Group By Match Type

A Ruby gem for identifying and grouping CSV records based on matching email or phone number columns.

Install the gem by running:

gem install group_by_match_type

Or add this line to your application's Gemfile:

gem 'group_by_match_type'

And then execute:

bundle install

group_by_match_type INPUT_FILE MATCHING_TYPE [OUTPUT_FILE]

Available matching types:

• same_email: Groups records with matching email addresses
• same_phone: Groups records with matching phone numbers
• same_email_or_phone: Groups records that share either email or phone number

# Match by email, default output
 group_by_match_type contacts.csv same_email

# Match by phone, default output
 group_by_match_type contacts.csv same_phone

# Match by either email or phone, default output
 group_by_match_type contacts.csv same_email_or_phone

# Specify a custom output file location
 group_by_match_type contacts.csv same_email ~/Downloads/my_grouped_contacts.csv

The gem creates a new CSV file with all the original columns plus a new "group_id" column at the end. Records that are considered to be the same person based on the provided matching_type will have the same group_id. If you specify an OUTPUT_FILE, the grouped CSV will be written to that location; otherwise, it will be written as *_grouped.csv next to your input file.

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.

Bug reports and pull requests are welcome on GitHub. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

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