Module: MonkeyWrench::Hash

Included in:
Hash
Defined in:
lib/monkey_wrench/hash.rb

Instance Method Summary collapse

Instance Method Details

#collect_kv ⇒ Object

Takes a block that returns a [key, value] pair and builds a new hash based on those pairs Courtesy of snuxoll.com/post/2009/02/13/ruby-better-hashcollect



8
9
10
11
12
13
14
15
 
# File 'lib/monkey_wrench/hash.rb', line 8

def collect_kv
  result = {}
  each do |k,v|
    new_k, new_v = yield k, v
    result[new_k] = new_v
  end
  result
end

#collect_kv!(&blk) ⇒ Object 



17
18
19
 
# File 'lib/monkey_wrench/hash.rb', line 17

def collect_kv!(&blk)
  replace(self.collect_kv(&blk))
end

#escape_keys! ⇒ Object 



21
22
23
 
# File 'lib/monkey_wrench/hash.rb', line 21

def escape_keys!
  collect_kv!{|k,v| [CGI.escape(k.to_s), v]}
end

#to_mailchimp(index = nil, parent_name = nil) ⇒ Object 



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
 
# File 'lib/monkey_wrench/hash.rb', line 25

def to_mailchimp(index = nil, parent_name = nil)
  result = self.collect_kv do |k,v|
    if v.is_a?(Array) && v.first.is_a?(Hash)
      i = 0
      v = v.inject({}) do |acc,hash|
        acc.merge!(hash.to_mailchimp(i, k))
        i += 1
        acc
      end
    elsif v.is_a?(Hash)
      if parent_name
        v = v.collect_kv do |key,val| 
          keyname = CGI.escape("#{parent_name.to_s}[#{key.to_s.upcase}]")
          [keyname, val]
        end
      else
        v = { k => v }.to_mailchimp(nil, k)
      end
    elsif v.is_a?(Array)
      results = {}
      i = 0
      v.each do |val|
        keyname = CGI.escape("#{k}[#{i}]")
        results[keyname] = val
        i += 1
      end
      v = results
    end
    k = k.to_s
    k = "[#{index}][#{k.upcase}]" if index
    k = [parent_name, k].join if k != parent_name.to_s
    [CGI.escape(k), v]
  end
  if result.detect{|k,v| v.is_a?(Hash)}
    result.values.first
  else
    result
  end
end