Class: Onoma::Migration

Inherits:
Object
  • Object
show all
Defined in:
lib/onoma/migration.rb,
lib/onoma/migration/actions/base.rb,
lib/onoma/migration/actions/item_change.rb,
lib/onoma/migration/actions/item_merging.rb,
lib/onoma/migration/actions/item_removal.rb,
lib/onoma/migration/actions/item_creation.rb,
lib/onoma/migration/actions/property_creation.rb,
lib/onoma/migration/actions/nomenclature_change.rb,
lib/onoma/migration/actions/nomenclature_removal.rb,
lib/onoma/migration/actions/nomenclature_creation.rb

Overview

Migration instance represents a migration file

Defined Under Namespace

Modules: Actions

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(number, name) {|_self| ... } ⇒ Migration

Returns a new instance of Migration.

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/onoma/migration.rb', line 36

def initialize(number, name)
  @number = number
  @name = name
  @actions = []
  yield self if block_given?
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/onoma/migration.rb', line 34

def name
  @name
end

#number ⇒ Object (readonly)

Returns the value of attribute number.



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# File 'lib/onoma/migration.rb', line 34

def number
  @number
end

Class Method Details

.parse(file) ⇒ Object

Parse en XML migration to a Onoma::Migration object



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# File 'lib/onoma/migration.rb', line 16

def parse(file)
  # puts "Parse #{file}"
  f = File.open(file, 'rb')
  document = Nokogiri::XML(f) do |config|
    config.strict.nonet.noblanks.noent
  end
  f.close
  root = document.root
  number = file.basename.to_s.split('_').first.to_i
  new(number, root['name']) do |m|
    root.children.each do |child|
      next unless child.is_a? Nokogiri::XML::Element
      m.add "Onoma::Migration::Actions::#{child.name.underscore.classify}".constantize.new(child)
    end
  end
end

Instance Method Details

#add(action) ⇒ Object 



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# File 'lib/onoma/migration.rb', line 47

def add(action)
  @actions << action
end

#each_action(&block) ⇒ Object 



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# File 'lib/onoma/migration.rb', line 51

def each_action(&block)
  @actions.each(&block)
end

#inspect ⇒ Object 



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# File 'lib/onoma/migration.rb', line 55

def inspect
  "#<#{self.class.name}:#{format('%#x', object_id)} ##{number} #{name.inspect} (#{@actions.size} actions)>"
end

#label ⇒ Object 



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# File 'lib/onoma/migration.rb', line 43

def label
  "#{number} #{name}"
end

#migrate(conn) ⇒ Object 



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# File 'lib/onoma/migration.rb', line 59

def migrate(conn)
  puts ''
  puts "== #{label}: migrating ".ljust(80, '=')
  duration = Benchmark.measure do
    each_action do |action|
      puts "-- #{action.label}"
      conn.exec_action(action)
    end
    conn.version = number
  end
  puts "== #{label}: migrated (#{duration.real.round(4)}s)".ljust(80, '=')
  # puts "Write DB in #{Onoma.reference_path.relative_path_from(Onoma.root)}".yellow
  if @steps
    versions_dir = Onoma.root.join('tmp', 'versions')
    FileUtils.mkdir_p(versions_dir)
    conn.copy(versions_dir.join("#{number}.xml"))
  end
end