Project

csvlite

0.0
No commit activity in last 3 years
No release in over 3 years
This ruby gem provides simple interface to load CSV file into SQL lite object and allow simple querying
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 Dependencies

Development

~> 1.11
~> 10.0
~> 3.0

Runtime

~> 1.3
 Project Readme

Csvlite

Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file lib/csvlite. To experiment with that code, run bin/console for an interactive prompt.

Installation

Add this line to your application's Gemfile:

gem 'csvlite'

And then execute:

$ bundle

Or install it yourself as:

$ gem install csvlite

Usage

User Table

id name
1 Peter
2 Dan
3 Joey

Post Table

id user_id title
1 4 Nothing
2 3 To
3 1 Do

One off queries (V1)

query = <<-SQL
    SELECT post.title FROM user INNER JOIN post ON user.id = post.user_id WHERE user.name = 'Peter'
SQL

result = CSVLite.query_files(['user.csv', 'post.csv'], query)

One off queries (V2)

query = <<-SQL
    SELECT post.title FROM user INNER JOIN post ON user.id = post.user_id WHERE user.name = 'Peter'
SQL

lite = CSVLite.new
lite.load_multiple(['user.csv', 'post.csv'])
result = lite.query(query)

Custom table name

query = <<-SQL
    SELECT post.title FROM member INNER JOIN post ON member.id = post.user_id WHERE member.name = 'Peter'
SQL

lite = CSVLite.new
lite.load_from_csv_file('user.csv', 'member')
lite.load_from_csv_file('post.csv')
result = lite.query(query)

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]/csvlite. 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.