guidotripaldi

guidotripaldi

Exploring Graphs with Elixir: wrong id in triple (page 126)

Exploring Graphs with Elixir by @tonyhammond

According to the shorten form sample at the beginning of the page, the id in the long form should be “pragprog”, instead of “pragmatic”

The basic folded pattern shows a subject followed by a set of property/object
pairs. If we were to write this out in long form with each statement written as
subject/property/object (and with namespace prefixes substituted) we would
arrive at classic RDF triples:

# Error:
# <https://pragprog.com/> <https://example/id> "pragmatic" .

# Correction:
<https://pragprog.com/> <https://example/id> "pragprog" .

<https://pragprog.com/> <https://example/iri> "https://pragprog.com/" .
<https://pragprog.com/> <https://example/name> "The Pragmatic Bookshelf" .
<https://pragprog.com/> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
    <https://example/Publisher> .

Marked As Solved

tonyhammond

tonyhammond

Author of Exploring Graphs with Elixir

OK, just fixing that now but it’s better to change the short form RDF (on p. 125, 126) to match the long form RDF (on p. 126), so that we have

p. 125
:id “pragmatic” ;

p. 126
ex:id “pragmatic” ;
https://pragprog.com/ https://example/id “pragmatic”

This is consistent with labeling in diagram on p.8 and with the semantic version on p. 127.

And, btw, thanks for drawing my attention to this as I see I also had the wrong :id value for the book itself on pp. 125 and 127.

was
:id “ben_marx” ;

should be, of course,
:id “adopting_elixir” ;

Changes should be in bext beta.

Where Next?

Popular Pragmatic Bookshelf topics Top

New
lirux
Hi Jamis, I think there’s an issue with a test on chapter 6. I own the ebook, version P1.0 Feb. 2019. This test doesn’t pass for me: ...
New
curtosis
Running mix deps.get in the sensor_hub directory fails with the following error: ** (Mix) No SSH public keys found in ~/.ssh. An ssh aut...
New
taguniversalmachine
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
mert
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 @rub...
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
New
New
dachristenson
I’ve got to the end of Ch. 11, and the app runs, with all tabs displaying what they should – at first. After switching around between St...
New

Other popular topics Top

PragmaticBookshelf
Stop developing web apps with yesterday’s tools. Today, developers are increasingly adopting Clojure as a web-development platform. See f...
New
PragmaticBookshelf
Learn from the award-winning programming series that inspired the Elixir language, and go on a step-by-step journey through the most impo...
New
AstonJ
Or looking forward to? :nerd_face:
503 15149 280
New
dasdom
No chair. I have a standing desk. This post was split into a dedicated thread from our thread about chairs :slight_smile:
New
Rainer
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
PragmaticBookshelf
Rust is an exciting new programming language combining the power of C with memory safety, fearless concurrency, and productivity boosters...
New
Exadra37
I am asking for any distro that only has the bare-bones to be able to get a shell in the server and then just install the packages as we ...
New
New
husaindevelop
Inside our android webview app, we are trying to paste the copied content from another app eg (notes) using navigator.clipboard.readtext ...
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

Sub Categories: