Class: ApiResource::Resource

Inherits:
Object
  • Object
show all
Includes:
ActiveModel::Model, ActiveModel::Serializers::JSON
Defined in:
lib/api-resource/resource.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(hash = nil) ⇒ Resource 



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# File 'lib/api-resource/resource.rb', line 43

def initialize(hash=nil)
  self.attributes = hash if hash
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(m, *args, &_) ⇒ Object (protected) 



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# File 'lib/api-resource/resource.rb', line 174

def method_missing(m, *args, &_)
  case m
    when /^by_(.+)/
      resource_path = self.class.build_url($1.pluralize, args[0], self.resource_path)
      Class.new do
        def initialize(proxied, resource_path)
          @proxied = proxied
          @resource_path = resource_path
        end

        def method_missing(m, *args, &block)
          begin
            old_resource_path = @proxied.resource_path
            @proxied.resource_path = @resource_path
            @proxied.public_send(m, *args, &block)
          ensure
            @proxied.resource_path = old_resource_path
          end
        end
      end.new(self, resource_path)
    else
      super
  end
end

Class Method Details

.all ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 69

def self.all
  self.where({})
end

.all_pages(params = {}) ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 73

def self.all_pages(params={})
  params  = { page: 1, per_page: default_per_page }.merge(params)
  per_page = params[:per_page].to_i
  page     = params[:page].to_i
  begin
    params[:page] = page
    result         = self.where(params)
    total_count    = result.try :total_count
    arr            = result.to_a
    count          = arr.length
    break if yield(arr, page, per_page, total_count) || (page - 1) * per_page + count >= total_count
    page += 1
  end while true
end

.build_url(*paths) ⇒ Object

Raises:

  • (RuntimeError) 


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# File 'lib/api-resource/resource.rb', line 256

def self.build_url(*paths)
  raise RuntimeError, 'Empty base_url' if base_url.blank?
  URI::parse(base_url).merge(paths.map { |p| "#{URI.encode p.to_s}" }.join('/')).to_s
end

.client(method, params, *paths) ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 237

def self.client(method, params, *paths)
  url        = build_url(*paths)
  headers    = { accept: :json }
  req_params = { url: url, method: method, headers: headers }
  if method == :get
    # using #to_query instead of URI::encode_www_form to comply with rails convention for query string array values
    req_params[:url] = "#{url}?#{params.to_query}" unless params.to_query.blank?
  else
    req_params[:payload] = params
  end
  req = RestClient::Request.new(req_params)
  if hmac
    req.sign!(api_id, api_secret, hmac_options)
  end
  result = req.execute
  log << result
  result
end

.create_log(param) ⇒ Object

Create a log that respond to << like a logger param can be ‘stdout’, ‘stderr’, a string (then we will log to that file) or a logger (then we return it)



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# File 'lib/api-resource/resource.rb', line 274

def self.create_log(param)
  return param unless param.is_a? String
  case param
    when 'stdout'
      Class.new do
        def <<(obj)
          STDOUT.puts obj
        end
      end.new
    when 'stderr'
      Class.new do
        def <<(obj)
          STDERR.puts obj
        end
      end.new
    else
      Class.new do
        def initialize(file)
          @file = file
        end

        def <<(obj)
          File.open(@file, 'a') { |f| f.puts obj }
        end
      end.new(param)
  end
end

.create_resource_collection(result) ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 200

def self.create_resource_collection(result)
  json = JSON.parse(result)
  ResourceCollection.new(json['data'], json['meta'], self)
end

.filter_submitted_attributes(&block) ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 39

def self.filter_submitted_attributes(&block)
  self.pre_submit_filter = block if block_given?
end

.find(id, params = {}) ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 63

def self.find(id, params={})
  result = client(:get, params, resource_path, id)
  json   = JSON.parse(result)
  self.new(json['data'] || json)
end

.load_class(tableized_class) ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 205

def self.load_class(tableized_class)
  tableized_class = name.to_s.tableize.split('/')[0...-1].push(tableized_class).join('/')
  klass = tableized_class && tableized_class.to_s.singularize.classify.constantize rescue nil
  klass if klass && klass < ApiResource::Resource
end

.log ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 265

def self.log
  self.logger ||= Class.new do
    def <<(_)
    end
  end.new
end

.log=(param) ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 261

def self.log=(param)
  self.logger = create_log(param)
end

.method_missing(m, *args, &_) ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 162

def self.method_missing(m, *args, &_)
  case (m)
    when /^by_(.+)/
      resource_path = build_url($1.pluralize, args[0], self.resource_path)
      Class.new(self) do
        self.resource_path = resource_path
      end
    else
      super
  end
end

.resource_path ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 47

def self.resource_path
  @resource_path || name.to_s.tableize.split('/').last
end

.resource_path=(path) ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 51

def self.resource_path=(path)
  @resource_path = path.gsub(%r{\A/+|/+\Z}, '')
end

.where(params) ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 88

def self.where(params)
  result = client(:get, params, resource_path)
  create_resource_collection(result)
end

.with_hmac(api_id, api_secret, options = {}) ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 32

def self.with_hmac(api_id, api_secret, options={})
  self.hmac         = true
  self.api_id       = api_id
  self.api_secret   = api_secret
  self.hmac_options = options
end

Instance Method Details

#attributes ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 117

def attributes
  instance_values.with_indifferent_access.except(:errors, :validation_context)
end

#destroy!(options = {}) ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 112

def destroy!(options={})
  submit_resource(resource_path, false, options[:id_attr], :delete)
  self
end

#resource_path ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 55

def resource_path
  self.class.resource_path
end

#resource_path=(path) ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 59

def resource_path=(path)
  self.class.resource_path = path
end

#save!(options = {}) ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 93

def save!(options={})
  submit_resource(resource_path, true, options[:id_attr])
  self
end

#submit!(options = {}) ⇒ Object 



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# File 'lib/api-resource/resource.rb', line 98

def submit!(options={})
  path = options.fetch(:path, resource_path)
  type = options[:type]
  json = submit_resource(path, false, options[:id_attr])
  meta = json && json['meta']
  type ||= meta && meta['type']
  if type
    returned_type = self.class.load_class(type)
    returned_type.new(json['data'] || json)
  else
    self
  end
end