pg_search

https://github.com/casecommons/pg_search

Ruby

pg_search builds ActiveRecord named scopes that take advantage of PostgreSQL’s full text search

CohortsService#cohorts

Get an array of hashes that looks like:

    [
      {
        registration_month: Date.new(2017, 3),
        activity_months: [3, 2, 1],
        total: 3
        inactive: 0
     },
     etc.

The `months` array is always from oldest to newest, so it's always
non-strictly decreasing from left to right.

Source | Google | Stack overflow

Edit

git clone [email protected]:casecommons/pg_search.git
cd pg_search
open

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-CohortsService-cohorts-for-pr

# Commit to git

git add git commit -m "better docs for CohortsService#cohorts"

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-CohortsService-cohorts-for-pr

hub pull-request

# Celebrate!