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Setting environment variables on OS X

... extensive research and if you want to set variables that are available in all GUI applications, your only option is /etc/launchd.conf. Please note that environment.plist does not work for applications launched via Spotlight. This is documented by Steve Sexton here. Open a terminal prompt Type su...
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Rails 3 check if attribute changed

... Check out ActiveModel::Dirty (available on all models by default). The documentation is really good, but it lets you do things such as: @user.street1_changed? # => true/false share ...
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Optimise PostgreSQL for fast testing

...ta-integrity-protection and crash-safety stuff, giving it permission to totally trash your data if you lose power or have an OS crash. Needless to say, you should never enable fsync=off in production unless you're using Pg as a temporary database for data you can re-generate from elsewhere. If and ...
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What does the explicit keyword mean?

... The compiler is allowed to make one implicit conversion to resolve the parameters to a function. What this means is that the compiler can use constructors callable with a single parameter to convert from one type to another in order to get t...
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dynamic_cast and static_cast in C++

... Here's a rundown on static_cast<> and dynamic_cast<> specifically as they pertain to pointers. This is just a 101-level rundown, it does not cover all the intricacies. static_cast< Type* >(ptr) This takes the pointer in ptr and tries to safely cast it to a pointer of type Type...
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How to check if a string contains a substring in Bash

...egex in a bash script, this worked perfectly! – blast_hardcheese Feb 14 '12 at 5:10 114 The =~ op...
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How to create a self-signed certificate for a domain name for development?

...poses. My web application solution contains a web API etc, that I need to call from external systems, hence I am not using localhost. ...
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How to handle multiple cookies with the same name?

...nger paths are listed before cookies with shorter paths. NOTE: Not all user agents sort the cookie-list in this order, but this order reflects common practice when this document was written, and, historically, there have been servers that (erroneously) depended on this order. There i...
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download file using an ajax request

...n as your site. You could always make the AJAX request/window.location a fallback by using some JavaScript to test if download is supported and if not, switching it to call window.location. Original answer You can't have an AJAX request open the download prompt since you physically have to naviga...
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Mockito: Inject real objects into private @Autowired fields

...njectMocks private Demo demo; /* ... */ } Mockito will consider all fields having @Mock or @Spy annotation as potential candidates to be injected into the instance annotated with @InjectMocks annotation. In the above case 'RealServiceImpl' instance will get injected into the 'demo' For m...