marcin

marcin

Import except: [fun: arity] does not import macros

Hello, I would like to import Ecto.Query but without importing the update: 2 to the namespace.
I can use only to specify what i want to import:

import Ecto.Query, only: [from: 2, join: 4, where: 3, preload: 2, distinct: 2]

but using except would be shorter (and I would not have to learn arities by heart):

import Ecto.Query, except: [update: 2]

However, this seems to not import macros (for example, where was not imported.
i need to do:

import Ecto.Query, only: :macros
import Ecto.Query, except: [update: 2]

Is this the expected way import works? From the doc, it seemed to me only: and except: are complimentary.

Using:

  • Elixir 1.12.0 (compiled with Erlang/OTP 23)
  • Erlang/OTP 24 [erts-12.0.3] [source] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:1] [jit]

Most Liked

josevalim

josevalim

Creator of Elixir

The above, by itself, should import everything except update/2. I have tried it locally and I could observe this is correct and where was also imported. So double check your code and if the issue persists, can you please provide a file that reproduces the problem?

marcin

marcin

Ah, sorry my bad, I had a use OtherMod which would import Ecto.Query, only: [...fun list...], in which case my import Ecto.Query, except would exclude from that list (fun list imported in OtherMod) and not full Ecto Query list…

Where Next?

Popular in Questions Top

dotdotdotPaul
Okay, I'm having a heck of a time trying to figure out how to best handle the validation of belongs_to associations in Ecto. I'm sure I'...
New
SoCreat
i’m a new one to elixir which editor can i use vs code? or atom? Thanks! :smiley:
New
jononomo
I am trying to figure out how Mix knows whether the environment is test, dev, or prod -- where is this set? Thanks.
New
Jim
As a follow up to my earlier question: I have the code compiling and running but not getting a successful login from the rest server. ...
New
vertexbuffer
Hello, can anybody help here..? I have a list of players and I what to delete an element, but every for loop the list is reverting to ori...
New
mcarvalho
What is the difference between System.get_env and Application.get_env? For example, what are best practices to use one versus another.
New
rms.mrcs
Hi, I need to transform a list of numbers into a map where the keys are the indexes and the values are the original values of the list....
New
shahryarjb
Hello, I have map which I want to convert it to string like this: the map: %{last_name: "tavakkoli", name: "shahryar"} the string I ne...
New
jc00ke
Expanding on this topic: https://forum.elixirforum.net/t/map-typespec-question/19217 Let’s say I have a map with required and optional k...
New
lanycrost
Hi everyone! I need implement if…else if…else condition from my elixir code, and anymore of this control flow structures not work proper...
New

Other popular topics Top

JDanielMartinez
Hi! May someone helps me, please! I have two apps into an umbrella project: the first one is Database, which manages queries, and the se...
New
senggen
Erlang/OTP 25 [erts-13.2.2] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:1] 15:22:35.803 [error] gen_event {lager_file_backend...
New
itssasanka
Hi all, Trying to get some more clarity over utc_datetime and naive_datetime for Ecto: https://hexdocs.pm/ecto/Ecto.Schema.html#module-...
New
Jim
As a follow up to my earlier question: I have the code compiling and running but not getting a successful login from the rest server. ...
New
mgjohns61585
Could someone help me? I'm making my first elixir program, number guessing game. I can't figure out how to convert the user's guess from ...
New
msaraiva
Surface is an experimental library built on top of Phoenix LiveView and its new LiveComponent API that aims to provide a more declarative...
564 42633 214
New
ovidiubadita
Hey all, I discovered Elixir and I love it. I always wanted to learn a functional programming and I intended to go for Haskell, but afte...
New
Fl4m3Ph03n1x
About me? ( if you have nothing better to do than reading about some random guy in the internet :stuck_out_tongue: ) Hello all, this is ...
New
romenigld
I am trying to run a deploy with docker and I successfully runned with this command: docker build -t romenigld/blog-prod . but when I t...
New
aesmail
Hello guys, I have finally made it. I created an admin interface for a framework. It’s been on my todo list for years and with the curre...
New

We're in Beta

About us Mission Statement