Sha256: 435f416ba47c363790d2f7511f9278a3f142133443f199869cdfeaebcfdc2728
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Size: 1.59 KB
Versions: 7
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Stored size: 1.59 KB
Contents
# Usage:
#
# klass = AnonymousActiveRecord.generate(columns: ['name']) do
# def flowery_name
# "🌸#{name}🌸"
# end
# end
# instance = klass.new(name: 'Darla Charla')
# instance.save!
# instance.flowery_name # => "🌸Darla Charla🌸"
#
module AnonymousActiveRecord
# Generator defines a pseudo anonymous class in a particular namespace of your choosing.
class Generator
DEFAULT_NAME = 'anons'.freeze
attr_reader :klass_namespaces, :table_name, :klass_name
def initialize(table_name, klass_namespaces = [], klass_basename = nil)
@klass_namespaces = Array(klass_namespaces).map(&:to_s).map { |x| x.gsub(/[^a-z0-9]+/i, '_') }
klass_context = [(klass_basename || DEFAULT_NAME).gsub(/[^a-z0-9]+/i, '_').capitalize, SecureRandom.uuid.gsub(/[^a-z0-9]+/i, '_')].join('_')
@table_name = (table_name || klass_context).downcase.to_s
# String#capitalize is Ruby >= 2.4, https://stackoverflow.com/a/3725154/213191
@klass_name = (klass_namespaces << klass_context).join('::')
end
def generate(&block)
# Many moons ago, ActiveRecord allowed anonymous classes to be created like:
# Class.new(ActiveRecord::Base)
# which was useful for specs, and other use cases. But it is now explicitly not supported, see
# https://github.com/rails/rails/issues/8934
eval "class ::#{klass_name} < ActiveRecord::Base; end"
klass = Kernel.const_get(klass_name, true)
klass.class_eval(&block) if block_given?
klass.table_name = table_name
klass
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems