DestyNova
Book-programming-phoenix-liveview:b0.14-errata-p1-131
- p2:
we update a yet another element. Delete "a ". - p11:
you might seeing– s/seeing/see/ - p12:
<imagedata fileref=”images/intro/phoenix-new.png… this fileref seems to be missing a closing double-quote, which breaks the parser and doesn’t insert the image. - p21: The code block in “Handle Events” doesn’t quite match the previous definition, in a trivial way (
{n}vs<%= n %>) - p25:
you should see the actual data that’s sent up to the browser when the user clicks a number– this is worded confusingly. That data is what’s sent //from// the browser to the server when the user clicks a number. - p27:
the time/0 was not re-invoked→the time/0 function - p47:
The :fetch_current_scope_for_user plug runs early in the browser pipeline,– the generator now adds it automatically as the last plug in the browser pipeline. - p48:
Instead of looking up users by tokens in each LiveView, the scope is automatically available:– it’s not though, since we haven’t specified that/wrongrequires an authenticated user in the router yet, so trying to addcurrent_userhere breaks the liveview. Is this just an example rather than a change we should make while following along? - p52:
confirm_user/1– this no longer seems to exist in theAccountsexports, as of Phoenix 1.8.1. - p58:
plug(:put_root_layout,– this appears twice in the snippet, but with Phoenix 1.8.1 it only shows up once, in the browser pipeline. - p70:
we can simplify the WrongLive’s own mount function, so that it looks like this:– this seems to be the exact same definition we had on page 67. - p72:
If a logged in user visits the / route, make them redirect to the /guess route.- It was not obvious how to do this. I searched for a
redirectfunction to use inrouter.ex, but couldn’t find one. The closest wasforwardwhich didn’t seem appropriate. - Instead, I tried adding a second function to
PageController, and referencing that instead of:homein theredirect_if_user_is_authenticatedroute block. It would be good to have some “here’s how you could have done it” sections after the exercises.
- It was not obvious how to do this. I searched for a
- p80:
Notice the significant improvements in Phoenix 1.8’s generator output.– improvements compared to what? In a book written for Phoenix 1.8, it’s likely that almost no readers will remember what the generator output of older versions of Phoenix would look like. - p89:
The Ecto.Changeset.cast/4 function filters the user data we pass into params.–s/params/attrs - p93:
Notice that each of them use the Repo module,=>s/use/uses - p100:
Whenever Catalog.validate_code/1 fails to return the :ok tuple, our code will blow up.– It’sValidator.validate_code/1that can blow our code up this way.Catalog.validate_code/1tries to pattern match on this result, and will throw an error. It never returns an{:ok, ...}tuple toapply_coupon_code/2. - p116:
With just a hand full=>handful - p131:
This tell LiveView–s/tell/tells
Popular Pragmatic Bookshelf topics
page 37
ANTLRInputStream input = new ANTLRInputStream(is);
as of ANTLR 4 .8 should be:
CharStream stream = CharStreams.fromStream(i...
New
Python Testing With Pytest - Chapter 2, warnings for “unregistered custom marks”
While running the smoke tests in Chapter 2, I get these...
New
Working through the steps (checking that the Info,plist matches exactly), run the demo game and what appears is grey but does not fill th...
New
I can’t setup the Rails source code. This happens in a working directory containing multiple (postgres) Rails apps.
With:
ruby-3.0.0
s...
New
The generated iex result below should list products instead of product for the metadata. (page 67)
iex> product = %Product{}
%Pento....
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
Title: Intuitive Python: docker run… denied error (page 2)
Attempted to run the docker command in both CLI and Powershell
PS C:\Users\r...
New
Dear Sophie.
I tried to do the “Authorization” exercise and have two questions:
When trying to plug in an email-service, I found the ...
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
Getting an error when installing the dependencies at the start of this chapter:
could not compile dependency :exla, "mix compile" failed...
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
Stop developing web apps with yesterday’s tools. Today, developers are increasingly adopting Clojure as a web-development platform. See f...
New
There’s a whole world of custom keycaps out there that I didn’t know existed!
Check out all of our Keycaps threads here:
https://forum....
New
Rust is an exciting new programming language combining the power of C with memory safety, fearless concurrency, and productivity boosters...
New
Rails 7 completely redefines what it means to produce fantastic user experiences and provides a way to achieve all the benefits of single...
New
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...
New
Will Swifties’ war on AI fakes spark a deepfake porn reckoning?
New
Build modern server-driven web applications using htmx. Whatever programming language you use, you’ll write less (and cleaner) code.
...
New
Get the comprehensive, insider information you need for Rails 8 with the new edition of this award-winning classic.
Sam Ruby @rubys
...
New
Ok, well here are some thoughts and opinions on some of the ergonomic keyboards I have, I guess like mini review of each that I use enoug...
New
Categories:
Sub Categories:
Popular Portals
- /elixir
- /rust
- /wasm
- /ruby
- /erlang
- /phoenix
- /keyboards
- /python
- /js
- /rails
- /security
- /go
- /swift
- /vim
- /clojure
- /java
- /emacs
- /haskell
- /typescript
- /svelte
- /onivim
- /kotlin
- /c-plus-plus
- /crystal
- /tailwind
- /react
- /gleam
- /ocaml
- /vscode
- /flutter
- /elm
- /ash
- /html
- /deepseek
- /opensuse
- /zig
- /centos
- /php
- /scala
- /react-native
- /lisp
- /textmate
- /sublime-text
- /nixos
- /debian
- /agda
- /deno
- /django
- /kubuntu
- /arch-linux
- /nodejs
- /ubuntu
- /spring
- /revery
- /manjaro
- /lua
- /diversity
- /julia
- /markdown
- /laravel
Devtalk Sponsors
Practical resources that improve the lives of professional developers.
We build trusted fault-tolerant systems that scale to billions of users.
Real-time error tracking, performance insights, and observability for devs.
Supporting innovation across the BEAM ecosystem.
We build reliable cloud platforms for business-critical systems.
Develop your skills with books, videos, and courses.
Catch errors, track performance, monitor hosts and more.
Enabling companies to succeed by building software people love.
Courses that move you from confusion to "Aha, now I get it!"
Publishing Linux Magazine, ADMIN, and MakerSpace for 25+ years.