsif object.is_a?(Hash)
    if object.key?(name)
      object[name]
    else
      object[name.to_s]
    end
  else
    object.send(name)
  end

  if children.present? && !multi_field?
    result = if result.respond_to?(:to_ary)
      result.to_ary.map { |item| compose_children(item, *objects) }
    else
      compose_children(result, *objects)
    end
  end

  { name => result }
end

#mappings_hash ⇒ Object 



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# File 'lib/chewy/fields/base.rb', line 22

def mappings_hash
  mapping = if children.present?
    { (multi_field? ? :fields : :properties) => children.map(&:mappings_hash).inject(:merge) }
  else
    {}
  end
  mapping.reverse_merge!(options)
  mapping.reverse_merge!(type: (children.present? ? 'object' : 'string'))
  { name => mapping }
end

#multi_field? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chewy/fields/base.rb', line 14

def multi_field?
  children.present? && !object_field?
end

#object_field? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chewy/fields/base.rb', line 18

def object_field?
  (children.present? && options[:type].blank?) || %w(object nested).include?(options[:type].to_s)
end