Here are some notes after the recent research into deep linking into the apps. The goal was to launch the app on clicks on links in email. Traditionally, we were using a custom scheme to register the app as a handler for, but this didn’t work quite well. So notes:
Quick tutorial on how to filter the ListView in NativeScript.
If you are developer and using Mac, you must absolutely know offline documentation and snippets browser Dash by now. If not, go check it out. It will change your life.
This morning I submitted my own docset for NativeScript 1.7.1. It’s been accepted later today and can be found in Preferences -> Downloads -> User Contributed. Search for “NativeScript”.
I’m planning on adding How-to’s and guides from the official documentation site in it in the upcoming release.
This is the showcase post that touches a tiny part of what Elixir and the accompanying tooling can help you build in very little time.
Sometimes I just need to follow the changes to files and act upon that. There are plenty of “watchers” out there, like Guard and Watchr, but if I really don’t want to drag the bag of gems, here’s what I do…
The collection of cool things you can do in YAML.
All my free time I’m spending on a my own project that I decided to write in Elixir, Rails and CoffeeScript. There is the service backend that runs heavily multi-threaded and so Elixir / Erlang was a natural choice.
In every third project I see SQL like this:
SELECT
(SELECT COUNT(*)
FROM table
WHERE group_id = X AND completed = 1) as completed,
(SELECT COUNT(*)
FROM table
WHERE group_id = X) as total
FROM table
WHERE group_id = X
GROUP BY group_id
As you might understand the intention is to count all records in the group and those with completed flag set. This solution gives me creeps.
Here’s how I would write the same:
SELECT
COUNT(NULLIF(completed, 0)) as completed,
COUNT(*) as total
FROM table
WHERE group_id = X
Now pick your DB book and go read what NULLIF function is, and do me a favor. No more crazy subselects, ok?
At the time of writing Titanium is at: 3.3.0 GA
In the project I’m supporting we juggle with camera shots like crazy. One of the recent requests from the client was to show square thumbnails in the list of taken pictures. While the requirement itself is pretty reasonable, Titanium doesn’t make our life easier.