Programming Phoenix LiveView (Pragmatic Bookshelf)
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The line on page 65 (using the PDF) is
on_mount: [{PentoWeb.UserAuth, :ensure_authenticated}] do
This is incorrect and will throw an e...
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Title: Programming Phoenix LiveView (page 139)
Example: “Redipient” should be “Recipient”
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Sorry, I couldn’t figure out how to add a tag to a previous post (so that it shows up in the right section here), hence I just made a new...
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Title: Programming Phoenix LiveView: Error on page 102
Example: The text says
Add the following
snippet to your index.html.eex templat...
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Disclaimer: I hope all of this is accurate, and not the result of some stupid typo I failed to notice. Anyways…
This post comprises 2 is...
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The schemaless form defined in file “lib/pento_web/live/promo_live.html.heex” on page 133 of the book requires some transformation. The :...
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Hi, I just finished reading Programming Phoenix LiveView B10 PDF edition.
I found some typos and errata, and I will report them all in t...
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The code example at the top of page 140 includes the phx-debounce=blur binding:
<.input field={@form[:email]} type="email"
label="E...
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In PentoWeb.RatingLive.Index.product_rating/1 function, there is a call to <RatingLive.Show.stars rating={rating} product={@product} /...
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Hi! To get to see the shapes on the board, I think that where it says:
# lib/pento_web/live/game_live/board.ex
def assign_shapes(%{assig...
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The 3rd paragraph on the page states:
Our <.header> function invocation in the index template doesn’t make use of the <:subtit...
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The last line in the first paragraph on page 99 reads:
…put certain instructions in socket.products.inserts or socket.products.deletes....
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Second paragraph in section Protect Routes with Plugs says "The authentication service is defined in the file lib/pento_web/controllers/u...
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Talking about the Contex library, I think there is a tiny typo when referencing the library on page 246 (certainly because of auto-correc...
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The first paragraph on page 219 mentions a checkbox:
Then, we use the heading/1 component that we’ll define in a bit to show a heading ...
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This paragraph mentions three functions that ensure data consistency:
Finally, the validate/2, unique_constraint/2, and validate_number...
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The second paragraph on page 221 describes the demographic display logic:
… If no demographic exists, and the socket assigns key of :de...
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The “Give It a Try” exercise “Add a Custom Validation” challenges the reader to:
First, add a custom validation to the Product schema’s...
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Hi! The first code snippet is presented in plain text:
def to_shapes(board) do
board_shape = to_shape(board)
pento_shapes = [board.a...
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It seems the second code snippet is missing the code to set the current_user:
current_user: Accounts.get_user_by_session_token(session["...
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root_layout: {PentoWeb.LayoutView, :root},
This results in the following following error:
no “root” html template defined for PentoWeb...
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Book: Programming Phoenix LiveView, page 142 (157/378), file lib/pento_web/live/product_live/form_component.ex, in the function below:
d...
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Title: Programming Phoenix LiveView B8 - entire Ch4 modal component section needs correcting (Page 101-114)
Example: Programming Flutter...
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(Phoenix 1.6.6, Ecto 3.7.2, Elixir 1.13)
When building the custom Survey context, we are told to then update the rating.ex file with the...
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The introduction instructions under section “Build a Simple LiveView” are incomplete. If followed from book one gets the following error:...
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In the code sample for auth /pento/lib/pento_web/live/user_auth_live.ex the on_mount function is defined as:
on_mount(_, params, %{"user...
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Since LiveView now supports Streams, the generated code seems to be pushing the user in that direction as well.
As a result, the example...
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The first heex block of code in the section The Promo Live View should just be the <.header>; the code errors out if you include th...
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The link to live_patch/2 on the bottom of the page does not work. It seems this function no longer exists in the latest version. This may...
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After adding the code for on_mount/4 in UserAuthLive and then trying it out, I found that logging out fails due to /login not existing. I...
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p 150
Now, we’re ready to plug our custom code into the save_product helper functions.
Since we’ve delegated most of the hard work to t...
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Page 74: The Ecto.Changeset.cast/4 function filters the user data we pass into params.
params should be attrs
Pages 85-86: the function...
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When restarting phx to try out the file upload changes as implicitly directed via:
“Now, if you point your browser at /products/new, you...
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The code example explicitly adds a layout to the live session used for WrongLive:
root_layout: {PentoWeb.LayoutView, :root},
This m...
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In general, the book isn’t yet updated for Phoenix version 1.6. On page 18 of the book, the authors indicate that an auto generated of ro...
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The markup used to display the uploaded image results in a Phoenix.LiveView.HTMLTokenizer.ParseError error.
lib/pento_web/live/product_l...
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The generated iex result below should list products instead of product for the metadata. (page 67)
iex> product = %Product{}
%Pento....
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Hi! I know not the intentions behind this narrative when called, on page XI:
mount() |> handle_event() |> render()
but the correc...
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“The ProductLive.Index template calls a helper function, live_component/3, that in turn calls on the modal component. ”
Excerpt From: Br...
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A further clarification: When I move to the “Stateful components” section and run a compile with “iex -S mix”, the compile works. When I ...
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The right lifecycle should be
mount/3
handle_prams/3
render/3
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On Chapter 3 - Page 78, the beginning of the page has this code here:
@doc """
Maybe it is missing to put the Pento context before Cata...
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socket is being accessed in the function body, hence the need to include it in the function head.
Current:
def maybe_track_user(
...
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The text talks about adding two keys to assigns, a session_id key and a current_user key, but the example code is only showing the sessio...
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Hi there,
Just wanted to call out that although what needs to happen should be pretty obvious, when we add handle_progress/3 on page 138...
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“You’ll see how LiveView let’s you move fast by offering elegant patterns for code organization, and you’ll find that LiveView is the per...
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“…With this function, we name the concept of a base query and we provide one common way to build the foundation for all Demographic queri...
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Title: Programming Phoenix LiveView:IEX command not correct. Should be “alias Pento.Catalog.Product” not “alias Pento.Product” page 166.
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Confiirm should be confirm
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