On Dec 17, 2010, at 10:58 AM, Marnen Laibow-Koser wrote:
"Gustavo de Sá Carvalho Honorato" <gustavohonorato wrote in post
#969077:
On Fri, Dec 17, 2010 at 12:55 PM, Marnen Laibow-Koser
<li...@ruby-forum.com>wrote:
"Gustavo de S Carvalho Honorato" <gustavohonorato wrote in post
#969047:
Hello,
What are the good practices to deploy an Rails database in
production?
It is
said that is unsafe to run database migrations in a production
database,
That's ridiculous. Where did you get that information?
Yes, I agree with you. It's very strange, but I saw this
information in
comments of generated schema.rb.
You're misinterpreting those comments.
# This file is auto-generated from the current state of the database.
Instead of editing this file,
# please use the migrations feature of Active Record to incrementally
modify
your database, and
# then regenerate this schema definition.
In other words, don't edit this file manually; let the schema dumper
do
it.
#
# Note that this schema.rb definition is the authoritative source for
your
database schema. If you need
# to create the application database on another system,
Note: *create* the application DB, not *update* it.
you should be
using
db:schema:load, not running
# all the migrations from scratch.
Note: *from scratch*. This only applies when you are creating the DB
for the first time.
The latter is a flawed and
unsustainable
approach (the more migrations
# you'll amass, the slower it'll run and the greater likelihood for
issues).
That is correct.
*BUT* if your migrations do anything that doesn't get captured into db/
schema.rb, then you need to either use :sql for the dump (db/
schema.sql) or you *DO* want to run all the migrations to initialize.
#
# It's strongly recommended to check this file into your version
control
system.
There is nothing here about not using migrations on the production
database once it's been created.
Best,
--
Marnen Laibow-Koser
http://www.marnen.org
mar...@marnen.org
--
Rob Biedenharn
r...@agileconsultingllc.com http://AgileConsultingLLC.com/
r...@gaslightsoftware.com http://GaslightSoftware.com/
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