How I can do or generate a migration with a foreign key? I have municipios table, and I want to relate with the t开发者_如何学JAVAable ciudades, the table will have these fields: nombre_id (name id),
I want to define primary key id as below in my 开发者_开发百科tables through rails migration id INT(10) UNSIGNED NOT NULL AUTO_INCREMENT
Is it possible to create (self.up) multiple tables in one rails three migration.If this is possible, what is the conventional wisdom on using such an approach.Something tells me i开发者_StackOverflow中
I generated a migration that adds a column called encrypted_password to the users table present in my databse. This was generated automatically by rails using the command:
Right now my products model has a string column of category, with the form having a select which gets its values from an array in the product model. Right now there are only three possible categories:
I have a rake task that won\'t work unless a table exists. I\'m working with more than 20 engineers on a website so I want to make sure they have migrated the table before they can do a rake task whic
I have the following migration: class UniqueIndexOnCustomValueKeys < ActiveRecord::Migration def self.up
Hello fellow developers! Recently I\'ve been playing with Rails 3.0 and after quite a bit of research I\'m kinda stuck.
Let\'s say there\'s active development in both my main branch (devlop) and my feature branch. Both are adding migrations now and again. Before merging the feature branch into the main branch, I\'m goi
I need to move some columns from one existing table to another.How do I do it using a rails migration?
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