Module: Shutl::Resource::RestClassMethods

Defined in:
lib/shutl/resource/rest_class_methods.rb

Defined Under Namespace

Classes: RestCollection

Instance Method Summary collapse

Instance Method Details

#add_resource_id_to(args = {}) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 200

def add_resource_id_to args={}
  args = args.dup.with_indifferent_access
  unless args.has_key? "id"
    args.merge!({ "id" => args[resource_id_name] })
  end
  args
end

#all(args = {}) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 101

def all(args = {})
  auth_options = { auth: args.delete(:auth), from: args.delete(:from) }
  partition    = args.partition { |key, value| !remote_collection_url.index(":#{key}").nil? }

  url_args = partition.first.inject({}) { |h, pair| h[pair.first] = pair.last; h }
  params   = partition.last.inject({}) { |h, pair| h[pair.first] = pair.last; h }

  url      = generate_collection_url url_args, params
  response = connection.get(url) do |req|
    req.headers = headers_with_auth(auth_options)
  end

  check_fail response, "Failed to find all #{name.downcase.pluralize}"

  response_object = response.body[@resource_name.pluralize].map do |h|
    new_object(args.merge(h), response)
  end
  if order_collection?
    response_object.sort! do |a,b|
      str_a = a.send(@order_collection_by).to_s
      str_b = b.send(@order_collection_by).to_s
      str_a.casecmp(str_b)
    end
  end

  RestCollection.new(response_object, response.body['pagination'])
end

#base_uri(uri) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 4

def base_uri uri
  @base_uri = uri
end

#collection_url(url) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 180

def collection_url(url)
  @remote_collection_url = url
end

#connection ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 8

def connection
  @connection ||= Faraday.new(:url => @base_uri || Shutl::Resource.base_uri) do |faraday|
    faraday.request :url_encoded # form-encode POST params
    faraday.response :json

    faraday.adapter Faraday.default_adapter # make requests with Net::HTTP

    if Shutl::Resource.logger
      faraday.use :default_logger, logger: Shutl::Resource.logger
    end
  end
end

#convert_new_id(attributes) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 192

def convert_new_id attributes
  if attributes[:new_id]
    attributes = attributes.clone.tap { |h| h[:id] = h[:new_id]; h.delete(:new_id) }
  end

  attributes
end

#create(attributes = {}, options = {}) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 53

def create attributes = {}, options = {}
  url = generate_collection_url attributes
  attributes.delete "response"

  response = connection.post(url) do |req|
    req.headers = headers_with_auth(options)
    req.body = { @resource_name => attributes }.to_json
  end

  check_fail response, "Create failed"

  parsed     = response.body || {}
  attributes = parsed[@resource_name] || {}

  new_object attributes, response
end

#destroy(instance, options = {}) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 70

def destroy instance, options = {}
  failure_message = "Failed to destroy #{name.downcase.pluralize}"

  perform_action(
    instance,
    :delete,
    {}.to_json,
    headers_with_auth(options),
    failure_message
  ).success?
end

#find(args = {}, params = {}) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 29

def find(args = {}, params = {})
  params = args if @singular_resource
  auth_options = { auth: params.delete(:auth), from: params.delete(:from) }

  if @singular_resource
    url    = singular_member_url params
  elsif !args.kind_of?(Hash)
    id   = args
    args = { resource_id_name => id }
    url  = member_url args.dup, params
  else
    url = member_url args.dup, params
  end

  response     = connection.get(url) do |req|
    req.headers = headers_with_auth(auth_options)
  end

  check_fail response, "Failed to find #{name}! args: #{args}, params: #{params}"

  including_parent_attributes = response.body[@resource_name].merge args
  new_object including_parent_attributes, response
end

#generate_collection_url(*args) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 224

def generate_collection_url *args
  generate_url! remote_collection_url, *args
end

#headers ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 21

def headers
  {
    'Accept'        => 'application/json',
    'Content-Type'  => 'application/json',
    'User-Agent'    => "Shutl Resource Gem v#{Shutl::Resource::VERSION}"
  }
end

#member_url(*args) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 212

def member_url *args
  attributes = args.first.with_indifferent_access

  unless attributes[resource_id_name] ||= attributes[:id]
    raise ArgumentError, "Missing resource id with name: `#{resource_id_name}' for #{self}"
  end

  args[0] = attributes

  generate_url! remote_resource_url, *(args.dup)
end

#order_collection_by(field) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 188

def order_collection_by(field)
  @order_collection_by = field
end

#remote_collection_url ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 172

def remote_collection_url
  @remote_collection_url ||= "/#{@resource_name.pluralize}"
end

#remote_resource_url ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 176

def remote_resource_url
  @remote_resource_url ||= "#{remote_collection_url}/:#{resource_id_name}"
end

#resource_id(variable_name) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 164

def resource_id(variable_name)
  instance_variable_set :@resource_id, variable_name
end

#resource_id_name ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 168

def resource_id_name
  instance_variable_get(:@resource_id).to_sym
end

#resource_name(name) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 160

def resource_name(name)
  instance_variable_set :@resource_name, name
end

#resource_url(url) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 184

def resource_url(url)
  @remote_resource_url = url
end

#save(instance, options = {}) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 82

def save instance, options = {}
  attributes = instance.attributes rescue instance

  body = { @resource_name => convert_new_id(attributes) }.to_json

  response = perform_action(instance,
                            :put,
                            body,
                            headers_with_auth(options),
                            "Save failed")

  response.success?
end

#singular_member_url(params = {}) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 208

def singular_member_url params={}
  generate_url! "/#{@resource_name}", params
end

#singular_resource ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 156

def singular_resource
  @singular_resource = true
end

#update(args, options = {}) ⇒ Object 



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# File 'lib/shutl/resource/rest_class_methods.rb', line 96

def update args, options = {}
  save args, options
end