Class: JsonDumper::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/json_dumper/base.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(entity = nil) ⇒ Base

Returns a new instance of Base.



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# File 'lib/json_dumper/base.rb', line 5

def initialize(entity = nil)
  self.return_nils = entity.nil?
  self.entity = entity
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args, &block) ⇒ Object 



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# File 'lib/json_dumper/base.rb', line 63

def method_missing(name, *args, &block)
  if entity.respond_to? name
    entity.send(name, *args, &block)
  else
    super name, *args, &block
  end
end

Instance Attribute Details

#entity ⇒ Object

Returns the value of attribute entity.



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# File 'lib/json_dumper/base.rb', line 3

def entity
  @entity
end

#return_nils ⇒ Object

Returns the value of attribute return_nils.



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# File 'lib/json_dumper/base.rb', line 3

def return_nils
  @return_nils
end

Class Method Details

.instance ⇒ Object 



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# File 'lib/json_dumper/base.rb', line 75

def self.instance
  @instance ||= new
end

.method_missing(name, *args, &block) ⇒ Object 



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# File 'lib/json_dumper/base.rb', line 10

def self.method_missing(name, *args, &block)
  name_sym = name
  name = name.to_s
  value = args[0]
  if name.start_with?('fetch_')
    return Delayed.new(name.gsub('fetch_', ''), value, args[1..-1], self)
  end
  if instance.respond_to?(name)
    if value.respond_to?(:each) && !value.respond_to?(:each_pair)
      value.map do |ent|
        new_dumper = new(ent)
        if new_dumper.return_nils
          return nil
        end
        result = new_dumper.send(name, *(args[1..-1]), &block)
        if result.respond_to?(:each) && !result.respond_to?(:each_pair)
          result = DumperArray.new(result)
        else
          result = DumperHash.new(result)
        end
        preload_method_name = "#{name}_preload"
        result.preload = instance.respond_to?(preload_method_name) ? instance.send(preload_method_name) : {}
        result
      end
    elsif name.end_with?('_preload')
      instance.send(name)
    else
      new_dumper = new(value)
      if new_dumper.return_nils
        return nil
      end
      result = new_dumper.send(name, *(args[1..-1]), &block)
      if result.respond_to?(:each) && !result.respond_to?(:each_pair)
        result = DumperArray.new(result)
      else
        result = DumperHash.new(result)
      end

      preload_method_name = "#{name}_preload"
      result.preload = instance.respond_to?(preload_method_name) ? instance.send(preload_method_name) : {}
      result
    end
  elsif name.end_with?('_preload') && instance.respond_to?(name.gsub('_preload', ''))
    return {}
  else
    super name_sym, *args, &block
  end
end

.respond_to_missing?(method_name, _ = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/json_dumper/base.rb', line 59

def self.respond_to_missing?(method_name, _ = false)
  new.respond_to? method_name
end

Instance Method Details

#respond_to_missing?(method_name, _ = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/json_dumper/base.rb', line 71

def respond_to_missing?(method_name, _ = false)
  entity.respond_to? method_name
end