Module: DataMapper::Model

Includes:
LdapResource
Defined in:
lib/ldap_resource.rb

Defined Under Namespace

Modules: LdapResource

Constant Summary collapse

Immutable = 
Resource::PersistenceState::Immutable
Clean = 
Resource::PersistenceState::Clean

Instance Method Summary collapse

Methods included from LdapResource

#authenticate, #dn_prefix, #ldap_properties, #multivalue_field, #treebase

Instance Method Details

#load(records, query) ⇒ Object 



16
17
18
19
20
21
22
23
24
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
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
 
# File 'lib/ldap_resource.rb', line 16

def load(records, query)
  repository      = query.repository
  repository_name = repository.name
  fields          = query.fields
  discriminator   = properties(repository_name).discriminator
  no_reload       = !query.reload?
  
  field_map = {}
  fields.each { |property| field_map[property] = property.field }
  
  records.map do |record|
    identity_map = nil
    key_values   = nil
    resource     = nil
    
    case record
    when Hash
      # remap fields to use the Property object
      record = record.dup
      field_map.each { |property, field| record[property] = record.delete(field) if record.key?(field) }

      model     = discriminator && discriminator.load(record[discriminator]) || self
      model_key = model.key(repository_name)

      resource = if model_key.valid?(key_values = record.values_at(*model_key))
        identity_map = repository.identity_map(model)
        identity_map[key_values]
      end

      resource ||= model.allocate

      fields.each do |property|
        next if no_reload && property.loaded?(resource)

        value = record[property]

        value = property.load(value)

        property.set!(resource, value)
      end

    when Resource
      model     = record.model
      model_key = model.key(repository_name)
      
      resource = if model_key.valid?(key_values = record.key)
                   identity_map = repository.identity_map(model)
                   identity_map[key_values]
                 end
      
      resource ||= model.allocate
      
      fields.each do |property|
        next if no_reload && property.loaded?(resource)
        
        property.set!(resource, property.get!(record))
      end
    end
    
    resource.instance_variable_set(:@_repository, repository)
    
    if identity_map
      if DataMapper::VERSION =~ /^1.[0-1]/
        resource.persisted_state = Clean.new(resource) unless resource.persisted_state?
      else               
        resource.persistence_state = Clean.new(resource) unless resource.persistence_state?
      end

      # defer setting the IdentityMap so second level caches can
      # record the state of the resource after loaded
      identity_map[key_values] = resource
    else
      resource.persisted_state = Immutable.new(resource)
    end
    
    resource
  end
end