Where is sqlite3?

rubyonrails-talk
1

I just went through the first demo in the AgileWeb Development with Rails book, and it seems that a new dependency has broken the demo.

MissingSourceFile in SayController#hello

no such file to load -- sqlite3

RAILS_ROOT: /home/kenb/rails-projects/demo

2

I just used Synaptic to install package sqlite3 on my Ubuntu Gutsy Gibbon system, and I now have a sqlite3 command. But that doesn't change the behavior of the demo one bit. There is still a sqlite3 file missing.

3

I was wondering why Sqlite3 has been chosen as the default for Rails 2.0.2. What does it have over MySQL to warrant such a change?

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4

The #1 reason is that you don’t need to do anything

With SQlite3…

rails myproject cd myproject ruby script/generate scaffold project name:string description:text estimated_hours:decimal rake db:migrate

ruby script/server

There. You’re done. No creating permissions, users, databases, etc. No need to run an extra process (mysql) just to try something out. The database is a file, so its portable. I use it almost exclusively for the first phases of my projects because of its ease of use and portability. I recommend it highly and am just thrilled by the fact that it’s the new default.

Some may complain that there aren’t many good GUI tools for SQLite… but with migrations, tests, and script/console, that’s not an issue at all.

That’s my .02

5

Thanks Brian.

That’s interesting. I take it you only use it for the early stages of development and then switch to something like MySQL later?

Are there any changes you have to make to your source code to accommodate the switch?

Cheers

John

6

SQLite Manager 0.2.11 Homepage by Mrinal Kant

Manage any SQLite database on your computer.

Manage any SQLite database on your computer. An intuitive heirarchical tree showing database objects. Helpful dialogs to manage tables, indexes, views and triggers. You can browse and search the tables, as well as add, edit and delete the records. Facility to execute any sql query. A dropdown menu helps with the sql syntax thus making writing sql easier. Easy access to common operations through menu, toolbars, buttons and context-menu. Export tables/views in csv or xml format

<https://addons.mozilla.org/en-US/firefox/addon/5817&gt;

-Thufir

7

I spotted a Tk GUI recently too.

Most Rails developers would have been using Sqlite anyway in development and test modes. Its really fast, and its also very easy to run sqlite in memory too.

8

And then move on the next of many riddles posed in trying to follow AWDWR using Rails 2!

9

I am having sufficient trouble with sqlite3 that I have decided to revert back to rails 1.2.6 for the time being, and wait for the 2.0.2 install, dependency, and configuration problems to sort themselves out.

So, let me pose a new question: How do I uninstall Rails 2.0.2?