Class: MiniDefender::Validator

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(rules, data) ⇒ Validator

Returns a new instance of Validator.



7
8
9
10
11
12
13
14
15
16
 
# File 'lib/mini_defender/validator.rb', line 7

def initialize(rules, data)
  @rules = rules
  @data = data.flatten_keys(keep_roots: true)
  @errors = nil
  @validated = {}
  @coerced = {}
  @expander = RulesExpander.new
  @factory = RulesFactory.new
  @array_patterns = @expander.array_patterns(rules)
end

Instance Attribute Details

#data ⇒ Object (readonly)

Returns the value of attribute data.



5
6
7
 
# File 'lib/mini_defender/validator.rb', line 5

def data
  @data
end

#errors ⇒ Object (readonly)

Returns the value of attribute errors.



5
6
7
 
# File 'lib/mini_defender/validator.rb', line 5

def errors
  @errors
end

#rules ⇒ Object (readonly)

Returns the value of attribute rules.



5
6
7
 
# File 'lib/mini_defender/validator.rb', line 5

def rules
  @rules
end

Instance Method Details

#coerced ⇒ Object 



108
109
110
111
 
# File 'lib/mini_defender/validator.rb', line 108

def coerced
  validate! if @errors.nil?
  @coerced_compacted = compact_expanded(@coerced)
end

#fails? ⇒ Boolean

Returns:

  • (Boolean) 


99
100
101
 
# File 'lib/mini_defender/validator.rb', line 99

def fails?
  !passes?
end

#neighbor_values(key, level = 1) ⇒ Array

Returns:

  • (Array) 


120
121
122
 
# File 'lib/mini_defender/validator.rb', line 120

def neighbor_values(key, level = 1)
  neighbors(key, level).values
end

#neighbors(key, level = 1) ⇒ Hash

Returns:

  • (Hash) 


114
115
116
117
 
# File 'lib/mini_defender/validator.rb', line 114

def neighbors(key, level = 1)
  pattern = leveled_search_pattern(key, level)
  @data.filter { |k, _| k.match?(pattern) }
end

#passes? ⇒ Boolean

Returns:

  • (Boolean) 


94
95
96
97
 
# File 'lib/mini_defender/validator.rb', line 94

def passes?
  validate if @errors.nil?
  @errors.empty?
end

#validate ⇒ Object 



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
 
# File 'lib/mini_defender/validator.rb', line 18

def validate
  unless @errors.nil?
    return
  end

  @errors = {}

  data_rules = @rules.to_h do |k, set|
    [k, @factory.init_set(set)]
  end

  # Set default values for missing data key compared to rules
  data_rules.each do |k, set|
    if !@data.key?(k) || missing_value?(@data[k])
      set.filter{ |r| r.defaults?(self) }.each do |r|
        @data.merge!({k => r.default_value(self)}.flatten_keys(keep_roots: true))
      end
    end
  end

  data_rules = @expander.expand(data_rules, @data)

  data_rules.each do |k, rule_set|
    @errors[k] = []

    value_included = true
    required = rule_set.any? { |r| r.implicit?(self) }

    if !@data.key?(k) || missing_value?(@data[k])
      rule_set.filter{ |r| r.defaults?(self) }.each do |r|
        @data.merge!({k => r.default_value(self)}.flatten_keys(keep_roots: true))
      end
    end

    unless @data.key?(k)
      @errors[k] << 'This field is missing.' if required
      next
    end

    value = coerced = @data[k]
    force_coerce = false

    rule_set.each do |rule|
      next unless rule.active?(self)

      value_included &= !rule.excluded?(self)

      if rule.passes?(k, coerced, self)
        coerced = rule.coerce(coerced)
        force_coerce = rule.force_coerce?
      else
        @errors[k] << rule.error_message(k, coerced, self)
      end
    end

    if force_coerce
      value = coerced
    end

    if @errors[k].empty? && value_included
      @validated[k] = value
      @coerced[k] = coerced
    end
  end

  @errors.reject! { |_, v| v.empty? }
end

#validate! ⇒ Object 



86
87
88
89
90
91
92
 
# File 'lib/mini_defender/validator.rb', line 86

def validate!
  validate if @errors.nil?

  unless @errors.empty?
    raise ValidationError.new('Data validation failed', @errors)
  end
end

#validated ⇒ Object 



103
104
105
106
 
# File 'lib/mini_defender/validator.rb', line 103

def validated
  validate! if @errors.nil?
  @validated_compacted ||= compact_expanded(@validated)
end