Module: Arcade::Support::Model

Included in:
Database, Query, Vertex, Vertex, Array, Hash
Defined in:
lib/arcade/support/model.rb

Instance Method Summary collapse

Instance Method Details

#_allocate_model(response = nil, auto = Config.autoload) ⇒ Object

used by array#allocate_model



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# File 'lib/arcade/support/model.rb', line 19

def _allocate_model response=nil, auto = Config.autoload

  if response.is_a? Hash
    # save rid to a safe place
    temp_rid = response.delete( :"@rid"  ) || response.delete( :rid ) || "#0:0"
    type     = response.delete( :"@type" ) || response.delete( :type )  || nil
    cat      = response.delete( :"@cat"  ) || response.delete( :cat )  || "d"

    return response if type.nil?
    # extract type infos  and convert to database-name
    namespace, type_name = type.camelcase_and_namespace
    namespace = self.namespace if namespace.nil?
    # autoconvert rid's in attributes to model-records  (exclude edges!)
    if auto && !(cat.to_s =='e')
      response.transform_values do  |x|
        case x
        when String
          x.rid? ?  x.load_rid : x                   # follow links
        when Array
          a =[]
          x.map do | y |
            # Thread.new do  ## using thread or fiber decreases the performance significantly.
              if y.is_a?(Hash) && y.include?(:@type)   # if embedded documents are present, load them
                _allocate_model(y,false)
              elsif y.rid?                             # if links are present, load the object
                y.load_rid(false) # do not autoload further records, prevents from recursive locking
              else
                y
              end
           # end
          end
        when Hash
          if x.include?(:@type)
            #x.allocate_model(false)
            _allocate_model(x,false)
          else
            x.transform_values!{|z|  z.rid? ?  z.load_rid(false) : z }
          end
        else
          x
        end
      end
    end
    # choose the appropriate class
    klass=  Dry::Core::ClassBuilder.new(  name: type_name, parent: nil, namespace: namespace ).call
    #
  begin
    # create a new object of that  class with the appropriate attributes
    new = klass.new  **response.merge( rid: temp_rid  )
  rescue ::ArgumentError => e
    raise  "Allocation of class #{klass.to_s} failed"
  end
    # map additional attributes to `input`
    v =  response.except  *new.attributes.keys
    v.empty? ?  new  :  new.new( values: v.except( :"@in", :"@out" ) )
 elsif response.is_a? Array
   puts "Allocate_model..detected array"
   ## recursive behavior, just in case
   response.map{ | y | _allocate_model y, auto }
 elsif response.rid?
   # Autoload rid's
   response.load_rid
 #  auto ? response.load_rid : response
 else
   response
  end
end

#resolve_edge_name(*edge_names) ⇒ Object 



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# File 'lib/arcade/support/model.rb', line 5

def resolve_edge_name *edge_names
  edge_names.map do | edge_name |
    case  edge_name
    when nil
      ""
    when Class
      "'" + edge_name.database_name + "'"
    when String
      "'" + edge_name + "'"
    end
  end.join(',')
end