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Search - "method query"
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I’m surrounded by idiots.
I’m continually reminded of that fact, but today I found something that really drives that point home.
Gather ‘round, everybody, it’s story time!
While working on a slow query ticket, I perused the code, finding several causes, and decided to run git blame on the files to see what dummy authored the mental diarrhea currently befouling my screen. As it turns out, the entire feature was written by mister legendary Apple golden boy “Finder’s Keeper” dev himself.
To give you the full scope of this mess, let me start at the frontend and work my way backward.
He wrote a javascript method that tracks whatever row was/is under the mouse in a table and dynamically removes/adds a “.row_selected” class on it. At least the js uses events (jQuery…) instead of a `setTimeout()` so it could be worse. But still, has he never heard of :hover? The function literally does nothing else, and the `selectedRow` var he stores the element reference in isn’t used elsewhere.
This function allows the user to better see the rows in the API Calls table, for which there is a also search feature — the very thing I’m tasked with fixing.
It’s worth noting that above the search feature are two inputs for a date range, with some helpful links like “last week” and “last month” … and “All”. It’s also worth noting that this table is for displaying search results of all the API requests and their responses for a given merchant… this table is enormous.
This search field for this table queries the backend on every character the user types. There’s no debouncing, no submit event, etc., so it triggers on every keystroke. The actual request runs through a layer of abstraction to parse out and log the user-entered date range, figure out where the request came from, and to map out some column names or add additional ones. It also does some hard to follow (and amazingly not injectable) orm condition building. It’s a mess of functional ugly.
The important columns in the table this query ultimately searches are not indexed, despite it only looking for “create_order” records — the largest of twenty-some types in the table. It also uses partial text matching (again: on. every. single. keystroke.) across two varchar(255)s that only ever hold <16 chars — and of which users only ever care about one at a time. After all of this, it filters the results based on some uncommented regexes, and worst of all: instead of fetching only one page’s worth of results like you’d expect, it fetches all of them at once and then discards what isn’t included by the paginator. So not only is this a guaranteed full table scan with partial text matching for every query (over millions to hundreds of millions of records), it’s that same full table scan for every single keystroke while the user types, and all but 25 records (user-selectable) get discarded — and then requeried when the user looks at the next page of results.
What the bloody fucking hell? I’d swear this idiot is an intern, but his code does (amazingly) actually work.
No wonder this search field nearly crashed one of the servers when someone actually tried using it.
Asdfajsdfk.rant fucking moron even when taking down the server hey bob pass me all the paperclips mysql murder terrible code slow query idiot can do no wrong but he’s the golden boy idiots repeatedly murdered mysql in the face21 -
Had a job interview recently that went well besides one little disagreement... and it has made me question my sanity. Tell me if I'm wrong.
They asked the difference between a GET and POST request.
Wow, that's an easy one, they're giving me a break, I thought to myself.
I said "GET is used to retrieve data from a server, whereas POST is used to add data to a server, via it's body, which a GET lacks" or something like that.
They were like "ya mostly, but GET can be used to enter data into the server too. We were just looking for the body thing."
And I'm like.... yeah, you could do that, but that's not what it's meant for.
They mention stuff about query parameters and I hold steady that GET and POST are different because GET has a specific purpose. Otherwise, we wouldn't need the "method" part of an HTTP request at all. We could just either include a body or not include a body.
I ended it with "Well, POST implies that you are adding data to a server, and GET implies you are querying data from the server. When I'm reading documentation, that's how I quickly determine what an endpoint does."
My confidence was a little shaken at this point. Crazy what two people with (I assume at least) 10+ years of experience telling you you're wrong will do to your confidence.21 -
Guy I work with: Hey can I borrow you for a minute
Me: sure. What do you need?
Him: so this is a project me an the other dev worked on
Me thinking: Well I know he did it all and sent you the project so don't tell me you worked on it
Him: so we use it to do this and this and send an email to this new account I made because (2 minute explanation)
Me thinking: I don't care. Just tell me what your issue is! I already know what it is and does from what you told me the last time when you showed me. Which took an hour of my time.
Him: so he sent me this code which is called <Descriptive name> and in the method we have variables call <descriptive name> and it returns a <variable name>
Me thinking: You mother fucker! I don't give a shit what your method is named, what it the variable names are, and you don't need to read through every line of code to me! Just from the descriptive name you just said I know what it does! What the fuck is your issue!?
Him: we also have these other methods. This one is called <Descriptive name> which does...
Me: are you fucking seriously going to read me your code line by line and tell me what you named your variables AGAIN!?
Him: and we named this one <descriptive name>
Me: you mother fucker...
Him: and it calls this stored procedure. (Literally opens the stored procedure and shows me) and it is called...which has parameters called... And it is a select query that inserts
45 minutes later after he finishes explaining all 3 pages of his code and his 5 stored procedures that the other dev wrote...
Him: So anyway, back to this method. I need to know where to put this method. The other dev said to put it in this file, but where do you think I should put it in here? Should I place it after this last one or before it?
Me thinking: You fucking wasted my fucking time just to ask where to place your mother fucking method that the other dev sent to you in a project with only 3 files, all less than 500 lines of code with comments and regions that actually tell you what you should put there and 5 small stored procedures that were not even relevant to your issue! Why the fuck did you need to treat me as a rubber ducky which would fly away if you did have one because you didn't have an issue, you just didn't know where to put your fucking code! FUCK YOUR METHOD!
Me: Where ever you want
Him: Well I think it won't work if I placed it before this method.
I walked away after that. What a waste of time and an insult to my skills and really unchallenging. He's been coding for years and still can't understand anything code related. I'm tired if helping him. Every time he needs something he always has to read through and explain his shit just to ask me things like this. One time he asked me what to name his variable and another his project. More recently he asked why he couldn't get his project he found online to work. The error clearly stated he needed to use c# 7. His initial solution was to change his sql connection string. 😑
He should just go back to setting up computers and fixing printers. At least then he would never be in the office to bug me or the other dev with things like this.7 -
The gift that keeps on giving... the Custom CMS Of Doom™
I've finally seen enough evidence why PHP has such a bad reputation to the point where even recruiters recommended me to remove my years of PHP experience from the CV.
The completely custom CMS written by company <redacted>'s CEO and his slaves features the following:
- Open for SQL injection attacks
- Remote shell command execution through URL query params
- Page-specific strings in most core PHP files
- Constructors containing hundreds of lines of code (mostly used to initialize the hundreds of properties
- Class methods containing more than 1000 lines of code
- Completely free of namespaces or package managers (uber elite programmers use only the root namespace)
- Random includes in any place imaginable
- Methods containing 1 line: the include of the file which contains the method body
- SQL queries in literally every source file
- The entrypoint script is in the webroot folder where all the code resides
- Access to sensitive folders is "restricted" by robots.txt 🤣🤣🤣🤣
- The CMS has its own crawler which runs by CRONjob and requests ALL HTML links (yes, full content, including videos!) to fill a database of keywords (I found out because the server traffic was >500 GB/month for this small website)
- Hundreds of config settings are literally defined by "define(...)"
- LESS is transpiled into CSS by PHP on requests
- .......
I could go on, but yes, I've seen it all now.12 -
"I'm almost done, I'll just need to add tests!"
Booom! You did it, that was a nuke going off in my head.
No, you shouldn't just need to add tests. The tests should have been written from the get go! You most likely won't cover all the cases. You won't know if adding the tests will break your feature, as you had none, as you refactor your untested mess in order to make your code testable.
When reading your mess of a test case and the painful mocking process you went through, I silently cry out into the void: "Why oh why!? All of this suffering could have been avoided!"
Since most of the time, your mocking pain boils down to not understanding what your "unit" in your "unit test" should be.
So let it be said:
- If you want to build a parser for an XML file, then just write a function / class whose *only* purpose is: parse the XML file, return a value object. That's it. Nothing more, nothing less.
- If you want to build a parser for an XML file, it MUST NOT: download a zip, extract that zip, merge all those files to one big file, parse that big file, talk to some other random APIs as a side-effect, and then return a value object.
Because then you suddenly have to mock away a http service and deal with zip files in your test cases.
The http util of your programming language will most likely work. Your unzip library will most likely work. So just assume it working. There are valid use cases where you want to make sure you acutally send a request and get a response, yet I am talking unit test here only.
In the scope of a class, keep the public methods to a reasonable minimum. As for each public method you shall at least create one test case. If you ever have the feeling "I want to test that private method" replace that statement in your head with: "I should extract that functionality to a new class where that method public. I then can create a unit test case a for that." That new service then becomes a dependency in your current service. Problem solved.
Also, mocking away dependencies should a simple process. If your mocking process fills half the screen, your test setup is overly complicated and your class is doing too much.
That's why I currently dig functional programming so much. When you build pure functions without side effects, unit tests are easy to write. Yet you can apply pure functions to OOP as well (to a degree). Embrace immutability.
Sidenote:
It's really not helpful that a lot of developers don't understand the difference between unit, functional acceptance, integration testing. Then they wonder why they can't test something easily, write overly complex test cases, until someone points out to them: No, in the scope of unit tests, we don't need to test our persistance layer. We just assume that it works. We should only test our businsess logic. You know: "Assuming that I get that response from the database, I expect that to happen." You don't need a test db, make a real query against that, in order to test that. (That still is a valid thing to do. Yet not in the scope of unit tests.)rant developer unit test test testing fp oop writing tests get your shit together unit testing unit tests8 -
After a few weeks of being insanely busy, I decided to log onto Steam and maybe relax with a few people and play some games. I enjoy playing a few sandbox games and do freelance development for those games (Anywhere from a simple script to a full on server setup) on the side. It just so happened that I had an 'urgent' request from one of my old staff member from an old community I use to own. This staff member decided to run his own community after I sold mine off since I didn't have the passion anymore to deal with the community on a daily basis.
O: Owner (Former staff member/friend)
D: Other Dev
O: Hey, I need urgent help man! Got a few things developed for my server, and now the server won't stay stable and crashes randomly. I really need help, my developer can't figure it out.
Me: Uhm, sure. Just remember, if it's small I'll do it for free since you're an old friend, but if it's a bigger issue or needs a full recode or whatever, you're gonna have to pay. Another option is, I tell you what's wrong and you can have your developer fix it.
O: Sounds good, I'll give you owner access to everything so you can check it out.
Me: Sounds good
*An hour passes by*
O: Sorry it took so long, had to deal with some crap. *Insert credentials, etc*
Me: Ok, give me a few minutes to do some basic tests. What was that new feature or whatever you added?
O: *Explains long feature, and where it's located*
Me: *Begins to review the files* *Internal rage wondering what fucking developer could code such trash* *Tests a few methods, and watches CPU/RAM and an internal graph for usage*
Me: Who coded this module?
O: My developer.
Me: *Calm tone, with a mix of some anger* So, you know what, I'm just gonna do some simple math for ya. You're running 33 ticks a second for the server, with an average of about 40ish players. 33x60 = 1980 cycles a minute, now lets times that by the 40 players on average, you have 79,200 cycles per minute or nearly 4.8 fucking cycles an hour (If you maxed the server at 64 players, it's going to run an amazing fucking 7.6 million cycles an hour, like holy fuck). You're also running a MySQLite query every cycle while transferring useless data to the server, you're clusterfucking the server and overloading it for no fucking reason and that's why you're crashing it. Another question, who the fuck wrote the security of this? I can literally send commands to the server with this insecure method and delete all of your files... If you actually want your fucking server stable and secure, I'm gonna have to recode this entire module to reduce your developer's clusterfuck of 4.8 million cycles to about 400 every hour... it's gonna be $50.
D: *Angered* You're wrong, this is the best way to do it, I did stress testing! *Insert other defensive comments* You're just a shitty developer (This one got me)
Me: *Calm* You're calling me a shitty developer? You're the person that doesn't understand a timer, I get that you're new to this world, but reading the wiki or even using the game's forums would've ripped this code to shreds and you to shreds. You're not even a developer, cause most of this is so disorganized it looks like you copy and pasted it. *Get's angered here and starts some light screaming* You're wasting CPU usage, the game can't use more than 1 physical core, and after a quick test, you're stupid 'amazing' module is using about 40% of the CPU. You need to fucking realize the 40ish average players, use less than this... THEY SHOULD BE MORE INTENSIVE THAN YOUR CODE, NOT THE OPPOSITE.
O: Hey don't be rude to Venom, he's an amazing coder. You're still new, you don't know as much as him. Ok, I'll pay you the money to get it recoded.
Me: Sounds good. *Angered tone* Also you developer boy, learn to listen to feedback and maybe learn to improve your shitty code. Cause you'll never go anywhere if you don't even understand who bad this garbage is, and that you can't even use the fucking wiki for this game. The only fucking way you're gonna improve is to use some of my suggestions.
D: *Leaves call without saying anything*
TL;DR: Shitty developer ran some shitty XP system code for a game nearly 4.8 million times an hour (average) or just above 7.6 million times an hour (if maxed), plus running MySQLite when it could've been done within about like 400 an hour at max. Tried calling me a shitty developer, and got sorta yelled at while I was trying to keep calm.
Still pissed he tried calling me a shitty developer... -
2nd rant this week on PHP PDO
PHP 💩:
PHP message: SQLSTATE[HY000]: General error: 2014 Cannot execute queries while other unbuffered queries are active. Consider using PDOStatement::fetchAll(). Alternatively, if your code is only ever going to run against mysql, you may enable query buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute
Me 🤬:
THATS WHAT I’M FUCKING USING. STOP FUCKING COMPLAINING. YOU DIDN’T LIKE THE FUCKING COLONS FOR YOUR FUCKING PARAMATETRS, NOW YOU HATE YOUR OWN FUCKING FETCHALL() METHOD YOU PEICE OF SHIT, AND YOU CAN’T HAVE ANY OTHER ACTIVE QUERIES AS IT’S THE FIRST FUCKING QUERY. ARRGHHH!!!!!
What the actual fuck is wrong with PDO. It bitches about everything 😡.8 -
!rant
the most popular ecommerce solution in php is a massive (cosmological scale) pile of corporate crap (magento) and the next most popular is an abomination (opencart)
after fucking around with both for a month (the client asked for the project to be using only one of the two) I'm still barely reaching any results, and most of my time is wasted with the stupid bloated spaghetti that is opencart FUCK THIS,
like seriously. who the fuck writes a single line three left joins sql querry with four or five aliases a couple concacts and a bunch sorting fuckeries just to query the categories list, then just query the details of the specific category from a different function,
also why the fuck map each language string manually. or the fucking hardcoded seo urls, or the use of myisam for all tables, and no fucking foreign keys, let that settle for a minute, no foreign keys, the delete method in the model has at least a twenty lines, and then he came with the genius idea of duplicating models, in the front and the backend, accessing the same data, as the same user, but different naming conventions
I'm going to convince him to use something sane like codeigniter/laravel/fuelphp or I'll deny the project8 -
One day at the office at whoever built Laravel
Dev: sir, most of devs use php, we can use good old php expressi...
Boss: no, dump all of them, we'll create our own functions that do same job
Dev: ok... So our devs will use mysql, we can use sql quer...
Boss: dump them all too, again, we will make our own functions that dont look anything like that
Dev: we can also use standard...
Boss: NO STANDARDS! Creare every single php method or sql query in another method that does the same job... -
¡rant|rant
Nice to do some refactoring of the whole data access layer of our core logistics software, let me tell an story.
The project is around 80k lines of code, with a lot of integrations with an ERP system and an sql database.
The ERP system is old, shitty api for it also, only static methods through an wrapper to an c++ library
imagine an order table.
To access an order, you would first need to open the database by calling Api.Open(...file paths) (yes, it's an fucking flat file type database)
Now the database is open, now you would open the orders table with method Api.Table(int tableId) and in return you would get an integer value, the pointer.
Now for the actual order. first you need to search for it by setting the search parameter to the column ID of the order number while checking all calls for some BS error code
Api.SetInt(int pointer, int column, int query Value)
Then call the find method.
Api.Find(int pointer)
Then to top this shitcake of an api of: if it doesn't find your shit it will use the "close enough" method of search.
And now to read a singe string 😑
First you will look in the outdated and incorrect documentation given to you from the devil himself and look for the column ID to find the length of the column.
Then you create a string variable with ALL FUCKING SPACES.
Now you call the Api.GetStr(int pointer, int column, ref string emptyString, int length)
Now you have passed your poor string to the api's demon orgy by reference.
Then some more BS error code checking.
Now you have read an string value 😀
Now keep in mind to repeat these steps for all 300+ columns in the order table.
News from the creators: SQL server? yes, sql is good so everything will be better?
Now imagine the poor developers that got tasked to convert this shitcake to use a MS SQL server, that they did.
Now I can honestly say that I found the best SQL server benchmark tool. This sucker creams out just above ~105K sql statements per second on peak and ~15K per second for 1.5 second to read an order. 1.5 second to read less than 4 fucking kilobytes!
Right at that moment I released that our software would grind to an fucking halt before even thinking about starting it. And that me & myself and I would be tasked to fix it.
4 months later and two weeks until functional beta, here I am. We created our own api with the SQL server 😀
And the outcome of all this...
Fixes bugs older than a year, Forces rewriting part of code base. Forces removal of dirty fixes. allows proper unit and integration testing and even database testing with snapshot feature.
The whole ERP system could be replaced with ~10 lines of code (provided same relational structure) on the application while adding it to our own API library.
Best part is probably the performance improvements 😀. Up to 4500 times faster and 60 times less memory usage also with only managed memory.3 -
Sometimes lack of confidence in one area reveals oversight cockyness in stronger areas:
Set up a simple login system from Unity engine to php to mysql db, using android device ID as the login id. Set up database column to accept 32 length varchar for MD5 hashed strings, as I knew the method I was getting the android device ID was automatically being hashed that way and more or less was what I wanted anyway.
Spend 2 days wondering why it would insert the logins with 0 issue, but could never retrieve them. Due to lack of web development and PHP skills, I assumed I was screwing up the handling of mysqli_num_rows() (to check whether I was inserting or selecting in the query) or simply screwing up my SQL queries.
Rewrite the code a few times, even went back to a method I had used in the past.
Today it dawned on me that my testing machines deviceID had been getting trimmed to the 32 character limit. Turns out I didn't account for my workstations device ID to be automatically hashed like the android device id is.
For 2 days I was obtaining and sending a 40 character string to a 32 character limit varchar and blaming my lack of PHP skills........
Back to my niche I go!1 -
My another attempt to write something in rust and I wanted to try tauri as it’s promising competition to electron.
Why use tauri not electron?
Cause in tauri you can write rust plugins that you can interact with directly from javascript without stupid http servers, mangling code and stuff.
From javascript point you only call one method and pass object with arguments into it.
So it took me entire weekend to create draft plugin to interact with sqlite database.
Documentation of tauri is inconsistent. I understand that cause it’s young project and plugins architecture changed frequently.
Moreover my knowledge of rust is near to zero. But overall it was worth it. I like what I achieved.
I can pass sql query and execute it inside mutex guarded singleton. Like I said before I like it cause I can call my plugin directly from javascript.
I know I wasn’t fancy with my implementation. I just created file database connection from json configuration and managed to receive string sql statements. I just print results with rust to console for now.
I will add sending back results later this week.
For me tauri is already better then electron cause code is clear and there is no workaround ( except singleton with connection - cause of limitations of my rust knowledge ).
Live long tauri and fuck you electron.
https://tauri.studio/en/
if you’re interested.2 -
Spring JPA might be annoying sometimes...
public MyResult findFirstByIdentities_CompanyIdAndIdentities_UserIdAndFromDateAndToDateAndFormatAndIdentities_SourceAndStatusInAndCreatedOnAfterOrderByCreatedOnDesc(String companyId, String userId, Date fromDate, Date toDate, String format, String source, Collection<String> status, Date createdOn) {...}
I know I know, efficiency is weeping in a dark corner. Will deal with it later2 -
So I inherited this buggy application my company developed to process state rosters for health care. The daily process fails often and I haven’t been able to figure out why. Then I notice one little thing... it’s essentially using SQL injection as a method of updating records from a file that we receive from outside... there’s no checking for validity of the statements or making sure they’re safe to execute. Just a for in loop and calling a sp to execute the query text under elevated permissions.
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I want to know the name of the evil mastermind who once conceived the "literal" function in Sequelize.
- You design a method to insert pieces of raw SQL exactly the way they are written, no further processing
- You release this method, you call it LITERAL to make sure people know its intended purpose: it is used to insert LITERALLY everything you write, nothing more and nothing less
- Then make sure this "literal" method changes the fucking case of column names. Because that's what "literal" means in the head of this rabid animal: you arbitrarily change the code written by the developer
WHY
WHY ARE ALL AR ORM DESIGNED BY FUCKING ANIMALS
ELOQUENT IS TRASH, SEQUELIZE IS TRASH, TENS OF DEVELOPERS AT WORK TO ALCHEMICALLY CREATE THE MOST ROTTEN CODE THEY POSSIBLY CAN, BECAUSE YOU MUST NOT BE ALLOWED TO WRITE ANY QUERY MORE ADVANCED THAN "SELECT * FROM users WHERE id =1", NOT A FUCKING SHRED OF DOCUMENTATION AND 16 MILLION LAYERS OF ABSTRACTION TO MAKE SURE EVERY BUG FUCKING STAYS THERE, DON'T YOU DARE TO USE A JOIN, DON'T YOU DARE TO TREAT A DMBS LIKE AN ACTUAL FUCKING DBMS INSTEAD OF A HOT STEAMING PILE OF METHODS IMPLEMENTED BY MONKEYS.6 -
There were many issues that came about during my entire employment, but I woke up today with some, honestly, quite bizarre questions from my manager that made me open an account here. This is just the latest in many frustrations I have had.
For context, my manager is more of a "tech lead" who maintains a few projects, the number can probably be counted in one hand. So he does have the knowledge to make changes when needed.
A few weeks ago, I was asked to develop a utility tool to retrieve users from Active Directory and insert them into a MSSQL Database, pretty straight forward and there were no other requirements.
I developed it, tested it, pushed it to our repository, then deployed the latest build to the server that had Active Directory, told my manager that I had done so and left it at that.
A few weeks later,
Manager: "Can you update the tool to now support inserting to both MSSQL and MySQL?"
Me: "Sure." (Would've been nice to know that beforehand since I'm already working on something else but I understand that maybe it wasn't in the original scope)
I do that and redeploy it, even wrote documentation explaining what it did and how it worked. And as per his request, a technical documentation as well that explains more in depth how it works. The documents were uploaded as well.
A few days after I have done so,
Manager: "Can you send me the built program with the documentation directly?"
I said nothing and just did as he asked even though I know he could've just retrieved it himself considering I've uploaded and deployed them all.
This morning,
Manager: "When I click on this thing, I receive this error."
Me: "Where are you running the tool?"
Manager: "My own laptop."
Me: "Does your laptop have Active Directory?"
Manager: "Nope, but I am connected to the server with Active Directory."
Me: "Well the tool can only retrieve Active Directory information on a PC with it."
Manager: "Oh you mean it has to run on the PC with Active Directory?"
Me: "Yeah?"
Manager: "Alright. Also, what is the valid value for this configuration? You mentioned it is the Database connection string."
After that I just gave up and stopped responding. Not long after, he sent me a screenshot of the configuration file where he finally figured out what to put in.
A few minutes later,
Manager: "Got this error." And sends a screenshot that tells you what the error is.
Me: "The connection string you set is pointing to the wrong database schema."
Manager: "Oh whoops. Now it works. Anyway, what are these attribute values you retrieve from Active Directory? Also, what is the method you used to connect/query/retrieve the users? I need to document it down for the higher ups."
Me: "The values are the username, name and email? And as mentioned in the technical documentation, it's retrieving using this method."
The 2+ years I have been working with this company has been some of the most frustrating in my entire life. But thankfully, this is the final month I will be working with them.21 -
I wasn't happy with one of our UI views for editing a database query that consisted of about 50 fields ("editing" being the operative term here, not just viewing. It had to be two-way). Everything was hardcoded and defined manually, with each block of ~10 lines being repeated and mostly identical apart from the occasional double inline field and name of the variable. It had "just ended up that way" over time due to the variable names in the UI being different than the names of the variables that came from the API.
I decided to overhaul it all where I defined the different input components and which fields should be included, then made a function which would generate the page based on these definitions. It was about 500 lines of modularized functions and classes where the class for the actual view was about 50 lines- compared to the 1400+ lines of the previous version.
But, it didn't work. It should, but it "just didn't". There was no error. All I got was a blank, solid white page. I could make a drastic change or try something completely different and I would get the same error, same blank page. API fetch succeeded, value assignments succeeded, the object exists, but if you iterated it it was... empty.
I started getting really discouraged that I had made it too abstract. Maybe I actually made it more complex and unreadable than before. Maybe just hardcoding it all was the better solution after all. Maybe I had gone against KISS and overdesigned it.
I was up pretty late and everyone had gone home. When the last guy left there was that mood where "yeah if I can't make this work we'll just use the current version...".
Turns out I had tried iterating over a property of the set of fields to render, rather than the entire collection. In the old method the variables were a member of an object, but now they were its own object, a change I had made to isolate the set of values which were to be viewed/edited and make them easier to pass back and forth. This member existed since I hadn't cleaned it out yet, but it was empty.
I had been banging my head against this for a whole day and I was ready to admit I had made a mistake and wasted my time before discarding it all, but then I backspaced this one property and the interface went from empty to rendering perfectly and with all functionality intact. I swear god rays were coming out of my screen. -
Working with new guy who is "senior" is such a pain. We had a factory file that is used to populate tables in endpoint tests. The new guy decided to add a static util method called createTestRecord() to a query builder model. Fucking query builder calls in a static method in a query builder class. I send him messages expressing concerns regarding his approach but never got anything back. The guy just ignored me and asked me to review his pr.
I am leaving in 4 months. Release me from my misery. Fuck my life5 -
Why is PHP PDO such a b*tch to work with?
One minute it says it’ll accept one query via one method for one insert but then deny the next query you give it, all because of “:” within bindParam() -
Top 12 C# Programming Tips & Tricks
Programming can be described as the process which leads a computing problem from its original formulation, to an executable computer program. This process involves activities such as developing understanding, analysis, generating algorithms, verification of essentials of algorithms - including their accuracy and resources utilization - and coding of algorithms in the proposed programming language. The source code can be written in one or more programming languages. The purpose of programming is to find a series of instructions that can automate solving of specific problems, or performing a particular task. Programming needs competence in various subjects including formal logic, understanding the application, and specialized algorithms.
1. Write Unit Test for Non-Public Methods
Many developers do not write unit test methods for non-public assemblies. This is because they are invisible to the test project. C# enables one to enhance visibility between the assembly internals and other assemblies. The trick is to include //Make the internals visible to the test assembly [assembly: InternalsVisibleTo("MyTestAssembly")] in the AssemblyInfo.cs file.
2. Tuples
Many developers build a POCO class in order to return multiple values from a method. Tuples are initiated in .NET Framework 4.0.
3. Do not bother with Temporary Collections, Use Yield instead
A temporary list that holds salvaged and returned items may be created when developers want to pick items from a collection.
In order to prevent the temporary collection from being used, developers can use yield. Yield gives out results according to the result set enumeration.
Developers also have the option of using LINQ.
4. Making a retirement announcement
Developers who own re-distributable components and probably want to detract a method in the near future, can embellish it with the outdated feature to connect it with the clients
[Obsolete("This method will be deprecated soon. You could use XYZ alternatively.")]
Upon compilation, a client gets a warning upon with the message. To fail a client build that is using the detracted method, pass the additional Boolean parameter as True.
[Obsolete("This method is deprecated. You could use XYZ alternatively.", true)]
5. Deferred Execution While Writing LINQ Queries
When a LINQ query is written in .NET, it can only perform the query when the LINQ result is approached. The occurrence of LINQ is known as deferred execution. Developers should understand that in every result set approach, the query gets executed over and over. In order to prevent a repetition of the execution, change the LINQ result to List after execution. Below is an example
public void MyComponentLegacyMethod(List<int> masterCollection)
6. Explicit keyword conversions for business entities
Utilize the explicit keyword to describe the alteration of one business entity to another. The alteration method is conjured once the alteration is applied in code
7. Absorbing the Exact Stack Trace
In the catch block of a C# program, if an exception is thrown as shown below and probably a fault has occurred in the method ConnectDatabase, the thrown exception stack trace only indicates the fault has happened in the method RunDataOperation
8. Enum Flags Attribute
Using flags attribute to decorate the enum in C# enables it as bit fields. This enables developers to collect the enum values. One can use the following C# code.
he output for this code will be “BlackMamba, CottonMouth, Wiper”. When the flags attribute is removed, the output will remain 14.
9. Implementing the Base Type for a Generic Type
When developers want to enforce the generic type provided in a generic class such that it will be able to inherit from a particular interface
10. Using Property as IEnumerable doesn’t make it Read-only
When an IEnumerable property gets exposed in a created class
This code modifies the list and gives it a new name. In order to avoid this, add AsReadOnly as opposed to AsEnumerable.
11. Data Type Conversion
More often than not, developers have to alter data types for different reasons. For example, converting a set value decimal variable to an int or Integer
Source: https://freelancer.com/community/...2 -
I spent 2-3 days on debugging code written in assembly script. Apparently, you need to initialise an array using new method otherwise it re-uses the previous array from the same scope and it has created infinitely large array. Just wtf.
And I got error like "wasm blah blah blah blah blah blah".Just give proper error.
Running the environment locally wasn't an option because well it doesn't fucking work locally. So, I have to forcibly test on CI and they have created a site that can show you logs because you can't access or query data directly from server and while debugging you try to log something it randomly works sometimes and sometimes you get output from god knows which deployment. Just create a fucking API for displaying log or build a proper docker so that we test it locally.1 -
So for the past two days I had to deal with a problem where I have to do a nested query with sequelize, pretty straight forward reading the documentation, or that was I think. I implemented everything according to the docs but the query stills fails, why ? I had no idea, I double check my implementation, I googled the error, no luck, after a day searching like crazy I talked with the backend lead about this and he help me to realize that the naming convention was changing because sequelize is creating a nested (SELECT * FROM) because one of the relations has a one-to-many realtion with the root model and I'm why the heck is doing that? But we both didn't know, and the problem was solved by just modifying the names, so we let it through, and sent it to QA. The next day I see the task rejected by QA and the reason was after the changes were merged another part of the app was broken, ok np, I'll fix it right away, and oh God I found the error was caused by another query that was including the first query we fix yesterday ! It was a nested query with 3 lvls! And the names became even more complex ( like `model1->model2.colum1`), goddamit, ok, I spent most of the day searching again, nothing, read the specification of the findAll function, nope, tried to put that name in the ON clause as the docs suggested, still an error, shit, then the lead helps me again and creates a literal which can hold that name and voila! Everything is happiness, at least for that moment, but I was still curious about this behavior, so I keep digging on it and I've just found an issue where a great guy posted an option to the findAll method that is not documented in any version of sequelize ! WTF ! And this option was "subQuery" which if you set it to false it won't create that additional (SELECT * FROM) from before, FUUUCK! I can't believe it, I know that all the effort works in my favor because I learn more about sequelize, but FFS I'm still angry because this shit shouldn't happen, you need to update the god damn docs, it's just adding a row and telling the people what it does. Well to end this, after putting that in the query and replacing all the workarounds with the expected syntaxis everything works like charm.1
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I need to write a standalone server in Java 1.7 and have it
-handle GET urls and map them to different classes/methods
-extract the query params and expose them to the method
-Can respond in JSON by serialising the POJO or a list of them
We have an existing server I think that uses JBoss but takes forever to start and uses a lot of memory.
I also wrote one before with just a (Grizzly?) HttpServer so had to manually implement the above as needed. Only needed it to do one thing so really just 1 path.
Similar situation this time but I'd prefer to not have to implement this stuff manually and need it to be a bit more flexible to extension.7 -
Relatively often the OpenLDAP server (slapd) behaves a bit strange.
While it is little bit slow (I didn't do a benchmark but Active Directory seemed to be a bit faster but has other quirks is Windows only) with a small amount of users it's fine. slapd is the reference implementation of the LDAP protocol and I didn't expect it to be much better.
Some years ago slapd migrated to a different configuration style - instead of a configuration file and a required restart after every change made, it now uses an additional database for "live" configuration which also allows the deployment of multiple servers with the same configuration (I guess this is nice for larger setups). Many documentations online do not reflect the new configuration and so using the new configuration style requires some knowledge of LDAP itself.
It is possible to revert to the old file based method but the possibility might be removed by any future version - and restarts may take a little bit longer. So I guess, don't do that?
To access the configuration over the network (only using the command line on the server to edit the configuration is sometimes a bit... annoying) an additional internal user has to be created in the configuration database (while working on the local machine as root you are authenticated over a unix domain socket). I mean, I had to creat an administration user during the installation of the service but apparently this only for the main database...
The password in the configuration can be hashed as usual - but strangely it does only accept hashes of some passwords (a hashed version of "123456" is accepted but not hashes of different password, I mean what the...?) so I have to use a single plaintext password... (secure password hashing works for normal user and normal admin accounts).
But even worse are the default logging options: By default (atleast on Debian) the log level is set to DEBUG. Additionally if slapd detects optimization opportunities it writes them to the logs - at least once per connection, if not per query. Together with an application that did alot of connections and queries (this was not intendet and got fixed later) THIS RESULTED IN 32 GB LOG FILES IN ≤ 24 HOURS! - enough to fill up the disk and to crash other services (lessons learned: add more monitoring, monitoring, and monitoring and /var/log should be an extra partition). I mean logging optimization hints is certainly nice - it runs faster now (again, I did not do any benchmarks) - but ther verbosity was way too high.
The worst parts are the error messages: When entering a query string with a syntax errors, slapd returns the error code 80 without any additional text - the documentation reveals SO MUCH BETTER meaning: "other error", THIS IS SO HELPFULL... In the end I was able to find the reason why the input was rejected but in my experience the most error messages are little bit more precise.2 -
Fucking Quarkus. Fucking Panache. Fucking ORM.
I wanted to do a fucking simple projection. First this piece of fuck, the Panache, won't let me do a Projection because of a fucking bug, that haven't implemented it properly until 2.12 (fuck and you call this v2?). Ok, upgraded, to the latest 2.16, cuz why the fuck, i'm upgrading already. But now the whole fucking quarkus app won't start! Noice! Ok, fuck it, let's go down exactly to 2.12. Quarkus started, perfect. But now, this pice of fuck Hibernate says 'collection was evicted' whenever i tried to read a collection in the setter (Access.PROPERTY), which worked just fucking fine before. But okay, fuck you. I'll write a @PostLoad method, fine, just fuck off.
But that's not the end! Now it says I cannot write `select parent.someColl is not null and parent.collection is empty as canProcess` because "is empty" only supported in where clauses. What fucking wonderful system! Well, fuck you. I'll write a union query. But guess what! JPA standard does not support union queries, nor HQL (Eclipse Link does, btw). Ok, fuck this shit, let's write a native query. But hey, fucking Panache does not support that. There is no fucking place in their fucking docs stating anything about how to use native queries.
So, fuck you quarkus, fuck you panache, fuck you hibernate, fuck you overcomplicated limiting bullshit called full-fledged ORMs. I'm moving to a fucking mybatis and fuck it. It's simple as fuck, does not fucking restrict me in writing whatever shit query I want to write and let's me map the shit just fine.1 -
“Just a quick fix” Classic start to a reported ticket. Ticket states that a form field was not doing anything.
Think to myself ok this sounds like a nice easy one for the morning. A few hours later I find something like the following written by a senior member of the dev team.
SearchClass {
//...list of getter and setters
Private $snakeCaseName;
SearchFunction() {
Foreach($this as $property => $value){
//... if property keys = string for each object property then do code
If($property == “snakecaseProperty”){
//...do stuff
}
}
}
}
Why does this loop exist!!!!! All it does is remove any error checking if a getter method is misspelt...
To make matters worse the entire search method was over 300 lines building a MySQL query string.... even though there was an ORM and entity classes available!!!2 -
Here is the REST API design of my LEAD programmer
# Access the API
1. Get access token with out username and password (GET /token)
2. Sign in with username, password and add access token as query param (POST /user/auth?token=[access_token]
3. Call other resources by adding token as query param
# Create new objects
- He uses PUT method in every resources to create new objects4