Importing Data With ROM and Transproc

Importing data into a database can be a complicated task. This process can be quite painful as you need to deal with data transformation, filling in missing information, specifying validation rules, handling errors and so on. Without proper tools to solve this problem it can become more complicated than it should be. In my current project at work I’m dealing with exactly that problem - we’re importing data from YAML documents into a PostgreSQL database....

July 15, 2015 · 9 min · Piotr Solnica

New Transproc Released

Transproc is a small library I wrote a couple of months back. It’s been growing nicely and yesterday its 0.3.0 version was released which redefined how it works and what it really is. I’m exicited about this project as it’s been used in ROM to implement its Mapper component and turned out to be very powerful and flexible while remaining simple. In this post I’d like to show you what transproc really is and how it can be used with other libraries....

July 13, 2015 · 3 min · Piotr Solnica

Introducing Transproc - functional data transformations for Ruby

Data mapping, or how I prefer to call it - data transformations, is something I’ve tackled in a couple of projects already. First, in DataMapper ORM with its Property API. Then in Virtus, a project that started as an extraction of DataMapper Property API to a separate gem. Then Virtus evolved into something more powerful and quite a lot of people really enjoy using it until this day. The approach used in Virtus and many other libraries similar to Virtus is typical OO design....

April 16, 2015 · 4 min · Piotr Solnica

Introducing Yesql for Ruby using ROM

Last week we released a new beta version of ROM and you’ll be able to read more about it on the official blog later this week. Today I’d like to tell you a little bit about a new adapter that I built for ROM that’s based on Yesql from the Clojure world. When I was working on ROM I was paying attention to other languages too searching for inspiration and Yesql was one of my favorite discoveries....

March 2, 2015 · 5 min · Piotr Solnica

About the new ROM release and what happens next

Last month I wrote about rebooting ROM project and today I’m very happy that after almost 300 commits I pushed Ruby Object Mapper 0.3.0 to rubygems.org. It’s a big milestone as the project enters a new path and ships with a complete support for SQL databases thanks to Sequel. More official and less personal announcement is right here. In this post I’d like to give you more insight into what’s happening with the project and how its development is going to be organized and why....

November 24, 2014 · 4 min · Piotr Solnica

Help Us Build ROM

Many people have been asking me how they can help us build ROM. This was the hardest question I’ve heard next to “when will it be ready?”. My usual reply was suggesting to join our IRC channel and talk but it really isn’t a good answer as it’s difficult and time consuming to talk about same things all over again that’s why I decided to finally put together this post and explain what’s going on and how you can help....

May 17, 2014 · 3 min · Piotr Solnica

A Closer Look at How Ruby Object Mapper Works

Last Friday we finally released the first version of Ruby Object Mapper. It’s a big step for the project as we’ve established foundation of the whole system. There are many missing features, crucial ones, like support for RDBMS, server-side generated keys or a full-blown Unit of Work but…we’ll be adding those in the upcoming future releases. With the foundation in place it’ll be much easier for us to continue working on ROM so you should see frequent releases from now on with important additions....

August 26, 2013 · 6 min · Piotr Solnica