The Daily WTF: Curious Perversions in Information Technology

Errors by the Pound

by Mark Bowytz in Error'd on 2020-10-23

"I can understand selling swiss cheese by the slice, but copier paper by the pound?" Dave P. wrote.

22 comments - Last comment @ 09:34

Query Elegance

by Remy Porter in CodeSOD on 2020-10-22

It’s generally hard to do worse than a SQL injection vulnerability. Data access is fundamental to pretty much every application, and every programming environment has some set of rich tools that make it easy to write powerful, flexible queries without leaving yourself open to SQL injection attacks.

And yet, and yet, they’re practically a standard feature of bad code. I suppose that’s what makes it bad code.

22 comments - Last comment @ 07:43

Delete This

by Remy Porter in CodeSOD on 2020-10-21

About three years ago, Consuela inherited a giant .NET project. It was… not good. To communicate how “not good” it was, Consuela had a lot of possible submissions. Sending the worst code might be the obvious choice, but it wouldn’t give a good sense of just how bad the whole thing was, so they opted instead to find something that could roughly be called the “median” quality.

This is a stored procedure that is roughly about the median sample of the overall code. Half of it is better, but half of it gets much, much worse.

32 comments - Last comment @ 2020-10-23

Extended Time

by Remy Porter in CodeSOD on 2020-10-20

The C# "extension method" feature lets you implement static methods which "magically" act like they're instance methods. It's a neat feature which the .NET Framework uses extensively. It's also a great way to implement some convenience functions.

Brandt found some "convenience" functions which were exploiting this feature.

24 comments - Last comment @ 2020-10-22

Don't Not Be Negative

by Remy Porter in CodeSOD on 2020-10-19

One of my favorite illusions is the progress bar. Even the worst, most inaccurate progress bar will make an application feel faster. The simple feedback which promises "something is happening" alters the users' sense of time.

So, let's say you're implementing a JavaScript progress bar. You need to decide if you are "in progress" or not. So you need to check: if there is a progress value, and the progress value is less than 100, you're still in progress.

38 comments - Last comment @ 2020-10-22

Try a Different Address

by Mark Bowytz in Error'd on 2020-10-16

"Aldi doesn't deliver to a ...computer memory address!? Ok, that sounds fair," wrote Oisin.

19 comments - Last comment @ 2020-10-22

A New Generation

by Remy Porter in CodeSOD on 2020-10-15

Mapping between types can create some interesting challenges. Michal has one of those scenarios. The code comes to us heavily anonymized, but let’s see what we can do to understand the problem and the solution.

There is a type called ItemA. ItemA is a model object on one side of a boundary, and the consuming code doesn’t get to touch ItemA objects directly, it instead consumes one of two different types: ItemB, or SimpleItemB.

14 comments - Last comment @ 2020-10-19

Nothing But Garbage

by Remy Porter in CodeSOD on 2020-10-14

Janell found herself on a project where most of her team were offshore developers she only interacted with via email, and a tech lead who had not ever programmed on the .NET Framework, but did some VB6 “back in the day”, and thus “knew VB”.

The team dynamic rapidly became a scenario where the tech lead issued an edict, the offshore team blindly applied it, and then Janell was left staring at the code wondering how to move forward with this.

32 comments - Last comment @ 07:30

Slow Load

by Ellis Morning in Feature Articles on 2020-10-13

After years spent supporting an enterprisey desktop application with a huge codebase full of WTFs, Sammy thought he had seen all there was to be seen. He was about to find out how endlessly deep the bottom of the WTF barrel truly was.

10 comments - Last comment @ 2020-10-20

Intergral to Dating

by Remy Porter in CodeSOD on 2020-10-12

Date representations are one of those long-term problems for programmers, which all ties into the problem that "dates are hard". Nowadays, we have all these fancy date-time types that worry about things like time zones and leap years, and all of that stuff for us. Pretty much everything, at some level, relies on the Unix Epoch. But there is a time before that was the standard.

In the mainframe era, not all the numeric representations worked the same way that we're used to, and it was common to simply define the number of digits you wanted to store. So, if you wanted to store a date, you could define an 8-digit field, and store the date as 20201012: October 10th, 2020.

32 comments - Last comment @ 2020-10-18

Math is HARD!

by Mark Bowytz in Error'd on 2020-10-09

"Boy oh boy! You can't beat that free shipping for the low, low price of $4!" Zenith wrote.

21 comments - Last comment @ 2020-10-14

Translation by Column

by Remy Porter in Feature Articles on 2020-10-08

Content management systems are… an interesting domain in software development. On one hand, they’re one of the most basic types of CRUD applications, at least at their core. On the other, it’s the sort of problem domain where you can get 90% of what you need really easily, but the remaining 10% are the cases that are going to make you pull your hair out.

Which is why pretty much every large CMS project supports some kind of plugin architecture, and usually some sort of marketplace to curate those plugins. That kind of curation is hard, writing plugins tends to be more about “getting the feature I need” and less about “releasing a reliable product”, and thus the available plugins for most CMSes tend to be of wildly varying quality.

19 comments - Last comment @ 2020-10-14

A Long Time to Master Lambdas

by Remy Porter in CodeSOD on 2020-10-07

At an old job, I did a significant amount of VB.Net work. I didn’t hate VB.Net. Sure, the syntax was clunky, but autocomplete mostly solved that, and it was more OR
less feature-matched to C# (and, as someone who needed to handle XML, the fact that VB.Net had XML literals was handy).

Every major feature in C# had a VB.Net equivalent, including lambdas. And hey, lambdas are great! What a wonderful way to express a filter condition.

39 comments - Last comment @ 2020-10-19

Excellent Data Gathering

by Remy Porter in News Roundup on 2020-10-06

In a global health crisis, like say, a pandemic, accurate and complete data about its spread is a "must have". Which is why, in the UK, there's a great deal of head-scratching over how the government "lost" thousands of cases.

Oops.

61 comments - Last comment @ 2020-10-14

Switched Requirements

by Remy Porter in CodeSOD on 2020-10-05

Code changes over time. Sometimes, it feels like gremlins sweep through the codebase and change it for us. Usually, though, we have changes to requirements, which drives changes to the code.

Thibaut was looking at some third party code to implement tooling to integrate with it, and found this C# switch statement:

22 comments - Last comment @ 2020-10-08

No Escape

by Mark Bowytz in Error'd on 2020-10-02

"Last night＆#39;s dinner was delicious!" Drew W. writes.

18 comments - Last comment @ 2020-10-06

Imploded Code

by Remy Porter in CodeSOD on 2020-10-01

Cassi’s co-worker (previously) was writing some more PHP. This code needed to take a handful of arguments, like id and label and value, and generate HTML text inputs.

Well, that seems like a perfect use case for PHP. I can’t possibly see how this could go wrong.

29 comments - Last comment @ 2020-10-07

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