mert

mert

Agile Web Development with Rails 7: page 152, page 153:

AWDWR 7, page 152, page 153:

Hello everyone,

I’m a little bit lost on the hotwire part. I didn’t fully understand it.

On page 152 @rubys does the hotwire in one way. Then on page 153 he creates creatre.turbo_stream.erb and add 2 turbo_stream.replace .... I understand he is showing 2 ways of doing it. However I feel like I got confused. This is a chapter I have to read multiple times.

Can someone explain more about this sentence on page 152: “Since we followed the default
naming conventions for the template, we don’t need to pass any arguments”. I know in rails we use a lot of conventions but this went over my head.

On page 153 I got lost at this line: format.turbo_stream { @current_item = @line_item }, Where did @current_item came from, where do we really use it? We don’t use it at our 2 turbo_stream replace ...

Mert

Marked As Solved

rubys

rubys

Author of Agile Web Development With Rails

On page 152 @rubys does the hotwire in one way. Then on page 153 he creates creatre.turbo_stream.erb and add 2 turbo_stream.replace .... I understand he is showing 2 ways of doing it. However I feel like I got confused. This is a chapter I have to read multiple times.

You are correct that I am showing two different ways of constructing a response. I would welcome any suggestions as to how this could be improved.

Can someone explain more about this sentence on page 152: “Since we followed the default naming conventions for the template, we don’t need to pass any arguments”. I know in rails we use a lot of conventions but this went over my head.

What I meant by that is that we don’t need to specify any arguments to render, so in fact no calls to render are required. Compare this code with what it replaced to see what I mean:

          render turbo_stream: turbo_stream.replace(
            :cart,
            partial: 'layouts/cart',
            locals: { cart: @cart }
          )

I’ll rework this paragraph.

On page 153 I got lost at this line: format.turbo_stream { @current_item = @line_item }, Where did @current_item came from, where do we really use it? We don’t use it at our 2 turbo_stream replace ...

It will be used by the rendering of the cart, which is done here:

<%= render partial: 'layouts/cart', locals: {cart: @cart} %>

I’ll add a sentence or two to explain why we are setting this value.

Where Next?

Popular Pragmatic Bookshelf topics Top

jon
Some minor things in the paper edition that says “3 2020” on the title page verso, not mentioned in the book’s errata online: p. 186 But...
New
telemachus
Python Testing With Pytest - Chapter 2, warnings for “unregistered custom marks” While running the smoke tests in Chapter 2, I get these...
New
GilWright
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
edruder
I thought that there might be interest in using the book with Rails 6.1 and Ruby 2.7.2. I’ll note what I needed to do differently here. ...
New
raul
Hi Travis! Thank you for the cool book! :slight_smile: I made a list of issues and thought I could post them chapter by chapter. I’m rev...
New
joepstender
The generated iex result below should list products instead of product for the metadata. (page 67) iex&gt; product = %Product{} %Pento....
New
cro
I am working on the “Your Turn” for chapter one and building out the restart button talked about on page 27. It recommends looking into ...
New
gilesdotcodes
In case this helps anyone, I’ve had issues setting up the rails source code. Here were the solutions: In Gemfile, change gem 'rails' t...
New
andreheijstek
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
gorkaio
root_layout: {PentoWeb.LayoutView, :root}, This results in the following following error: no “root” html template defined for PentoWeb...
New

Other popular topics Top

AstonJ
If it’s a mechanical keyboard, which switches do you have? Would you recommend it? Why? What will your next keyboard be? Pics always w...
New
AstonJ
Or looking forward to? :nerd_face:
New
Exadra37
Please tell us what is your preferred monitor setup for programming(not gaming) and why you have chosen it. Does your monitor have eye p...
New
DevotionGeo
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...
New
AstonJ
Curious to know which languages and frameworks you’re all thinking about learning next :upside_down_face: Perhaps if there’s enough peop...
New
AstonJ
We have a thread about the keyboards we have, but what about nice keyboards we come across that we want? If you have seen any that look n...
New
mafinar
Crystal recently reached version 1. I had been following it for awhile but never got to really learn it. Most languages I picked up out o...
New
AstonJ
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
DevotionGeo
I have always used antique keyboards like Cherry MX 1800 or Cherry MX 8100 and almost always have modified the switches in some way, like...
New
AstonJ
Curious what kind of results others are getting, I think actually prefer the 7B model to the 32B model, not only is it faster but the qua...
New

Latest in Agile Web Development with Rails 7

Agile Web Development with Rails 7 Portal

Sub Categories: