Class: Teton::Stores::Memory

Inherits:
Object
  • Object
show all
Defined in:
lib/teton/stores/memory.rb

Overview

Plugs in a light-weight store that can be used for modeling other stores.

Constant Summary collapse

CREATED_AT_KEY = 
'created_at'
IDS_KEY = 
'ids'
INDICES_KEY = 
'indices'
META_KEY = 
'meta'
DATA_KEY = 
'data'
UPDATED_AT_KEY = 
'updated_at'

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(store = {}) ⇒ Memory

Returns a new instance of Memory.



16
17
18
 
# File 'lib/teton/stores/memory.rb', line 16

def initialize(store = {})
  @store = store || {}
end

Instance Attribute Details

#store ⇒ Object (readonly)

Returns the value of attribute store.



14
15
16
 
# File 'lib/teton/stores/memory.rb', line 14

def store
  @store
end

Instance Method Details

#count(key) ⇒ Object 



52
53
54
55
56
57
58
59
60
61
62
 
# File 'lib/teton/stores/memory.rb', line 52

def count(key)
  store_pointer = traverse_to_last(key)

  return 0 unless store_pointer

  if key.resource?
    (store_pointer.dig(key.last_part, IDS_KEY) || {}).keys.length
  else
    store_pointer.dig(key.last_part, DATA_KEY) ? 1 : 0
  end
end

#del(key) ⇒ Object 



42
43
44
45
46
47
48
49
50
 
# File 'lib/teton/stores/memory.rb', line 42

def del(key)
  store_pointer = traverse_to_last(key)

  return self unless store_pointer

  store_pointer.delete(key.last_part)

  self
end

#from_json!(json) ⇒ Object 



80
81
82
83
84
 
# File 'lib/teton/stores/memory.rb', line 80

def from_json!(json)
  @store = JSON.parse(json)

  self
end

#get(key, limit: nil, skip: nil) ⇒ Object 



30
31
32
33
34
35
36
37
38
39
40
 
# File 'lib/teton/stores/memory.rb', line 30

def get(key, limit: nil, skip: nil)
  store_pointer = traverse_to_last(key)

  return unless store_pointer

  if key.resource?
    entries(key, store_pointer, key.last_part, limit: limit, skip: skip)
  else
    entry(key, store_pointer, key.last_part)
  end
end

#load!(path) ⇒ Object

Persistence API



66
67
68
 
# File 'lib/teton/stores/memory.rb', line 66

def load!(path)
  from_json!(File.read(path))
end

#save!(path) ⇒ Object 



70
71
72
73
74
75
76
77
78
 
# File 'lib/teton/stores/memory.rb', line 70

def save!(path)
  dir = File.dirname(path)

  FileUtils.mkdir_p(dir)

  File.write(path, to_json)

  self
end

#set(key, data) ⇒ Object

Main Object API



22
23
24
25
26
27
28
 
# File 'lib/teton/stores/memory.rb', line 22

def set(key, data)
  store_pointer = insert_traverse_to_last(key)

  upsert(store_pointer, key.last_part, data)

  self
end

#to_json(*_args) ⇒ Object 



86
87
88
 
# File 'lib/teton/stores/memory.rb', line 86

def to_json(*_args)
  store.to_json
end