Module: ActiveRecord::Acts::Versioned::Behaviors::ClassMethods
- Defined in:
- lib/acts_as_versioned.rb
Instance Method Summary collapse
-
#create_versioned_table(create_table_options = {}) ⇒ Object
Rake migration task to create the versioned table using options passed to acts_as_versioned.
-
#drop_versioned_table ⇒ Object
Rake migration task to drop the versioned table.
-
#versioned_class ⇒ Object
Returns an instance of the dynamic versioned model.
-
#versioned_columns ⇒ Object
Returns an array of columns that are versioned.
-
#without_locking(&block) ⇒ Object
Turns off optimistic locking for the duration of the block.
-
#without_revision(&block) ⇒ Object
Executes the block with the versioning callbacks disabled.
Instance Method Details
#create_versioned_table(create_table_options = {}) ⇒ Object
Rake migration task to create the versioned table using options passed to acts_as_versioned
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# File 'lib/acts_as_versioned.rb', line 414 def create_versioned_table( = {}) # create version column in main table if it does not exist if !self.content_columns.find { |c| [version_column.to_s, 'lock_version'].include? c.name } self.connection.add_column table_name, version_column, :integer self.reset_column_information end return if connection.table_exists?(versioned_table_name) self.connection.create_table(versioned_table_name, ) do |t| t.column versioned_foreign_key, :integer t.column version_column, :integer end self.versioned_columns.each do |col| limit = col.limit if col.limit == 10 and col.type == :integer # Avoid 'No integer type has byte size 10' under MySQL limit = 8 end self.connection.add_column versioned_table_name, col.name, col.type, :limit => limit, :default => col.default, :scale => col.scale, :precision => col.precision end if type_col = self.columns_hash[inheritance_column] self.connection.add_column versioned_table_name, versioned_inheritance_column, type_col.type, :limit => type_col.limit, :default => type_col.default, :scale => type_col.scale, :precision => type_col.precision end # Make sure not to create an index that is too long (rails limits index names to 64 characters from version 3.0.3) name = 'index_' + versioned_table_name + '_on_' + versioned_foreign_key self.connection.add_index versioned_table_name, versioned_foreign_key, :name => name[0,63] end |
#drop_versioned_table ⇒ Object
Rake migration task to drop the versioned table
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# File 'lib/acts_as_versioned.rb', line 455 def drop_versioned_table self.connection.drop_table versioned_table_name end |
#versioned_class ⇒ Object
Returns an instance of the dynamic versioned model
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# File 'lib/acts_as_versioned.rb', line 409 def versioned_class const_get versioned_class_name end |
#versioned_columns ⇒ Object
Returns an array of columns that are versioned. See non_versioned_columns
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# File 'lib/acts_as_versioned.rb', line 404 def versioned_columns @versioned_columns ||= columns.select { |c| !non_versioned_columns.include?(c.name) } end |
#without_locking(&block) ⇒ Object
Turns off optimistic locking for the duration of the block
Foo.without_locking do
@foo.save
end
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# File 'lib/acts_as_versioned.rb', line 487 def without_locking(&block) current = ActiveRecord::Base.lock_optimistically ActiveRecord::Base.lock_optimistically = false if current begin block.call ensure ActiveRecord::Base.lock_optimistically = true if current end end |
#without_revision(&block) ⇒ Object
Executes the block with the versioning callbacks disabled.
Foo.without_revision do
@foo.save
end
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# File 'lib/acts_as_versioned.rb', line 465 def without_revision(&block) class_eval do CALLBACKS.each do |attr_name| alias_method "orig_#{attr_name}".to_sym, attr_name alias_method attr_name, :empty_callback end end block.call ensure class_eval do CALLBACKS.each do |attr_name| alias_method attr_name, "orig_#{attr_name}".to_sym end end end |