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Search - "nullable"
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Yesterday: Senior dev messages out a screenshot of someone using an extension method I wrote (he didn’t know I wrote it)..
SeniorDev: “OMG…that has to be the stupidest thing I ever saw.”
Me: “Stupid? Why?”
SeniorDev: “Why are they having to check the value from the database to see if it’s DBNull and if it is, return null. The database value is already null. So stupid.”
Me: “DBNull is not null, it has a value. When you call the .ToString, it returns an empty string.”
SeniorDev: ”No it doesn’t, it returns null.”
<oh no he didn’t….the smack down begins>
Me: “Really? Are you sure?”
SeniorDev: “Yes! And if the developer bothered to write any unit tests, he would have known.”
Me: “Unit tests? Why do you assume there aren’t any unit tests? Did you look?”
<at this moment, couple other devs take off their head phones and turn around>
SeniorDev:”Well…uh…I just assumed there aren’t because this is an obvious use case. If there was a test, it would have failed.”
Me: “Well, let’s take a look..”
<open up the test project…navigate to the specific use case>
Me: “Yep, there it is. DBNull.Value.ToString does not return a Null value.”
SeniorDev: “Huh? Must be a new feature of C#. Anyway, if the developers wrote their code correctly, they wouldn’t have to use those extension methods. It’s a mess.”
<trying really hard not drop the F-Bomb or two>
Me: “Couple of years ago the DBAs changed the data access standard so any nullable values would always default to null. So no empty strings, zeros, negative values to indicate a non-value. Downside was now the developers couldn’t assume the value returned the expected data type. What they ended up writing was a lot of code to check the value if it was DBNull. Lots of variations of ‘if …’ , ternary operators, some creative lamda expressions, which led to unexpected behavior in the user interface. Developers blamed the DBAs, DBAs blamed the developers. Remember, Tom and DBA-Sam almost got into a fist fight over it.”
SeniorDev: “Oh…yea…but that’s a management problem, not a programming problem.”
Me: “Probably, but since the developers starting using the extension methods, bug tickets related to mis-matched data has nearly disappeared. When was the last time you saw DBA-Sam complain about the developers?”
SeniorDev: “I guess not for a while, but it’s still no excuse.”
Me: “Excuse? Excuse for what?”
<couple of awkward seconds of silence>
SeniorDev: “Hey, did you guys see the video of the guy punching the kangaroo? It’s hilarious…here, check this out.. ”
Pin shoulders the mat…1 2 3….I win.6 -
aslkfjasf. i've spent 12 hours today (and lots more over the past two days) trying to reproduce a bug that my [sort of] coworker insists is present. I haven't seen any proof of it anywhere, let alone steps to reproduce it.
I've poured through the code, following all of its tangled noodles of madness from start to fuck-this-shit. I've read and reread the pile of demon excrement so many times i can still read the code when i close my eyes. so. not. kidding.
anyway, the coworker person is getting mad because i haven't fixed the bug after days, and haven't even reproduced it yet. This feature is already taking way too fucking long so I totally don't blame him. but urghh it's like trying to unwind a string someone tied into a tight little ball of knots because they were bored.
but i just figured out why I haven't been able to reproduce it.
the stupid fucking unreliable dipshit ex-"i'm a rockstar and my code rocks"-CTO buffoon (aka API Guy, aka the `a=b if a!=b`loody pointless waste of mixed spaces and tabs) that wrote the original APIs ... 'kay, i need to stop for breath.
The dumbfuck wrote the APIs (which I based the new ones on mostly wholesale because wtf messy?), but he never implemented a very fucking important feature for a specific merchant type. It works for literally every type except the (soon-to-be) most common one. and it just so happens that i need that very specific feature to reproduce this bug.
Why is that one specific merchant type handled so differently? No fucking idea.
But exactly how they're handled differently is why I'm so fking pissed off. It's his error checking. (Some) of his functions return different object types (hash, database object, string, nullable bool, ...) depending on what happened. like, when creating a new gift, it (eventually...) either returns a new Gift object or a string error basically saying "ahhh everything's broken again!" -- which is never displayed, compared against, or recorded anywhere, ofc. Here, the API expects a Hash. That particular function call *always* returns a Hash, no matter what happens in the myriad, twisting, and interwoven branches the code could take. So the check is completely pointless.
EXCEPT. if an object associated with another object associated with the passed object (yep) has a type of 8. in which case, one of the methods in the chain returns a PrintQueue that gets passed back up the call stack. implicitly, and nested three levels in. ofc.
And if the API doesn't get its precious Hash, it exclaims that the merchant itself is broken, and tells the user to contact support. despite, you know, the PrintQueue showing that everything worked perfectly. In fact, that merchant's printer will be happily printing away in the background.
All because type checking is this guy's preferred method of detecting errors. (Raise? what's that? OOP? Nah, let's do diverging splintered-monolithic with some Ruby objects thrown in.)
just.
what the crap.
people should keep their mental diarrhea away from their keyboards.
Anyway. the summary of this long-winded, exhaustion-fueled tirade is that our second-most-loved feature doesn't work on our second-most-common merchant type.
and ofc that was the type of merchant i've been testing on. for days. while having both a [semi] coworker and my boss growing increasingly angry at me for my lack of progress.
It's also a huge feature, and the boss doesn't understand that. (can't or won't, idk)
So.
yep.
that's been my week.
...... WHAT A FUCKING BUFFOON!rant sheogorath's spaghetti erroneous error management vomit on her sweater already your face is an anti-pattern dipshit api guy two types bad four types good root swears oh my3 -
Working on a database priorly designed and maintained by some private agency.
The fuck I'm dealing with!
Boolean values stored as 'TRUE'/'FALSE'. It's varchar, my dudes.
There are no FK relations. Just the values of IDs in a column.
There are no indexes, all on just the PKs, nothing else. Nothing.
Null, what's that? I'm dealing with 'N/A', my dudes.
Unique key, what's that? The table which stores users has all the fields nullable. Email is not unique ( even though that's the required behaviour).
ALL the numeric values are stored as varchar. Varchar, my dudes. Varchar. '1', '1.1'
And finally, the good ole, 1 table to rule them all. Normalisation, fuck that.
And what's the root cause of all this? My PM used to hand them Excel sheets she maintains on her local system. FTW. I don't have a enough explanations.7 -
I'm currently rewriting perfectly clean and functioning Scala code in Java (because "Enterprise", yay). The amount of unnecessary boilerplate I have to add is insane. I'm not even talking big complicated code but two liners or the lack of simple things like a range from 5 to 10.
Why do I have to write
List<Position> occupiedPositions = placedEntities.stream()
.flatMap((pe) -> pe.occupiedPositions().stream())
.collect(Collectors.toList());
instead of simply
val occupiedPositions = placedEntities.flatMap(_.occupiedPositions)
Why on earth does `occupiedPositions.distinct` suddenly become a monstrosity like `occupiedPositions.stream().distinct().collect(Collectors.toList())` where the majority of code is pure boilerplate? And this is supposed to be the new and better Java8 api which people use as evidence that Java is now suddenly "functional" (yeah no, just no).
Why do APIs that annotate parameters with @Nullable throw NullPointerExceptions when I pass a null? Why does the compiler not help prevent such stupidity? Why do we use static typing PLUS those annotations and it still crashes at runtime like every damn dynamic, interpreted language out there? That's not unfortunate, it's a complete waste of time.
Why is a simple idea like a range from x to 10 (in scala literally `x to 10`) not by default included in Java? There's Guava's version of Range which does not have a helper for integer ranges (even though they are the most used ones). Then there's apache.commons version which _has_ a helper for integers, but is strangely not iterable (wtf I don't even...).
Speaking of Iterable: How difficult could it be to convert an abstract Iterable<T> into a concrete List<T>? In scala it's surprisingly `someIterable.toList`. I found nothing like that so I took to stackoverflow where I found a thread in which people suggested everything from writing your own ListUtils helper class, using Guava (which is a huge dependency!) to using the new Java8 features inline (which is still about three lines long). I didn't know this was such a hard problem in computer science, TIL.
How anyone can be productive in this abomination of a language is beyond me now, even though I've used it for many years while learning to code (back then I didn't know there were much better ways to do things). The only good part is that I have to endure this nonsense for only about 3 days longer then I'm free again!12 -
I prefer android phones. Am in the oddball here? I had a client ask me if I owned an iPhone. I said I don't, all I have are Androids. He is shipping me an iPhone so I can test our app on it.
Hmm.13 -
Dear God, please grant me patience when my clients are lawyers and English teachers. Remind me that computers are okay with spelling errors but these people are not.2
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!rant
Got back into android development recently and while everything was pretty flawless ( I managed to get the basic concepts implemented in a day) something wasn't right.
For some reason I was not happy with the code i wrote, although I took examples from google and tried to adapt their code style. It looked aweful. I hated my code.
But the code itself wasn't the core of the problem. I could easily add new features and replace components with new implementations without breaking the app. All those "good code quality" identifiers were there.
Turn out the problem is Java. Or to be more specific: Java 1.6
Every listener which only calls a single function once a worker has finished needs 6 lines of code. If you implement the inferface in the class it gets messy once there are multiple workers and you have a generic interface. And there are no lambdas!
So I made the switch to Kotlin.
The app was converted to kotlin in 30 Minutes. Android studio can convert the classes automatically and very little manual work is needed afterwards.
After that I spent 2 hours replacing the old java concepts with Kotlin concepts: lamdas, non-nullable types, getters and setters in kotlin style (which in this case is c# style) and some other great thing.
The code is good looking now. I like it. I like kotlin as it has a lot of cool things.
Its super easy to learn. It took me about 2 hours to get into it. It combines concepts from java, javascript, c# and maybe a few other languages to form a modern jvm 1.6 compatible typesafe language.
Android dev is fun again!2 -
Just published vscode extension to auto transform object accessors to nullable / safer accessors (&& chain).
search for “vscode-oat” in marketplace.
Looking for feedbacks :)10 -
Guess who forced unwrapped Nullable value after making sure it was null... Yup that was me
(ಥ,_」ಥ)
(ノಥ,_」ಥ)ノ彡┻━┻4 -
Was just told to put 0 if field doesn’t exist In database instead of marking the column nullable. That is driving me crazy bull and 0 are not the same two different meanings.17
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In what fucking programming language a constructor can return a nullable value???
Swift of course. :|
Fuck apple :-)5 -
I had rough week last week. Accidentally deployed dev code to production, soon found out there was no production version of code to do a redeploy. Deployed another app to production, it was working fine then another Dev changed a data type in the database from bool to nullable Boolean which broke some Linq queries. Looked like I deployed crap code. 3rd week with company.
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I get this compliment when I just started to learn C# and wrote a class to convert DB time zone on azure windows and Linux app services.
“Wow, didn’t know you can convert nullable datetimeoffset this way, I’m going to use this class in rest of our Projects. “
It really boost my mood for weeks.1 -
I visit devrant to be more clever in life. Sad. I know. And I know 99.9 percent of the people I know won't care.1
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Once upon a time we had to integrate our backend with the billing service of another company. They sent us a Swagger API Description, describing the payload they will send to us. Everything was ok, and we implemented it.
We told them our background was ready to run some tests, but they got some error. After some quick debug i asked for the actual payload they just sent to me.
The payload had different field types, different field names and non-nullable keys was explicitly coming as null.
THEY DIDN'T FOLLOW THEIR OWN SPECIFICATIONS! -
When you meet up with the boss and accidentally commit to a difficult project...(face palm)..oh well the wine was good!1
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Why it is such a pain to scan nullable types on Golang database.sql
Now I have to chose between:
1- Using temporaty variable to hold the nullable value just to soon after check and set the zero value if it is null
2- Adding coalesce to my sql query for the zero values.
Did I mention that there are around 20 collumns that are nullable...1 -
It's a shame that people don't want to use F# but prise C# for how cool it became and continue becoming. At the same time, little do they know that many of the features were simply drawn from F#.
It's just rediculous how far this OO and C-Style syntax crap has progressed. They keep copying things from functional langugages, making the initial language to be a monstrocity like C++ is now, insted of just using languages like C#. I mean, it was right there before C#: async/task, immutablility, records, indexes, lambdas, non-null by default, who the hell knows what else.
Besides, many people (in my company at least) are just blindly overengineering with patterns and shit, where a simple function would be just enogh.
Watch some some NDC talks about F#, in particular those of Scott Wlaschin. It's just better in so many ways: less noice (I'm looking at you, brackets, commas and semicolons), the whole LOT of type inference and less duplication (just look at the C# signatures of linq methods - it's difficult to read them), immutability by default, non-nullable by default, ADTs and pattern matching, some neat features like type providers (how many times have used "paste special" or an online tool to create C# classes from a JSON/XML file, and how many times have your regenrated it because of schema changes?) and units of measure.
Of course, in some cases it's not optimal, in some cases mutable datastructures of C# are better for performance. But dude, how many performance critical systems have you wrote in C#? I mean, if it comes to performance you should use Rust or C++ or C after all.
*sighs*15 -
Need advice. I run all my development on a desktop that I have been happy with for years. Now it keep crashing (probably due to forti client which I need for a contract).
I am frozen in looking for a replacement. Will a laptop give me the freedom I want but not enough power and USB options? Will I be wasting 1000k buying one?
I do all sorts of dev: visual studio, eclipse, PHP, c#, Apache, IIS, SQL server, MySQL.
I pretty much have to be prepared for anything.
But I keep thinking a laptop will give me this mobility that I may never use.
I probably should stick with a desktop.3 -
Sydochen has posted a rant where he is nt really sure why people hate Java, and I decided to publicly post my explanation of this phenomenon, please, from my point of view.
So there is this quite large domain, on which one or two academical studies are built, such as business informatics and applied system engineering which I find extremely interesting and fun, that is called, ironically, SAD. And then there are videos on youtube, by programmers who just can't settle the fuck down. Those videos I am talking about are rants about OOP in general, which, as we all know, is a huge part of studies in the aforementioned domain. What these people are even talking about?
Absolutely obvious, there is no sense in making a software in a linear pattern. Since Bikelsoft has conveniently patched consumers up with GUI based software, the core concept of which is EDP (event driven programming or alternatively, at least OS events queue-ing), the completely functional, linear approach in such environment does not make much sense in terms of the maintainability of the software. Uhm, raise your hand if you ever tried to linearly build a complex GUI system in a single function call on GTK, which does allow you to disregard any responsibility separation pattern of SAD, such as long loved MVC...
Additionally, OOP is mandatory in business because it does allow us to mount abstraction levels and encapsulate actual dataflow behind them, which, of course, lowers the costs of the development.
What happy programmers are talking about usually is the complexity of the task of doing the OOP right in the sense of an overflow of straight composition classes (that do nothing but forward data from lower to upper abstraction levels and vice versa) and the situation of responsibility chain break (this is when a class from lower level directly!! notifies a class of a higher level about something ignoring the fact that there is a chain of other classes between them). And that's it. These guys also do vouch for functional programming, and it's a completely different argument, and there is no reason not to do it in algorithmical, implementational part of the project, of course, but yeah...
So where does Java kick in you think?
Well, guess what language popularized programming in general and OOP in particular. Java is doing a lot of things in a modern way. Of course, if it's 1995 outside *lenny face*. Yeah, fuck AOT, fuck memory management responsibility, all to the maximum towards solving the real applicative tasks.
Have you ever tried to learn to apply Text Watchers in Android with Java? Then you know about inline overloading and inline abstract class implementation. This is not right. This reduces readability and reusability.
Have you ever used Volley on Android? Newbies to Android programming surely should have. Quite verbose boilerplate in google docs, huh?
Have you seen intents? The Android API is, little said, messy with all the support libs and Context class ancestors. Remember how many times the language has helped you to properly orient in all of this hierarchy, when overloading method declaration requires you to use 2 lines instead of 1. Too verbose, too hesitant, distracting - that's what the lang and the api is. Fucking toString() is hilarious. Reference comparison is unintuitive. Obviously poor practices are not banned. Ancient tools. Import hell. Slow evolution.
C# has ripped Java off like an utter cunt, yet it's a piece of cake to maintain a solid patternization and structure, and keep your code clean and readable. Yet, Cs6 already was okay featuring optionally nullable fields and safe optional dereferencing, while we get finally get lambda expressions in J8, in 20-fucking-14.
Java did good back then, but when we joke about dumb indian developers, they are coding it in Java. So yeah.
To sum up, it's easy to make code unreadable with Java, and Java is a tool with which developers usually disregard the patterns of SAD. -
Why do you fucking retards make the tinyint column nullable AGAIN and use 'null' as false instead of setting fucking false!
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So int and datetime are not nullable in c#, so you cant assign null to them
While you can't compare int to null (int a; a==null won't compile) you can do it with datetime objects.
Microsoft, can you please get your shit together?
Took me like an hour to realize my date is actually the 1.1.0001 and not null.1 -
I put a ton of effort into a site that started out as a volunteer effort and turned into a paying job. This is my lowest paying client but has the most arrogant people. Let's see we have graduates from elite universities, super smart, 'rich' business people or they were just plain athletic. But i have found a lot of them are arrogant, selfish jerks to me. I put in a lot of thought and time into what i do for them (my lowest paying client) and they treat me sooo poorly without apology. It makes me sad.1
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I'm working on a simple Flask project. But when I try to work with the database I got an error called "No module named MySQLdb". I also got error when I try to install "mysql clint" with this command:-pip install mysqlclient. So I searched for the solution of this problem but every time I find someone told to download "MySQL client" from this website:-
https://lfd.uci.edu/~gohlke/...
But the "MySQL client" file is no longer available on that website.
please help me by giving that file or any other way. You can also check my project from here:-
https://drive.google.com/file/d/...
unfortunately, my operating system is Android 6.0
Here is the code:-
from flask import Flask,render_template, request
from flask_sqlalchemy import SQLAlchemy
app= Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = "mysql://localhost/codingthunder/"
db = SQLAlchemy(app)
class Contacts(db.Model):
sno = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(80), nullable=False)
phone_num = db.Column(db.String(14), nullable=False)
mes = db.Column(db.String(120), nullable=False)
date = db.Column(db.String(12), nullable=False)
email = db.Column(db.String(20), nullable=False)
@app.route("/home")
def home():
return render_template("index.html")
@app.route("/about")
def about():
return render_template("about.html")
@app.route("/contact", methods=['GET','POST'])
def contact():
if(request.method=='POST'):
name=request.form.get('name')
email=request.form.get('email')
phone=request.form.get('phone')
message=request.form.get('message')
entry=Contacts(name=name,phone_num=phone,mes=message, date="2019-09-01 12:06:20", email=email)
db.session.add(entry)
db.session.commit()
return render_template("contact.html")
@app.route("/post")
def post():
return render_template("post.html")
app.run(debug=True)4 -
Sifting through data soothes my brain. I decided to audit my own phone records and I am like what the hell, who have I been talking to?!??