Active Record Query Interface — Ruby on Rails Guides
This guide covers different ways to retrieve data from the database using Active Record. After reading this guide, you will know: How to find records using a variety of methods and conditions. How to specify the order, retrieved attributes, grouping, and other properties of the found records. How to use eager loading to reduce the number of database queries needed for data retrieval. How to use dy
ActiveRecord::ConnectionAdapters::TableDefinition
Ruby on Rails 7.2.1 Class ActiveRecord::ConnectionAdapters::TableDefinition < Object activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb Active Record Connection Adapters Table Definition Represents the schema of an SQL table in an abstract way. This class provides methods for manipulating the schema representation. Inside migration files, the t object in create_table
ActiveRecord Migrations Without Rails | Strange Symphonies
Continuing exploring ActiveRecord without Rails, I thought I’d look into using Migrations without Rails. Once again, why? You already are using ActiveRecord without Rails Versionable instances of how your database looked like Database agnostic You forget how to crack out SQL code (happens to me, maybe too much ORM) You want migrations in non Ruby Projects boredom One thing I’d like to emphasize is
danneu's blog
A Simple Blog with Sinatra and Active Record ( + some useful tools) ObjectiveSinatra is often suggested to newbies as an easy framework, but I imagine its lack of post-readme documentation makes it pretty daunting once you get past "Hello World". Doing something like hooking up a database is non-obvious, and writing glue code just isn't newbie friendly.This tutorial is extracted from a comprehensi
Sinatra: Building an ActiveRecord and Postgres application | Millwood Online Blog
Sinatra: Building an ActiveRecord and Postgres application Blog › Sinatra: Building an ActiveRecord and Postgres application Published on: 08 May 2013 by Tim Millwood Tags: activerecord, postgres, ruby, sinatra, Vote on HN Kindle As you may already know Sinatra is a great Ruby framework for building small web apps and APIs. Although it's very different to Ruby on Rails, there are sometimes cases
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searching records in rails include belongs_to or has_many
DataMapper - DataMapper
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