All Rails Activerecord Solutions on Gang of Coders

Total of 59 Rails Activerecord Solutions

Ruby on Rails generates model field:type - what are the options for field:type?

Ruby on-RailsGeneratorRails Activerecord

ActiveRecord::SubclassNotFound: The single-table inheritance mechanism failed to locate the subclass

Ruby on-RailsInheritanceRails Activerecord

Add nullable foreign key in Rails

Ruby on-RailsRubyRuby on-Rails-4Rails ActiverecordRuby on-Rails-4.2

Float vs Decimal in ActiveRecord

Ruby on-RailsTypesFloating PointDecimalRails Activerecord

Cascade delete in Ruby ActiveRecord models?

Ruby on-RailsRails ActiverecordDatabase Relations

ActiveModel::ForbiddenAttributesError when creating new user

Ruby on-RailsRails Activerecord

How to express a NOT IN query with ActiveRecord/Rails?

Ruby on-RailsRails Activerecord

ActiveRecord: size vs count

Ruby on-RailsRubyRuby on-Rails-3Rails Activerecord

Understanding :source option of has_one/has_many through of Rails

Ruby on-Rails-3Rails Activerecord

Validate uniqueness of multiple columns

Ruby on-RailsRuby on-Rails-3ValidationActiverecordRails Activerecord

Rails - Nested includes on Active Records?

Ruby on-RailsRails Activerecord

Rails ActiveRecord date between

Ruby on-RailsRails ActiverecordRuby on-Rails-2

ActiveRecord OR query

Ruby on-RailsRuby on-Rails-3Rails Activerecord

Check if a table exists in Rails

Ruby on-RailsRubyRails ActiverecordRails Migrations

Combine two ActiveRecord::Relation objects

Ruby on-RailsRails ActiverecordArel

Add timestamps to an existing table

Ruby on-RailsRubyRails ActiverecordRails Migrations

Rails: Using greater than/less than with a where statement

Ruby on-RailsActiverecordRails Activerecord

Rails: validate uniqueness of two columns (together)

Ruby on-RailsRuby on-Rails-3Ruby on-Rails-4ActiverecordRails Activerecord

Random record in ActiveRecord

Ruby on-RailsRandomRails Activerecord

Rails extending ActiveRecord::Base

Ruby on-RailsExtendRails Activerecord

Rails 3 datatypes?

Ruby on-RailsRubyRuby on-Rails-3Rails Activerecord

find vs find_by vs where

Ruby on-RailsRails ActiverecordDynamic Finders

How to chain scope queries with OR instead of AND?

Ruby on-RailsRuby on-Rails-3ActiverecordRails Activerecord

How can I avoid running ActiveRecord callbacks?

Ruby on-RailsRubyRails Activerecord

How to change default timezone for Active Record in Rails?

Ruby on-RailsRubyTimezoneRails Activerecord

scopes with lambda and arguments in Rails 4 style?

Ruby on-Rails-4ScopeRails Activerecord

What is the difference between pluck and collect in Rails?

Ruby on-RailsRubyRails Activerecord

How to get record created today by rails activerecord?

Ruby on-RailsDateRails Activerecord

Rails 5: ActiveRecord OR query

Ruby on-RailsRubyActiverecordRuby on-Rails-5Rails Activerecord

How can I overwrite a getter method in an ActiveRecord model?

Ruby on-RailsRubyRails ActiverecordGetter Setter

ActiveRecord find and only return selected columns

Ruby on-RailsRuby on-Rails-3Rails Activerecord

ActiveRecord where field = ? array of possible values

Ruby on-RailsRails Activerecord

Deprecation warning when using has_many :through :uniq in Rails 4

Ruby on-RailsActiverecordRails ActiverecordRuby on-Rails-4

Changing a column type to longer strings in rails

Ruby on-RailsStringPostgresqlRuby on-Rails-3.1Rails Activerecord

Rails migrations: self.up and self.down versus change

Ruby on-RailsMigrationRails ActiverecordRails Migrations

What is the easiest way to duplicate an activerecord record?

Ruby on-RailsRubyRails Activerecord

Rails: How can I set default values in ActiveRecord?

Ruby on-RailsRails Activerecord

LEFT OUTER JOIN in Rails 4

SqlRuby on-RailsRuby on-Rails-4Rails ActiverecordMysql2

Rails 4: List of available datatypes

Ruby on-RailsRubyRuby on-Rails-4Rails Activerecord

How do you write a migration to rename an ActiveRecord model and its table in Rails?

Ruby on-RailsMigrationRails Activerecord

How do I get the name of a Ruby class?

Ruby on-RailsRubyRails Activerecord

How to skip ActiveRecord callbacks?

Ruby on-RailsRails Activerecord

Rolling back a failed Rails migration

MysqlRuby on-RailsRails ActiverecordRails Migrations

Rails update_attributes without save?

Ruby on-RailsRubyRuby on-Rails-3Ruby on-Rails-4Rails Activerecord

Rails: Access to current_user from within a model in Ruby on Rails

Ruby on-RailsRubySessionRails Activerecord

Connecting Rails 3.1 with Multiple Databases

Ruby on-RailsRubyRuby on-Rails-3Rails ActiverecordActiveresource

ActiveRecord Find By Year, Day or Month on a Date field

Ruby on-RailsRuby on-Rails-3ActiverecordRails Activerecord

ActiveRecord OR query Hash notation

Ruby on-RailsRuby on-Rails-4ActiverecordRails ActiverecordRuby on-Rails-5

Rails where condition using NOT NIL

Ruby on-RailsRails ActiverecordArel

Rails has_one :through association

Ruby on-RailsAssociationsRails ActiverecordRails Models

has_many, belongs_to relation in active record migration rails 4

Ruby on-RailsRails ActiverecordRuby on-Rails-4Rails Migrations

Rails :include vs. :joins

Ruby on-RailsRubyDatabaseJoinRails Activerecord

How do you delete an ActiveRecord object?

Ruby on-RailsRails Activerecord

Difference between Active Model, Active Record and Active Resource

Ruby on-Rails-3Rails ActiverecordActivemodelActiveresource

Does rename_column take care of indexes?

Ruby on-RailsRuby on-Rails-3ActiverecordRails ActiverecordDatabase Indexes

Add a reference column migration in Rails 4

Ruby on-RailsRuby on-Rails-4Foreign KeysRails ActiverecordRails Migrations

How to write SQL in a migration in Rails

SqlPostgresqlRuby on-Rails-3MigrationRails Activerecord

Ruby rails - select only few columns from the data base

Ruby on-RailsRubyRuby on-Rails-3Rails Activerecord

Ruby on rails - Reference the same model twice?

Ruby on-RailsRails ActiverecordRelationship