arel | Generating a query with ARel | Machine Learning library

by nkallen Ruby Version: Current License: No License

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | arel Summary

arel is a Ruby library typically used in Artificial Intelligence, Machine Learning applications. arel has no vulnerabilities and it has low support. However arel has 1 bugs. You can download it from GitHub.

Generating a query with ARel is simple. For example, in order to produce.

Support

Quality

Security

License

Reuse

Support

arel has a low active ecosystem.

It has 262 star(s) with 445 fork(s). There are 4 watchers for this library.

It had no major release in the last 6 months.

There are 7 open issues and 5 have been closed. On average issues are closed in 24 days. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of arel is current.

Quality

arel has 1 bugs (0 blocker, 0 critical, 1 major, 0 minor) and 9 code smells.

Security

arel has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

arel code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

arel does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

arel releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

arel saves you 1864 person hours of effort in developing the same functionality from scratch.

It has 4112 lines of code, 274 functions and 124 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed arel and discovered the below as its top functions. This is intended to give you an instant insight into arel implemented functionality, and help decide if they suit your requirements.

Creates a new method with the given name .
Evaluate the relation
Creates a new relation .
Builds a SQL for the table .
Generate a SQL UPDATE statement .
Checks whether this object matches the expected value .

Get all kandi verified functions for this library.

arel Key Features

No Key Features are available at this moment for arel.

arel Examples and Code Snippets

No Code Snippets are available at this moment for arel.

Community Discussions

Trending Discussions on arel

Proper combination of Arel nodes for Query with Subqueries in Rails ActiveRecord

pass arguments to sql.squish

Bundler could not find rake in any of the resources

How to run "rails console" without nokogiri "cannot load such file -- nokogiri/nokogiri (LoadError)" error on Mac?

Create an ActiveRecord::Relation in rails 6 with a different table

Rails join query with array of children : get corresponding parents with "ALL" children, not "ANY"

AdapterNotSpecified deploying Rails app to Heroku using ClearDB for MySQL

Rails query - How to joins two tables on specific columns

Ruby on Rails access data through multiple joining tables

An error occurred while installing json (1.8.1) and Bundler cannot continue

QUESTION

Proper combination of Arel nodes for Query with Subqueries in Rails ActiveRecord

Asked 2021-Jun-04 at 17:06

I'm trying to achieve the SQL with subquery below using Arel

...

ANSWER

Answered 2021-Jun-04 at 11:47

Are you sure you can't achieve this without Arel?

Source https://stackoverflow.com/questions/67836479

QUESTION

pass arguments to sql.squish

Asked 2021-May-25 at 18:04

I want to use EXIST in my select request for having a "published" column depending of if the article was published in a book in a set of year.

So I do the following

...

ANSWER

Answered 2021-May-25 at 18:04

By interpolating the user input into a SQL query you're leaving yourself wide open for an SQL injection attack.

This is easy to prevent by using Arel to construct the query instead:

Source https://stackoverflow.com/questions/67691586

QUESTION

Bundler could not find rake in any of the resources

Asked 2021-May-23 at 12:27

Im running ruby version 2.6.1 with docker. Rake gem is version 13.0.1.
Whenever I tried docker-compose up, it always fails and throws this error everytime:
This error did not exist before.

...

ANSWER

Answered 2021-May-23 at 12:27

I'm not really sure what happened and why but I tried doing this on my rails container and I was no longer receiving the said error.

docker-compose run --rm bash
cd to project directory
bundle install

Source https://stackoverflow.com/questions/67656501

QUESTION

How to run "rails console" without nokogiri "cannot load such file -- nokogiri/nokogiri (LoadError)" error on Mac?

Asked 2021-Apr-13 at 18:30

I'm trying to build a Rails application on Mac OS Big Sur with the following versions ...

...

ANSWER

Answered 2021-Apr-13 at 18:30

From your ruby -v, I see that you are in an Intel x86 Mac, but the gem that your trying to build (nokogiri-1.11.3-arm64-darwin) is for new Mac ARM M1 chips. If this is the cause, it means your are using precompiled gems.

Try uninstalling the gem, specify that you don't want to use precompiled gems, and reinstall.

Source https://stackoverflow.com/questions/67079000

QUESTION

Create an ActiveRecord::Relation in rails 6 with a different table

Asked 2021-Mar-24 at 17:41

I am trying to upgrade partitioned gem in order to use partitioning with Rails 6.1 (I am upgrading an existing Rails application).
I have managed to get everything to work, except for one part:
In partitioned gem, in order to query the partitioned table,
they would create a new relation with the "correct" arel_table (i.e - the actual partition table we want to query).

The following syntax worked with Rails 3.2:

...

ANSWER

Answered 2021-Mar-24 at 17:41

After digging around in the source code of ActiveRecord,
I was able to solve it in the following way:

Source https://stackoverflow.com/questions/66747206

QUESTION

Rails join query with array of children : get corresponding parents with "ALL" children, not "ANY"

Asked 2021-Mar-22 at 17:49

I have this ActiveRecord query that gives me posts that contain any of the tags listed in tag_ids :

...

ANSWER

Answered 2021-Mar-22 at 17:49

Try this:

Source https://stackoverflow.com/questions/66747818

QUESTION

AdapterNotSpecified deploying Rails app to Heroku using ClearDB for MySQL

Asked 2021-Feb-09 at 15:13

I'm trying to revive an old Rails application I worked on several years ago. I'm using ruby 2.3.3 and rails 3.2.15 on the Heroku-16 stack with ClearDB for my MySQL database with the mysql2 adapter. When deploying to Heroku it succeeds on the deploy but crashes when it tries to start the app.

Full stack trace from the Heroku log (updated after fixing activerecord-import gem version per suggestion in first answer):

...

ANSWER

Answered 2021-Feb-09 at 01:07

Looks like you're running into compatibility issues trying to use the latest version of the activerecord-import gem at the time of writing (released in October 2020) with activerecord 3.2.22.5 (released in September 2016). You do mention it's a rails 3.2.15 app but you're not using activerecord 3.2.15 which is confusing.

Try using activerecord-import 0.4.1 (released in July 2013) and activerecord 3.2.15 which should be compatible with rails 3.2.15.

Source https://stackoverflow.com/questions/66096212

QUESTION

Rails query - How to joins two tables on specific columns

Asked 2020-Dec-25 at 12:26

I have a model(OwnershipTransfer) with two columns that are belongs_to to another model(Account):

...

ANSWER

Answered 2020-Dec-21 at 18:41

Breaking the parts out for clarity.

The tables involved...

Source https://stackoverflow.com/questions/65397765

QUESTION

Ruby on Rails access data through multiple joining tables

Asked 2020-Nov-26 at 09:01

I have 5 tables (simplest reduction) with 3 tables in the middle.

...

ANSWER

Answered 2020-Nov-26 at 09:01

I eventually created a def calling to the Result object inside the Chart model:

in chart.rb:

Source https://stackoverflow.com/questions/64789334

QUESTION

An error occurred while installing json (1.8.1) and Bundler cannot continue

Asked 2020-Oct-13 at 11:37

when I try to run bundle install , I got the following error:

...

ANSWER

Answered 2020-Oct-13 at 11:37

Try updating your Gemfile to use json@1.8.2 instead of 1.8.1 - according to this thread Ruby 2.2.x is incompatible with json 1.8.1.

1.8.2 should be functionally similar and not affect any of your other dependencies.

You can also run bundle update json to let bundler try to fix it for you - but that may put you at a much later version than 1.8.2, I'm not sure.

No harm in trying a couple things and reverting your changes.

Source https://stackoverflow.com/questions/64330031

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install arel

You can download it from GitHub.
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.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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