Module: Flapjack::Gateways::JSONAPI::Methods::ResourcePost

Defined in:
lib/flapjack/gateways/jsonapi/methods/resource_post.rb

Class Method Summary collapse

Class Method Details

.registered(app) ⇒ Object

module Helpers end



14
15
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
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
 
# File 'lib/flapjack/gateways/jsonapi/methods/resource_post.rb', line 14

def self.registered(app)
  app.helpers Flapjack::Gateways::JSONAPI::Helpers::Headers
  app.helpers Flapjack::Gateways::JSONAPI::Helpers::Miscellaneous
  app.helpers Flapjack::Gateways::JSONAPI::Helpers::Resources
  app.helpers Flapjack::Gateways::JSONAPI::Helpers::Serialiser
  # app.helpers Flapjack::Gateways::JSONAPI::Methods::ResourcePost::Helpers

  Flapjack::Gateways::JSONAPI::RESOURCE_CLASSES.each do |resource_class|
    jsonapi_method = resource_class.jsonapi_methods[:post]

    unless jsonapi_method.nil?
      resource = resource_class.short_model_name.plural

      jsonapi_links = if resource_class.respond_to?(:jsonapi_associations)
        resource_class.jsonapi_associations || {}
      else
        {}
      end

      singular_links = jsonapi_links.select {|n, jd|
        jd.send(:post).is_a?(TrueClass) && :singular.eql?(jd.number)
      }

      multiple_links = jsonapi_links.select {|n, jd|
        jd.send(:post).is_a?(TrueClass) && :multiple.eql?(jd.number)
      }

      app.class_eval do
        single = resource_class.short_model_name.singular

        model_type = resource_class.short_model_name.name
        model_type_create = "#{model_type}Create".to_sym
        model_type_data = "data_#{model_type}".to_sym

        # TODO how to include plural for same route? swagger won't overload...

        swagger_path "/#{resource}" do
          operation :post do
            key :description, jsonapi_method.descriptions[:singular]
            key :operationId, "create_#{single}"
            key :consumes, [JSONAPI_MEDIA_TYPE]
            key :produces, [Flapjack::Gateways::JSONAPI.media_type_produced]
            parameter do
              key :name, :data
              key :in, :body
              key :description, "#{single} to create"
              key :required, true
              schema do
                key :"$ref", model_type_create
              end
            end
            response 200 do
              key :description, "#{single} creation success"
              schema do
                key :'$ref', model_type_data
              end
            end
            response 403 do
              key :description, "Forbidden; invalid data"
              schema do
                key :'$ref', :Errors
              end
            end
            response 409 do
              key :description, "Conflict; bad request structure"
              schema do
                key :'$ref', :Errors
              end
            end
          end
        end

      end

      app.post "/#{resource}" do
        status 201

        resources_data, unwrap = wrapped_params

        attributes = jsonapi_method.attributes || []

        validate_data(resources_data, :attributes => attributes,
          :singular_links => singular_links,
          :multiple_links => multiple_links)

        resources = nil

        data_ids = resources_data.each_with_object([]) do |d, memo|
          d_id = d['id']
          memo << d_id.to_s unless d_id.nil?
        end

        klasses_to_lock = resources_data.inject([]) do |memo, d|
          next memo unless d.has_key?('relationships')
          d['relationships'].each_pair do |k, v|
            assoc = jsonapi_links[k.to_sym]
            next if assoc.nil?
            memo |= assoc.lock_klasses
          end
          memo
        end

        attribute_types = resource_class.attribute_types

        jsonapi_type = resource_class.short_model_name.singular

        resource_class.jsonapi_lock_method(:post, klasses_to_lock) do

          unless data_ids.empty? || resource_class.included_modules.include?(Zermelo::Records::Stub)
            conflicted_ids = resource_class.intersect(:id => data_ids).ids
            halt(err(409, "#{resource_class.name.split('::').last.pluralize} already exist with the following ids: " +
                     conflicted_ids.to_a.join(', '))) unless conflicted_ids.empty?
          end
          links_by_resource = resources_data.each_with_object({}) do |rd, memo|
            record_data = rd['attributes'].nil? ? {} :
              normalise_json_data(attribute_types, rd['attributes'])
            type = rd['type']
            halt(err(409, "Resource missing data type")) if type.nil?
            halt(err(409, "Resource data type '#{type}' does not match endpoint '#{jsonapi_type}'")) unless jsonapi_type.eql?(type)
            r_id = rd['id']
            record_data[:id] = r_id unless r_id.nil?
            r = resource_class.new(record_data)

            # hacking in support for non-persisted objects
            case resource_class.name
            when Flapjack::Data::Acknowledgement.name, Flapjack::Data::TestNotification.name
              r.queue = config['processor_queue'] || 'events'
            end

            halt(err(403, "Validation failed, " + r.errors.full_messages.join(', '))) if r.invalid?
            memo[r] = rd['relationships']
          end

          # get linked objects, fail before save if we don't find them
          resource_links = links_by_resource.each_with_object({}) do |(r, links), memo|
            next if links.nil?

            singular_links.each_pair do |assoc, assoc_klass|
              next unless links.has_key?(assoc.to_s)
              memo[r.object_id] ||= {}
              memo[r.object_id][assoc.to_s] = assoc_klass.data_klass.find_by_id!(links[assoc.to_s]['data']['id'])
            end

            multiple_links.each_pair do |assoc, assoc_klass|
              next unless links.has_key?(assoc.to_s)
              memo[r.object_id] ||= {}
              memo[r.object_id][assoc.to_s] = assoc_klass.data_klass.find_by_ids!(*(links[assoc.to_s]['data'].map {|l| l['id']}))
            end
          end

          links_by_resource.keys.each do |r|
            r.save!
            rl = resource_links[r.object_id]
            next if rl.nil?
            rl.each_pair do |assoc, value|
              case value
              when Array
                r.send(assoc.to_sym).add(*value) unless value.empty?
              else
                r.send("#{assoc}=".to_sym, value)
              end
            end
          end
          resources = links_by_resource.keys
        end

        resource_ids = resources.map(&:id)

        response.headers['Location'] = "#{request.base_url}/#{resource}/#{resource_ids.join(',')}"

        ajs = as_jsonapi(resource_class, resources, resource_ids,
                         :unwrap => unwrap, :query_type => :resource)

        Flapjack.dump_json(ajs)
      end
    end

  end
end