Module: Mappable::Mapping

Defined in:
lib/mappable/mapping.rb

Overview

Defines what fields to map

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.create(base_module, name, options = {}, &block) ⇒ Object 



70
71
72
73
74
75
76
77
 
# File 'lib/mappable/mapping.rb', line 70

def self.create(base_module, name, options = {}, &block)
  options[:class_name] ||= ::Mappable::Utils.classify_name(name.to_s) + 'Mapping'
  kls = Class.new(options[:base_class] || Object)
  kls = base_module.const_set(options[:class_name], kls)
  kls.send(:include, ::Mappable::Mapping)
  kls.class_eval(&block) if block
  kls
end

.default_mapping_options(src, dest) ⇒ Object 



11
12
13
14
15
16
17
18
19
20
 
# File 'lib/mappable/mapping.rb', line 11

def self.default_mapping_options(src, dest)
  {
    src: src.to_sym,
    src_getter: src.to_s.freeze,
    src_setter: "#{src}=",
    dest: dest.to_sym,
    dest_getter: dest.to_s.freeze,
    dest_setter: "#{dest}="
  }
end

.included(base) ⇒ Object 



6
7
8
9
 
# File 'lib/mappable/mapping.rb', line 6

def self.included(base)
  base.extend InheritanceHelper::Methods
  base.extend ClassMethods
end

Instance Method Details

#call_method(model, method) ⇒ Object 



59
60
61
62
63
64
65
66
67
68
 
# File 'lib/mappable/mapping.rb', line 59

def call_method(model, method)
  case method
  when Symbol
    model.public_send(method)
  when Proc
    model.instance_eval(&method)
  else
    raise("wrong type, failed to call method #{method}")
  end
end

#map(src_model, dest_model) ⇒ Object 



43
44
45
46
47
48
49
50
 
# File 'lib/mappable/mapping.rb', line 43

def map(src_model, dest_model)
  self.class.mappings.each do |_, options|
    next if skip?(src_model, dest_model, options)

    dest_model.public_send(options[:dest_setter], src_model.public_send(options[:src_getter]))
  end
  dest_model
end

#skip?(src_model, dest_model, options) ⇒ Boolean

Returns:

  • (Boolean) 


52
53
54
55
56
57
 
# File 'lib/mappable/mapping.rb', line 52

def skip?(src_model, dest_model, options)
  return true if options[:if] && !call_method(dest_model, options[:if])
  return true if options[:unless] && call_method(dest_model, options[:unless])

  false
end