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Devise - How do I forbid certain users from signing in?
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Devise Wiki - How to customize user account status validation when logging in
– jaustin
Mar 17 '15 at 17:40
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shell init issue when click tab, what's wrong with getcwd?
...inal you remove that directory (from within a script or whatever). To get rid of this, in case your current directory was recreated in the meantime, just cd to another (existing) directory and then cd back; the simplest would be: cd; cd -.
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Memcache(d) vs. Varnish for speeding up 3 tier web architecture
... write -- Varnish will serve a lot of the pages for you, Memcache will provide info for pages that have a mixture of known and new data allowing you to generate pages faster.
An example that could apply to stackoverflow.com: adding this comment invalidated the page cache, so this page would have t...
Python argparse command line flags without arguments
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@Jdog, Any idea of why this doesn't work for me? The w is always False.
– Iulian Onofrei
Apr 12 '15 at 21:27
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Akka Kill vs. Stop vs. Poison Pill?
... answered Dec 12 '12 at 21:55
idonnieidonnie
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Are PostgreSQL column names case-sensitive?
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All identifiers (including column names) that are not double-quoted are folded to lower case in PostgreSQL. Column names that were created with double-quotes and thereby retained upper-case letters (and/or other syntax violations...
Why are local variables not initialized in Java?
...le and it should not take a default value. If the programmer, by mistake, did not initialize a local variable and it take default value, then the output could be some unexpected value. So in case of local variables, the compiler will ask the programmer to initialize with some value before they acces...
Compare two Byte Arrays? (Java)
..., which of course can never be true. In addition, array classes don't override .equals() so the behavior is that of Object.equals() which also only compares the reference values.
To compare the contents of two arrays, static array comparison methods are provided by the Arrays class
byte[] array =...
Define static method in source-file with declaration in header-file in C++
... methods in that class can access that static method, no other methods outside that class.
– ABV
May 12 '11 at 15:42
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Delete Local Folder in TFS
...ht choose to do this to conserve space on your local disk. If you later decide that you need to get files in those cloaked folders, you must change the status to Active and then perform a Get operation.
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