josevalim
commented
2 years ago This is not possible because Phoenix.HTML itself defines this protocol. Please try deleting _build and trying again just in case?
Closed agreif closed 1 year ago
josevalim
commented
2 years ago This is not possible because Phoenix.HTML itself defines this protocol. Please try deleting _build and trying again just in case?
agreif
commented
2 years ago deleted _build... called 'http://localhost:4000/users/log_in' two times which were ok, and the third call brought the exact same error. reloading worked again fine another reload brought error again. 3 times reloading worked fine then a reload threw the error again.
So in average 2-4 request are fine and the the error occures. sometimes it need 20-30 reloads in the browser an then the error happens
agreif
commented
2 years ago Here are the exact steps I did:
[agreif@nixos:~/project]$ mix phx.new auth
* creating auth/config/config.exs
* creating auth/config/dev.exs
* creating auth/config/prod.exs
* creating auth/config/runtime.exs
* creating auth/config/test.exs
* creating auth/lib/auth/application.ex
* creating auth/lib/auth.ex
* creating auth/lib/auth_web/views/error_helpers.ex
* creating auth/lib/auth_web/views/error_view.ex
* creating auth/lib/auth_web/endpoint.ex
* creating auth/lib/auth_web/router.ex
* creating auth/lib/auth_web/telemetry.ex
* creating auth/lib/auth_web.ex
* creating auth/mix.exs
* creating auth/README.md
* creating auth/.formatter.exs
* creating auth/.gitignore
* creating auth/test/support/conn_case.ex
* creating auth/test/test_helper.exs
* creating auth/test/auth_web/views/error_view_test.exs
* creating auth/lib/auth/repo.ex
* creating auth/priv/repo/migrations/.formatter.exs
* creating auth/priv/repo/seeds.exs
* creating auth/test/support/data_case.ex
* creating auth/lib/auth_web/controllers/page_controller.ex
* creating auth/lib/auth_web/views/page_view.ex
* creating auth/test/auth_web/controllers/page_controller_test.exs
* creating auth/test/auth_web/views/page_view_test.exs
* creating auth/assets/vendor/topbar.js
* creating auth/lib/auth_web/templates/layout/root.html.heex
* creating auth/lib/auth_web/templates/layout/app.html.heex
* creating auth/lib/auth_web/templates/layout/live.html.heex
* creating auth/lib/auth_web/views/layout_view.ex
* creating auth/lib/auth_web/templates/page/index.html.heex
* creating auth/test/auth_web/views/layout_view_test.exs
* creating auth/lib/auth/mailer.ex
* creating auth/lib/auth_web/gettext.ex
* creating auth/priv/gettext/en/LC_MESSAGES/errors.po
* creating auth/priv/gettext/errors.pot
* creating auth/assets/css/phoenix.css
* creating auth/assets/css/app.css
* creating auth/assets/js/app.js
* creating auth/priv/static/robots.txt
* creating auth/priv/static/images/phoenix.png
* creating auth/priv/static/favicon.ico
Fetch and install dependencies? [Yn]
* running mix deps.get
* running mix deps.compile
We are almost there! The following steps are missing:
$ cd auth
Then configure your database in config/dev.exs and run:
$ mix ecto.create
Start your Phoenix app with:
$ mix phx.server
You can also run your app inside IEx (Interactive Elixir) as:
$ iex -S mix phx.server
[agreif@nixos:~/project]$ mv auth/ phx-auth
[agreif@nixos:~/project]$ cd phx-auth/ adjusted DB settings
[agreif@nixos:~/project/phx-auth]$ mix ecto.create
warning: the :gettext compiler is no longer required in your mix.exs.
Please find the following line in your mix.exs and remove the :gettext entry:
compilers: [..., :gettext, ...] ++ Mix.compilers(),
(gettext 0.20.0) lib/mix/tasks/compile.gettext.ex:5: Mix.Tasks.Compile.Gettext.run/1
(mix 1.13.4) lib/mix/task.ex:397: anonymous fn/3 in Mix.Task.run_task/3
(mix 1.13.4) lib/mix/tasks/compile.all.ex:92: Mix.Tasks.Compile.All.run_compiler/2
(mix 1.13.4) lib/mix/tasks/compile.all.ex:72: Mix.Tasks.Compile.All.compile/4
(mix 1.13.4) lib/mix/tasks/compile.all.ex:59: Mix.Tasks.Compile.All.with_logger_app/2
(mix 1.13.4) lib/mix/tasks/compile.all.ex:36: Mix.Tasks.Compile.All.run/1
Compiling 14 files (.ex)
Generated auth app
The database for Auth.Repo has already been created removed getttext in mix.exs
started server once without auth
[agreif@nixos:~/project/phx-auth]$ mix phx.server
Generated auth app
[info] Running AuthWeb.Endpoint with cowboy 2.9.0 at 127.0.0.1:4000 (http)
[info] Access AuthWeb.Endpoint at http://localhost:4000
[watch] build finished, watching for changes...
[info] GET /
[debug] Processing with AuthWeb.PageController.index/2
Parameters: %{}
Pipelines: [:browser]
[info] Sent 200 in 311ms
^C
BREAK: (a)bort (A)bort with dump (c)ontinue (p)roc info (i)nfo
(l)oaded (v)ersion (k)ill (D)b-tables (d)istribution
^C installed auth
[agreif@nixos:~/project/phx-auth]$ mix phx.gen.auth Accounts User users [107/1729]
* creating priv/repo/migrations/20220922070058_create_users_auth_tables.exs
* creating lib/auth/accounts/user_notifier.ex
* creating lib/auth/accounts/user.ex
* creating lib/auth/accounts/user_token.ex
* creating lib/auth_web/controllers/user_auth.ex
* creating test/auth_web/controllers/user_auth_test.exs
* creating lib/auth_web/views/user_confirmation_view.ex
* creating lib/auth_web/templates/user_confirmation/new.html.heex
* creating lib/auth_web/templates/user_confirmation/edit.html.heex
* creating lib/auth_web/controllers/user_confirmation_controller.ex
* creating test/auth_web/controllers/user_confirmation_controller_test.exs
* creating lib/auth_web/templates/layout/_user_menu.html.heex
* creating lib/auth_web/templates/user_registration/new.html.heex
* creating lib/auth_web/controllers/user_registration_controller.ex
* creating test/auth_web/controllers/user_registration_controller_test.exs
* creating lib/auth_web/views/user_registration_view.ex
* creating lib/auth_web/views/user_reset_password_view.ex
* creating lib/auth_web/controllers/user_reset_password_controller.ex
* creating test/auth_web/controllers/user_reset_password_controller_test.exs
* creating lib/auth_web/templates/user_reset_password/edit.html.heex
* creating lib/auth_web/templates/user_reset_password/new.html.heex
* creating lib/auth_web/views/user_session_view.ex
* creating lib/auth_web/controllers/user_session_controller.ex
* creating test/auth_web/controllers/user_session_controller_test.exs
* creating lib/auth_web/templates/user_session/new.html.heex
* creating lib/auth_web/views/user_settings_view.ex
* creating lib/auth_web/templates/user_settings/edit.html.heex
* creating lib/auth_web/controllers/user_settings_controller.ex
* creating test/auth_web/controllers/user_settings_controller_test.exs
* creating lib/auth/accounts.ex
* injecting lib/auth/accounts.ex
* creating test/auth/accounts_test.exs
* injecting test/auth/accounts_test.exs
* creating test/support/fixtures/accounts_fixtures.ex
* injecting test/support/fixtures/accounts_fixtures.ex
* injecting test/support/conn_case.ex
* injecting config/test.exs
* injecting mix.exs
* injecting lib/auth_web/router.ex
* injecting lib/auth_web/router.ex - imports
* injecting lib/auth_web/router.ex - plug
* injecting lib/auth_web/templates/layout/root.html.heex
Please re-fetch your dependencies with the following command:
$ mix deps.get
Remember to update your repository by running migrations:
$ mix ecto.migrate
Once you are ready, visit "/users/register"
to create your account and then access "/dev/mailbox" to
see the account confirmation email.
[agreif@nixos:~/project/phx-auth]$ mix deps.get
Resolving Hex dependencies...
Dependency resolution completed:
Unchanged:
castore 0.1.18
connection 1.1.0
cowboy 2.9.0
cowboy_telemetry 0.4.0
cowlib 2.11.0
db_connection 2.4.2
decimal 2.0.0
ecto 3.8.4
ecto_sql 3.8.3
esbuild 0.5.0
file_system 0.2.10
floki 0.33.1
gettext 0.20.0
html_entities 0.5.2
jason 1.4.0
mime 2.0.3
phoenix 1.6.12
phoenix_ecto 4.4.0
phoenix_html 3.2.0
phoenix_live_dashboard 0.6.5
phoenix_live_reload 1.3.3
phoenix_live_view 0.17.12
phoenix_pubsub 2.1.1
phoenix_view 1.1.2
plug 1.13.6
plug_cowboy 2.5.2
plug_crypto 1.2.3
postgrex 0.16.5
ranch 1.8.0
swoosh 1.8.0
telemetry 1.1.0
telemetry_metrics 0.6.1
telemetry_poller 1.0.0
New:
bcrypt_elixir 3.0.1
comeonin 5.3.3
elixir_make 0.6.3
* Getting bcrypt_elixir (Hex package)
* Getting comeonin (Hex package)
* Getting elixir_make (Hex package)
[agreif@nixos:~/project/phx-auth]$ mix ecto.migrate
09:02:13.135 [info] == Running 20220922070058 Auth.Repo.Migrations.CreateUsersAuthTables.change/0 forward
09:02:13.158 [info] execute "CREATE EXTENSION IF NOT EXISTS citext"
09:02:13.159 [info] extension "citext" already exists, skipping
09:02:13.159 [info] create table users
09:02:13.219 [info] create index users_email_index
09:02:13.241 [info] create table users_tokens
09:02:13.257 [info] create index users_tokens_user_id_index
09:02:13.261 [info] create index users_tokens_context_token_index
09:02:13.285 [info] == Migrated 20220922070058 in 0.1s
started server
[agreif@nixos:~/project/phx-auth]$ mix phx.server [530/1914]
[info] Running AuthWeb.Endpoint with cowboy 2.9.0 at 127.0.0.1:4000 (http)
[info] Access AuthWeb.Endpoint at http://localhost:4000
[watch] build finished, watching for changes...
[info] GET /users/log_in
[debug] Processing with AuthWeb.UserSessionController.new/2
Parameters: %{}
Pipelines: [:browser, :redirect_if_user_is_authenticated]
[info] Sent 200 in 345ms
[info] GET /users/log_in [debug] Processing with AuthWeb.UserSessionController.new/2 Parameters: %{} Pipelines: [:browser, :redirect_if_user_is_authenticated]
[info] Sent 200 in 28ms
[info] GET /users/log_in [debug] Processing with AuthWeb.UserSessionController.new/2 Parameters: %{} Pipelines: [:browser, :redirect_if_user_is_authenticated]
[info] Sent 200 in 43ms
[info] GET /users/log_in [debug] Processing with AuthWeb.UserSessionController.new/2 Parameters: %{} Pipelines: [:browser, :redirect_if_user_is_authenticated]
[debug] Duplicate channel join for topic "phoenix:live_reload" in Phoenix.LiveReloader.Socket. Closing existing channel for new join.
[info] Sent 200 in 25ms
[info] GET /users/log_in
[debug] Processing with AuthWeb.UserSessionController.new/2 Parameters: %{} Pipelines: [:browser, :redirect_if_user_is_authenticated]
[info] Sent 200 in 39ms
[info] GET /users/log_in [debug] Processing with AuthWeb.UserSessionController.new/2 Parameters: %{} Pipelines: [:browser, :redirect_if_user_is_authenticated]
[info] Sent 200 in 30ms
[info] GET /users/log_in
...
[info] GET /users/log_in [450/1914]
[debug] Processing with AuthWeb.UserSessionController.new/2
Parameters: %{}
Pipelines: [:browser, :redirect_if_user_is_authenticated]
[debug] Duplicate channel join for topic "phoenix:live_reload" in Phoenix.LiveReloader.Socket. Closing existing channel for new join.
[info] Sent 500 in 277ms
[error] #PID<0.783.0> running AuthWeb.Endpoint (connection #PID<0.535.0>, stream id 15) terminated
Server: localhost:4000 (http)
Request: GET /users/log_in
** (exit) an exception was raised:
** (UndefinedFunctionError) function Phoenix.HTML.FormData.to_form/2 is undefined or private
(phoenix_html 3.2.0) Phoenix.HTML.FormData.to_form(%Plug.Conn{adapter: {Plug.Cowboy.Conn, :...}, assigns: %{current_user: nil, error_message: nil, layout: {AuthWeb.LayoutView
, "app.html"}}, body_params: %{}, cookies: %{"NAS_PW_STATUS" => "0", "QMonitor" => "1657177331274", "QT" => "1657185725273", "XSRF-TOKEN" => "RJuVco9uTI", "__profilin" => "p%3Dt", "_
auth_key" => "...","_demo_key" => "...", "id" => "Av5xUQgj46FRAtW2vb2p4CAC2o5JY0IvMU9slkvsxSAtENI
FVpCsyDX51c0bpH0qAnvBrFtHbwvdhZEV4wS4Ck", "showAllAp" => "true", "smid" => "..."}, halted: false, h
ost: "localhost", method: "GET", owner: #PID<0.783.0>, params: %{}, path_info: ["users", "log_in"], path_params: %{}, port: 4000, private: %{AuthWeb.Router => {[], %{Plug.Swoosh.Mail
boxPreview => ["mailbox"]}}, :before_send => [#Function<0.16477574/1 in Plug.CSRFProtection.call/2>, #Function<2.17183421/1 in Phoenix.Controller.fetch_flash/2>, #Function<0.77458138
/1 in Plug.Session.before_send/2>, #Function<0.23023616/1 in Plug.Telemetry.call/2>, #Function<1.120844262/1 in Phoenix.LiveReloader.before_send_inject_reloader/3>], :phoenix_action
=> :new, :phoenix_controller => AuthWeb.UserSessionController, :phoenix_endpoint => AuthWeb.Endpoint, :phoenix_flash => %{}, :phoenix_format => "html", :phoenix_layout => {AuthWeb.La
youtView, :app}, :phoenix_request_logger => {"request_logger", "request_logger"}, :phoenix_root_layout => {AuthWeb.LayoutView, :root}, :phoenix_router => AuthWeb.Router, :phoenix_tem
plate => "new.html", :phoenix_view => AuthWeb.UserSessionView, :plug_session => %{"_csrf_token" => "B8Q9ppcwo6jE8i2ECWpiEztW"}, :plug_session_fetch => :done}, query_params: %{}, quer
y_string: "", remote_ip: {127, 0, 0, 1}, req_cookies: %{"NAS_PW_STATUS" => "0", "QMonitor" => "1657177331274", "QT" => "1657185725273", "XSRF-TOKEN" => "RJuVco9uTI", "__profilin" =>
"p%3Dt", "_auth_key" => "...", ... (truncate
d)
[info] GET /users/log_in
[debug] Processing with AuthWeb.UserSessionController.new/2
Parameters: %{}
Pipelines: [:browser, :redirect_if_user_is_authenticated]
[info] Sent 200 in 21ms
[info] GET /users/log_in
[debug] Processing with AuthWeb.UserSessionController.new/2
Parameters: %{}
Pipelines: [:browser, :redirect_if_user_is_authenticated]
[info] Sent 200 in 40msAre you using an editor with automatic compilation or anything that could be trying to compile things behind the scenes and therefore affecting the results?
If so, try using only mix phx.server from the terminal and see if the issue persists.
agreif
commented
2 years ago Hi I am working via ssh on a headless server where I edit files with emacs directly from the command line. As you can see in my last log post I aready start the server with 'mix phx.server'. You should be able to reproduce it with the steps I gave. Just setup a simple project, add the auth, start the server and reload the login page repeatedly in a fast pace.
m4hi2
commented
2 years ago @agreif I've followed the steps you've taken but couldn't reproduce the error. I've refreshed by repeatedly pressing the "F5" key, but it loaded each time properly.
Like Jose has already mentioned, it might be that you have some LSP helper setup with emacs and it can cause some issues. Can you please run rm -rf _build and then run mix compile && mix phx.server without opening files with emacs?
Note: I've tested with the same exact Elixir/OTP and Phoenix version as you. The only difference is the OS, I've used Ubuntu 20.04
josevalim
commented
2 years ago Thank you @m4hi2 for looking into it!
agreif
commented
2 years ago @m4hi2 I did 'rm -rf _build && mix compile && mix phx.server' and now it took longer, but calling 'http://localhost:4000/users/log_in' in the browser and Ctrl-R about 100 times brought the error.
agreif
commented
2 years ago @m4hi2 emacs was closed, so this is not the reason and nothing else is changing files in the directory. The error (UndefinedFunctionError) function Phoenix.HTML.FormData.to_form/2 is undefined or private still happens.
Its really weird, because it sometimes happens after a few reloads and sometimes (as above) after 100 reloads.
josevalim
commented
2 years ago Oh! What is the ulimit in your system? Have you tried bumping it up?
Sometimes Erlang cannot load modules because of ulimit...
agreif
commented
2 years ago [root@nixos:~]# ulimit -n
1024which value is suggested?
m4hi2
commented
2 years ago I used for x in $(seq 1000); do curl http://localhost:4000/users/log_in > /dev/null ; done on a separate terminal window while keeping an eye on the window that is running the phx.server but haven't encountered any errors. This is no scientific test by any means, for that we'd have to resort to tools like Playwright I think.
BTW, I've the same ulimit value of 1024 on my system.
m4hi2
commented
2 years ago Sometimes Erlang cannot load modules because of limit...
But since it's sometimes working and only after a while it's not working, doesn't it mean that the modules are already loaded? 🤔
josevalim
commented
2 years ago Please try setting it to unlimited or quadrupling it just in case.
agreif
commented
2 years ago [root@nixos:~]# ulimit -n 65565
even now, after reloading for 20 secs the error happens :(
theenglishway
commented
2 years ago Hi all !
I've been hitting the exact same problem as @agreif a good number of times while doing personal stuff with Phoenix Live-View over the last months (or last year ?), but due to its spurious nature I never bothered to turn it into an issue.. It seemed totally random to me, though occurring quite often.
At the moment I'm running Erlang/OTP 25 and Elixir v1.14.0 (installed under ArchLinux using asdf) but I run into the same problem with older versions of Elixir / Erlang (1.13.x and OTP 24 and maybe even with a 1.12.x or under Debian but I could not swear).
I'm running a VERY simple toy application which I could totally share if that turned useful. I've tried the suggestions posted in this thread : deleting _build, closing my IDE (VS Code with extensions related to Elixir language), ... to no effect.
At the moment, I can reproduce the bug with 100% reliability by simply launching the dev server of that app with and navigating to localhost:4000 in Firefox.
I have noticed some interesting patterns though, of which an expert eye might make some sense :
iex --erl "+S 1" -S mix phx.server, the error will occur EVERY TIME (except the first) I load the page in Firefox
curl localhost:4000 : curl call will get a totally normal responsecurl request will work normally ONLY ONCEIn the setup I describe where the server is started with --erl "+S 1", changing ulimit -n does not seem to have any effect. Setting it to 1024 or to the highest value (524_288 on my system) did not change anything, and it kept on crashing every time but the first in both cases.
I'll add that for some reason, I've been using this "+S 1" flag a lot, and it's very, very likely that I was using it all the times I saw that problem occur over the last few months.
Hope that can help, and tell me if you have any suggestion of test I could do or additional information I could give
chrismccord
commented
1 year ago If folks can provide more information on this it would be helpful, but I don't believe it's an issue on our side. Thanks!
theenglishway
commented
1 year ago @chrismccord The issue is still happening here, with 100% reliable reproducibility on the project I am currently working on, when I run it with iex --erl "+S 1" -S mix phx.server.
This does not seem specifically related to Phoenix indeed since on my other project it may also throw such a random error with some other protocol, e.g. Phoenix.HTML.Safe or Ecto.Queryable.
As I said in a previous comment, I'm willing to help sort the issue and provide some additional information, test other scenarios, or fill a bug report in another repo (Elixir itself ?), but as of today I really don't have the expertise to provide a minimal project that reproduces the issue as reliably as on my project (which I won't share).
What I can say though is that if I follow the procedure that @agreif described in a comment above, the bug will occur quite often on my machine (though not very reliably : about once every five or ten page refresh).
My setup :
$ elixir -v
Erlang/OTP 25 [erts-13.0.4] [source] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:1] [jit:ns]
Elixir 1.14.2 (compiled with Erlang/OTP 25)
$ mix phx.new --version
Phoenix installer v1.7.0-rc.0(my personal project uses the same versions)
Steps I followed :
mix phx.new form_bug --database sqlite3
cd form_bug
mix ecto.create
mix phx.gen.auth Accounts User users
mix deps.get
mix ecto.migrate Then run the server with iex --erl "+S 1" -S mix phx.server, go to http://localhost:4000/ and click like a maniac on the "Register" link (it makes the bug occur more reliably than refreshing the page with F5).
After 5/10 times, the following error message appears :
# UndefinedFunctionError at GET /users/register
Exception:
** (UndefinedFunctionError) function Phoenix.HTML.FormData.to_form/2 is undefined (module Phoenix.HTML.FormData is not available)
(phoenix_html 3.2.0) Phoenix.HTML.FormData.to_form(#Ecto.Changeset<action: nil, changes: %{}, errors: [password: {"can't be blank", [validation: :required]}, email: {"can't be blank", [validation: :required]}], data: #FormBug.Accounts.User<>, valid?: false>, [as: :user, errors: [], id: "registration_form", method: "post", multipart: false, "phx-change": "validate", "phx-submit": "save", "phx-trigger-action": false])
(phoenix_live_view 0.18.3) lib/phoenix_component.ex:1939: Phoenix.Component."form (overridable 1)"/1
(phoenix_live_view 0.18.3) lib/phoenix_live_view/html_engine.ex:35: Phoenix.LiveView.HTMLEngine.component/3
(form_bug 0.1.0) lib/form_bug_web/components/core_components.ex:193: anonymous fn/2 in FormBugWeb.CoreComponents."simple_form (overridable 1)"/1
(form_bug 0.1.0) /home/theenglishway/Documents/dev/form_bug/lib/form_bug_web/live/user_registration_live.ex:21: FormBugWeb.UserRegistrationLive.render/1
(elixir 1.14.2) lib/enum.ex:2468: Enum."-reduce/3-lists^foldl/2-0-"/3
(phoenix_live_view 0.18.3) lib/phoenix_live_view/diff.ex:387: Phoenix.LiveView.Diff.traverse/7
(phoenix_live_view 0.18.3) lib/phoenix_live_view/diff.ex:521: anonymous fn/4 in Phoenix.LiveView.Diff.traverse_dynamic/7
(elixir 1.14.2) lib/enum.ex:2468: Enum."-reduce/3-lists^foldl/2-0-"/3
(phoenix_live_view 0.18.3) lib/phoenix_live_view/diff.ex:387: Phoenix.LiveView.Diff.traverse/7
(phoenix_live_view 0.18.3) lib/phoenix_live_view/diff.ex:138: Phoenix.LiveView.Diff.render/3
(phoenix_live_view 0.18.3) lib/phoenix_live_view/static.ex:244: Phoenix.LiveView.Static.to_rendered_content_tag/4
(phoenix_live_view 0.18.3) lib/phoenix_live_view/static.ex:127: Phoenix.LiveView.Static.render/3
(phoenix_live_view 0.18.3) lib/phoenix_live_view/controller.ex:39: Phoenix.LiveView.Controller.live_render/3
(phoenix 1.7.0-rc.0) lib/phoenix/router.ex:425: Phoenix.Router.__call__/2
(form_bug 0.1.0) lib/form_bug_web/endpoint.ex:1: FormBugWeb.Endpoint.plug_builder_call/2
(form_bug 0.1.0) lib/plug/debugger.ex:136: FormBugWeb.Endpoint."call (overridable 3)"/2
(form_bug 0.1.0) lib/form_bug_web/endpoint.ex:1: FormBugWeb.Endpoint.call/2
Code:
`nofile`
No code available.
Called with 2 arguments
* `#Ecto.Changeset<action: nil, changes: %{}, errors: [password: {"can't be blank", [validation: :required]}, email: {"can't be blank", [validation: :required]}], data: #FormBug.Accounts.User<>, valid?: false>`
* `[as: :user, errors: [], id: "registration_form", method: "post", multipart: false, "phx-change": "validate", "phx-submit": "save", "phx-trigger-action": false]`
Attempted function clauses (showing 1 out of 1)
def to_form(term, arg2)
`lib/phoenix_component.ex`
1934 form_options = assigns_to_attributes(Map.merge(assigns, assigns.rest), [:action, :for, :rest])
1935
1936 # Since FormData may add options, read the actual options from form
1937 %{options: opts} =
1938 form = %Phoenix.HTML.Form{
1939> Phoenix.HTML.FormData.to_form(form_for, form_options)
1940 | action: action || "#"
1941 }
1942
1943 # By default, we will ignore action, method, and csrf token
1944 # unless the action is given.
`lib/phoenix_live_view/html_engine.ex`
30 case assigns do
31 %{__changed__: _} -> assigns
32 _ -> assigns |> Map.new() |> Map.put_new(:__changed__, nil)
33 end
34
35> case func.(assigns) do
36 %Phoenix.LiveView.Rendered{} = rendered ->
37 %{rendered | caller: caller}
38
39 %Phoenix.LiveView.Component{} = component ->
40 component
`lib/form_bug_web/components/core_components.ex`
188 slot :inner_block, required: true
189 slot :actions, doc: "the slot for form actions, such as a submit button"
190
191 def simple_form(assigns) do
192 ~H"""
193> <.form :let={f} for={@for} as={@as} {@rest}>
194 <div class="space-y-8 bg-white mt-10">
195 <%= render_slot(@inner_block, f) %>
196 <div :for={action <- @actions} class="mt-2 flex items-center justify-between gap-6">
197 <%= render_slot(action, f) %>
198 </div>
`/home/theenglishway/Documents/dev/form_bug/lib/form_bug_web/live/user_registration_live.ex`
16 </.link>
17 to your account now.
18 </:subtitle>
19 </.header>
20
21> <.simple_form
22 :let={f}
23 id="registration_form"
24 for={@changeset}
25 phx-submit="save"
26 phx-change="validate"
`lib/enum.ex`
No code available.
`lib/phoenix_live_view/diff.ex`
382 components,
383 template,
384 changed?
385 ) do
386 {_counter, diff, children, pending, components, template} =
387> traverse_dynamic(socket, invoke_dynamic(rendered, false), %{}, pending, components, template, changed?)
388
389 {diff, template} = maybe_template_static(diff, fingerprint, static, template)
390 {diff, {fingerprint, children}, pending, components, template}
391 end
392
`lib/phoenix_live_view/diff.ex`
516 Enum.reduce(dynamic, {0, %{}, children, pending, components, template}, fn
517 entry, {counter, diff, children, pending, components, template} ->
518 child = Map.get(children, counter)
519
520 {serialized, child_fingerprint, pending, components, template} =
521> traverse(socket, entry, child, pending, components, template, changed?)
522
523 # If serialized is nil, it means no changes.
524 # If it is an empty map, then it means it is a rendered struct
525 # that did not change, so we don't have to emit it either.
526 diff =
`lib/enum.ex`
No code available.
`lib/phoenix_live_view/diff.ex`
382 components,
383 template,
384 changed?
385 ) do
386 {_counter, diff, children, pending, components, template} =
387> traverse_dynamic(socket, invoke_dynamic(rendered, false), %{}, pending, components, template, changed?)
388
389 {diff, template} = maybe_template_static(diff, fingerprint, static, template)
390 {diff, {fingerprint, children}, pending, components, template}
391 end
392
`lib/phoenix_live_view/diff.ex`
133 render(%{socket | fingerprints: new_fingerprints()}, rendered, new_components(uuids))
134 end
135
136 def render(%{fingerprints: prints} = socket, %Rendered{} = rendered, components) do
137 {diff, prints, pending, components, nil} =
138> traverse(socket, rendered, prints, %{}, components, nil, true)
139
140 # cid_to_component is used by maybe_reuse_static and it must be a copy before changes.
141 # However, given traverse does not change cid_to_component, we can read it now.
142 {cid_to_component, _, _} = components
143
`lib/phoenix_live_view/static.ex`
239 {:safe, dynamic_tag_to_iodata(tag, attrs, "")}
240 end
241
242 defp to_rendered_content_tag(socket, tag, view, attrs) do
243 rendered = Utils.to_rendered(socket, view)
244> {_, diff, _} = Diff.render(socket, rendered, Diff.new_components())
245 {:safe, dynamic_tag_to_iodata(tag, attrs, {:safe, Diff.to_iodata(diff)})}
246 end
247
248 defp dynamic_tag_to_iodata(tag, attrs, content) do
249 assigns = %{tag: tag, attrs: attrs, content: content}
`lib/phoenix_live_view/static.ex`
122 {:data, data_attrs}
123 | extended_attrs
124 ]
125
126 try do
127> {:ok, to_rendered_content_tag(socket, tag, view, attrs), socket.assigns}
128 catch
129 :throw, {:phoenix, :child_redirect, redirected, flash} ->
130 {:stop, Utils.replace_flash(%{socket | redirected: redirected}, flash)}
131 end
132
`lib/phoenix_live_view/controller.ex`
34 end
35 end
36
37 """
38 def live_render(%Plug.Conn{} = conn, view, opts \\ []) do
39> case LiveView.Static.render(conn, view, opts) do
40 {:ok, content, socket_assigns} ->
41 conn
42 |> Phoenix.Controller.put_view(LiveView.Static)
43 |> Phoenix.Controller.render(
44 "template.html",
`lib/phoenix/router.ex`
420 :telemetry.execute([:phoenix, :router_dispatch, :stop], measurements, metadata)
421 halted_conn
422
423 %Plug.Conn{} = piped_conn ->
424 try do
425> plug.call(piped_conn, plug.init(opts))
426 else
427 conn ->
428 measurements = %{duration: System.monotonic_time() - start}
429 metadata = %{metadata | conn: conn}
430 :telemetry.execute([:phoenix, :router_dispatch, :stop], measurements, metadata)
`lib/form_bug_web/endpoint.ex`
1> defmodule FormBugWeb.Endpoint do
2 use Phoenix.Endpoint, otp_app: :form_bug
3
4 # The session will be stored in the cookie and signed,
5 # this means its contents can be read but not tampered with.
6 # Set :encryption_salt if you would also like to encrypt it.
`lib/plug/debugger.ex`
No code available.
`lib/form_bug_web/endpoint.ex`
1> defmodule FormBugWeb.Endpoint do
2 use Phoenix.Endpoint, otp_app: :form_bug
3
4 # The session will be stored in the cookie and signed,
5 # this means its contents can be read but not tampered with.
6 # Set :encryption_salt if you would also like to encrypt it.
## Connection details
### Params
%{}
### Request info
* URI: http://localhost:4000/users/register
* Query string:
### Headers
* accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
* accept-encoding: gzip, deflate, br
* accept-language: en-US,en;q=0.5
* connection: keep-alive
* cookie: _form_bug_key=SFMyNTY.g3QAAAABbQAAAAtfY3NyZl90b2tlbm0AAAAYdGlGLVFEclNkWUtWYmRKYTA4bU41eGIt.aIup6z3SlZouKIKcFQ-Ia4mfpjsXGr5HFSMG55Ff9gg
* host: localhost:4000
* referer: http://localhost:4000/users/register
* sec-fetch-dest: document
* sec-fetch-mode: navigate
* sec-fetch-site: same-origin
* sec-fetch-user: ?1
* upgrade-insecure-requests: 1
* user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:105.0) Gecko/20100101 Firefox/105.0
### Session
%{"_csrf_token" => "tiF-QDrSdYKVbdJa08mN5xb-"}
Running the server with the "+S 1" flag makes a huge difference (the bug does not seem to happen with +S 2 or +S 4).
ev94
commented
1 year ago Hi,
I've encountered the same issue. It was due to inconsistent dependencies. I solved it by upgrading all the deps.
Environment
Elixir version (elixir -v): Erlang/OTP 24 [erts-12.2] [source] [64-bit] [smp:1:1] [ds:1:1:10] [async-threads:1] [jit] Elixir 1.13.4 (compiled with Erlang/OTP 24)
Phoenix version (mix deps): phoenix 1.6.12 (Hex package) (mix) locked at 1.6.12 (phoenix) 2d6cf558 ok
Operating system: Linux nixos 5.15.60 -NixOS
Expected behavior
after installing a new phoenix app with the 'phx.gen.auth' addition in dev mode: every GET request to 'http://localhost:4000/users/log_in' should respind with the login form
Actual behavior
in dev mode: repeated call to the 'http://localhost:4000/users/log_in' URl via GET throws sometimes but quite often the following error: