If you encounter this error again after upgrading to 12.04 (or for people arriving here after googling the title of this page after upgrading to 12.04), the following worked for me: gem uninstall mysql2 gem install mysql2 This will recompile the gem using libmysqlclient18, and worked for me.
This is the expected behavior. I think David explains this the best himself, so here is a quote from Ruby, S., Thomas, D. & Hansson, D.H., 2009. Agile Web Development with Rails, Third Edition Third Edition., Pragmatic Bookshelf (p.330). When you use a finder driven by primary keys, you’re looking for a particular record. You … Read more
When redirecting use flash[:notice] = “This message value is available in next request-response cycle” When rendering use flash.now[:notice] = “Message is available in same request-response cycle” Info from here
it’s nilin Ruby, not null. And it’s enough to say if @objectname to test whether it’s not nil. And no then. You can find more on if syntax here: http://en.wikibooks.org/wiki/Ruby_Programming/Syntax/Control_Structures#if
Update: Some people report in the comments that this doesn’t work as of Rails 4.2.x.x. I haven’t tried it myself, so YMMV. Ah, finally figured out the simple solution – it accepts embedded Ruby: password: <%= ENV[‘APP_USER_POSTGRES_PASSWORD’] %>
Put the optional parts between parenthesis: map.show_book “/show_book/:name(/year/:year)”, :controller => “book”, :action => “show_version” and remove the second route. Update The above answer is only for rails 3 and above. Inverting the two routes definitions fixed the problem (see Alessandro’s comment below).
I just ran into this problem myself while trying to upgrade an older Rails app from REE 1.8.7 to 1.9.3-p385. Oddly, Ruby 1.9.3-p327 works just fine. What it came down to was ruby-1.9.3-p385 had installed RubyGems version 2.0.2 for me, and 1.9.3-p327 has RubyGems v1.8.23 installed. Gem.source_index has been deprecated for a while, but since … Read more
Just a note that the currently accepted answer is deprecated in Rails 3. You should do this instead: Comment.where(:created_at => @selected_date.beginning_of_day..@selected_date.end_of_day) Or, if you want to or have to use pure string conditions, you can do: Comment.where(‘created_at BETWEEN ? AND ?’, @selected_date.beginning_of_day, @selected_date.end_of_day)