simple_csv_creator

SimpleCsvCreator

SimpleCsvCreator has DSL to build the csv. It's inspired by activeadmin csv

Installation

Add this line to your application's Gemfile:

gem 'simple_csv_creator'

And then execute:

$ bundle

Or install it yourself as:

$ gem install csv_creator

Usage

SimpleCsvCreator has DSL to build the csv it's inspired by activeadmin csv example:

class User
  attr_reader :name, :age, :gender
  def initialize(name, age, gender)
    @name = name
    @age = age
    @gender = gender
  end
end

user1 = User.new('test', 20, 'female')
user2 = User.new('mobile', 13, 'male')
csv_creator = SimpleCsvCreator.schema do
  column(:name) # if without block then it will run the name given(user.name), header name will be titleize of name
  column(:age) { |r| r.age + ' years' } # if with block will run the block
  column('User Gender') { |r| r.gender } # if want to use custom title need to give the block
end
result = SimpleCsvCreator.simple_generate([user1, user2])
csv_parse = CSV.parse(result)
csv_parse:
[
  ['Name', 'Age', 'User Gender'],
  ['test', '20 years', 'female'],
  ['mobile', '13 years', 'male']
]

Sometimes you want to do lazy fetch e.g: find_each method in ActiveRecord. If you use simple_generate you won't be able to use this kind of method because simple_generate need the array with all of its elements. To handle it you can use generate_using method

e.g:

generator = Proc.new do |&block|
  resources.each do |resource|
    block.call(resource)
  end
end
result = SimpleCsvCreator.generate_using(generator)
end

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.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/csv_creator. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

License

The gem is available as open source under the terms of the MIT License.