Module: MongoidExt::Versioning

Defined in:
lib/mongoid_ext/versioning.rb

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(klass) ⇒ Object 



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# File 'lib/mongoid_ext/versioning.rb', line 3

def self.included(klass)
  klass.class_eval do
    extend ClassMethods

    cattr_accessor :versionable_options

    attr_accessor :rolling_back
    field :version_message

    field :versions_count, :type => Integer, :default => 0
    field :version_ids, :type => Array, :default => []

    before_save :save_version, :if => Proc.new { |d| !d.rolling_back }
  end
end

Instance Method Details

#current_version ⇒ Object 



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# File 'lib/mongoid_ext/versioning.rb', line 78

def current_version
  version_klass.new(:data => self.attributes, self.class.versionable_options[:owner_field] => (self.updated_by_id_was || self.updated_by_id), :created_at => Time.now)
end

#diff(key, pos1, pos2, format = :html) ⇒ Object 



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# File 'lib/mongoid_ext/versioning.rb', line 50

def diff(key, pos1, pos2, format = :html)
  version1 = self.version_at(pos1)
  version2 = self.version_at(pos2)

  Differ.diff(version1.content(key), version2.content(key)).format_as(format).html_safe
end

#diff_by_char(key, pos1, pos2, format = :html) ⇒ Object 



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# File 'lib/mongoid_ext/versioning.rb', line 71

def diff_by_char(key, pos1, pos2, format = :html)
  version1 = self.version_at(pos1)
  version2 = self.version_at(pos2)

  Differ.diff_by_char(version1.content(key), version2.content(key)).format_as(format).html_safe
end

#diff_by_line(key, pos1, pos2, format = :html) ⇒ Object 



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# File 'lib/mongoid_ext/versioning.rb', line 64

def diff_by_line(key, pos1, pos2, format = :html)
  version1 = self.version_at(pos1)
  version2 = self.version_at(pos2)

  Differ.diff_by_line(version1.content(key), version2.content(key)).format_as(format).html_safe
end

#diff_by_word(key, pos1, pos2, format = :html) ⇒ Object 



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# File 'lib/mongoid_ext/versioning.rb', line 57

def diff_by_word(key, pos1, pos2, format = :html)
  version1 = self.version_at(pos1)
  version2 = self.version_at(pos2)

  Differ.diff_by_word(version1.content(key), version2.content(key)).format_as(format).html_safe
end

#load_version(pos = nil) ⇒ Object 



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# File 'lib/mongoid_ext/versioning.rb', line 39

def load_version(pos = nil)
  pos = self.versions_count-1 if pos.nil?
  version = self.version_at(pos)

  if version
    version.data.each do |key, value|
      self.send("#{key}=", value)
    end
  end
end

#rollback!(pos = nil) ⇒ Object 



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# File 'lib/mongoid_ext/versioning.rb', line 19

def rollback!(pos = nil)
  pos = self.versions_count-1 if pos.nil?
  version = self.version_at(pos)

  if version
    version.data.each do |key, value|
      self.send("#{key}=", value)
    end

    owner_field = self.class.versionable_options[:owner_field]
    self[owner_field] = version[owner_field] if !self.changes.include?(owner_field)
    self.updated_at = version.date if self.respond_to?(:updated_at) && !self.updated_at_changed?
  end

  @rolling_back = true
  r = save!
  @rolling_back = false
  r
end

#version_at(pos) ⇒ Object 



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# File 'lib/mongoid_ext/versioning.rb', line 82

def version_at(pos)
  case pos.to_s
  when "current"
    current_version
  when "first"
    version_klass.find(self.version_ids.first)
  when "last"
    version_klass.find(self.version_ids.last)
  else
    if version_id = self.version_ids[pos]
      version_klass.find(self.version_ids[pos])
    end
  end
end

#version_klass ⇒ Object 



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# File 'lib/mongoid_ext/versioning.rb', line 101

def version_klass
  self.class.version_klass
end

#versions ⇒ Object 



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# File 'lib/mongoid_ext/versioning.rb', line 97

def versions
  version_klass.where(:target_id => self.id)
end