module Sequel::Plugins::InputTransformer

  1. lib/sequel/plugins/input_transformer.rb

InputTransformer is a plugin that allows generic transformations of input values in model column setters. Example:

Album.plugin :input_transformer
Album.add_input_transformer(:reverser){|v| v.is_a?(String) ? v.reverse : v}
album = Album.new(name: 'foo')
album.name # => 'oof'

You can specifically set some columns to skip some input input transformers:

Album.skip_input_transformer(:reverser, :foo)
Album.new(foo: 'bar').foo # => 'bar'

Usage:

# Make all model subclass instances support input transformers (called before loading subclasses)
Sequel::Model.plugin :input_transformer

# Make the Album class support input transformers 
Album.plugin :input_transformer

Methods

Public Class

  1. apply
  2. configure

Public Class methods

apply (model, *)
[show source]
# File lib/sequel/plugins/input_transformer.rb, line 26
def self.apply(model, *)
  model.instance_exec do
    @input_transformers = {}
    @skip_input_transformer_columns = {}
  end
end
configure (model, transformer_name=nil, &block)

If an input transformer is given in the plugin call, add it as a transformer

[show source]
# File lib/sequel/plugins/input_transformer.rb, line 35
def self.configure(model, transformer_name=nil, &block)
  model.add_input_transformer(transformer_name, &block) if transformer_name || block
end