Class: Tickethub::Resource

Inherits:
Object
  • Object
show all
Defined in:
lib/tickethub/resource.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(endpoint, attributes = nil) ⇒ Resource

Returns a new instance of Resource.



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# File 'lib/tickethub/resource.rb', line 184

def initialize(endpoint, attributes = nil)
  @endpoint = endpoint
  attributes ||= endpoint.get

  self.load attributes
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *arguments) ⇒ Object (protected) 



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# File 'lib/tickethub/resource.rb', line 265

def method_missing(method, *arguments)
  if match = method.to_s.match(/^(.+)(=|\?)$/)
    key = match[1].to_sym

    case match[2]
      when '='
        @attributes[key] = self.class
          .load_value(key, arguments.first, self)
      when "?"
        !! @attributes[key]
    end
  else
    @attributes.key?(method) ? @attributes[method] : super
  end
end

Instance Attribute Details

#endpoint ⇒ Object

Returns the value of attribute endpoint.



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# File 'lib/tickethub/resource.rb', line 182

def endpoint
  @endpoint
end

Class Method Details

.all(params = {}) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 46

def self.all(params = {})
  Tickethub::Collection.new Tickethub.endpoint[self.path], self, params
end

.association(key, klass, path: key) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 165

def self.association(key, klass, path: key)
  define_method key do
    @attributes.key?(key.to_sym) ? 
      (attrs = @attributes[key.to_sym]) &&
        klass.load(@endpoint[path], attrs) :
          klass.load(@endpoint[path])
  end
end

.attribute(key, options) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 58

def self.attribute(key, options)
  self.attributes[key] = options

  self.descendants.each do |descendant|
    descendant.attributes[key] = options
  end
end

.attributes ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 31

def attributes
  @attributes ||= {}
end

.collection(key, klass, path: key, &block) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 174

def self.collection(key, klass, path: key, &block)
  define_method key do |params = {}|
    Tickethub::Collection.new(@endpoint[path], klass, params).tap do |collection|
      collection.instance_eval &block if block
    end
  end
end

.descendants ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 35

def descendants
  @descendants ||= []
end

.dump_value(key, value) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 125

def self.dump_value(key, value)
  return value unless self.attributes.key? key
  case self.attributes[key][:type]
    when :date      then value.iso8601
    when :datetime  then value.iso8601
    when :time      then value.iso8601[10..-1]
    when :duration  then value.iso8601
    when :money     then value.fractional
    when :timezone  then value.zone
    when :country   then value.alpha2
    when :currency  then value.iso_code
    else value
  end
end

.inherited(descendant) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 40

def self.inherited(descendant)
  if descendant.ancestors.member? Tickethub::Resource
    self.descendants.push descendant
  end
end

.load(endpoint, attributes = nil) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 146

def self.load(endpoint, attributes = nil)
  attributes ||= endpoint.get

  klass = registered_types.find do |type, options|
    attributes[options[:attribute].to_s] == type
  end

  klass = klass ? klass[1][:klass] : self
  endpoint = if klass.singleton?
    endpoint[klass.path]
  elsif id = attributes['id']
    endpoint[klass.path, id]
  else # readonly
    endpoint[klass.path].freeze
  end

  klass.new endpoint, attributes
end

.load_value(key, value, object) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 70

def self.load_value(key, value, object)
  return nil if value.nil? || (value.is_a?(String) && value.empty?)
  return value unless self.attributes.key? key

  case self.attributes[key][:type]
    when :date
      case value
        when String then ISO8601::Date.new(value)
        else raise ArgumentError, 'invalid date value: ' + value
      end
    when :datetime
      case value
        when String then ISO8601::DateTime.new(value)
        else raise ArgumentError, 'invalid datetime value: ' + value
      end
    when :time
      case value
        when String then ISO8601::Time.new(value)
        else raise ArgumentError, 'invalid time value: ' + value
      end
    when :duration
      case value
        when String then ISO8601::Duration.new(value)
        else raise ArgumentError, 'invalid time value: ' + value
      end
    when :money
      currency = Money::Currency.new(object.currency)
      raise ArgumentError, 'invalid money currency' if currency.blank?

      case value
        when Fixnum then Money.new(value, currency)
        when Numeric, String
          currency = Money::Currency.wrap(currency)
          Money.new(value.to_d * currency.subunit_to_unit, currency)
        else raise ArgumentError, 'invalid money value: ' + value
      end
    when :currency
      case value
        when String then Money::Currency.new(value)
        else raise ArgumentError, 'invalid currency value: ' + value
      end            
    when :timezone
      case value
        when String then Timezone::Zone.new(zone: value)
        else raise ArgumentError, 'invalid timezone value: ' + value
      end
    when :country
      case value
        when String then Country.new(value)
        else raise ArgumentError, 'invalid country value: ' + value
      end
    else value
  end
end

.path(value = nil, singleton: false) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 17

def path(value = nil, singleton: false)        
  return @path || (superclass.respond_to?(:path) ? superclass.path : nil) if value.nil?
  @singleton = singleton
  @path = value
end

.polymorphic(type, attribute = :type) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 50

def self.polymorphic(type, attribute = :type)
  self.superclass.register_type type, self, attribute
end

.register_type(type, klass, attribute = :type) ⇒ Object

klass, attribute



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# File 'lib/tickethub/resource.rb', line 54

def self.register_type(type, klass, attribute = :type) # klass, attribute
  self.registered_types[type] = { klass: klass, attribute: attribute }
end

.registered_types ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 23

def registered_types
  @registered_types ||= {}
end

.scope(key, proc = -> (params = {}) { self.scope key, params }) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 66

def self.scope(key, proc = -> (params = {}) { self.scope key, params })
  self.scopes[key] = proc
end

.scopes ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 27

def scopes
  @scopes ||= {}
end

.serialize(attributes) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 140

def self.serialize(attributes)
  attributes.collect do |key, value|
    [key, dump_value(key, value)]
  end.to_h
end

.singleton? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tickethub/resource.rb', line 13

def singleton?
  !! @singleton
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 231

def ==(other)
  self.hash == other.hash
end

#[](key) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 223

def [](key)
  send key
end

#[]=(key, value) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 227

def []=(key, value)
  send "#{key}=", value
end

#destroy ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 203

def destroy
  self.load @endpoint.delete.decoded
end

#eql?(other) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tickethub/resource.rb', line 235

def eql?(other)
  self == other
end

#errors ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 247

def errors
  @errors ||= Tickethub::Errors.new @attributes[:errors]
end

#hash ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 239

def hash
  id?? [self.class, id].hash : super
end

#inspect ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 259

def inspect
  "#<#{self.class.name} #{to_h}>"
end

#load(attributes) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 215

def load(attributes)
  @attributes = {}
  attributes.each do |key, value|
    send "#{key}=", value
  end
  return self
end

#reload! ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 211

def reload!
  self.load @endpoint.get
end

#respond_to?(method, include_priv = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tickethub/resource.rb', line 207

def respond_to?(method, include_priv = false)
  @attributes.key?(method.to_s.remove(/[=\?]\Z/).to_sym) || super
end

#to_h ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 251

def to_h
  @attributes
end

#to_param ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 243

def to_param
  self.id
end

#to_s ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 255

def to_s
  self.id?? id : super
end

#update(attributes) ⇒ Object 



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# File 'lib/tickethub/resource.rb', line 195

def update(attributes)
  self.load @endpoint.patch(attributes).decoded
  return true
rescue Tickethub::ResourceInvalid => err
  self.load Tickethub::Response.new(err.response).decoded
  return false
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tickethub/resource.rb', line 191

def valid?
  errors.nil? || errors.valid?
end