9,642 questions
1
vote
0
answers
104
views
Pulling schema updates from Postgres
I have few node microservices connected to single postgres db. I also have an elixir service for realtime message passing between BE and FE.
I am now enhancing realtime service with some additional ...
- 2,225
Advice
0
votes
1
replies
58
views
How can I pass the --no-validate-compile-env flag on the command-line?
I am getting this when trying to test my Elixir application:
$ mix test
** (Mix) the application :sweetsql has a different value set for key DBConnection during runtime compared to compile time. ...
- 4,698
0
votes
1
answer
115
views
Is there a way to have a global variable in elixir
I have this way to compare user accounts, to help prevent duplicates.
When I do the compare I pass in the two accounts, and the function returns 0 -> 1.0 where 1.0 is a perfect match. There is ...
0
votes
1
answer
96
views
How to specify a target module name to EEx.function_from_file
In my project I'm compiling templates into functions with EEx.function_from_file. The process is automated with the __using__ macro, the name of the function is the basename of the file while the name ...
- 1,349
1
vote
1
answer
155
views
How to get full PATH with asdf
I'm developing an LSP for the Elixir language.
The way it works at a high level is that it spawns a VM to build the user project, and I need to find the user's elixir executable to ensure the VM that ...
- 21
0
votes
2
answers
99
views
Phoenix handle event behaving different in terms of scope and immutability
Hi I have a elixir code which
defmodule Test do
def testScope do
biolink = %{}
biolink = biolink |> Map.put("slug","qweqw")
IO.inspect(biolink)
if true do
...
- 4,354
1
vote
0
answers
87
views
Elixir Phoenix Render Error per online Tutorial
I'm doing the basic getting started tutorial at the Elixir Phoenix website: https://hexdocs.pm/phoenix/request_lifecycle.html
I followed the instructions for creating a basic page via:
route
...
- 1,093
1
vote
1
answer
151
views
Phoenix LiveView - make current user available to whole view stack
I'm working on my first Elixir / Phoenix project, having spent my last decade in Rails, and I find myself missing something I'm to having easy access to.
Rails has a CurrentAttributes class, which ...
- 47k
0
votes
3
answers
177
views
Efficient way to calculate score from a list of scoring criteria and select the highest scoring option
I'm looking for a general algorithm or approach to solving this type of problem (a name or some keywords, I don't know what to Google for). I have a list of options. All of them are valid, but some ...
- 25.8k
0
votes
0
answers
97
views
Phoenix LiveView stream only shows first page of data; “Load more” inserts data but "terminates" websocket with KeyError :team_number not found
I'm still learning Phoenix LiveView and trying to make a simple paginated list of teams using stream/3. The first page loads and shows fine, but when I click a "load more" button to add more ...
- 19
2
votes
1
answer
298
views
Neovim+ElixirLS only working for one of my projects
I am currently playing around with Neovim and ElixirLS.
I have two very similar Phoenix projects, but the ElixirLS integration only works for one of them and I can't figure out what is the reason, ...
- 85
2
votes
0
answers
45
views
Connect to oracle db using proxy user in erlang
Please tell me how to connect using a proxy user, and is such a connection supported?
For example, user like “proxy_user[actual_user]”
ConnOpts = [
{host, Host},
{port, Port},
{user, “proxy_user[...
0
votes
0
answers
53
views
Locate position of specific text in an image of text in Elixir
I have an image of text, created this way:
image_of_text = Image.Text.simple_text!(
"This is some text with an [icon] surrounded by square brackets",
[ width: 500, height: 100, font_size:...
3
votes
0
answers
226
views
Why do I keep getting a 'nxdomain' error?
I can't figure out how to resolve this problem. I tried everything, but it does not work:
iex(2)> HTTPoison.get("google.com")
{:error, %HTTPoison.Error{reason: :nxdomain, id: nil}}
Even ...
- 31
0
votes
1
answer
75
views
How can I rigorously test an Elixir application that depends on both AMQP and AWS S3?
When I run mix test, the supervision tree declared in Application.ex attempts to start, which in turn attempts to start AMQP connections, but because the AMQP broker is unavailable in the test ...
0
votes
0
answers
53
views
How do we integrate Phoenix with MUX data?
I am trying to integrate monitor video.js in my Phoenix app.
https://www.mux.com/docs/guides/monitor-video-js#2-initialize-mux-data
I followed the mux docs from the above link. I did set up all things ...
- 31
-1
votes
2
answers
96
views
DataTables.net DOM overridden with Phoenix LiveView DOM render
Title
How to Integrate Phoenix LiveView with DataTables.js Without DOM Conflicts?
Versions
Phoenix: 1.5.7
LiveView: 0.15.7
DataTables.js: 1.11.4
Problem
I’m using Phoenix LiveView to render a ...
- 3,042
0
votes
1
answer
41
views
Plug.Conn.AlreadySentError in pow auth when trying to loggedin after email confirm
I am using pow package for auth. I am trying to logged in user after confirms email instead of redirecting login page.
This is controller callback method
def before_respond(PowEmailConfirmation....
1
vote
0
answers
85
views
Elixir Umbrella App: Oban Notification Not Properly Updating Product Cache Across Repos
I have umbrella app where i have two repos in witch one needs some data from second and that's why.And app here is just poc to check if it has any sense...
I am facing an issue with product cache ...
- 346
1
vote
1
answer
137
views
Dropdown Menu collapses when a menu item is clicked, but I want the menu to be expanded when a menu item is clicked
I have some dropdown menus in the side nav. When I click on a dropdown menu item, the dropdown menu collapses. It is a bit annoying for the user.
My app is built on phoenix framework. I also used ...
2
votes
1
answer
105
views
Elixir's formatter trying to remove structs. What is going on?
I've recently been shocked by formatter's suggestion to remove structs from some places, like:
{:keep_state, touch(%Data{data | booking: booking})}
formatter suggests following replacement:
{:...
- 1,198
0
votes
1
answer
137
views
How to add an associated object and validate both the child, and the length of the association?
I'm pretty new to Elixir, Phoenix and Ecto (much more comfortable with Rails), and I'm finding it hard to wrap my head around changesets and validations, especially when it comes to associated objects....
- 47k
1
vote
1
answer
518
views
Elixir mix: size_object: matchstate term not allowed
Elixir's mix build tool gives error running the command:
...> mix new tutorials
...\code> size_object: matchstate term not allowed
I first installed Erlang then Elixir (choco install elixir) ...
- 41
0
votes
0
answers
152
views
Is there a way in Ecto to make an autoincrement field that is not a PK?
I'm trying to implement a grouping of rows by a logical ID (edit history). But I cannot find anywhere in the docs where autoincrement is listed as a parameter except for the primary key field ...
- 3,225
1
vote
1
answer
75
views
Still, is tuple now a persistent data structure in Elixir or not?
Here, José Valim explicitly wrote that it isn't persistent.
But the official documentation here (5th para.) says otherwise, it seems.
I'm confused because I don't know how to check it myself yet. Can ...
- 11
0
votes
0
answers
59
views
Conditional Embedded Live Views
Hello does anybody know if embedded live views created via:
<%= live_render(@socket, EmbeddedLiveViewModule, id: "embedded") %>
can be run inside conditional flow like this:
<div :...
0
votes
2
answers
142
views
Elixir Phoenix Liveview Sorting Minefield Problem Navigating Render, Socket, Params
The image below is an app that I am working on and attempting to add a feature to.
https://imgur.com/a/f1dEP0E
Quick description of problem.
In the video below when I click the Hardware heading each ...
- 4,590
1
vote
1
answer
75
views
Elixir/Phoenix Testing Graphql Subscription ChannelCase and SubscriptionCase Set Up
For my elixir project I have a following subscription in my lib/graphql_user_web/schema/subscriptions/user.ex:
defmodule GraphqlUserWeb.Schema.Subscriptions.User do
use Absinthe.Schema.Notation
...
- 341
0
votes
2
answers
54
views
How to make a module depend on a behaviour?
Background
I am trying to write some code to exemplify the power of behaviours in Elixir.
As a result, I am trying to implement this diagram:
Basically, I have a Car module, which depends on a ...
- 17.9k
2
votes
3
answers
378
views
Why insert_all does not work with changesets?
Does someone know, what is the limitation in Ecto that the insert all is not made to be working with changesets? Usually I need to create change sets for all entries and then map them to normal map(at ...
- 1,387
1
vote
1
answer
164
views
Phoenix Liveview Sample App ThermostatLive not rendering variable correctly
I am trying to go through the tutorial app for Phoenix/Liveview.
Here are the versions used:
{:phoenix, "~> 1.7.14"},
{:phoenix_live_view, "~> 1.0.0-rc.1", override: true},
...
- 1,836
0
votes
1
answer
72
views
Elixir no match of right hand side value: :error from sweet_xml
I have this elixir code using ExAws to fetch metrics from Cloudwatch.
defp fetch_and_save_metrics do
end_time = DateTime.utc_now()
start_time = DateTime.add(end_time, -5 * 60, :second)
opts = [
...
- 177
0
votes
2
answers
74
views
How Can I Optimize String Splitting and Scoring Logic in Elixir? (Codewars Problem)
I’m currently learning Elixir (only been at it for about 2 weeks), and I’ve been working on a problem from Codewars where I need to:
1-Split a string into substrings separated by vowels (aeiou).
2-...
0
votes
1
answer
166
views
How do I use a registry within a supervision tree with child_spec name: {:via} syntax for other supervisor children?
I am learning elixir & I am struggling a bit with how to set up separate processes for data access & API routing while allowing them to communicate in a way that allows either process to fail ...
- 163
1
vote
1
answer
77
views
rsa signature in elixir mismatch with python code output
I have a python code for generating rsa signatures and I am trying to write this code in elixir.
python code:
import sys
import base64
import datetime
import json
from Crypto.PublicKey import RSA
from ...
- 1,053
0
votes
1
answer
180
views
Elixir Phoenix live reload with multiple css files
I make use of multiple css files in the website that I'm building, but I notice that live reload works only when I modify the app.css file, while I would like for it to also work with the other css ...
0
votes
1
answer
167
views
Ecto ArgumentError: "comparison with nil is forbidden" when querying for null field in Phoenix/Elixir
I'm getting an error in my Phoenix/Elixir application when searching for records where a DateTime field is null. Here's the error:
** (ArgumentError) comparison with nil is forbidden as it is unsafe. ...
- 306
1
vote
0
answers
50
views
handle_event receives form updates with duplicate parameters
I am trying to build a simple search screen using Phoenix/LiveView.
The screen is very simple: search bar + filters on the right-hand side. The filters are just multiple choice checkboxes.
A checkbox ...
- 11
0
votes
1
answer
205
views
AIError: failed to build tensor image: Tensor error: Unknown internal error: failed to decode u8
I am trying to use the cloudflare workers model, specifically the “llama-3.2-11b-vision-instruct”, but I am getting the following error:
AiError: AiError: AiError: Tensor error: failed to build tensor ...
0
votes
1
answer
67
views
Issue setting AWS ECS environment variables in runtime.exs with Elixir
I’m working on a project in Elixir that runs in a container deployed on AWS ECS. I’m trying to use environment variables to define the execution environment (ENVIRONMENT) and access them within my ...
- 21
0
votes
1
answer
59
views
How can I define the name of my id param in a Phoenix member route?
I have a users resource in my router with an extra endpoint for friends like so:
resources "/users", UserController, except: [:create, :delete] do
get "/friends", UserController, ...
0
votes
1
answer
116
views
File upload not saving files to folder
I've followed the Phoenix LiveView file upload code here https://hexdocs.pm/phoenix_live_view/1.0.0-rc.7/uploads.html and so far everything works just fine with no errors, the only thing I noticed is ...
- 4,393
0
votes
1
answer
87
views
Oban Error After OS Update: "expected :strategy option to be given
I recently updated my operating system, and now I'm facing this error when running my server. Previously, everything was working fine. Here's the error message:
(Mix) Could not start application main: ...
1
vote
1
answer
88
views
No function matching clause error when handling event
I have the following code in my simple LiveView form.
defmodule TodoappWeb.UserRegistrationLive do
alias Todoapp.Accounts
use TodoappWeb, :live_view
alias Todoapp.User
@impl true
def render(...
- 4,393
0
votes
1
answer
147
views
Is it idiomatic to use the `else` in `with` for the happy-path?
Our codebase contains existing functions to cast values into specific datatypes. I'm trying to leverage these functions to cast an input value of unknown target type into one of three datatypes (...
- 33
0
votes
1
answer
141
views
Phoenix server not accessible from other devices
I've a phoenix liveview app to try Liveview native which I want to connect to from my ipad.
I'm on linux so I allowed the access to the port 4000 with ufw, but the connection still failed in my ipad (...
- 29
-1
votes
2
answers
212
views
How to serve a different controller/liveviews from one route for different users roles
How can I define my Plug/Phoenix routes so that I have a single set of URLs, but show different content depending on what kind of user is logged in?
Eg, a user should visit /home and see a list of ...
0
votes
1
answer
53
views
--breakpoint flag changes the behaviour of mix test using bypass
Background
I am trying to do an integration test for a simple terminal application that I am writting.
This application is basically a Supervisor, which supervises other smaller libraries.
The ...
- 17.9k
1
vote
3
answers
181
views
Flatten one depth of list
I have a list nested inside another with a depth of 3.
[
[[1, 2, 3], [4, 5, 6]],
[[1, 2, 3], [4, 5, 6]]
]
After using List.flatten/1 my result is
[1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6]
I want to ...
0
votes
0
answers
68
views
Is it possible to define recursive entity structure with Elixir Spark?
defmodule Im.Dsl.Entities.ReceiveCmd do
def cmd(), do: %Spark.Dsl.Entity{
name: :rcv,
describe: "Receive command.",
target: Im.Commands.Receive,
...
...
- 5