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2018-04-26T17:15:04.556Z
0
{"feed":"The-Daily-WTF","feedTitle":"The Daily WTF","feedLink":"/feed/The-Daily-WTF","catTitle":"Entertainment","catLink":"/cat/entertainment"}

Robert needed to fetch some details about pump configurations from the backend. The API was poorlry documented, but there were other places in the code which did that, so a quick search found this block:

var getConfiguration = function(){
    ....
    var result = null;
    result = getPumpConfiguration (areaID,subStationID,mngmtUnitID,lastServiceDate,service,format,result);
    result = getPumpConfiguration (areaID,subStationID,null,lastServiceDate,null,format,result);
    result = getPumpConfiguration (areaID,subStationID,null,lastServiceDate,service,null,result);
    result = getPumpConfiguration (areaID,subStationID,mngmtUnitID,lastServiceDate,null,null,result);
    result = getPumpConfiguration (areaID,subStationID,null,lastServiceDate,null,null,result);
    return result;
}

This collection of lines lurked at the end of a 100+ line function, which did a dozen other things. At a glance, it’s mildly perplexing. I can see that result gets passed into the function multiple times, so perhaps this is an attempt at a fluent API? So this series of calls awkwardly fetches the data that’s required? The paraameters vary a little with every call, so that must be it, right?

Let’s check the implementation of getPumpConfiguration

function getPumpConfiguration (areaID,subStationID,mngmtUnitID,lastServiceDate,service,format,result) {
    if (result==null) {
    ...
    result = queryResult;
    ...
    }
    return result;
}

Oh, no. If the result paraameter has a value… we just return it. Otherwise, we attempt to fetch data. This isn’t a fluent API which loads multiple pieces of data with separate requests, it’s an attempt at implementing retries. Hopefully one of those calls...

Every time you change existing code, you break some other part of the system. You may not realize it, but you do. It may show up in the form of a broken unit test, but that presumes that a) said unit test exists, and b) it properly tests the aspect of the code you are changing. Sadly, more often than not, there is either no test to cover your change, or any test that does exist doesn't handle the case you are changing.

This is especially true if the thing you are changing is simple. It is even more true when changing something as complex as working with a boolean.

Mr A. was working at a large logistics firm that had an unusual error where a large online retailer was accidentally overcharged by millions of dollars. When large companies send packages to logistics hubs for shipment, they often send hundreds or thousands of them at a time on the same pallet, van or container (think about companies like Amazon). The more packages you send in these batches the less you pay (a single lorry is cheaper than a fleet of vans). These packages are lumped together and billed at a much lower rate than you or I would get.

One day, a particular developer saw something untidy in the code - an uninitialized...

The dependency graph of your application can provide a lot of insight into how objects call each other. In a well designed application, this is probably mostly acyclic and no one node on the graph has more than a handful of edges coming off of it. The kinds of applications we talk about *here, on the other hand, we have a name for their graphs: the Enterprise Dependency and the Big Ball of Yarn.

Thomas K introduces us to an entirely new iteration: The Big Ball of Mandelbrot

This gives new meaning to points “on a complex plane”.

What you’re seeing here is the relationship between stored procedures and tables. Circa 1995, when this application shambled into something resembling life, the thinking was, “If we put all the business logic in stored procedures, it’ll be easy to slap new GUIs on there as technology changes!”

Of course, the relationship between what the user sees on the screen and the underlying logic which drives that display means that as they changed the GUI, they also needed to change the database. Over the course of 15 years, the single cohesive data model ubercomplexificaticfied itself as each customer needed a unique GUI with a unique feature set which mandated unique tables and stored procedures.

By the time Thomas came along to start a pseudo-greenfield GUI in ASP.Net, the first and simplest feature he needed to implement involved calling a 3,000 line stored procedure which...

We often point to dates as one of the example data types which is so complicated that most developers can’t understand them. This is unfair, as pretty much every data type has weird quirks and edge cases which make for unexpected behaviors. Floating point rounding, integer overflows and underflows, various types of string representation…

But file-not-founds excepted, people have to understand Booleans, right?

Of course not. We’ve all seen code like:

if (booleanFunction() == true) …

Or:

if (booleanValue == true) {
    return true;
} else {
    return false;
}

Someone doesn’t understand what booleans are for, or perhaps what the return statement is for. But Paul T sends us a representative line which constitutes a new twist on an old chestnut.

if ( Boolean.TRUE.equals(functionReturningBooleat(pa, isUpdateNetRevenue)) ) …

This is the second most Peak Java Way to test if a value is true. The Peak Java version, of course, would be to use an AbstractComparatorFactoryFactory<Boolean> to construct a Comparator instance with an injected EqualityComparison object. But this is pretty close- take the Boolean.TRUE constant, use the inherited equals method on all objects, which means transparently boxing the boolean returned from the function into an object type, and then executing the comparison.

THe if (boolean == true) return true; pattern is my personal nails-on-the-chalkboard code block. It’s not awful, it just makes me cringe. Paul’s submission is like an angle-grinder on a chalkboard.

...

"On my admittedly old and cheap phone, Google Maps seems to have confused the definition of the word 'trip'," writes Ivan.

 

"When you're Gas Networks Ireland, and don't have anything nice to say, I guess you just say lorem ipsum," wrote Gabe.

 

Daniel D. writes, "Google may not know how I got 100 GB, but they seem pretty sure that it's expiring soon."

 

Peter S. wrote, "F1 finally did it. The quantum driver Lastname is driving a Ferrari and chasing him- or herself in Red Bull."

 

Hrish B. writes, "I hope my last name is not an example as well."

 

Peter S. wrote, "Not sure what IEEE wants me to vote for. But I would vote for hiring better coders."

 

"Well, at least they got my name right, half of the time," Peter S. writes.

 

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In programming, sometimes the ordering of your data matters. And sometimes the ordering doesn’t matter and it can be completely random. And sometimes… well, El Dorko found a case where it apparently matters that it doesn’t matter:

DirectoryInfo di = new DirectoryInfo(directory);
FileInfo[] files = di.GetFiles();
DirectoryInfo[] subdirs = di.GetDirectories();

// shuffle subdirs to avoid problematic places
Random rnd = new Random();
for( int i = subdirs.Length - 1; i > 0; i-- )
{
    int n = rnd.Next( i + 1 );
    DirectoryInfo tmp = subdirs[i];
    subdirs[i] = subdirs[n];
    subdirs[n] = tmp;
}

foreach (DirectoryInfo dir in subdirs)
{
   // process files in directory
}

This code does some processing on a list of directories. Apparently while coding this, the author found themself in a “problematic place”. We all have our ways of avoiding problematic places, but this programmer decided the best way was to introduce some randomness into the equation. By randomizing the order of the list, they seem to have completely mitigated… well, it’s not entirely clear what they’ve mitigated. And while their choice of shuffling algorithm is commendable, maybe next time they could leave us a comment elaborating on the problematic place they found themself in.

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Have you ever secured something with a lock? The intent is that at some point in the future, you'll use the requisite key to regain access to it. Of course, the underlying assumption is that you actually have the key. How do you open a lock once you've lost the key? That's when you need to get creative. Lock picks. Bolt cutters. Blow torch. GAU-8...

In 2004, Ben S. went on a solo bicycle tour, and for reasons of weight, his only computer was a Handspring Visor Deluxe PDA running Palm OS. He had an external, folding keyboard that he would use to type his notes from each day of the trip. To keep these notes organized by day, he stored them in the Datebook (calendar) app as all-day events. The PDA would sync with a desktop computer using a Handspring-branded fork of the Palm Desktop software. The whole Datebook could then be exported as a text file from there. As such, Ben figured his notes were safe. After the trip ended, he bought a Windows PC that he had until 2010, but he never quite got around to exporting the text file. After he switched to using a Mac, he copied the files to the Mac and gave away the PC.

Ten years later, he decided to go through all of the old notes, but he couldn't open the files!

Uh oh.

The Handspring company had...

We talk a lot about the sort of wheels one shouldn’t reinvent. Loads of bad code stumbles down that path. Today, Mary sends us some code from their home-grown unit testing framework.

Mary doesn’t have much to say about whatever case of Not Invented Here Syndrome brought things to this point. It’s especially notable that this is Python, which comes, out of the box, with a perfectly serviceable unittest module built in. Apparently not serviceable enough for their team, however, as Burt, the Lead Developer, wrote his own.

His was Object Oriented. Each test case received a TestStepOutcome object as a parameter, and was expected to return that object. This meant you didn’t have to use those pesky, readable, and easily comprehensible assert… methods. Instead, you just did your test steps and called something like:

  outcome.setPassed()

Or

  outcome.setPassed(False)

Now, no one particularly liked the calling convention of setPassed(False), so after some complaints, Burt added a setFailed method. Developers started using it, and everyone’s tests passed. Everyone was happy.

At least, everyone was happy up until Mary wrote a test she expected to see fail. There was aa production bug, and she could replicate it, step by step, at the Python REPL. So that she could “catch” the bug and “prove” it was dead, she wanted a unit test.

The unit test passed.

The bug was still there, and she continued to be able to replicate it manually.

She tried outcome.setFailed() and outcome.setFailed(True) and outcome.setFailed("OH FFS...

Yasmin needed to fetch some data from a database for a report. Specifically, she needed to get all the order data. All of it. No matter how much there was.

The required query might be long running, but it wouldn’t be complicated. By policy, every query needed to be implemented as a stored procedure. Yasmin, being a smart prograammer, decided to check and see if anybody had already implemented a stored procedure which did what she needed. She found one called GetAllOrders. Perfect! She tested it in her report.

Yasmin expected 250,000 rows. She got 10.

She checked the implementation.

CREATE PROCEDURE initech.GetAllOrders
AS
BEGIN
    SELECT TOP 10
        orderId,
        orderNo,
        orderCode,
        …
    FROM initech.orders INNER JOIN…
END

In the original developer’s defense, at one point, when the company was very young, that might have returned all of the orders. And no, I didn’t elide the ORDER BY. There wasn’t one.

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"I wonder what events, or lawsuits, lead TP-Link to add this warning presumably targeted individuals who updated firmware just ahead of performing medical procedures," writes Andrew.

 

"WalMart was very concerned I didn't bag my bags," wrote Rob C.

 

"I sure hope the pilots' map is more accurate than the one they show the passengers," wrote Maddie J.

 

"To me, messages like this are almost like saying to the user 'See? You are the reason why this is broken. Now go and code a fix for it.'," writes Philip B.

 

Brian J. wrote, "To add insult to injury here, neither the 'Yes' or 'No' button worked. Especially the "No" button."

 

Aankhen wrote, "If nothing else, CrashPlan is very confident, I’ll give it that."

 

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Being a software architect is a difficult task. Part of the skill is rote software design based upon the technology of choice. Part of it is the very soft "science" of knowing how much to design to make the software somewhat extensible without going so far as to design/build something that is overkill. An extreme version of this would be the inner platform effect.

Way back when I was a somewhat new developer, I was tasked with adding a fairly large feature that required the addition of a database to our otherwise database-less application. I went to our in-team architect, described the problem, and asked him to request a modest database for us. At the time, Sybase was the in-house tool. He decreed that "Sybase sucks", and that he could build a better database solution himself. He would even make it more functional than Sybase.

At the time, I didn't have a lot of experience, especially with databases, but intuition told me that Sybase had employed countless people for more than a decade to build and tweak Sybase. When I pointed this out, and the fact the it was unlikely that he was going to build a better database than all that effort - by himself - in only a few days, I received a full-on dressing...

Your software is terrible, but that doesn’t make it special. All software is terrible, and yes, you know this is true. No matter how good you think it is, bugs and performance problems are inevitable.

But it’s not just the ugly internals and mysterious hacks and the code equivalent of duct-tape and chewing gum which make your software terrible. Your software exists to fill some need for your users, and how do you know that’s happening? And worse, when your application fails, how do you understand what happened?

In the past, we’ve brought your attention to Raygun, which allows you to add a real-time feedback loop that gives you a picture of exactly what’s happening on their device or their browser. And now, Raygun is making it even better, with Raygun APM.

Raygun Application Performance Monitoring (APM) tackles the absolute worst part of releasing/supporting applications: dealing with performance issues. With Raygun APM, you can get real-time execution stats on your server-side code, and find out quickly which specific function, line, or database call is slowing down your application.

You won’t have to wait for someone to notice the issue, either- Raygun APM proactively identifies performance issues and builds a workflow for solving them. Raygun APM sorts through the mountains of data for you, surfacing the most important issues so they can be prioritized, triaged and acted on, cutting your Mean Time to Resolution...

Simon T tugged at his collar when the video played. It wasn’t much, just a video of their software being tested. It wasn’t the first time they’d tested Simon’s most recent patch, but it was going to be the last time. There were a lot of eyes in the conference room, and they were all turned on him.

Simon worked for the kind of company which made missiles. The test in the video was one of the highly expensive tests of a real missile under real-world conditions. Several of these had already been done with this software package, so Simon hadn’t expected any problems to crop up. In this case, though, the missile left its launcher and sailed in a perfect parabolic arc into the ground 5 meters away from the launch site.

Missiles diving headfirst into the ground mere meters from their launch site was officially considered a bad thing. There were all sorts of checkpoints and automated tests and simulations that were supposed to keep this thing from happening. It didn’t take long to find the problem.

if roll < 0 then
{
  {we're adjusting the roll here cos it's too high so we are going to take just half
  roll = roll / 2;
  zcdem = zdem; { add gravity }
}
else
{
  {roll is clockwise}
  …
}

This code happens to be Turbo Pascal 4, a version of the language released in 1987. Simon’s job had been to create this Turbo Pascal code by porting the logic...

When writing up a Code SOD, a big part of the goal is to provide context for the bad code. Why is it bad, what would be better,, etc. In other words, we need to… ShowContext. Vasco O has exactly the method for that.

protected string ShowContext(string context)
{
    if (!string.IsNullOrEmpty(context))
    {
        return string.Format("{0}", context);
    }
    else
    {
        return string.Empty;
    }
}

If the context string has content, return a new string, via string.Format which is exactly the same as the input. If it’s null or empty, return an empty string. This does at least mean that the function isn’t entirely useless- it guarantees no nulls will get returned.

This method was called everywhere, but it did nothing. Vasco removed it.

As we've seen previously, not all government jobs are splashy. Someone has to maintain, for example, the database that keeps track of every legal additive to food so that paranoid hippies can call them liars and insist they all cause cancer and autism. Today's submitter, Cass, had just released an update when users started getting the dreaded blue Internal Error screen—never a good start to the week.

Everything that's added to food is added for a reason; otherwise, why spend money doing it? The additive website allows searching by function, as well as by name. For example, some items might be alternative sweeteners, while others might be coloring agents. The problem of the week turned out to be in the stored procedure related to this particular search, which was intuitively titled prc_AdditiveRegulation_GetResults_NEW. Not to be confused with the entirely unused prc_AdditiveRegulation_GetResults, prc_AdditiveRegulation_GetResults_DEV, or prc_AdditiveRegulation_GetResults_PROD.

As Cass quickly discovered, prc_AdditiveRegulation_GetResults_NEW is a hefty chunk of code. 1044 lines, to be precise, all dedicated to returning a list of additives and their functions. After hours of searching, Cass managed to isolate the portion that was causing the problem:


UPDATE #techfunction
 SET bitNum = TableRank.PowerRank
 FROM (SELECT RowId,TechfunctionId,POWER(2.0,DENSE_RANK() OVER (PARTITION BY TechFunctionId ORDER BY RowId)) AS PowerRank    -- need to use 2.0 instead of 2 to avoid arithmetic overflow error (mark, 6/11/2012)
      ...

Sam B. writes, "Only £11.99 for a call_user_func_array() warning? What a bargain!"

 

Brian W. writes, "Maybe Buoy Health knows something I don't know..."

 

"Undefined weight limit? I see an error...but also a challenge," wrote Andrew S.

 

"I think HxD and I disagree on what identical really means," writes Adam G.

 

Evan T. wrote, "Ticket form...and two New Ticket Requests...When in doubt, I'm 'inherintly' going to choose the middle one."

 

"Two gig. Or not two gig...That is the question," writes Morgan.

 

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Containers make deployment easy, or at least that’s what it says on the label. It makes intuitive sense, though- instead of wrangling all your dependencies on a host OS, and then trying to understand why your app can’t see them, you bundle all the dependencies into a container and push that around when you want to deploy. It Just Works™.

Sandra had just left a company which didn’t use containers, but containers wouldn’t have helped: the didn’t have a working deployment process, period. They didn’t even try deploying before the production push 9 months into the project, and the first twelve attempts consistently failed because someone hadn’t tested something, or someone didn’t update the script, or the requirements changed and were signed off but nobody told the development team. It meant a lot of nights, a lot of weekends, and a lot of meetings which devolved into circular firing squads.

Enter Initrovent™, a cutting edge, SaaS provider which serviced the event planning industry. Karl, the Big Boss, assured Sandra that he completely understood the importance of deployments. “Oh, you don’t have to tell me,” he said. “I’ve seen so many failed deployments. We’re actually moving our platform into dockerized microservices with continuous deployment. We’ve build a process which works for us.”

Overall, the gig sounded like a good fit, so Sandra started a few Mondays later. She spent most of the day “on boarding”, so it wasn’t until late in...

Tim B did a little work with an e-learning vendor, with some very old code. The code in question happened to be so old that “this is server side JavaScript” was a horrifying novelty when they wrote it, instead of a standard deployment option via Node.

The code in question is bad date handling code, which isn’t impressive. What is impressive is that it demonstrates a terrible approach to dates which I’ve never seen before. It doubles as a terrible approach to arrays which I have seen before, but… it remains special.

  for (i=0; intMonthsToDisplay>0; i++)  
  {
        if (IsLeapYearDate(intMonth+i+1 +"/1/" + intYear) )  
        {
          strDaysInMonths = "312931303130313130313031312931303130313130313031"  
        }
        else  
        {
          strDaysInMonths = "312831303130313130313031312831303130313130313031"  
        }
        arrNoDaysInMonth[i] = parseInt(strDaysInMonths.substr((intMonth+i)*2,2));  
        intMonthsToDisplay = intMonthsToDisplay - 1;  
        intTotalDays = intTotalDays +arrNoDaysInMonth[i]  
  }

Yes, strDaysInMonths is our old “30 days has November…” rhyme, compressed down to two characters a month....

Ian S was going through the portfolio of applications maintained by his company, and stumbled across one that… well, from what he could tell, wasn’t written by a developer so much as spawned by an accident. 90% of the code was copy-pasted from somewhere else in the code, flow-of-control mostly used Exceptions as an attempt at doing GOTO-style logic, and there were piles of unused variables or variables used before initialization. Some modules/packages in the application were full of syntax errors, which implied that they weren’t actually included or used anywhere.

From that mess, Ian extracted this.

while True:
   try:
       product.save (force_insert=True)
   except:
       pass

   if Product.objects.filter(version=pv,productType=pt).count() is not 0:
       break
   time.sleep (1)

This is Django, which means we’re looking at some ORM-based code. First, we try and save a product object into the database. If that fails for any reason… we ignore that failure. Instead, we check to see if there are any products with the same version/type combination- I’m going to go out on a limb and guess that this is the unique identifier of the product, but I wouldn’t put down money on it- and if there is at least one entity that matches… we break out of the infinite loop.

If, on the other hand, there isn’t- that means that we failed to insert the product. So let’s just wait a second and...

If you've looked at job postings, you know that there's one thing really big and trendy right now, and that's blockchains. But the other trendy thing is Machine Learning! We'll talk about the Daily WTF's Initial Coin Offering at a later date, but for right now, we're excited to announce our new ML efforts.

Specifically, we recognize that there's a certain structure and pattern to our articles, and instead of paying human writers, we can instead employ the latest machine learning systems to generate new articles that will be indistinguishable from the articles you know and love. The ideal tool, of course, would be an Recurrent Neural Network, which we could train based off previous articles. Unfortunately, that involves a lot of GPU power, and we're already using our GPUs to get ready for that ICO I mentioned. Shhhh. It's a secret.

In any case, since we couldn't use an RNN, we opted for the next best thing: a Markov Chain. I'm sure what follows will be a perfectly good article.


>actually all the saw the IP address the variable night Saving stream(r).collectors.toMap(x -&gt; {try{return x.getInputStream(file != null, because the that can handle the servers were of the users who cannoying to times, they know how company he made a case where I might the mess of correct time. But oncept would financial time. While the time issues had to be users were off for it in their IDE was assigned to be used as that exchange. The server1...