method_missing | Compose , sequence , and repeat Ruby methods | Code Quality library
kandi X-RAY | method_missing Summary
kandi X-RAY | method_missing Summary
The Method gem you’ve been waiting for. The method\_missing gem brings the functional tools you need to Ruby: method composition, sequencing, and repeating. These are useful for when you must combine methods, apply different methods to the same argument, or "grow" a method.
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Community Discussions
Trending Discussions on method_missing
QUESTION
i'm attempting to do some tests in RoR (ruby v2.6.8, rails v6.1.5): I want to create a devise based on an existing database with existing user table (called Account, with capitalized A). I managed to execute the first steps to migrate the columns needed by Devise but i get stuck when i try to signup:
...
ANSWER
Answered 2022-Apr-14 at 16:56Simplest way is to just do an alias_attribute
.
That will delegate :email
and :email=
to :Email
and :Email=
.
QUESTION
This is my first time working on Adding a back-end with Active Admin. The user side of my rails app http://localhost:3000/colleges is working fine but in my admin section http://localhost:3000/admin/colleges it's bringing up the following error. I have tried some solutions from stack overflow but no answer is relating to my error so far.
...ANSWER
Answered 2022-Mar-13 at 14:18I had disabled config.active_record.migration_error = :page_load
in config/environment.rb
file, hence pending migration error could not be shown.I ran rake db:migrate:status
and some of my migrations were pending. I figured out the error was being caused by the ratyrate gem and I fixed using the following solution Ruby on Rails: ratyrate gem table already exists?.
QUESTION
I am learning the basics of Rails by creating a simple blog app, as per this guide - https://guides.rubyonrails.org/v6.1/getting_started.html
When I try to run the server using ruby bin\rails server
, the server successfully starts on localhost:3000
, but I get the following error when I open it in browser:-
ANSWER
Answered 2022-Feb-28 at 05:40Solution:-
Apparently, there was a conflict with the version. As Abhinay mentioned in the comment, I switched to Ruby 2.7.5, and the app started working.
QUESTION
Seeing some odd behavior that I can't quite explain when using Resque with Redis for async jobs. When a job fails, the method report_failed_job
throws an exception stating that the command "exists?" does not exist. Has anyone else run into this issue before?
Resque 1.27.4
Redis 3.3.5
ANSWER
Answered 2022-Feb-24 at 16:25resque-retry-1.7.6
is using the Redis.exists?
method here, but this requires redis>=4
. You can downgrade to resque-retry-1.7.5
or upgrade to redis>=4
.
QUESTION
I am trying to Tweet from my Rails App (7.0.1), Ruby (3.0.2). I am using the "twitter" gem and others to connect the Twitter account and publish to Twitter. Everything works fine as long as I am Tweeting text only. The Text is from "Model.content".
There is another "Model.media" that is an attachment with "has_one_attached" which I want to use for the media upload to Twitter. It is stored in AWS S3.
This is the how to Tweet text using the gem (just "content" and not "Model.content" because I am tweeting from the Model.rb itself):
client.update(content)
It works and posts to Twitter fine.
To Tweet with media I can do it like that this according to the gem:
client.update_with_media(content, media)
The errors I am getting from the Rails logs are:
/Users/~/.rbenv/versions/3.0.2/lib/ruby/gems/3.0.0/gems/activesupport-7.0.1/lib/active_support/core_ext/module/delegation.rb:307:in `method_missing': undefined method `merge' for #> (NoMethodError)
If I try this:
client.update_with_media(content, Rails.application.routes.url_helpers.rails_blob_path(media, only_path: true))
The errors I am getting from the Rails logs are (same happens for .jpeg):
/Users/~/.rbenv/versions/3.0.2/lib/ruby/gems/3.0.0/gems/twitter-7.0.0/lib/twitter/rest/upload_utils.rb:40:in `append_media': undefined method `eof?' for "/rails/active_storage/blobs/redirect/....mp4":String (NoMethodError)
I tried and looked for many solutions, they weren't specifically for this issue if I understand correctly. I feel I am missing a really small thing.
What is the best approach for this issue and how?
Links: Gem link: https://rubygems.org/gems/twitter
Gem quick guide: https://github.com/sferik/twitter/blob/master/examples/Update.md#update
...ANSWER
Answered 2022-Feb-21 at 20:58According to the docs, media
must be either a File
or an array of File
s. This method doesn't support direct uploads so you have to download the file from S3 first and then upload it to twitter.
rails_blob_path
returns a string and that's why it doesn't work. Also, this path is relative to your application domain, so you can't directly use it to reference files on your filesystem.
ActiveStorage has an open
method that yields a Tempfile
. Fortunately they behave just like regular File
s so you should be able to pass it to update_with_media
. You can use it like so:
QUESTION
When I write method_missing
in a custom class I am not sure if I can implement it def method_missing(meth, *args, **kwargs, &block)
or just def method_missing(meth, *args, &block)
. (The docs for method_missing do not cover keyword arguments.) How are keyword parameters handled in missing_method
?
(N.B. This is mentioned in a comment on the question In Ruby is there a built-in method that requires keyword arguments?, but the answer does not cover the question in the comment.)
...ANSWER
Answered 2022-Jan-31 at 10:58method_missing
works just like any other method in this regard. When you use a double splat it will slurp any keyword arguments and kwargs
will always be a hash:
QUESTION
We can read into the elasticsearch-ruby CHANGELOG (Vewsion 7.7.0) That we have New API Endpoints availables. Transforms included. Here they are.
We are using elasticsearch-ruby 7.15.0. But don't know how to use it.
Here is my example...
...ANSWER
Answered 2021-Nov-03 at 08:53The elasticsearch-xpack gem was deprecated and its endpoints (like those under the transform namespace) were merged into elasticsearch-api, but only for main and the 8.x version. In 7.x versions of the client, you still need to install and require the elasticsearch-xpack gem. You can see the code here for 7.15.
So you need to do something like:
QUESTION
I'd like to use the upsert_all method to insert (and update) record from a collection in a simple query, for example:
...ANSWER
Answered 2021-Oct-28 at 17:05upsert_all
expect an array of hashes, not ActiveRecord objects:
QUESTION
I have a class that loads a collection and loads items into a collection based on a certain criteria
...ANSWER
Answered 2021-Oct-01 at 09:11There are two issues with your method_missing
implementation:
The method name is given as a symbol, not as a string:
QUESTION
So I'll have something like...
MyClassname.find_by_name("email")
If I command + click find_by_name my rubymine tells me "method_missing" as it is not a RAILS method, It's a method in Ruby. So Is it possible to configure my Rubymine to navigate to BOTH rails and ruby methods?
...ANSWER
Answered 2021-Aug-28 at 06:00Your MyClassname::find_by_name
is Rails method, not pure Ruby method. But it is defined dynamically
And yes, this method is really missing :) This way it works
I think that it is worth mentioning this in more detail to make it clearer
Please look example in Ruby docs:
https://ruby-doc.org/core/BasicObject.html#method-i-method_missing
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Install method_missing
On a UNIX-like operating system, using your system’s package manager is easiest. However, the packaged Ruby version may not be the newest one. There is also an installer for Windows. Managers help you to switch between multiple Ruby versions on your system. Installers can be used to install a specific or multiple Ruby versions. Please refer ruby-lang.org for more information.
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