initial commit

Author: nigelramsay

.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'
+
+# Specify your gem's dependencies in reference_data.gemspec
+gemspec

LICENSE.txt

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+Copyright (c) 2012 Nigel Ramsay
+
+MIT License
+
+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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+# Easy Reference Data
+
+Used for creating a predefined set of model instances, similar to db:seed, but will update records if entries already exist.
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+    gem 'easy_reference_data'
+
+And then execute:
+
+    $ bundle
+
+Or install it yourself as:
+
+    $ gem install easy_reference_data
+
+## Usage
+
+Place references in 'db/reference/'
+
+References will be loaded in ascending order, so if an order is desired, prepend 000, 001, 002... etc to the filename.
+
+Run with:
+    rake easy:reference_data:load
+
+## Example
+
+The below example ensures that there are 3 users existing in the database after running the 'rake reference_data:load'
+
+### db/reference/000_users.rb
+Easy::ReferenceData.refresh User, :system_code, 'nigel', name: 'Nigel Ramsay', email: 'nigel.ramsay@mailinator.com'
+Easy::ReferenceData.refresh User, :system_code, 'fred', name: 'Fred Schmitt', email: 'fred.schmitt@mailinator.com'
+Easy::ReferenceData.refresh User, :system_code, 'bert', name: 'Bert Symthe', email: 'bert.smythe@mailinator.com'
+
+## Contributing
+
+1. Fork it
+2. Create your feature branch (`git checkout -b my-new-feature`)
+3. Commit your changes (`git commit -am 'Added some feature'`)
+4. Push to the branch (`git push origin my-new-feature`)
+5. Create new Pull Request

Rakefile

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+require "bundler/gem_tasks"

easy_reference_data.gemspec

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+# -*- encoding: utf-8 -*-
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'easy/reference_data/version'
+
+Gem::Specification.new do |gem|
+  gem.name          = "easy_reference_data"
+  gem.version       = Easy::ReferenceData::VERSION
+  gem.authors       = ["Nigel Ramsay"]
+  gem.email         = ["nigel.ramsay@abletech.co.nz"]
+  gem.description   = %q{Used to create a predefined set of model instances}
+  gem.summary       = %q{Loads files from db/reference/*.rb}
+  gem.homepage      = "http://github.com/AbleTech/easy_reference_data"
+
+  gem.files         = `git ls-files`.split($/)
+  gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
+  gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
+  gem.require_paths = ["lib"]
+
+  gem.add_runtime_dependency 'rails', '>= 3.0.0'
+end

lib/easy/reference_data/railtie.rb

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+require 'rails'
+
+module Easy
+  module ReferenceData
+    class Railtie < Rails::Railtie
+      rake_tasks do
+        load "tasks/easy_reference_data.rake"
+      end
+    end
+  end
+end

lib/easy/reference_data/refresh.rb

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+module Easy
+  module ReferenceData
+    def self.refresh(clazz, unique_attribute_symbol, unique_attribute_value, attributes)
+      record = clazz.where(unique_attribute_symbol => unique_attribute_value).first
+
+      if record.nil?
+        record = clazz.new(unique_attribute_symbol => unique_attribute_value)
+      end
+
+      attributes.each_pair do |key, value|
+        record.send "#{key}=", value
+      end
+
+      begin
+        record.save!
+      rescue
+        puts "Save failed for #{record.class}[#{unique_attribute_symbol}: #{unique_attribute_value}] with attributes #{attributes.inspect}"
+        raise
+      end
+
+      record
+    end
+  end
+end

lib/easy/reference_data/version.rb

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+module Easy
+  module ReferenceData
+    VERSION = "0.0.1"
+  end
+end

lib/easy_reference_data.rb

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+require 'easy/reference_data/version'
+require 'easy/reference_data/railtie'
+require 'easy/reference_data/refresh'