Comments on: Getting Started on Rails, Again http://www.thosecleverkids.com/blog/2008/02/23/getting-started-on-rails-again/ “What people forget is a journey to nowhere starts with a single step, too.” Sat, 19 Sep 2009 14:16:42 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Tom http://www.thosecleverkids.com/blog/2008/02/23/getting-started-on-rails-again/comment-page-1/#comment-30 Tom Sat, 23 Feb 2008 21:28:55 +0000 http://www.thosecleverkids.com/blog/2008/02/23/getting-started-on-rails-again/#comment-30 (Man this theme sucks. I need to fix that post-haste.) (Man this theme sucks. I need to fix that post-haste.)

]]> By: Tom http://www.thosecleverkids.com/blog/2008/02/23/getting-started-on-rails-again/comment-page-1/#comment-29 Tom Sat, 23 Feb 2008 21:28:20 +0000 http://www.thosecleverkids.com/blog/2008/02/23/getting-started-on-rails-again/#comment-29 Thanks András. I'm a bit cranky first thing in the morning and this was as much me venting as it was a complaint about Rails. I wouldn't be taking a third shot at it if I didn't think it had a lot to offer. The problem for me has been that I don't have any work that needs to get done in Rails, so I always just play around with it until I get frustrated. Hopefully this time I've found enough to do to keep me going. If nothing else, the post inspired your comment, which looks like it'll be a good resource for me and anyone else looking for a db primer. Thanks a lot for the comment and your patience. Thanks András. I’m a bit cranky first thing in the morning and this was as much me venting as it was a complaint about Rails. I wouldn’t be taking a third shot at it if I didn’t think it had a lot to offer. The problem for me has been that I don’t have any work that needs to get done in Rails, so I always just play around with it until I get frustrated. Hopefully this time I’ve found enough to do to keep me going.

If nothing else, the post inspired your comment, which looks like it’ll be a good resource for me and anyone else looking for a db primer. Thanks a lot for the comment and your patience.

]]> By: tarsolya http://www.thosecleverkids.com/blog/2008/02/23/getting-started-on-rails-again/comment-page-1/#comment-28 tarsolya Sat, 23 Feb 2008 17:17:15 +0000 http://www.thosecleverkids.com/blog/2008/02/23/getting-started-on-rails-again/#comment-28 What is exactly your problem? Scaffolding is a very easy to do stuff in Rails (1.x or 2.x, doesn't matter), but is not recommended. The "misanthropes" are right when they say that scaffolding is for the weak and you will not learn nor Ruby, nor Rails with that. > I’ll need to find the way to add indicies and > other db tuning info to the migrations. A little background: Migrations are for tracking database schema changes over time. They are evil, I don't like them either and never use them in production, but do schema dumps and loads. Onto your question: You can add indexes with the following command: # Simple index add_index :table, :field # Compound index add_index :table, [:field_1, :field_2, :field_3] # Unique index add_index :table, [:field_1, :field_2], :unique => true # Unique named index add_index :table, [:field_1, :field_2], :unique => true, :name => "my_unique_named_index" Migration Docs: http://api.rubyonrails.org/classes/ActiveRecord/Migration.html What you can do in a schema: http://api.rubyonrails.org/classes/ActiveRecord/ConnectionAdapters/SchemaStatements.html#M001158 No fields shown could be that you have to restart the server after doing database schema changes, there is no auto model reloading. Try to use Rails built-in script/generate or script/destory commands to create and delete various parts of the system. You can get help by typing: # script/generate --help # script/destroy --help You can migrate to various versions to you schema by issuing the following command, where x is the version of the migration schema (eg. 009 is 9) # rake db:migrate VERSION=x Also, there are a lot of handy rake tasks regarding databases. Do the following in Rails root: # You'll get all rake tasks rake -T # You'll get database related rake tasks rake -T | grep db Oh, the mysql gem is installed successfully, sometimes it barfs about the rdoc, but it's ok. It has nothing to do with your problem and if the warning is gone, you should be set. My advice is, don't get intimidated, don't use scaffolding, start small, read the api. Yeah and I don't like the Rails community either, lots of stupid snobs, but there are "a few good men" :) Cheers, András What is exactly your problem? Scaffolding is a very easy to do stuff in Rails (1.x or 2.x, doesn’t matter), but is not recommended.

The “misanthropes” are right when they say that scaffolding is for the weak and you will not learn nor Ruby, nor Rails with that.

> I’ll need to find the way to add indicies and
> other db tuning info to the migrations.

A little background:

Migrations are for tracking database schema changes over time. They are evil, I don’t like them either and never use them in production, but do schema dumps and loads.

Onto your question:

You can add indexes with the following command:

# Simple index
add_index :table, :field

# Compound index
add_index :table, [:field_1, :field_2, :field_3]

# Unique index
add_index :table, [:field_1, :field_2], :unique => true

# Unique named index
add_index :table, [:field_1, :field_2], :unique => true, :name => “my_unique_named_index”

Migration Docs:
http://api.rubyonrails.org/classes/ActiveRecord/Migration.html

What you can do in a schema:
http://api.rubyonrails.org/classes/ActiveRecord/ConnectionAdapters/SchemaStatements.html#M001158

No fields shown could be that you have to restart the server after doing database schema changes, there is no auto model reloading.

Try to use Rails built-in script/generate or script/destory commands to create and delete various parts of the system. You can get help by typing:

# script/generate –help
# script/destroy –help

You can migrate to various versions to you schema by issuing the following command, where x is the version of the migration schema (eg. 009 is 9)

# rake db:migrate VERSION=x

Also, there are a lot of handy rake tasks regarding databases. Do the following in Rails root:

# You’ll get all rake tasks
rake -T

# You’ll get database related rake tasks
rake -T | grep db

Oh, the mysql gem is installed successfully, sometimes it barfs about the rdoc, but it’s ok. It has nothing to do with your problem and if the warning is gone, you should be set.

My advice is, don’t get intimidated, don’t use scaffolding, start small, read the api.

Yeah and I don’t like the Rails community either, lots of stupid snobs, but there are “a few good men” :)

Cheers,
András

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