Class: CFoundry::V2::Model

Inherits:
Object
  • Object
show all
Defined in:
lib/cfoundry/v2/model.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(id, client, manifest = nil) ⇒ Model

Returns a new instance of Model.



99
100
101
102
103
104
 
# File 'lib/cfoundry/v2/model.rb', line 99

def initialize(id, client, manifest = nil)
  @id = id
  @client = client
  @manifest = manifest
  @diff = {}
end

Instance Attribute Details

#id ⇒ Object (readonly)

Returns the value of attribute id.



97
98
99
 
# File 'lib/cfoundry/v2/model.rb', line 97

def id
  @id
end

Class Method Details

.attribute(name, opts = {}) ⇒ Object 



8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
# File 'lib/cfoundry/v2/model.rb', line 8

def attribute(name, opts = {})
  default = opts[:default] || nil
  defaults[name] = default if default

  define_method(name) {
    manifest[:entity][name] || default
  }

  define_method(:"#{name}=") { |val|
    @manifest ||= {}
    @manifest[:entity] ||= {}
    @manifest[:entity][name] = val
    @diff[name] = val
  }
end

.defaults ⇒ Object 



4
5
6
 
# File 'lib/cfoundry/v2/model.rb', line 4

def defaults
  @defaults ||= {}
end

.to_many(plural, opts = {}) ⇒ Object 



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
94
 
# File 'lib/cfoundry/v2/model.rb', line 50

def to_many(plural, opts = {})
  singular = plural.to_s.sub(/s$/, "").to_sym

  object = opts[:as] || singular
  plural_object = object.to_s.sub(/s$/, "").to_sym

  define_method(plural) {
    if manifest[:entity].key? plural
      manifest[:entity][plural].collect do |json|
        @client.send(:"make_#{object}", json)
      end
    else
      @client.send(
        :"#{plural_object}_from",
        send("#{plural}_url"),
        opts[:depth] || 1)
    end
  }

  define_method(:"#{plural}_url") {
    manifest[:entity][:"#{plural}_url"]
  }

  # TODO: these are hacky
  define_method(:"add_#{singular}") { |x|
    @client.base.request_path(
      :put,
      ["v2", "#{object_name}s", @id, plural, x.id],
      nil => :json)
  }

  define_method(:"remove_#{singular}") {
    @client.base.request_path(
      :delete,
      ["v2", "#{object_name}s", @id, plural, x.id],
      nil => :json)
  }

  define_method(:"#{plural}=") { |xs|
    @manifest ||= {}
    @manifest[:entity] ||= {}
    @manifest[:entity][:"#{singular}_guids"] =
      @diff[:"#{singular}_guids"] = xs.collect(&:id)
  }
end

.to_one(name, opts = {}) ⇒ Object 



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
 
# File 'lib/cfoundry/v2/model.rb', line 24

def to_one(name, opts = {})
  obj = opts[:as] || name

  define_method(name) {
    if manifest[:entity].key? name
      @client.send(:"make_#{obj}", manifest[:entity][name])
    else
      @client.send(
        :"#{obj}_from",
        send("#{name}_url"),
        opts[:depth] || 1)
    end
  }

  define_method(:"#{name}_url") {
    manifest[:entity][:"#{name}_url"]
  }

  define_method(:"#{name}=") { |x|
    @manifest ||= {}
    @manifest[:entity] ||= {}
    @manifest[:entity][:"#{name}_guid"] =
      @diff[:"#{name}_guid"] = x.id
  }
end

Instance Method Details

#==(other) ⇒ Object 



154
155
156
 
# File 'lib/cfoundry/v2/model.rb', line 154

def ==(other)
  other.is_a?(self.class) && @id == other.id
end

#create! ⇒ Object 



122
123
124
125
126
127
128
129
130
131
 
# File 'lib/cfoundry/v2/model.rb', line 122

def create!
  @manifest =
    @client.base.send(
      :"create_#{object_name}",
      self.class.defaults.merge(@manifest[:entity]))

  @id = @manifest[:metadata][:guid]

  true
end

#delete! ⇒ Object 



139
140
141
142
143
144
145
 
# File 'lib/cfoundry/v2/model.rb', line 139

def delete!
  @client.base.send(:"delete_#{object_name}", @id)

  if @manifest
    @manifest.delete :metadata
  end
end

#exists? ⇒ Boolean

Returns:

  • (Boolean) 


147
148
149
150
151
152
 
# File 'lib/cfoundry/v2/model.rb', line 147

def exists?
  @client.base.send(object_name, @id)
  true
rescue CFoundry::APIError # TODO: NotFound would be better
  false
end

#inspect ⇒ Object 



111
112
113
 
# File 'lib/cfoundry/v2/model.rb', line 111

def inspect
  "\#<#{self.class.name} '#@id'>"
end

#manifest ⇒ Object 



106
107
108
109
 
# File 'lib/cfoundry/v2/model.rb', line 106

def manifest
  # inline depth of 2 for fewer requests
  @manifest ||= @client.base.send(object_name, @id, 2)
end

#object_name ⇒ Object 



115
116
117
118
119
120
 
# File 'lib/cfoundry/v2/model.rb', line 115

def object_name
  @object_name ||=
    self.class.name.split("::").last.gsub(
      /([a-z])([A-Z])/,
      '\1_\2').downcase
end

#update!(diff = @diff) ⇒ Object 



133
134
135
136
137
 
# File 'lib/cfoundry/v2/model.rb', line 133

def update!(diff = @diff)
  @client.base.send(:"update_#{object_name}", @id, diff)

  @manifest = nil
end