Class: StrokeDB::Document::Metas

Inherits:
Array show all
Defined in:
lib/strokedb/document.rb

Overview

Collection of meta documents

Constant Summary

Constants inherited from Array

Array::SDATPTAGS

Instance Method Summary collapse

Methods inherited from Array

#stroke_diff, #stroke_merge, #stroke_patch, #to_raw

Constructor Details

#initialize(document) ⇒ Metas

:nodoc:



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# File 'lib/strokedb/document.rb', line 98

def initialize(document)
  @document = document
  _meta = document[:meta]
  concat _meta.to_a
end

Instance Method Details

#<<(meta) ⇒ Object 



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# File 'lib/strokedb/document.rb', line 104

def <<(meta)
  add_meta(meta, :call_initialization_callbacks => true)
end

#_delete ⇒ Object 



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# File 'lib/strokedb/document.rb', line 108

alias :_delete :delete

#add_meta(meta, opts = {}) ⇒ Object 



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

def add_meta(meta, opts = {})
  opts = opts.stringify_keys
  _module = nil

  # meta can be specified both as a meta document and as a module
  case meta
  when Document
    push meta
    _module = StrokeDB::Document.collect_meta_modules(@document.store, meta).first
  when Meta
    push meta.document(@document.store)
    _module = meta
  else
    raise ArgumentError, "Meta should be either document or meta module"
  end

  # register meta in the document
  @document[:meta] = self

  if _module
    @document.extend(_module)

    if opts['call_initialization_callbacks']
      @document.send!(:execute_callbacks_for, _module, :on_initialization)
      @document.send!(:execute_callbacks_for, _module, :on_new_document) if @document.new?
    end
  end
end

#delete(meta) ⇒ Object 



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# File 'lib/strokedb/document.rb', line 109

def delete(meta)
  case meta
  when Document
    _delete meta
    _module = StrokeDB::Document.collect_meta_modules(@document.store, meta).first
  when Meta
    _delete meta.document(@document.store)
    _module = meta
  else
    raise ArgumentError, "Meta should be either document or meta module"
  end

  @document[:meta] = self

  if _module
    @document.unextend(_module)
  end

end