Class: Store

Inherits:
Object
  • Object
show all
Defined in:
lib/store.rb,
lib/store/ref.rb,
lib/store/repo.rb,
lib/store/query.rb,
lib/store/version.rb,
lib/store/data_mapper.rb,
lib/store/entity_mapper.rb

Defined Under Namespace

Classes: DataMapper, EntityMapper, Query, Ref, Repo

Constant Summary collapse

VERSION = 
"0.0.5"

Instance Method Summary collapse

Constructor Details

#initialize(entity_classes, data_mapping, entity_mapping) ⇒ Store

Returns a new instance of Store.



7
8
9
10
11
12
13
 
# File 'lib/store.rb', line 7

def initialize(entity_classes, data_mapping, entity_mapping)
  @entity_classes = entity_classes
  @data_mapping = data_mapping
  @entity_mapping = entity_mapping

  @entity_references = Hash.new
end

Instance Method Details

#build(entity_class_name, attributes = {}) ⇒ Object 



15
16
17
18
19
20
21
22
23
 
# File 'lib/store.rb', line 15

def build(entity_class_name, attributes = {})
  entity = @entity_classes[entity_class_name].new

  attributes.each do |attribute, value|
    entity.public_send :"#{attribute}=", value
  end

  entity
end

#bulk_load(refs) ⇒ Object 



83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
 
# File 'lib/store.rb', line 83

def bulk_load(refs)
  data_mapper = data_mapper_for_ref(refs.first)
  entity_mapper = entity_mapper_for_ref(refs.first)
  entity_class = @entity_classes[refs.first.entity_type]

  references = refs.map(&:reference)
  mapped_entities = data_mapper.bulk_find(references)

  entities = []

  references.each_with_index do |reference, i|
    mapped_entity = mapped_entities[i]

    entity = entity_mapper.new(self).unmap(entity_class, mapped_entity)
    save_entity_reference reference, entity
    entities << entity
  end

  entities
end

#load(refs) ⇒ Object 



62
63
64
65
66
67
68
 
# File 'lib/store.rb', line 62

def load(refs)
  if refs.kind_of? Array
    bulk_load refs
  else
    single_load refs
  end
end

#query(query) ⇒ Object 



46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
 
# File 'lib/store.rb', line 46

def query(query)
  data_mapper = data_mapper_for_query(query)
  entity_mapper = entity_mapper_for_query(query)
  entity_class = @entity_classes[query.entity]

  raise_unless_data_mapper_found(query, data_mapper)

  mapped_entities_with_references = data_mapper.select(query) || {}

  mapped_entities_with_references.map do |reference, mapped_entity|
    entity = entity_mapper.new(self).unmap(entity_class, mapped_entity)
    save_entity_reference reference, entity
    entity
  end
end

#remove(entity) ⇒ Object 



36
37
38
39
40
41
42
43
44
 
# File 'lib/store.rb', line 36

def remove(entity)
  data_mapper = data_mapper_for_entity(entity)
  raise_unless_data_mapper_found(entity, data_mapper)

  reference = find_entity_reference(entity)
  data_mapper.delete(reference)

  remove_entity_reference entity
end

#save(entities) ⇒ Object 



25
26
27
28
29
30
31
32
33
34
 
# File 'lib/store.rb', line 25

def save(entities)
  if entities.kind_of? Array
    entities.map do |entity|
      save_entity(entity)
    end
  else
    entity = entities
    save_entity(entity)
  end
end

#single_load(ref) ⇒ Object 



70
71
72
73
74
75
76
77
78
79
80
81
 
# File 'lib/store.rb', line 70

def single_load(ref)
  data_mapper = data_mapper_for_ref(ref)
  entity_mapper = entity_mapper_for_ref(ref)
  entity_class = @entity_classes[ref.entity_type]
  reference = ref.reference

  mapped_entity = data_mapper.single_find(reference)

  entity = entity_mapper.new(self).unmap(entity_class, mapped_entity)
  save_entity_reference reference, entity
  entity
end