10 Mar 2015
Atomicity comes from the greek word ‘a-tomos’ which means
undevidable, atomic database transactions means that we want either all the
database operations to happen together, or none of them at all, which means that
we want them as a single undevidable operation, we would want that because not
doing any of the changes at all would be much less harmful than doing the a
part of the change.
02 Mar 2015
We’ve all written this kind of code at some point of our lives, a query that
requires a join, and adding a condition to the joined table to limit the
returned results, but then by doing that you’re adding a dependency, and you are
coupling the two models together.
01 Mar 2015
I’ve added an RSS feed for the blog to make it easier for people who are reading
this blog - if any - be able to keep track of my posts and find out when the new
posts come out, you can access the rss feed from this link or you
can just hit the feed button on your browser.
28 Feb 2015
I was helping a fellow developer on his rails project, and I found something
interesting in his code, it was a query on how to find if two date intervals are
intersecting or not.
23 Feb 2015
Defining law of demeter
The law of demeter simply states that objects should
only talk to them selves or objects directly associated to them selves, because
otherwise this is considered a dependency and would reduce maintainability and
cause tight coupling between objects.