New posts in activerecord

Join multiple tables with active records

sql ruby-on-rails activerecord

How does Rails ActiveRecord chain "where" clauses without multiple queries?

ruby-on-rails activerecord

ActiveRecord::StatementInvalid: PG InFailedSqlTransaction

ruby-on-rails postgresql activerecord rollback pg

Rails: what does schema.rb do?

ruby-on-rails activerecord

Grouping WHERE clauses in Codeigniter

php mysql codeigniter activerecord

Rails - Best-Practice: How to create dependent has_one relations

ruby-on-rails ruby activerecord ruby-on-rails-3 associations

ActiveRecord: How to get all attributes of a model that can be mass-assigned?

ruby-on-rails activerecord

"Order by" result of "group by" count?

ruby-on-rails ruby-on-rails-3 activerecord sql-order-by

COUNT / GROUP BY with active record?

codeigniter activerecord count group-by

Correct datatype for latitude and longitude? (in activerecord)

ruby-on-rails activerecord types

Remove duplicate records based on multiple columns?

ruby-on-rails-3 activerecord duplicates destroy

How to add an ORDER BY clause using CodeIgniter's Active Record methods?

php codeigniter select activerecord sql-order-by

Best practice about empty belongs_to association

ruby-on-rails ruby activerecord

Regular expressions with validations in RoR 4

ruby-on-rails ruby activerecord

Update one column to value of another in Rails migration

ruby-on-rails activerecord migration timestamp

How do i specify and validate an enum in rails?

ruby-on-rails validation activerecord

How to query a model based on attribute of another model which belongs to the first model?

ruby-on-rails activerecord active-record-query

What exactly is Arel in Rails 3.0?

ruby-on-rails ruby activerecord arel

LEFT OUTER joins in Rails 3

ruby-on-rails ruby activerecord

Using ActiveRecord, is there a way to get the old values of a record during after_update

ruby-on-rails activerecord model callback