1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
module AttributeNormalizer
def self.included(base)
base.extend ClassMethods
end
module ClassMethods
def normalize_attributes(*attributes, &block)
options = attributes.last.is_a?(::Hash) ? attributes.pop : {}
normalizers = [ options[:with] ].flatten.compact
normalizers = [ options[:before] ].flatten.compact if block_given? && normalizers.empty?
post_normalizers = [ options[:after] ].flatten.compact if block_given?
if normalizers.empty? && !block_given?
normalizers = AttributeNormalizer.configuration.default_normalizers # the default normalizers
end
attributes.each do |attribute|
define_method "normalize_#{attribute}" do |value|
normalized = value
normalizers.each do |normalizer_name|
unless normalizer_name.kind_of?(Symbol)
normalizer_name, options = normalizer_name.keys[0], normalizer_name[ normalizer_name.keys[0] ]
end
normalizer = AttributeNormalizer.configuration.normalizers[normalizer_name]
raise AttributeNormalizer::MissingNormalizer.new("No normalizer was found for #{normalizer_name}") unless normalizer
normalized = normalizer.respond_to?(:normalize) ? normalizer.normalize( normalized , options) : normalizer.call(normalized, options)
end
normalized = block_given? ? yield(normalized) : normalized
if block_given?
post_normalizers.each do |normalizer_name|
unless normalizer_name.kind_of?(Symbol)
normalizer_name, options = normalizer_name.keys[0], normalizer_name[ normalizer_name.keys[0] ]
end
normalizer = AttributeNormalizer.configuration.normalizers[normalizer_name]
raise AttributeNormalizer::MissingNormalizer.new("No normalizer was found for #{normalizer_name}") unless normalizer
normalized = normalizer.respond_to?(:normalize) ? normalizer.normalize( normalized , options) : normalizer.call(normalized, options)
end
end
normalized
end
self.send :private, "normalize_#{attribute}"
if method_defined?(:"#{attribute}=")
alias_method "old_#{attribute}=", "#{attribute}="
define_method "#{attribute}=" do |value|
normalized_value = self.send(:"normalize_#{attribute}", value)
self.send("old_#{attribute}=", normalized_value)
end
else
define_method "#{attribute}=" do |value|
super(self.send(:"normalize_#{attribute}", value))
end
end
end
end
alias :normalize_attribute :normalize_attributes
def normalize_default_attributes
AttributeNormalizer.configuration.default_attributes.each do |attribute_name, options|
normalize_attribute(attribute_name, options) if self.column_names.include?(attribute_name)
end
end
# def inherited(subclass)
# super
# if subclass.name.present? && subclass.respond_to?(:table_exists?) && (subclass.table_exists? rescue false)
# subclass.normalize_default_attributes
# end
# end
end
end
|
