Class: Nestful::Mash

Inherits:
Hash
  • Object
show all
Defined in:
lib/nestful/mash.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(source_hash = nil, default = nil, &blk) ⇒ Mash

Returns a new instance of Mash.



38
39
40
41
 
# File 'lib/nestful/mash.rb', line 38

def initialize(source_hash = nil, default = nil, &blk)
  deep_update(source_hash) if source_hash
  default ? super(default) : super(&blk)
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *args, &blk) ⇒ Object 



167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
 
# File 'lib/nestful/mash.rb', line 167

def method_missing(method_name, *args, &blk)
  return self.[](method_name, &blk) if key?(method_name)
  match = method_name.to_s.match(/(.*?)([?=!_]?)$/)
  case match[2]
  when "="
    self[match[1]] = args.first
  when "?"
    !!self[match[1]]
  when "!"
    initializing_reader(match[1])
  when "_"
    underbang_reader(match[1])
  else
    default(method_name, *args, &blk)
  end
end

Instance Attribute Details

#response ⇒ Object (readonly)

Returns the value of attribute response.



36
37
38
 
# File 'lib/nestful/mash.rb', line 36

def response
  @response
end

Class Method Details

.delete(*args) ⇒ Object 



15
16
17
 
# File 'lib/nestful/mash.rb', line 15

def self.delete(*args)
  from_response(Nestful.delete(*args))
end

.from_response(response) ⇒ Object 



23
24
25
26
27
28
29
30
31
32
 
# File 'lib/nestful/mash.rb', line 23

def self.from_response(response)
  case response.decoded
  when Hash
    self.new(response.decoded)
  when Array
    response.decoded.map {|v| self.new(v) }
  else
    response
  end
end

.get(*args) ⇒ Object 



3
4
5
 
# File 'lib/nestful/mash.rb', line 3

def self.get(*args)
  from_response(Nestful.get(*args))
end

.post(*args) ⇒ Object 



7
8
9
 
# File 'lib/nestful/mash.rb', line 7

def self.post(*args)
  from_response(Nestful.post(*args))
end

.put(*args) ⇒ Object 



11
12
13
 
# File 'lib/nestful/mash.rb', line 11

def self.put(*args)
  from_response(Nestful.put(*args))
end

.request(*args) ⇒ Object 



19
20
21
 
# File 'lib/nestful/mash.rb', line 19

def self.request(*args)
  from_response(Nestful.request(*args))
end

Instance Method Details

#custom_reader(key) {|value| ... } ⇒ Object Also known as: []

Retrieves an attribute set in the Mash. Will convert any key passed in to a string before retrieving.

Yields:

  • (value) 


58
59
60
61
62
 
# File 'lib/nestful/mash.rb', line 58

def custom_reader(key)
  value = regular_reader(convert_key(key))
  yield value if block_given?
  value
end

#custom_writer(key, value) ⇒ Object Also known as: []=

Sets an attribute in the Mash. Key will be converted to a string before it is set, and Hashes will be converted into Mashes for nesting purposes.



67
68
69
 
# File 'lib/nestful/mash.rb', line 67

def custom_writer(key,value) #:nodoc:
  regular_writer(convert_key(key), convert_value(value))
end

#deep_merge(other_hash, &blk) ⇒ Object Also known as: merge

Performs a deep_update on a duplicate of the current mash.



116
117
118
 
# File 'lib/nestful/mash.rb', line 116

def deep_merge(other_hash, &blk)
  dup.deep_update(other_hash, &blk)
end

#deep_update(other_hash, &blk) ⇒ Object Also known as: deep_merge!, update

Recursively merges this mash with the passed in hash, merging each hash in the hierarchy.



123
124
125
126
127
128
129
130
131
132
133
134
135
 
# File 'lib/nestful/mash.rb', line 123

def deep_update(other_hash, &blk)
  other_hash.each_pair do |k,v|
    key = convert_key(k)
    if regular_reader(key).is_a?(Mash) and v.is_a?(::Hash)
      custom_reader(key).deep_update(v, &blk)
    else
      value = convert_value(v, true)
      value = blk.call(key, self[k], value) if blk
      custom_writer(key, value)
    end
  end
  self
end

#delete(key) ⇒ Object 



97
98
99
 
# File 'lib/nestful/mash.rb', line 97

def delete(key)
  super(convert_key(key))
end

#dup ⇒ Object

Duplicates the current mash as a new mash.



103
104
105
 
# File 'lib/nestful/mash.rb', line 103

def dup
  self.class.new(self, self.default)
end

#fetch(key, *args) ⇒ Object 



93
94
95
 
# File 'lib/nestful/mash.rb', line 93

def fetch(key, *args)
  super(convert_key(key), *args)
end

#id ⇒ Object

:nodoc:



45
46
47
 
# File 'lib/nestful/mash.rb', line 45

def id #:nodoc:
  self['id']
end

#initializing_reader(key) ⇒ Object

This is the bang method reader, it will return a new Mash if there isn’t a value already assigned to the key requested.



76
77
78
79
80
 
# File 'lib/nestful/mash.rb', line 76

def initializing_reader(key)
  ck = convert_key(key)
  regular_writer(ck, self.class.new) unless key?(ck)
  regular_reader(ck)
end

#key?(key) ⇒ Boolean Also known as: has_key?, include?, member?

Returns:

  • (Boolean) 


107
108
109
 
# File 'lib/nestful/mash.rb', line 107

def key?(key)
  super(convert_key(key))
end

#regular_dup ⇒ Object 



101
 
# File 'lib/nestful/mash.rb', line 101

alias_method :regular_dup, :dup

#replace(other_hash) ⇒ Object 



154
155
156
157
158
 
# File 'lib/nestful/mash.rb', line 154

def replace(other_hash)
  (keys - other_hash.keys).each { |key| delete(key) }
  other_hash.each { |key, value| self[key] = value }
  self
end

#respond_to?(method_name, include_private = false) ⇒ Boolean

Will return true if the Mash has had a key set in addition to normal respond_to? functionality.

Returns:

  • (Boolean) 


162
163
164
165
 
# File 'lib/nestful/mash.rb', line 162

def respond_to?(method_name, include_private=false)
  return true if key?(method_name) || method_name.to_s.slice(/[=?!_]\Z/)
  super
end

#shallow_merge(other_hash) ⇒ Object

Performs a shallow_update on a duplicate of the current mash



141
142
143
 
# File 'lib/nestful/mash.rb', line 141

def shallow_merge(other_hash)
  dup.shallow_update(other_hash)
end

#shallow_update(other_hash) ⇒ Object

Merges (non-recursively) the hash from the argument, changing the receiving hash



147
148
149
150
151
152
 
# File 'lib/nestful/mash.rb', line 147

def shallow_update(other_hash)
  other_hash.each_pair do |k,v|
    regular_writer(convert_key(k), convert_value(v, true))
  end
  self
end

#type ⇒ Object

:nodoc:



49
50
51
 
# File 'lib/nestful/mash.rb', line 49

def type #:nodoc:
  self['type']
end

#underbang_reader(key) ⇒ Object

This is the under bang method reader, it will return a temporary new Mash if there isn’t a value already assigned to the key requested.



84
85
86
87
88
89
90
91
 
# File 'lib/nestful/mash.rb', line 84

def underbang_reader(key)
  ck = convert_key(key)
  if key?(ck)
    regular_reader(ck)
  else
    self.class.new
  end
end