Class: Spaceship::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/spaceship/base.rb

Overview

Spaceship::Base is the superclass for models in Apple Developer Portal. It's mainly responsible for mapping responses to objects.

A class-level attribute `client` is used to maintain the spaceship which we are using to talk to ADP.

Example of creating a new ADP model:

class Widget < Spaceship::Base
  attr_accessor :id, :name, :foo_bar, :wiz_baz
  attr_mapping({
    'name' => :name,
    'fooBar' => :foo_bar,
    'wizBaz' => :wiz_baz
  })
end

When you want to instantiate a model pass in the parsed response: `Widget.new(widget_json)`

Direct Known Subclasses

PortalBase, Tunes::TunesBase

Defined Under Namespace

Classes: DataHash

Class Attribute Summary collapse

Instance Attribute Summary collapse

Storing the `attr_accessor` collapse

Inspect related code collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attrs = {}) ⇒ Base

The initialize method accepts a parsed response from Apple and sets all attributes that are defined by `attr_mapping`

Do not override `initialize` in your own models.


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# File 'lib/spaceship/base.rb', line 177

def initialize(attrs = {})
  attrs.each do |key, val|
    self.send("#{key}=", val) if respond_to?("#{key}=")
  end
  self.raw_data = DataHash.new(attrs)
  @client = self.class.client
  self.setup
end

Class Attribute Details

.clientSpaceship::Client

The client used to make requests.

Returns:


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# File 'lib/spaceship/base.rb', line 62

def client
  @client
end

Instance Attribute Details

#clientSpaceship::Client (readonly)

Returns The current spaceship client used by the model to make requests.

Returns:

  • (Spaceship::Client)

    The current spaceship client used by the model to make requests.


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# File 'lib/spaceship/base.rb', line 165

def client
  @client
end

#raw_dataHash/Array

Returns Holds the raw data we got from Apple's server to use it later.

Returns:

  • (Hash/Array)

    Holds the raw data we got from Apple's server to use it later


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# File 'lib/spaceship/base.rb', line 170

def raw_data
  @raw_data
end

Class Method Details

.attr_accessor(*vars) ⇒ Object

From stackoverflow.com/questions/2487333/fastest-one-liner-way-to-list-attr-accessors-in-ruby This will store a list of defined attr_accessors to easily access them when inspecting the values


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# File 'lib/spaceship/base.rb', line 196

def self.attr_accessor(*vars)
  @attributes ||= []
  @attributes.concat vars
  super(*vars)
end

.attr_mapping(attr_map = nil) ⇒ Object

Defines the attribute mapping between the response from Apple and our model objects. Keys are to match keys in the response and the values are to match attributes on the model.

Example of using `attr_mapping`

class Widget < Spaceship::Base
  attr_accessor :id, :name, :foo_bar, :wiz_baz
  attr_mapping({
    'name' => :name,
    'fooBar' => :foo_bar,
    'wizBaz' => :wiz_baz
  })
end

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# File 'lib/spaceship/base.rb', line 113

def attr_mapping(attr_map = nil)
  if attr_map
    @attr_mapping = attr_map
    @attr_mapping.values.each do |method_name|
      getter = method_name.to_sym
      setter = "#{method_name}=".to_sym
      remove_method(getter) if public_instance_methods.include?(getter)
      remove_method(setter) if public_instance_methods.include?(setter)
    end
    include(mapping_module(@attr_mapping))
  else
    begin
      @attr_mapping ||= ancestors[1].attr_mapping
    rescue NoMethodError
    rescue NameError
    end
  end
  return @attr_mapping
end

.attributesObject


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# File 'lib/spaceship/base.rb', line 202

def self.attributes
  @attributes ||= []
  par = []

  par = (self.superclass.attributes || []) unless self == Base

  @attributes + par
end

.mapping_module(attr_mapping) ⇒ Module

Binds attributes getters and setters to underlying data returned from the API. Setting any properties will alter the `raw_data` hash.

Returns:

  • (Module)

    with the mapped getters and setters defined. Can be `include`, `extend`, or `prepend` into a class or object


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# File 'lib/spaceship/base.rb', line 81

def mapping_module(attr_mapping)
  Module.new do
    attr_mapping.each do |source, dest|
      getter = dest.to_sym
      setter = "#{dest}=".to_sym

      define_method(getter) do
        raw_data.get(*source.split('.'))
      end

      define_method(setter) do |value|
        self.raw_data ||= DataHash.new({})
        raw_data.set(source.split('.'), value)
      end
    end
  end
end

.method_missing(method_sym, *args, &block) ⇒ Object

Call a method to return a subclass constant.

If `method_sym` is an underscored name of a class, return the class with the current client passed into it. If the method does not match, NoMethodError is raised.

Example:

Certificate.production_push
#=> Certificate::ProductionPush

ProvisioningProfile.ad_hoc
#=> ProvisioningProfile::AdHoc

ProvisioningProfile.some_other_method
#=> NoMethodError: undefined method `some_other_method' for ProvisioningProfile

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# File 'lib/spaceship/base.rb', line 150

def method_missing(method_sym, *args, &block)
  module_name = method_sym.to_s
  module_name.sub!(/^[a-z\d]/) { $&.upcase }
  module_name.gsub!(%r{(?:_|(/))([a-z\d])}) { $2.upcase }
  if const_defined?(module_name)
    klass = const_get(module_name)
    klass.set_client(@client)
  else
    super
  end
end

.set_client(client) ⇒ Spaceship::Base

Sets client and returns self for chaining. rubocop:disable Style/AccessorMethodName

Returns:


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# File 'lib/spaceship/base.rb', line 70

def set_client(client)
  self.client = client
  self
end

Instance Method Details

#attributesObject


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# File 'lib/spaceship/base.rb', line 211

def attributes
  self.class.attributes
end

#inspectObject


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# File 'lib/spaceship/base.rb', line 219

def inspect
  inspectables = self.attributes

  value = inspectables.map do |k|
    v = self.send(k).inspect
    v.gsub!("\n", "\n\t") # to align nested elements

    "\t#{k}=#{v}"
  end.join(", \n")

  "<#{self.class.name} \n#{value}>"
end

#setupObject

This method can be used by subclasses to do additional initialisation using the `raw_data`


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# File 'lib/spaceship/base.rb', line 188

def setup; end

#to_sObject


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# File 'lib/spaceship/base.rb', line 232

def to_s
  self.inspect
end