Class: ODM::Parser

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

Instance Method Summary collapse

Constructor Details

#initialize(*args, &block) ⇒ Parser

Returns a new instance of Parser.



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# File 'lib/odm.rb', line 95

def initialize *args, &block

  @classes_instance= Classes.new(*args,&block)
  @instance_variables= args.select{|e|(e.class <= ::Array)}.select{|ary|(ary.size == 2)}

  #> set deepness level to 1
  @level= 0

end

Instance Method Details

#level(&block) ⇒ Object 



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# File 'lib/odm.rb', line 105

def level &block
  @level += 1
  var= block.call unless block.nil?
  @level -= 1
  return var
end

#parse(obj, *args, &block) ⇒ Object 



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# File 'lib/odm.rb', line 112

def parse(obj,*args,&block)

  get_class= Proc.new do |object|
    klass= @classes_instance.__send__(ODM::Helper.class?( object.class ).to_s.downcase)
    return object if klass.nil?
    klass #> pass klass value
  end

  # duplicate obj
  begin
    obj= obj.dup
  rescue Exception
    begin
      obj= obj.clone
    rescue TypeError
    end
  end

  @classes_instance.class_leveler(@level)
  case ODM::Helper.class?( obj.class ).to_s.downcase.to_sym

    when :array

      klass= get_class.call(obj)
      var= nil

      return level do
        var= klass[ *obj.map!{ |e| self.parse(e) } ]
        @instance_variables.each do |ary|
          var.instance_variable_set( "@#{ary[0]}",ary[1] )
        end

        var #> return and shift down level
      end

    when :hash

      klass= get_class.call(obj)
      return level do

        var= nil
        begin
          var= obj.map{ |k,v| { self.parse(k) => self.parse(v) } }
          var= klass[ *var ]
        rescue ArgumentError
          var= ODM::Helper.array_to_hash_merge_parser(klass,var)
        end

        @instance_variables.each do |ary|
          var.instance_variable_set( "@#{ary[0]}",ary[1] )
        end

        var #> return and shift down level
      end

    else

      begin

        klass= get_class.call(obj)
        var= klass.new(obj) #> ,*args,&block

        @instance_variables.each do |ary|
          var.instance_variable_set( "@#{ary[0]}",ary[1] )
        end

        return var

      rescue ::NoMethodError, ::ArgumentError
        return obj
      end

  end

end

#parse_json(obj, *args) ⇒ Object 



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# File 'lib/odm.rb', line 188

def parse_json(obj,*args)
  require 'json'
  self.parse(JSON.parse(obj),*args)
end

#parse_safe_yaml(obj, *args) ⇒ Object Also known as: parse_safe_yml 



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# File 'lib/odm.rb', line 200

def parse_safe_yaml(obj,*args)
  require 'yaml'
  self.parse(YAML.safe_load(obj),*args)
end

#parse_yaml(obj, *args) ⇒ Object Also known as: parse_yml 



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# File 'lib/odm.rb', line 193

def parse_yaml(obj,*args)
  require 'yaml'
  self.parse(YAML.load(obj),*args)
end

#state ⇒ Object 



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# File 'lib/odm.rb', line 207

def state

  tmp_hash= {}
  @classes_instance.instance_variables.each { |ivar|
     tmp_hash.merge!({ ivar.to_s.sub('@','').to_sym => @classes_instance.instance_variable_get(ivar) })
  }

  return tmp_hash

end