I've reinstalled my server and I am getting these messages: 28 Answers 28 ...

...o temporarily go back to it, fool around, then come back to where you are, all you have to do is check out the desired commit: # This will detach your HEAD, that is, leave you with no branch checked out: git checkout 0d1d7fc32 Or if you want to make commits while you're there, go ahead and make a n...

... os.rename(), shutil.move(), or os.replace() All employ the same syntax: import os import shutil os.rename("path/to/current/file.foo", "path/to/new/destination/for/file.foo") shutil.move("path/to/current/file.foo", "path/to/new/destination/for/file.foo") os.replace("p...

...he "date" attribute. sum("Sales") as "Sales" : The SUM() function adds up all the "Sales" values, and supplies a case-sensitive alias, with the case sensitivity maintained by using double-quotes. group by 1,2 : The GROUP BY function must contain all columns from the SELECT list that are not part o...

...dar to overcome some shortcomings in the way OCUnit works for us. Specifically, we wanted to be able to use the debugger in tests, to run tests from the command line and in CI builds, and get useful text output of test results. These things may be more or less useful to you. Long answer Deciding...

...order(..) or something like that. # In your example it is: Author.all, # then you should specify methods for generating options :id, # this is name of method that will be called for every row, result will be set as key :name_with_initial, # this is name of method that will be ...

...ge is fully loaded, and as such, before jQuery is fully loaded. First of all, ensure, what script is call properly, it should looks like <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js" type="text/javascript"></script> and shouldn't have attributes async...

... test (up to and including -prune) will return false for the stuff you actually want (ie: the stuff you don't want to prune out). Here's an example: find . -name .snapshot -prune -o -name '*.foo' -print This will find the "*.foo" files that aren't under ".snapshot" directories. In this example, -na...

...em you are encountering is how to save state across several Activities and all parts of your application. A static variable (for instance, a singleton) is a common Java way of achieving this. I have found however, that a more elegant way in Android is to associate your state with the Application con...

...truct vector { void swap(vector&) { /* swap members */ } }; Naturally, then, our class should too, right? Well, not really. The standard library has all sorts of unnecessary things, and a member swap is one of them. Why? Let's go on. What we should do is identify what's canonical, and w...