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javax.faces.application.ViewExpiredException: View could not be restored

... on which I logout, then I come back to first page and I click on any link etc or refresh page I get this exception. I guess it's normal (or maybe not:)) because I logged out and session is destroyed. What should I do to redirect user to for example index.xhtml or login.xhtml and save him from seein...
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Converting integer to string in Python

...to a.__str__() The same if you want to convert something to int, float, etc. share | improve this answer | follow | ...
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Should a Netflix or Twitter-style web service use REST or SOAP? [closed]

... that has an API supports "REST". Twitter and Netflix are two very high profile ones. The scary thing is that I can only think of one public API that is self-descriptive and there are a handful that truly implement the hypermedia constraint. Sure some sites like StackOverflow and Gowalla support lin...
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Explain “claims-based authentication” to a 5-year-old

...ing some sort of mechanism (username/password, client secret, certificate, etc.) and that gives you a token that proves you are who you say you are. Then, you trade that access token for an ID token. That process will use your identity to find and build a list of claims, sign it and then hand you ba...
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Difference between BYTE and CHAR in column datatypes

...could then be useful for bit flags (up to 8 settings), bitwise operations, etc. – Matt Borja May 7 '15 at 22:51 ...
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How to plot two columns of a pandas data frame using points?

...']) plt.show() # Depending on whether you use IPython or interactive mode, etc. and remember that you can access a NumPy array of the column's values with df.col_name_1.values for example. I ran into trouble using this with Pandas default plotting in the case of a column of Timestamp values with ...
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PHP - Get key name of array value

...array (sort($arr)) removes the key names, and resorts to the default 0,1,2,etc index values. So if you're sorting, use asort (asort($arr)). This maintains the key values. php.net/manual/en/function.asort.php – Rich701 Mar 9 '17 at 16:26 ...
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Redis connection to 127.0.0.1:6379 failed - connect ECONNREFUSED

...For me, I should specify the conf, so I type >> (sudo) redis-server /etc/redis/redis.conf – Romans 8.38-39 Jul 15 '14 at 5:57 4 ...
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CORS - What is the motivation behind introducing preflight requests?

...rticular HTTP verb", "Now I'll allow cookies/auth information to be sent", etc. This scenario benefits from the preflight mechanism. New servers that are written with an awareness of CORS. According to standard security practices, the server has to protect its resources in the face of any incoming r...
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How do you use bcrypt for hashing passwords in PHP?

...ver, if you have exhausted all your available sources (don't have OpenSSL, etc...) and your only fallback is mt_rand(), it is still better than the alternative (which is rand()). – Andrew Moore Jun 23 '13 at 1:08 ...