Backend>Blogs/Talks

How to report Postgres custom errors in Ecto Changeset

quetz

quetz

How to report Postgres custom errors in Ecto Changeset

Capture a Postgres (or any other RDBMS) custom error in the Ecto.Changeset without raising an exception.

This enables you to handle all the errors in one place without braking your aesthetic Elixir functional code with “try/rescue” constructs.

View thread on forum
/elixir#blog-post#ecto
1 196 0

Where Next?

View thread on forum
elixir
blog-post
ecto
Home Backend>Blogs/Talks
/elixir#blog-post#ecto
1 196 0
Last post

Popular Backend topics Top

First poster: bot
Backend>Blogs/Talks

Where (and how) you limit your concurrency in Go can matter
utcc.utoronto.ca
/go
0 1576 0
New
First poster: wolf4earth
Backend>Blogs/Talks

Understanding Partial Moves in Rust
Understanding Partial Moves in Rust. Partial moves are an interesting but often misunderstood feature of Rust. However, with the right ...
whileydave.com
/rust
8 1614 4
New
paulanthonywilson
Backend>Blogs/Talks

Blog on Content Security Policy configuration (in Phoenix with LiveView)
I had a bit of a mini-adventure following Sobelow’s advice on adding a CSP to a Phoenix App. If you want to follow along, or want to add ...
furlough.merecomplexities.com
/elixir/phoenix#blog-post/security
3 1860 0
New
paulanthonywilson
Backend>Blogs/Talks

Test Driving OTP - creating a registry with expiring entries
Following up on the previous post on using UDP multicasting to broadcast and detect peers on a network, I create a registry of those peer...
furlough.merecomplexities.com
/elixir#otp#test-driven
2 2024 0
New
CommunityNews
Backend>Blogs/Talks

Clojure by Example (2015)
I don’t like reading thick O’Reilly books when I start learning new programming languages. Rather, I like starting by writing small and d...
kimh.github.io
/clojure
7 1527 1
New
AstonJ
Backend>Blogs/Talks

Euruko Keynote: Beyond Ruby 3.0 (Yukihiro Matsumoto)
Includes talk about concurrency and performance topics:
youtube.com
/ruby
62 2393 23
New
AstonJ
Backend>Blogs/Talks

This is the Future of Webdev. Crazy, Right?
This was posted on the Elixir Forum and thought it was worth sharing here! I love how the excitement of the author shines through and I ...
suzdalnitski.medium.com
#elixr
12 1328 4
New
First poster: AstonJ
Backend>Blogs/Talks

Ruby Structs
Ruby’s Struct is one of several powerful core classes which is often overlooked and under utilized compared to the more popular Hash clas...
alchemists.io
/ruby
20 1993 13
New
Johannes-Werbrouck
Backend>Blogs/Talks

User Levels, Enums and Policies, oh My!
In this blog post over on Fly.io I take a look at PHP 8.1’s new Enum class, and show you how it can be used to set up a level structure f...
fly.io
/php/laravel#blog-post
3 1215 1
New
mudasobwa
Backend>Blogs/Talks

Long-lived Process and State Recovery After Crashes
Peeper is the tiny library to preserve state across GenServer crashes/restarts. Works as an almost drop-in substitute for GenServer, sui...
rocket-science.ru
/elixir#blog-post#opensource
3 964 0
New

Other popular topics Top

Devtalk
General Dev>Dev Chat

What dev-related stuff have you been up to?
Reading something? Working on something? Planning something? Changing jobs even!? If you’re up for sharing, please let us know what you’...
#community
1063 24245 395
New
PragmaticBookshelf
General Dev>Learning Resources

Forge Your Future with Open Source
Free and open source software is the default choice for the technologies that run our world, and it’s built and maintained by people like...
pragprog.com
#pragprog#published-book/book-forge-your-future-with-open-source
3 5654 0
New
dasdom
General Dev>Dev Chat

Standing Desks
No chair. I have a standing desk. This post was split into a dedicated thread from our thread about chairs :slight_smile:
#workspace#opinions
177 9886 77
New
DevotionGeo
Backend>Questions

Can someone explain the -t option/flag in docker run command?
I know that -t flag is used along with -i flag for getting an interactive shell. But I cannot digest what the man page for docker run com...
#docker
7 10261 2
New
AstonJ
Backend>Questions

Erlang's not installing on macOS Big Sur "You are natively building Erlang/OTP for a later version of MacOSX than current version"
Just done a fresh install of macOS Big Sur and on installing Erlang I am getting: asdf install erlang 23.1.2 Configure failed. checking ...
#macos/erlang#big-sur#asdf
10 6212 8
New
AstonJ
General Dev>Code Editors

Doom-Emacs: Can't find emacs in your PATH
If you get Can't find emacs in your PATH when trying to install Doom Emacs on your Mac you… just… need to install Emacs first! :lol: bre...
#macos/emacs#doom-emacs
4 5837 0
New
AstonJ
macOS>Chat

How to block any website on Mac using Little Snitch
If you want a quick and easy way to block any website on your Mac using Little Snitch simply… File > New Rule: And select Deny, O...
#macos#how-to#littlesnitch
5 11227 3
New
CommunityNews
General Dev>In The News

X can’t stop spread of explicit, fake AI Taylor Swift images
Will Swifties’ war on AI fakes spark a deepfake porn reckoning?
arstechnica.com
/swift
0 8379 0
New
sir.laksmana_wenk
Game Dev>Questions

I want to learn how make a game, but where should I start?
I’m able to do the “artistic” part of game-development; character designing/modeling, music, environment modeling, etc. However, I don’t...
#game-dev
15 4965 9
New
pragdave
AI>Learning Resources

A Common-Sense Guide to AI Engineering
Build robust LLM-powered apps, chatbots, and agents while mastering AI engineering principles that will help you outlast the tools and th...
pragprog.com
#pragprog
17 1852 8
New
Back to top

Sponsor Spotlight

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Latest in Elixir

Elixir Portal ❯

Backend>Blogs/Talks

Backend Blogs/Talks ❯

Latest on Devtalk

Devtalk ❯

We ❤️ helpful members!

We reward our most helpful members via our MOTM scheme - by giving away a whopping 25 books per year!

Member of the Month

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

EEF

Supporting innovation across the BEAM ecosystem.

coders51

We build reliable cloud platforms for business-critical systems.

Manning Publications

Develop your skills with books, videos, and courses.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that move you from confusion to "Aha, now I get it!"

Linux New Media

Publishing Linux Magazine, ADMIN, and MakerSpace for 25+ years.

View all our sponsors ❯

Categories:

Sub Categories:

Popular Portals

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

EEF

Supporting innovation across the BEAM ecosystem.

coders51

We build reliable cloud platforms for business-critical systems.

Manning Publications

Develop your skills with books, videos, and courses.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that move you from confusion to "Aha, now I get it!"

Linux New Media

Publishing Linux Magazine, ADMIN, and MakerSpace for 25+ years.

View all our sponsors ❯

We're in Beta

About us Mission Statement See our Roadmap