Class: ActionDispatch::Http::ParameterFilter::CompiledFilter

Inherits:
Object
  • Object
show all
Defined in:
lib/action_dispatch/http/parameter_filter.rb

Overview

:nodoc:

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(regexps, blocks) ⇒ CompiledFilter

Returns a new instance of CompiledFilter.



43
44
45
46
 
# File 'lib/action_dispatch/http/parameter_filter.rb', line 43

def initialize(regexps, blocks)
  @regexps = regexps
  @blocks  = blocks
end

Instance Attribute Details

#blocks ⇒ Object (readonly)

Returns the value of attribute blocks.



41
42
43
 
# File 'lib/action_dispatch/http/parameter_filter.rb', line 41

def blocks
  @blocks
end

#regexps ⇒ Object (readonly)

Returns the value of attribute regexps.



41
42
43
 
# File 'lib/action_dispatch/http/parameter_filter.rb', line 41

def regexps
  @regexps
end

Class Method Details

.compile(filters) ⇒ Object 



21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
 
# File 'lib/action_dispatch/http/parameter_filter.rb', line 21

def self.compile(filters)
  return lambda { |params| params.dup } if filters.empty?

  strings, regexps, blocks = [], [], []

  filters.each do |item|
    case item
    when Proc
      blocks << item
    when Regexp
      regexps << item
    else
      strings << item.to_s
    end
  end

  regexps << Regexp.new(strings.join('|'), true) unless strings.empty?
  new regexps, blocks
end

Instance Method Details

#call(original_params) ⇒ Object 



48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
 
# File 'lib/action_dispatch/http/parameter_filter.rb', line 48

def call(original_params)
  filtered_params = {}

  original_params.each do |key, value|
    if regexps.any? { |r| key =~ r }
      value = FILTERED
    elsif value.is_a?(Hash)
      value = call(value)
    elsif value.is_a?(Array)
      value = value.map { |v| v.is_a?(Hash) ? call(v) : v }
    elsif blocks.any?
      key = key.dup if key.duplicable?
      value = value.dup if value.duplicable?
      blocks.each { |b| b.call(key, value) }
    end

    filtered_params[key] = value
  end

  filtered_params
end