Class: ActiveRecord::Base

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

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.record_to_dao(record, *args) ⇒ Object 



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# File 'lib/dao/active_record.rb', line 29

def Base.record_to_dao(record, *args)
# setup for eff'ing madness        
#
  model = record.class
  map = Dao.map
  map[:model] = model.name.underscore
  map[:id] = record.id

# yank out options if they are patently obvious...
#
  if args.size == 2 and args.first.is_a?(Array) and args.last.is_a?(Hash)
    options = Dao.map(args.last)
    args = args.first
  else
    options = nil
  end

# get base to_dao from class
#
  base = model.to_dao

# opts
# 
  opts = %w( include includes with exclude excludes without )

  extract_options =
    proc do |array|
      last = array.last
      if last.is_a?(Hash)
        last = Dao.map(last)
        if opts.any?{|opt| last.has_key?(opt)}
          array.pop
          break(last)
        end
      end
      Map.new
    end

# handle case where options are bundled in args...
#
  options ||= extract_options[args]

# use base options iff none provided
#
  base_options = extract_options[base]
  if options.blank? and !base_options.blank?
    options = base_options
  end

# refine the args with includes iff found in options
#
  if options.has_key?(:include) or options.has_key?(:includes) or options.has_key?(:with)
    args.replace(base) if args.empty?
    args.push(options[:include]) if options[:include]
    args.push(options[:includes]) if options[:includes]
    args.push(options[:with]) if options[:with]
  end

# take passed in args or model defaults
#
  list = args.empty? ? base : args
  list = column_names if list.empty?

# okay - go!
#
  list.each do |attr|
    if attr.is_a?(Array)
      related, *argv = attr
      v = record.send(related)
      value = v.respond_to?(:to_dao) ? v.to_dao(*argv) : v
      map[related] = value
      next
    end

    if attr.is_a?(Hash)
      attr.each do |related, argv|
        v = record.send(related)
        value = v.respond_to?(:to_dao) ? v.to_dao(*argv) : v
        map[related] = value
      end
      next
    end

    value = record.send(attr)

    if value.respond_to?(:to_dao)
      map[attr] = value.to_dao
      next
    end

    if value.is_a?(Array)
      map[attr] = value.map{|val| val.respond_to?(:to_dao) ? val.to_dao : val}
      next
    end

    map[attr] = value
  end

  if map.has_key?(:_id) and not map.has_key?(:id)
    map[:id] = map[:_id]
  end

# refine the map with excludes iff passed as options
#
  if options.has_key?(:exclude) or options.has_key?(:excludes) or options.has_key?(:without)
    [options[:exclude], options[:excludes], options[:without]].each do |paths|
      paths = Array(paths)
      next if paths.blank?
      paths.each do |path|
        map.rm(path)
      end
    end
  end

  map
end

.to_dao(*args) ⇒ Object 



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# File 'lib/dao/active_record.rb', line 13

def Base.to_dao(*args)
  if args.first.is_a?(Base)
    record_to_dao(record = args.shift, *args)
  else
    @to_dao ||= (
      names = column_names ### + reflect_on_all_associations.map(&:name)
    )
    @to_dao = Array(args) unless args.empty?
    @to_dao
  end
end

.to_dao=(*args) ⇒ Object 



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# File 'lib/dao/active_record.rb', line 25

def Base.to_dao=(*args)
  to_dao(*args)
end

Instance Method Details

#to_dao(*args) ⇒ Object 



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# File 'lib/dao/active_record.rb', line 146

def to_dao(*args)
  record = self
  model = record.class
  model.record_to_dao(record, *args)
end