rails-migrations Examples and Free Source Code

Do I need a foreign key declaration in the individual table when creating join table?...

ruby-on-rails rails-migrations model-associations

How do I disable the migrations feature in a Rails app?...

ruby-on-rails oop database-design rails-activerecord rails-migrations

Rails 4: How to drop or remove (join) tables tables from database?...

ruby-on-rails-4 rails-migrations drop-table

RoR: database level referential integrity...

ruby-on-rails activerecord rails-migrations ruby-on-rails-4.2 ruby-on-rails-5

Why am I getting unknown column when the column exists?...

mysql ruby-on-rails rspec rails-migrations

Rails 3 Add Foreign Key in Migration Problems...

ruby-on-rails ruby-on-rails-3 rails-migrations

Rails 3, generate migration with foreign key...

ruby-on-rails ruby-on-rails-3 rails-migrations

rails length of complicated index...

ruby-on-rails ruby rails-migrations

Rails: Adding unique index with migration throws Mysql2::Error: BLOB/TEXT...

mysql ruby-on-rails ruby-on-rails-4 activerecord rails-migrations

Creating a Rails Migration to add a Friendly_id column (which is null) to a table with data...

ruby-on-rails rails-migrations friendly-id

Move data from removed column to just created one in Rails migration...

ruby-on-rails postgresql activerecord rails-migrations

Rails DB Migration can't add a foreign key...

ruby-on-rails rails-migrations

Rails3 Mysql2::Error: Unknown column - ActiveRecord::StatementInvalid...

ruby-on-rails-3 rails-migrations mysql2 mysql

Ruby on Rails with external database, issues with web requests...

ruby-on-rails ruby ruby-on-rails-3 postgresql rails-migrations

Getting Issue when running migration but through console its works...

ruby-on-rails-3 rails-migrations

Create first_name and last_name from full_name in a Rails migration...

sql ruby-on-rails postgresql rails-migrations

Is it possible to disallow 'null' for either one of two variables at the migration level?...

ruby-on-rails validation ruby-on-rails-4 migration rails-migrations

Why do Migrations and Seeds for Mountable Engines need to be explicitly Loaded?...

ruby-on-rails ruby rake rails-migrations rails-engines

When is a "down" migration useful?...

ruby-on-rails database-schema database-migration rails-migrations

Incorrect MySQL client library version! This gem was compiled for 5.5.37 but the client library is 5...

mysql ruby-on-rails rubygems rails-migrations ubuntu-15.04

Ruby on Rails purge old rows from database after a given amount of time...

ruby-on-rails ruby ruby-on-rails-4 rails-activerecord rails-migrations

Create a Users model where previous Users model existed then dropped...

ruby-on-rails rails-migrations

Rails Migration - PG::Error: ERROR: invalid input syntax for integer: ""...

ruby-on-rails postgresql activerecord ruby-on-rails-4 rails-migrations

How to get documentation from Rails generators about type modifiers...

ruby-on-rails documentation rails-migrations rails-generate

schema.rb doesnt include add_index method after migration using postgresql...

ruby-on-rails ruby postgresql railstutorial.org rails-migrations

Do I need a model to insert through IRB?...

ruby-on-rails rails-migrations

Rails ActiveRecord Migration ArgumentError...

ruby-on-rails ruby-on-rails-4 activerecord rails-migrations

Rails - one table with references to two other tables...

ruby-on-rails rails-migrations

Creating Join-Table with indexes in Rails...

ruby-on-rails database model rails-migrations

Why does Rails not add indices by default to a join table?...

ruby-on-rails indexing rails-migrations join