ActiveRecord
The core ORM component of the Ruby on Rails framework. It uses metaprogramming techniques such as method_missing to dynamically generate hundreds of query methods at runtime, making it a representative example of the challenges involved in navigating and statically analyzing Ruby codebases.
Timeline (last 90 days)
Rails database queries can produce N+1 problems; for example, iterating over 100 users and reading each one's articles triggers 1 user query plus 100 article queries.
ActiveRecord is the ORM layer built into Rails, providing capabilities such as migrations, associations, chained query APIs, callbacks, and validations.
The nesting of Rails' ActiveRecord::Base.transaction is likewise implemented under the hood via SAVEPOINT.
ORMs built into mainstream frameworks include Django's ORM, Rails' ActiveRecord, and Laravel's Eloquent.
ActiveRecord's instrumentation intercepts SQL queries and automatically creates Spans containing attributes such as db.system, db.statement, and db.name.
ORM frameworks such as Hibernate, Entity Framework, Django ORM, and ActiveRecord allow developers to operate databases in an object-oriented manner, mapping tables to classes and rows to objects.
All Facts (6)
Rails database queries can produce N+1 problems; for example, iterating over 100 users and reading each one's articles triggers 1 user query plus 100 article queries.
50%UnverifiedActiveRecord is the ORM layer built into Rails, providing capabilities such as migrations, associations, chained query APIs, callbacks, and validations.
50%UnverifiedThe nesting of Rails' ActiveRecord::Base.transaction is likewise implemented under the hood via SAVEPOINT.
50%UnverifiedORMs built into mainstream frameworks include Django's ORM, Rails' ActiveRecord, and Laravel's Eloquent.
50%UnverifiedActiveRecord's instrumentation intercepts SQL queries and automatically creates Spans containing attributes such as db.system, db.statement, and db.name.
50%UnverifiedORM frameworks such as Hibernate, Entity Framework, Django ORM, and ActiveRecord allow developers to operate databases in an object-oriented manner, mapping tables to classes and rows to objects.
50%