Class: Memories::VersionsProxy

Inherits:
Object
  • Object
show all
Defined in:
lib/memories/versions_proxy.rb

Instance Method Summary collapse

Constructor Details

#initialize(doc) ⇒ VersionsProxy

A Memories::VersionsProxy is automatically initialized, memoized, and returned when you call the ‘versions` method on your document.

doc = Book.create :name => '2001'
doc.name = '2001: A Space Odyssey'
doc.milestone!
doc.versions.class # ==> ::Memories::VersionsProxy

You can access versions by version number

doc.versions[0] #==> nil
doc.versions[1].revision #==> 'rev-1-io329uidlrew098320'
doc.versions[1].instance.name #==> '2001'
doc.versions[1].milestone? #==> false
doc.versions[2].instance.name #==> '2001: A Space Odyssey'
doc.versions[2].milestone? #==> true
doc.versions[2].version_number # ==> 2



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# File 'lib/memories/versions_proxy.rb', line 19

def initialize(doc)
  @doc = doc
  @versions = []
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *args, &block) ⇒ Object 



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# File 'lib/memories/versions_proxy.rb', line 39

def method_missing(method_name, *args, &block)
  populate_proxies
  @versions.send(method_name, *args, &block)
end

Instance Method Details

#[](arg) ⇒ Object 



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# File 'lib/memories/versions_proxy.rb', line 29

def [](arg)
  populate_proxies
  
  if arg.kind_of?(String)
    @versions[@doc.version_number arg]
  else
    @versions[arg]
  end
end

#count ⇒ Object 



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# File 'lib/memories/versions_proxy.rb', line 24

def count
  populate_proxies
  @versions.count - 1
end