defndaines
Web Development with Clojure, Third Edition: Which jdbc (14)
I’ve stumbled on running the guestbook tests on pages 14–15, and realize there’s a mismatch between the book and the default generated code.
Having recently run lein new luminus guestbook, the require statement by default in test/clj/guestbook/db/core_test.clj has the require as
[next.jdbc :as jdbc]
This failed when I tried to run tests because of
Syntax error compiling at (guestbook/db/core_test.clj:21:3).
No such var: jdbc/with-db-transaction
Spotting that the text currently (B16) has the require as
[clojure.java.jdbc :as jdbc]
I changed it, but this leads to failures
ERROR in (messages-test) (core_deftype.clj:583)
Uncaught exception, not in assertion.
expected: nil
actual: java.lang.IllegalArgumentException: No implementation of method: :get-level of protocol: #'clojure.java.jdbc/Connectable found for class: com.zaxxer.hikari.HikariDataSource
I haven’t fiddled with it any more than that, but it does suggest that the latest luminus may have made changes to next.jdbc, causing some mismatches with the text.
I should note that in the REPL I am able to call save-message! and get-messages just fine.
Most Liked
defndaines
The solution which uses next.jdbc is:
(deftest messages-test
(jdbc/with-transaction [t-conn *db* {:rollback-only true}]
(is (= 1 (db/save-message!
1
Popular Pragmatic Bookshelf topics
Running the examples in chapter 5 c under pytest 5.4.1 causes an AttributeError: ‘module’ object has no attribute ‘config’.
In particula...
New
Title: Web Development with Clojure, Third Edition - migrations/create not working: p159
When I execute the command:
user=> (create-...
New
This isn’t directly about the book contents so maybe not the right forum…but in some of the code apps (e.g. turbo/06) it sends a TURBO_ST...
New
When trying to generate the protobuf .go file, I receive this error:
Unknown flag: --go_opt
libprotoc 3.12.3
MacOS 11.3.1
Googling ...
New
I’m new to Rust and am using this book to learn more as well as to feed my interest in game dev. I’ve just finished the flappy dragon exa...
New
@noelrappin
Running the webpack dev server, I receive the following warning:
ERROR in tsconfig.json
TS18003: No inputs were found in c...
New
Hi, I have just acquired Michael Fazio’s “Kotlin and Android Development” to learn about game programming for Android. I have a game in p...
New
When installing Cards as an editable package, I get the following error:
ERROR: File “setup.py” not found. Directory cannot be installe...
New
When trying to run tox in parallel as explained on page 151, I got the following error:
tox: error: argument -p/–parallel: expected one...
New
Title: Agile Web Development with Rails 7: (page 70)
I am running windows 11 pro with rails 7.0.3 and ruby 3.1.2p20 (2022-04-12 revision...
New
Other popular topics
Ruby, Io, Prolog, Scala, Erlang, Clojure, Haskell. With Seven Languages in Seven Weeks, by Bruce A. Tate, you’ll go beyond the syntax—and...
New
poll
poll
Be sure to check out @Dusty’s article posted here: An Introduction to Alternative Keyboard Layouts It’s one of the best write-...
New
Do the test and post your score :nerd_face:
:keyboard:
If possible, please add info such as the keyboard you’re using, the layout (Qw...
New
The V Programming Language
Simple language for building maintainable programs
V is already mentioned couple of times in the forum, but I...
New
Hi folks,
I don’t know if I saw this here but, here’s a new programming language, called Roc
Reminds me a bit of Elm and thus Haskell. ...
New
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...
New
Will Swifties’ war on AI fakes spark a deepfake porn reckoning?
New
Develop, deploy, and debug BEAM applications using BEAMOps: a new paradigm that focuses on scalability, fault tolerance, and owning each ...
New
This is a very quick guide, you just need to:
Download LM Studio: https://lmstudio.ai/
Click on search
Type DeepSeek, then select the o...
New
Fight complexity and reclaim the original spirit of agility by learning to simplify how you develop software. The result: a more humane a...
New
Categories:
Sub Categories:
Popular Portals
- /elixir
- /rust
- /ruby
- /wasm
- /erlang
- /phoenix
- /keyboards
- /python
- /js
- /rails
- /security
- /go
- /swift
- /vim
- /clojure
- /emacs
- /haskell
- /java
- /svelte
- /onivim
- /typescript
- /kotlin
- /crystal
- /c-plus-plus
- /tailwind
- /react
- /gleam
- /ocaml
- /flutter
- /elm
- /vscode
- /ash
- /opensuse
- /html
- /centos
- /php
- /zig
- /deepseek
- /scala
- /textmate
- /sublime-text
- /lisp
- /react-native
- /debian
- /nixos
- /agda
- /kubuntu
- /arch-linux
- /deno
- /django
- /revery
- /nodejs
- /ubuntu
- /spring
- /manjaro
- /diversity
- /lua
- /julia
- /markdown
- /c








