Initial commit

Author: syguer

.gitignore

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+/.bundle/
+/.yardoc
+/Gemfile.lock
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/spec/reports/
+/tmp/

.rspec

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+--format documentation
+--color

.travis.yml

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+language: ruby
+rvm:
+  - 2.2.2
+before_install: gem install bundler -v 1.10.6

Gemfile

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+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in attribute-string.gemspec
+gemspec

LICENSE.txt

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+The MIT License (MIT)
+
+Copyright (c) 2015 syguer
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

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+# StringAttributes
+String utility for ActiveRecord
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+```ruby
+gem 'string_attributes'
+```
+
+And then execute:
+
+    $ bundle
+
+Or install it yourself as:
+
+    $ gem install string_attributes
+
+## Usage
+
+### Strip
+strip attribute
+
+```ruby
+class User
+  attr_string :name, strip: true
+end
+
+User.create(name: "hoge  ")
+u = User.last
+p u.name #=> "hoge"
+```
+
+## Development
+
+After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
+
+To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
+
+## Contributing
+
+Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/attribute-string.
+
+
+## License
+
+The gem is available as open source under the terms of the [MIT License](http://opensource.org/licenses/MIT).
+

Rakefile

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+require "bundler/gem_tasks"
+require "rspec/core/rake_task"
+
+RSpec::Core::RakeTask.new(:spec)
+
+task :default => :spec

bin/console

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+#!/usr/bin/env ruby
+
+require "bundler/setup"
+require "attribute/string"
+
+# You can add fixtures and/or initialization code here to make experimenting
+# with your gem easier. You can also use a different console, if you like.
+
+# (If you use this, don't forget to add pry to your Gemfile!)
+# require "pry"
+# Pry.start
+
+require "irb"
+IRB.start

bin/setup

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+#!/bin/bash
+set -euo pipefail
+IFS=$'\n\t'
+
+bundle install
+
+# Do any other automated setup that you need to do here

lib/string_attributes.rb

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+require "string_attributes/version"
+require "string_attributes/error"
+require "string_attributes/base"
+require "string_attributes/railtie" if defined? Rails
+
+module StringAttributes
+end

lib/string_attributes/base.rb

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+require 'active_support/concern'
+require 'active_support/dependencies/autoload'
+require 'string_attributes/strip'
+
+module StringAttributes
+  module Base
+    extend ActiveSupport::Concern
+    extend ActiveSupport::Autoload
+
+    include StringAttributes::Strip
+
+    module ClassMethods
+      def attr_string(attribute, options = {})
+        validate_attribute!(attribute)
+
+        set_strip(attribute) if options[:strip]
+      end
+
+      private
+
+      def validate_attribute!(attribute)
+        unless attribute.is_a?(String) || attribute.is_a?(Symbol)
+          fail StringAttributes::InvalidArgument, 'Attribute must be String or Symbol'
+        end
+
+        unless self.column_names.include? attribute.to_s
+          fail StringAttributes::UnkownAttribute, "#{self.name} does not have #{attribute}"
+        end
+
+        true
+      end
+    end
+  end
+end

lib/string_attributes/error.rb

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+module StringAttributes
+  class InvalidArgument < StandardError; end
+
+  class UnkownAttribute < StandardError; end
+end

lib/string_attributes/railtie.rb

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+module StringAttributes
+  class Railtie < ::Rails::Railtie
+    ActiveSupport.on_load :acrive_record do
+      ActiveRecord::Base.send(:include, StringAttributes::Base)
+    end
+  end
+end

lib/string_attributes/strip.rb

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+require 'active_support/concern'
+
+module StringAttributes
+  module Strip
+    extend ActiveSupport::Concern
+
+    module ClassMethods
+      def set_strip(attribute)
+        class_eval do
+          before_validation do
+            __send__("#{attribute}=", __send__(attribute).strip)
+          end
+        end
+      end
+    end
+  end
+end

lib/string_attributes/version.rb

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+module StringAttributes
+  VERSION = "0.1.0"
+end
+

spec/spec_helper.rb

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+$LOAD_PATH.unshift File.expand_path('../../lib', __FILE__)
+$LOAD_PATH.unshift File.expand_path('./support/dummy_model', __FILE__)
+require 'string_attributes'
+require 'active_record'
+require 'support/dummy_model/user'
+
+ActiveRecord::Base.send(:include, StringAttributes::Base)
+ActiveRecord::Base.establish_connection(:adapter => "sqlite3", :database => ":memory:")
+
+RSpec.configure do |config|
+  config.before :all do
+    ActiveRecord::Schema.define(version: 1) do
+      create_table :users do |t|
+        t.string :name
+      end
+    end
+  end
+
+  config.after :all do
+    ActiveRecord::Base.connection.tables.each do |table|
+      ActiveRecord::Base.connection.drop_table(table)
+    end
+  end
+end

spec/string_attributes_spec.rb

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+require 'spec_helper'
+
+describe StringAttributes do
+  it 'has a version number' do
+    expect(StringAttributes::VERSION).not_to be nil
+  end
+
+  context ".attr_string" do
+    subject { User.attr_string attribute }
+
+    context "when invalid attribute given" do
+      let(:attribute) { [] }
+
+      it { expect{ subject }.to raise_error StringAttributes::InvalidArgument }
+    end
+
+    context "when empty attribute given" do
+      let(:attribute) { "" }
+
+      it { expect{ subject }.to raise_error StringAttributes::UnkownAttribute }
+    end
+
+    context "when unknown column given" do
+      let(:attribute) { "hoge" }
+
+      it { expect{ subject }.to raise_error StringAttributes::UnkownAttribute }
+    end
+  end
+
+  context "stlip" do
+    subject { User.create(name: "hoge  ") }
+
+    before { User.reset_callbacks(:validation) }
+
+    context "when strip: true" do
+      before { User.attr_string :name, strip: true }
+
+      it { expect(subject.name).to eq "hoge" }
+    end
+
+    context "when strip: false" do
+      before { User.attr_string :name, strip: false }
+
+      it { expect(subject.name).to eq "hoge  " }
+    end
+  end
+end

spec/support/dummy_model/user.rb

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+class User < ActiveRecord::Base
+end

string_attributes-0.1.0.gem

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+# coding: utf-8
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'string_attributes/version'
+
+Gem::Specification.new do |spec|
+  spec.name          = "string_attributes"
+  spec.version       = StringAttributes::VERSION
+  spec.authors       = ["syguer"]
+  spec.email         = ["[email protected]"]
+
+  spec.summary       = %q{String utility for ActiveRecord}
+  spec.description   = %q{Add string utility to model of ActiveRecord}
+  spec.homepage      = "https://github.com/syguer/string_attributes"
+  spec.license       = "MIT"
+
+  spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
+  spec.bindir        = "bin"
+  spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
+  spec.require_paths = ["lib"]
+
+  spec.add_dependency "activerecord", "~> 4.0"
+  spec.add_dependency "activesupport", "~> 4.0"
+
+  spec.add_development_dependency "bundler", "~> 1.10"
+  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rspec"
+  spec.add_development_dependency "pry"
+end