Module: Dynamoid::Document

Extended by:

ActiveSupport::Concern

Includes:

Components

Defined in:

lib/dynamoid/document.rb

Overview

Defined Under Namespace

Modules: ClassMethods

Instance Attribute Summary

Attributes included from Persistence

#new_record

Attributes included from Fields

#attributes

Instance Method Summary (collapse)

• - (Object) ==(other)

  An object is equal to another object if their ids are equal.

• - (Object) hash_key

  Return an object's hash key, regardless of what it might be called to the object.

• - (Object) hash_key=(key)

  Assign an object's hash key, regardless of what it might be called to the object.

• - (Dynamoid::Document) initialize(attrs = {})

  Initialize a new object.

• - (Dynamoid::Document) reload

  Reload an object from the database -- if you suspect the object has changed in the datastore and you need those changes to be reflected immediately, you would call this method.

Methods included from Validations

#save, #save!, #valid?

Methods included from Persistence

#delete, #destroy, #dump, #persisted?, #save

Methods included from Indexes

#delete_indexes, #save_indexes

Methods included from Fields

#read_attribute, #update_attribute, #update_attributes, #write_attribute

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# File 'lib/dynamoid/document.rb', line 118

def ==(other)
  return false if other.nil?
  other.respond_to?(:hash_key) && other.hash_key == self.hash_key
end

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# File 'lib/dynamoid/document.rb', line 138

def hash_key
  self.send(self.class.hash_key)
end

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# File 'lib/dynamoid/document.rb', line 145

def hash_key=(key)
  self.send("#{self.class.hash_key}=".to_sym, key)
end

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# File 'lib/dynamoid/document.rb', line 105

def initialize(attrs = {})
  self.class.send(:field, self.class.hash_key) unless self.respond_to?(self.class.hash_key)
  
  @new_record = true
  @attributes ||= {}
  @associations ||= {}

  self.class.undump(attrs).each {|key, value| send "#{key}=", value }
end

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# File 'lib/dynamoid/document.rb', line 129

def reload
  self.attributes = self.class.find(self.hash_key).attributes
  @associations.values.each(&:reset)
  self
end