Module: Dynamoid::IdentityMap::ClassMethods

Defined in:
lib/dynamoid/identity_map.rb

Instance Method Summary collapse

Instance Method Details

#find_by_id(id, options = {}) ⇒ Object 



30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
 
# File 'lib/dynamoid/identity_map.rb', line 30

def find_by_id(id, options = {})
  return super if identity_map_off?

  key = id.to_s

  if range_key = options[:range_key]
    key += "::#{range_key}"
  end

  if identity_map[key]
    identity_map[key]
  else
    super
  end
end

#from_database(attrs = {}) ⇒ Object 



14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
 
# File 'lib/dynamoid/identity_map.rb', line 14

def from_database(attrs = {})
  return super if identity_map_off?

  key = identity_map_key(attrs)
  document = identity_map[key]

  if document.nil?
    document = super
    identity_map[key] = document
  else
    document.load(attrs)
  end

  document
end

#identity_map ⇒ Object 



10
11
12
 
# File 'lib/dynamoid/identity_map.rb', line 10

def identity_map
  @identity_map ||= {}
end

#identity_map_key(attrs) ⇒ Object 



46
47
48
49
50
51
52
 
# File 'lib/dynamoid/identity_map.rb', line 46

def identity_map_key(attrs)
  key = attrs[hash_key].to_s
  if range_key
    key += "::#{attrs[range_key]}"
  end
  key
end

#identity_map_off? ⇒ Boolean

Returns:

  • (Boolean) 


58
59
60
 
# File 'lib/dynamoid/identity_map.rb', line 58

def identity_map_off?
  !identity_map_on?
end

#identity_map_on? ⇒ Boolean

Returns:

  • (Boolean) 


54
55
56
 
# File 'lib/dynamoid/identity_map.rb', line 54

def identity_map_on?
  Dynamoid::Config.identity_map
end