Ancestry
arel-helpers
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| Ancestry | arel-helpers | |
|---|---|---|
| 6 | 1 | |
| 3,681 | 401 | |
| - | - | |
| 5.8 | 0.0 | |
| about 2 months ago | over 1 year ago | |
| Ruby | Ruby | |
| MIT License | MIT License |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
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
arel-helpers
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Arable - object oriented way of building Arel queries
Is ActiveRecord::Base.[] taken? If not, it seems like it would be cleaner than defining class methods based on column names. I see now that arel-helpers does it like this.
What are some alternatives?
Closure Tree - Easily and efficiently make your ActiveRecord models support hierarchies
BabySqueel - :pig: An expressive query DSL for Active Record
Awesome Nested Set - An awesome replacement for acts_as_nested_set and better_nested_set.
mini_record - ActiveRecord meets DataMapper, with MiniRecord you are be able to write schema inside your models.
ActsAsTree - ActsAsTree -- Extends ActiveRecord to add simple support for organizing items into parent–children relationships.
Discard - 🃏🗑 Soft deletes for ActiveRecord done right
rails_or - Cleaner syntax for writing OR Query in Rails 5, 6. And also add #or support to Rails 3 and 4.
Ruby JSON Schema Validator - Ruby JSON Schema Validator
Mongoid Tree - A tree structure for Mongoid documents using the materialized path pattern
StoreModel - Work with JSON-backed attributes as ActiveRecord-ish models
counter_culture - Turbo-charged counter caches for your Rails app.
activerecord_json_validator - 🔩 ActiveRecord::JSONValidator makes it easy to validate JSON attributes against a JSON schema.