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Play framework 2 sample app migrated to mysql, to showcase play framework suport on openshift

branch: master
README.md

Play framework 2 scala computer-database sample application with mysql

This project just takes the computer-database sample project, scala version, and modifies it to work with mysql database.

It's main purpouse is to demonstrate how to deploy a play framework 2 application on openshift.

To get up and running with openshift, check this quickstart: https://github.com/opensas/play2-openshift-quickstart

These are the steps you have to follow to deploy this app on openshift:

A step by step example: deploying computer-database sample app to openshift

Create the computerdb application on openshift, with mysql and phpadmin support.

    rhc app create -a computerdb -t diy-0.1
    rhc app cartridge add -a computerdb -c mysql-5.1
    rhc app cartridge add -a computerdb -c phpmyadmin-3.4

Add upstream repo

    cd computerdb
    git remote add upstream https://github.com/opensas/openshift-play2-computerdb.git
    git pull -s recursive -X theirs upstream master

Run the stage task, add your changes to git's index, commit and push the repo to openshift (you can also just run the openshift_deploy script):

play clean compile stage
git add .
git commit -m "deploying computerdb application with mysql support"
git push

That's it, you can now see computerdb demo application running at:

http://computerdb-yournamespace.rhcloud.com

List of changes needed to port computer-database sample app from H2 to mysql

conf/evolutions/default/1.sql

  • added engine=innodb, to enable referential integrity
  • replaced sequences with autoincrement for id fields
  • replaced 'SET REFERENTIAL_INTEGRITY' command with 'SET FOREIGN_KEY_CHECKS'
  • replaced timestamp fields with datetime

conf/evolutions/default/2.sql

  • splitted the computer data between 2.sql and 3.sql file (avoid bug in evolutions running on mysql)

models/Models.scala

  • removed 'nulls last' from Computer.list sql query
  • modified Computer.insert to skip id field (because is auto-assigned by mysql)

Licence

This project is distributed under Apache 2 licence.

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