ninajansen.dk

In order to get a cache sweeper to actually do anything when it is triggered, it must be called from a controller, and that controller must be instantiated though a http request.
This is what I have learned from trying to expire fragment cache from background scripts in Ruby om Rails. It simply is not possible. [...]

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I use cache_fu for caching my rails application. I use a “fat models, skinny controllers strategy”. This means that my Author model has code like this:

def cached_books
get_cache(:author_books) do
Book.find_by_author_id(self.id)
end
end

This method caches all books belonging to an author. Cache fu does not cache belongs_to or has_(one|many) relationships, and that’s why we have this method. But this also [...]

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So i’ve been spending hours tracking this one down: I wanted to have cache sweepers in rails and followed the advice from railscasts and railsevny. Those tutorials tell you to put sweepers in an app/sweepers directory and add that directory to your load path. DON’T DO THAT. That simply did not work for me (using [...]

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So basically, the official plugin is old and cant really deal with restful routing. For some reason, when I used the url_for method in my views, the in place editor javascript function couldn’t interpret the (restful) route properly and sent a post request to ‘/controller/1/edit’ to an action named “1″ with an id set to [...]

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These might be completely obvious to everyone, but I found them useful:

If you want to migrate a specific database, you can do it by setting RAILS_ENV on the command line. Like this:
rake db:migrate RAILS_ENV=production
If you want to see all the rake tasks in your application with a description of what they do, execute:
rake [...]

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