Initial commit

.gitignore

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+*.gem
+*.rbc
+.bundle
+.config
+.yardoc
+Gemfile.lock
+InstalledFiles
+_yardoc
+coverage
+doc/
+lib/bundler/man
+pkg
+rdoc
+spec/reports
+test/tmp
+test/version_tmp
+tmp

Gemfile

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+source 'https://rubygems.org'
+gemspec

LICENSE.md

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+Copyright (c) 2013, Mirego
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+- Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer.
+- Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+- Neither the name of the Mirego nor the names of its contributors may
+  be used to endorse or promote products derived from this software without
+  specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.

README.md

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+# ActiveRecord::JSONValidator
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+```ruby
+gem 'activerecord_json_validator'
+```
+
+## Usage
+
+```ruby
+create_table "users" do |t|
+  t.string   "name"
+  t.json     "profile"
+end
+
+class User < ActiveRecord::Base
+  # Constants
+  PROFILE_JSON_SCHEMA = Rails.root.join('config', 'schemas', 'profile.json_schema')
+
+  # Validations
+  validates :name, presence: true
+  validates :profile, presence: true, json: { schema: PROFILE_JSON_SCHEMA }
+end
+```
+
+## License
+
+`ActiveRecord::JSONValidator` is © 2013 [Mirego](http://www.mirego.com) and may be freely distributed under the [New BSD license](http://opensource.org/licenses/BSD-3-Clause).  See the [`LICENSE.md`](https://github.com/mirego/activerecord_json_validator/blob/master/LICENSE.md) file.
+
+## About Mirego
+
+Mirego is a team of passionate people who believe that work is a place where you can innovate and have fun. We proudly build mobile applications for [iPhone](http://mirego.com/en/iphone-app-development/ "iPhone application development"), [iPad](http://mirego.com/en/ipad-app-development/ "iPad application development"), [Android](http://mirego.com/en/android-app-development/ "Android application development"), [Blackberry](http://mirego.com/en/blackberry-app-development/ "Blackberry application development"), [Windows Phone](http://mirego.com/en/windows-phone-app-development/ "Windows Phone application development") and [Windows 8](http://mirego.com/en/windows-8-app-development/ "Windows 8 application development") in beautiful Quebec City.
+
+We also love [open-source software](http://open.mirego.com/) and we try to extract as much code as possible from our projects to give back to the community.

Rakefile

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+require 'bundler'
+require 'rake'
+require 'bundler/gem_tasks'
+require 'rspec/core/rake_task'
+
+task default: :spec
+
+desc 'Run all specs'
+RSpec::Core::RakeTask.new(:spec) do |task|
+  task.pattern = 'spec/**/*_spec.rb'
+end

activerecord_json_validator.gemspec

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+# coding: utf-8
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'active_record/json_validator/version'
+
+Gem::Specification.new do |spec|
+  spec.name          = 'activerecord_json_validator'
+  spec.version       = ActiveRecord::JSONValidator::VERSION
+  spec.authors       = ['Rémi Prévost']
+  spec.email         = ['[email protected]']
+  spec.description   = 'ActiveRecord::JSON::Validator makes it easy to validate JSON attributes with a JSON schema.'
+  spec.summary       = spec.description
+  spec.homepage      = 'https://open.mirego.com/activerecord_json_validator'
+  spec.license       = 'BSD 3-Clause'
+
+  spec.files         = `git ls-files`.split($/)
+  spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
+  spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
+  spec.require_paths = ['lib']
+
+  spec.add_development_dependency 'bundler', '~> 1.3'
+  spec.add_development_dependency 'rake'
+  spec.add_development_dependency 'rspec', '~> 2.14'
+
+  spec.add_dependency 'activerecord', '>= 3.0.0'
+end

lib/active_record/json_validator/validator.rb

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+class JsonValidator < ActiveModel::EachValidator
+  def initialize(options)
+    options.reverse_merge!(message: :invalid_json)
+    options.reverse_merge!(schema: nil)
+
+    super
+  end
+
+  def validate_each(record, attribute, value)
+    json_value = JSON.dump(value)
+    errors = ::JSON::Validator.fully_validate(options.fetch(:schema), json_value)
+
+    if errors.any?
+      record.errors.add(attribute, options.fetch(:message), value: value)
+    end
+  end
+end

lib/active_record/json_validator/version.rb

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+module ActiveRecord
+  module JSONValidator
+    VERSION = '0.0.1'
+  end
+end

lib/activerecord_json_validator.rb

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+require 'active_record'
+require 'active_record/json_validator/version'
+require 'active_record/json_validator/validator'