The various techniques used for maintaining stable program state in circumstances that, if not taken care of ("handled"), could cause serious issues, including logical bugs and abrupt execution termination.
3
votes
0answers
31 views
Avoiding a call to CommandBarControl.Picture
Earlier today, I encountered an Access Violation error when opening the VBE for SolidWorks 2006, while Rubberduck VBA was initializing.
I traced the Access Violation back to an attempt to set the ...
1
vote
0answers
17 views
Functional-style Cocoa XML serializer and object mapper
I'm working on an XML-to-model-object serialization and deserialization library. There are three main design goals for the code:
It should parse XML into and serialize from Cocoa-native collection ...
3
votes
1answer
27 views
Class of file uploading to S3 using boto with multipart supported
I'm writing an app by Flask with a feature to upload large file to S3 and made a class to handle this.
I have some targets in writing code:
Code must be easy to understand and maintain. (Yes, ...
0
votes
2answers
249 views
Check existence of item in collection [closed]
Checking whether an item exist in a collection isn't straightforward in VBA, it requires error checking and during error handling we need to clear the error and also resume code to be able to ...
0
votes
1answer
51 views
SQL message logger run loop
I am learning Java by reading source code of other authors. This Java method handles communication with SQL database. While the code does work several things concern me. For instance the ...
6
votes
3answers
65 views
Parsing excel cells containing line feed characters
This is a direct follow up to Parsing cells containing Line Feed Characters.
Link to sanitized xls on dropbox if test data is needed
Essentially the reports I work with aren't bad -
The issue ...
9
votes
6answers
1k views
Validation that also returns error messages
My Create, Update and Delete methods should return a ...
4
votes
1answer
38 views
Takes function and throws exception if passed function doesn't throw an exception
The code below is part of a toy test assertion library I've written.
I'm looking for feedback specifically on lines 4 - 9. I'd like to extract them from the ...
0
votes
0answers
22 views
ResponseEntity<Error> bad design
We have implemented this pojo to use in the org.springframework.http.ResponseEntity.
...
3
votes
1answer
54 views
Command sequence executor with error handling
I've recently learned that as a Java developer my methods throw exceptions way too often, even when the reason for throwing is related to a business rule, when returning an error code instead could ...
1
vote
1answer
32 views
Parsing latitude and longitude, using Try[T] to ignore errors
I wrote this question asking about how to implement my error handling while still maintaining functional code and based on 200_success's very interesting note on the spaces, I decided to ...
2
votes
2answers
28 views
Memoizing decorator with retries - now with backoff added! (Part 3)
A continuation of Memoizing decorator with retries, part 2, and related to http://codereview.stackexchange.com/a/133493/47529. I liked my decorator before, but especially in my original use case of a ...
2
votes
1answer
26 views
Stored procedure to swap account holders
I'm doing an exercise, and would like to know if what I'm doing is correct and follows the correct structure for rollback in case a transaction fails. I would like to know as well if my ...
2
votes
1answer
35 views
Elixir / Phoenix login controller, allowing multiple attempts
I have a login method in my controller. I would like to get rid of the imperative "thinking" and write something more functional.
...
8
votes
5answers
289 views
Custom list to avoid out of memory exceptions
The following class is a helper to avoid OutOfMemoryException exceptions being thrown when the list is to large so that it is added onto the large objects heap. To ...
3
votes
1answer
74 views
6
votes
3answers
68 views
Four versions of a database-creation function with different error handling
I'm starting a new, small C project and would like to have the safest, cleanest and shortest error handling code possible.
Here is a comparison of different ways to handle errors in the same C ...
5
votes
3answers
81 views
Memoizing decorator with retries, part 2
A while ago I asked this question Memoizing decorator that can retry and then promptly forgot about it. I more recently saw Python decorator for retrying w/exponential backoff and wanted to add ...
4
votes
2answers
39 views
Error-checking macro to jump to specified label given a failing statement
I'm starting a new C projet and I want to have the cleanest and shortest error checking code possible.
To that aim, I often use two things :
functions return 0,...
2
votes
1answer
76 views
Python decorator for retrying w/exponential backoff
This is my first decorator in Python! I found some of it on the internet but have tweaked it to our needs.
Here is the couple concerns of mine:
Multiple python version compatibility
Is grabbing ...
10
votes
3answers
105 views
Userform for getting data from data sheet into a table
I am making a userform that grabs data from a data sheet and puts it into a table:
Grabs the data based on what the user wants (Brand -> Items for brand)
Allows multiple items to be added
Displays ...
1
vote
0answers
20 views
Express middleware to handle errors and send them to Raygun
I signed up for Raygun on Heroku and wrote a middleware in Express to handle the error, however, I am afraid this might block a request from coming through or executing all the way. This article is ...
8
votes
1answer
123 views
Snakes and Letters
This is the "Clean up the words" challenge from CodeEval:
Challenge
Given a list of words mixed with extra symbols. Write a program that will clean up the words from extra numbers and symbols....
-1
votes
1answer
38 views
More error-checking
The purpose of this code is to check for errors in my code for a custom shell.
In a previous answer, they say that my code didn't have error-checking.
You need to check the result of every ...
2
votes
4answers
60 views
Throwing exceptions if there is not exactly one box retrieved
(Note: this is originally posted as this SO question )
I'm trying to refactor the error logging and exception throwing into a method.
Original code:
...
1
vote
1answer
65 views
1
vote
0answers
25 views
0
votes
0answers
84 views
Php Ajax script to check server status of sites from db
I am writing a script for a client so hey can check the status of their servers.
The script performs ajax requests to get the data as json then poulates the table with the returned json results.
is ...
7
votes
1answer
77 views
Class: 2D Variant Array
Note: Yes. It's big. I'm not expecting commensurately
long/detailed answers (though if anyone wants to write one, you'll definitely be receiving a substantial bounty). This class is going to be used ...
4
votes
1answer
114 views
TryRetry - Try, Catch, then Retry
I have created a class to try, catch and retry N times. My class also supports retrying asynchronously. I'm wondering if there are better ways to implement this. I'm most concerned with the ...
1
vote
1answer
31 views
Logging errors in google analytics
Apart from general JavaScript knowledge, this snippets requires someone who knows how to properly use Google Analytics API.
To log errors on my site, I use this code:
...
1
vote
1answer
86 views
Reading files and displaying their content
I'm writing a program to read two files supplied as arguments in the command line, convert them from list to char[][], and display their contents to the user.
I'm trying to practice exception-...
2
votes
1answer
123 views
Getting JSON data from an HTTP response using conditional binding
I am new to Swift and I am trying to use the optional binding feature in as efficient way as possible but I am a bit confused on how to use it (if I can) in this scenario:
...
2
votes
2answers
86 views
Program to edit an address book stored as a JSON file
I was told to come here from Stack Overflow.
I'm trying my hand at an address book and the goal is for it to have a bit more of error prevention, for instance for the key "phone" to have 10 digits, ...
2
votes
1answer
99 views
WebAPI Handling fire and forget exceptions
This is a fire and forget task from within an existing WebAPI service. The code below simply sends a log event (might be that a client has connected to the service to perform some task) to another ...
1
vote
1answer
35 views
Validation of uploading images and adding records to the database
I am doing a php project with the codeigniter framework. In my controller, I have a function that does the following.
Uploads an image to the server
Add a row to the database. The data would be ...
1
vote
1answer
129 views
Implementation of API to create a company account in a database
I'm working on an API that has a lot of controller functions like this:
...
3
votes
1answer
48 views
Varnish - HttpClient Exception Handling
I'm consuming some messages from a rabbit queue. Within the consumer/processor I need to invalidate a varnish cache and requeue the message if the purge failed.
I'm using a local purge proxy.
The ...
1
vote
1answer
28 views
Python exception handling class - Getting as much details printed
I'm trying to write a Exception Handling class in Python so that I can re-use. If you have any ideas on how I can improve this to output more detailed information I would appreciate it:
...
6
votes
2answers
53 views
End of day receipt emailing process
The following functions/routines are an automation of an end of day receipt emailing process that formerly would take up to an hour, but now takes less than a minute.
Things to note: I changed the ...
4
votes
0answers
104 views
Unit Testing Against Exceptions
I am writing a Swift library. I'm writing unit tests for that library.
I am afraid that some of the code that I am testing will possibly throw exceptions. In Swift, we can handle errors, but we can ...
0
votes
1answer
85 views
0
votes
0answers
28 views
Renaming image files based on OCR words
I wanted to rename a large batch of image files, based on a best-guess attempt to OCR words from the file. These are all logos, which generally bear a the name of an organization.
The code presumes ...
3
votes
1answer
55 views
Uploading multiple files using a class
Below I have implemented a class that will validate and upload files based on the specified rules.
...
5
votes
1answer
34 views
Transferring data from one file stream to another
I am currently reading Clean Code and for fun and profit, I intended to refactor some of the Java Tutorials and since I wanted to improve my Exception handling, the Byte Stream one with its lots of ...
4
votes
2answers
109 views
Optimize the CSV Upload function in Ruby On Rails
The code is working fine however, I would like to fix code after unless and can I store thread ID in the database too? Is there a way to improve performance?
...
3
votes
2answers
408 views
Count rows of a table
I am trying to count the rows of two tables generated by SQL connections in Excel VBA. My plan was to use ListObject.DataBodyRange.Rows.Count however, this errors ...
3
votes
0answers
45 views
Easy error handling
I've started using the following Error configuration for some simple libraries I've been working on:
...
1
vote
2answers
118 views
2
votes
1answer
42 views
Simplified error handling when reading from stdin and parsing to a type
I've recently started learning Rust, and I've managed to whip up this function, which reads and parses a thing from stdin. I don't like it though, and I feel it ...
