Awesome

RQP2 -- The Relational Query Puzzle Platform

An idea for a platform helping students and teachers of the Relational Model mastering query languages such as Tutorial D and SQL.

State of the project

The current repository is currently used at the University of Louvain for the Databases course (formally LINGI2172) for auto-evaluating student submissions of a practical missions.

More information can be found by contacting Bernard Lambeau.

Installing

On a fresh git clone, with a decent ruby installation (i.e. including bundler):

Install dependencies
```
bundle install --binstubs
```
Some dependencies requiring C compilation may not install properly under MacOS. ARCHFLAGS must be properly set during bundling. It is also possible to install those dependencies manually:
```
env ARCHFLAGS="-arch x86_64" gem install pg -v '0.17.1'
env ARCHFLAGS="-arch x86_64" gem install nokogiri -v '1.6.1'
```
Copy the config example files in config/ and adapt them to your environment.
Make sure that you have both PostgreSQL server and database matching your configuration

Two rake tasks db:drop and db:create exist you may need to adapt them a little bit to your environment. Otherwise simply create the database manually.
Migrate the PostgreSQL database schema and seed some puzzles
```
bin/rake db:migrate
bin/rake db:seed[2014]
```
The seeds from 2014 are defined in database/seeds. Please contribute any new collection.
Make sure that you have both a Rel server and PostgreSQL database for the evaluation tester, as described in the language entry of the database.yml config file.

(Here also, a evaluator:install rake task exists for PostgreSQL but might need adaptations)

(for Rel, java -jar Rel.jar -f/tmp/rel-database -D should make it roughly)

Using the plateform

Getting some help

bin/rqp2 --help
bin/rqp2 help COMMAND

Checking the validaty of a submission according to the XML schema

bin/rqp2 check assets/submission-example.xml

Importing a submission

bin/rqp2 import --year=2014 assets/submission-example.xml

Current year is used by default if not provided explictly
Pass mutliple files to bulk import many submissions

Running the tester

Make sure that both the PostgreSQL evaluation database and the Rel server exist. Then:

bin/rqp2 test

For now the submission to test against is the one from 'Bernard Lambeau'. Pull requests are welcome to make this configurable.

Making reports

bin/rqp2 --year=2014 report

By default, the command generates .html reports in submissions/YEAR/. It supports sending email directly to students, but that options should certainly be used with much precaution.