fast
Ancestry
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fast
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ASTs in Ruby - Node Pattern and Introducing RuboCop
Oh, and that regex bit? Remember how we have Rubular for regex? We have the NodePattern Debugger for ASTs which you will find incredibly helpful, in fact you might open it now and try out some of these examples to make sure I'm not pulling a Fast one. (No, I'm not apologizing for that one.)
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Future of Ruby – AST Tooling
Some of these tools have even already been wrapped, like Jonatas's work on FFast which works on top of NodePattern and some of RuboCop's previous work. Really the only things between us and this future is a bit more wrapping and polish, as well as integrations into something like VSCode.
Ancestry
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SQL help me please with multi nested childs
Making some guesses about what you’re trying to do, you’ll have to alter the table schema to do this efficiently. The ‘ancestry’ gem (https://github.com/stefankroes/ancestry ) can do the migration and update your parent_id-based data to enable all its cool features.
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Active record: how to recursively load children of children of children in one query?
Another gem that stores trees and can get a whole sub tree with one query is ancestry: https://github.com/stefankroes/ancestry
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Hierarchical data
Ancestry gem is what I always use for hiarichle data structures: https://github.com/stefankroes/ancestry If I understand what your looking for, it does pretty much exactly what you want.
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How to query Ancestry fast
Ancestry is a great library to organize models in a tree structure.
- Find all objects of a chain of associations on the same table
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26 most popular Ruby/Rails repositories on GitHub in July-August 2020
Ancestry is a gem that allows the records of a Ruby on Rails ActiveRecord model to be organized as a tree structure (or hierarchy). It employs the materialized path pattern and exposes all the standard tree structure relations (ancestors, parent, root, children, siblings, descendants), allowing all of them to be fetched in a single SQL query. 3,136 stars by now
What are some alternatives?
ruby-next - Ruby Next makes modern Ruby code run in older versions and alternative implementations
Closure Tree - Easily and efficiently make your ActiveRecord models support hierarchies
unparser - Turn Ruby AST into semantically equivalent Ruby source
Awesome Nested Set - An awesome replacement for acts_as_nested_set and better_nested_set.
ActsAsTree - ActsAsTree -- Extends ActiveRecord to add simple support for organizing items into parent–children relationships.
rails_or - Cleaner syntax for writing OR Query in Rails 5, 6. And also add #or support to Rails 3 and 4.
Mongoid Tree - A tree structure for Mongoid documents using the materialized path pattern
counter_culture - Turbo-charged counter caches for your Rails app.
pluck_all - A more efficient way to get data from database. Like #pluck method but return array of hashes instead.
BabySqueel - :pig: An expressive query DSL for Active Record
FriendlyId - FriendlyId is the “Swiss Army bulldozer” of slugging and permalink plugins for ActiveRecord. It allows you to create pretty URL’s and work with human-friendly strings as if they were numeric ids for ActiveRecord models.
arel-helpers - Useful tools to help construct database queries with ActiveRecord and Arel.