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Posted on March 18, 2017 by Alex Miller on Today I Learned

Rename a Phoenix Application

When we build a Phoenix application with $ mix my_app, our application module name is set to MyApp. This module name, as well as the snake case version, is referenced everywhere, making it very cumbersome if you need to ever rename the application. Here is a shell script I wrote the does the job […]

Posted on March 10, 2017 by Alex Miller on Today I Learned

Common Table Expressions in Postgres

PostgresSQL WITH Queries, also known as Common Table Expressions (CTEs), allows us to write complex queries by defining temporary tables for use in a larger query. In other words, we can create in-memory temporary tables and query against them. Here is an (trivial) example where we want the email addresses of all the users who […]

Posted on February 20, 2017 by Tim Hasse on Today I Learned

Evernote to Blog Post

Today I learned how to publish our TIL posts directly to our blog, straight from my favorite text tool, Evernote . We are simply making the connection with one of our go-to’s, Zapier . The concern with this integration is that our zap is searching for new notes every 15 minutes, so you would need […]

Posted on February 18, 2017 by Alex Miller on Today I Learned

Recursion in Elixir

Coming from an object oriented language with data mutability, learning looping in Elixir required that I let go of my current understanding about iterating over a collection. In fact, just forget looping and think recursion. So, what’s recursion? Recursion is solving a problem whereby one applies the same solution to smaller instances of that problem. […]