# Rake -T is missing rake db:fixtures:dump?

**URL:** <https://www.ruby-forum.com/t/rake-t-is-missing-rake-dbdump/72514>\
**Category:** Rails\
**Created:** [October 17, 2006, 7:25pm UTC](https://www.ruby-forum.com/t/rake-t-is-missing-rake-dbdump/72514 "2006-10-17T19:25:45Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![jfoxny](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/a6a055/32.png) [@jfoxny](https://www.ruby-forum.com/u/jfoxny)\
**Post date:** [October 17, 2006, 7:25pm UTC](https://www.ruby-forum.com/t/rake-t-is-missing-rake-dbdump/72514/1 "2006-10-17T19:25:45Z")

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Subject says it all: rake doesn’t know about db:fixtures:dump. When I  
try, I get this:

Don’t know how to build task ‘db:fixtures:dump’

I thought this was a standard feature that ships with rake- any idea  
why it’s missing, and how I can reinstall it?

Here’s the environment:

Ruby version 1.8.4 (powerpc-darwin8.6.0)

RubyGems version 0.8.11

Rails version 1.1.6

Active Record version 1.14.4  
Action Pack version 1.12.5

Action Web Service version 1.1.6

Action Mailer version 1.2.5

Active Support version 1.3.1

Application root [snip]  
Environment development

Database adapter mysql

Database schema version 28

Thanks!

-Jason

–  
Jason F. - jfrankov at pobox dot com

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<div class="post-metadata">

**Author:** ![jfoxny](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/a6a055/32.png) [@jfoxny](https://www.ruby-forum.com/u/jfoxny)\
**Post date:** [October 17, 2006, 9:14pm UTC](https://www.ruby-forum.com/t/rake-t-is-missing-rake-dbdump/72514/2 "2006-10-17T21:14:17Z")

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Jason F. wrote:

> Subject says it all: rake doesn’t know about db:fixtures:dump. When I  
> try, I get this:
> 
> Don’t know how to build task ‘db:fixtures:dump’

A Google search for db:fixtures:dump found  
[http://svn.t-p-l.com/rails/plugins/db\_to\_fixtures/README](http://svn.t-p-l.com/rails/plugins/db_to_fixtures/README) as the first  
hit. So, I expect you need to install the db\_to\_fixtures plugin from  
[http://svn.t-p-l.com/rails/plugins/db\_to\_fixtures/](http://svn.t-p-l.com/rails/plugins/db_to_fixtures/)

Jon

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<div class="post-metadata">

**Author:** ![jfoxny](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/a6a055/32.png) [@jfoxny](https://www.ruby-forum.com/u/jfoxny)\
**Post date:** [October 18, 2006, 1:57pm UTC](https://www.ruby-forum.com/t/rake-t-is-missing-rake-dbdump/72514/3 "2006-10-18T13:57:43Z")

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Hi Jason,

On 18 Oct 2006, at 02:10, Jason F. wrote:

> I found that same link, thanks. If that’s what it takes to get this  
> working, that’s fine; but I still don’t know why some 1.1.6 Rails  
> installations have this and two that I’ve run across don’t. It’s  
> considered a standard feature and is mentioned in the Agile book as  
> such.  
> Plus the date on the plugin says it was released 8/21/06, and I know  
> I’ve used it before then 🙂
> 
> I’m very confused. What other “standard” rails features might decide  
> to just not be there too?

I’ve got both the first and second editions of the AWDWR book as PDF,  
and neither of them mention db:fixtures:dump. Also I think if it was  
a standard Rails feature, it would appear in a lot more than 3  
results when you Google it.

I’m using the manage\_fixtures plugin, which provides  
db:fixtures:export\_all - maybe that’s what you previously used?

(from the README:)  
= INSTALLATION

[%] script/plugin discover  
[%] script/plugin install manage\_fixtures

(in case you wanted to give it a try).

If you still have access to a system with a version of rails where  
db:fixtures:dump works, it might be worth grepping through your  
project directory (particularly vendor/plugins and lib/tasks) to see  
if you can work out how it’s doing it.

Jon

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<div class="post-metadata">

**Author:** ![jfoxny](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/a6a055/32.png) [@jfoxny](https://www.ruby-forum.com/u/jfoxny)\
**Post date:** [October 18, 2006, 3:13am UTC](https://www.ruby-forum.com/t/rake-t-is-missing-rake-dbdump/72514/4 "2006-10-18T03:13:11Z")

</div>

I found that same link, thanks. If that’s what it takes to get this  
working, that’s fine; but I still don’t know why some 1.1.6 Rails  
installations have this and two that I’ve run across don’t. It’s  
considered a standard feature and is mentioned in the Agile book as  
such.  
Plus the date on the plugin says it was released 8/21/06, and I know  
I’ve used it before then 🙂

I’m very confused. What other “standard” rails features might decide  
to just not be there too?

-Jason