
RobOldCodes
Modern Front-End Development for Rails: B7 running the example app fails( page xv)
Page xv invites us to run the example app with rails s
. I get this error:
Showing <APP_DIR>/turbo/01/app/views/concerts/_schedule_concert.html.erb where line #37 raised:
undefined method `favorite' for nil:NilClass
It seems current_user
is undefined.
Marked As Solved

noelrappin
Author of Modern Front-End Development for Rails
There is definitely some code in there that needs a logged in user and should be cleaned up for the next beta. This should be fixed if you log in (going directly to http://localhost:3000/users/sign_in if you need to, the seeded users are in the seeds.rb file, I think you can use areader@example.com
with awesome
.
Popular Pragmatic topics

When I try the command to create a pair of migration files I get an error.
user=> (create-migration "guestbook")
Execution error (Ill...
New

First, the code resources:
Page 237: rumbl_umbrella/apps/rumbl/mix.exs
Note: That this file is missing.
Page 238: rumbl_umbrella/app...
New

The book has the same “Problem space/Solution space” diagram on page 18 as is on page 17. The correct Problem/Solution space diagrams ar...
New

When I run the coverage example to report on missing lines, I get:
pytest --cov=cards --report=term-missing ch7
ERROR: usage: pytest [op...
New

When running tox for the first time, I got the following error:
ERROR: InterpreterNotFound: python3.10
I realised that I was running ...
New

It seems the second code snippet is missing the code to set the current_user:
current_user: Accounts.get_user_by_session_token(session["...
New

Modern front-end development for Rails, second edition - Struggling to get the first chapter to work
After running /bin/setup, the first error was: The foreman' command exists in these Ruby versions: That was easy to fix: gem install fore...
New

I got this error when executing the plot files on macOS Ventura 13.0.1 with Python 3.10.8 and matplotlib 3.6.1:
programming_ML/code/03_...
New

Hello faithful readers! If you have tried to follow along in the book, you are asked to start up the dev environment via dx/build and ar...
New

From page 13:
On Python 3.7, you can install the libraries with pip by running these commands inside a Python venv using Visual Studio ...
New
Other popular topics

Reading something? Working on something? Planning something? Changing jobs even!?
If you’re up for sharing, please let us know what you’...
New

New

My first contact with Erlang was about 2 years ago when I used RabbitMQ, which is written in Erlang, for my job. This made me curious and...
New

Here’s our thread for the Keyboardio Atreus. It is a mechanical keyboard based on and a slight update of the original Atreus (Keyboardio ...
New

On modern versions of macOS, you simply can’t power on your computer, launch a text editor or eBook reader, and write or read, without a ...
New

“Finding the Boundaries” Hero’s Journey with Noel Rappin @noelrappin
Even when you’re ultimately right about what the future ho...
New

Oh just spent so much time on this to discover now that RancherOS is in end of life but Rancher is refusing to mark the Github repo as su...
New

zig/http.zig at 7cf2cbb33ef34c1d211135f56d30fe23b6cacd42 · ziglang/zig.
General-purpose programming language and toolchain for maintaini...
New

Will Swifties’ war on AI fakes spark a deepfake porn reckoning?
New

If you’re getting errors like this:
psql: error: connection to server on socket “/tmp/.s.PGSQL.5432” failed: No such file or directory ...
New
Latest in PragProg
Latest (all)
Categories:
Popular Portals
- /elixir
- /rust
- /wasm
- /ruby
- /erlang
- /phoenix
- /keyboards
- /js
- /rails
- /python
- /security
- /go
- /swift
- /vim
- /clojure
- /java
- /haskell
- /emacs
- /svelte
- /onivim
- /typescript
- /crystal
- /c-plus-plus
- /tailwind
- /kotlin
- /gleam
- /react
- /flutter
- /elm
- /ocaml
- /vscode
- /opensuse
- /ash
- /centos
- /php
- /deepseek
- /zig
- /scala
- /html
- /debian
- /nixos
- /lisp
- /agda
- /sublime-text
- /react-native
- /textmate
- /kubuntu
- /arch-linux
- /revery
- /ubuntu
- /manjaro
- /spring
- /django
- /diversity
- /nodejs
- /lua
- /c
- /slackware
- /julia
- /neovim