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convert_tz returns null

...ving these files to a different location such as /usr/share/zoneinfo/.bak/ allows for the command mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root -p mysql to fully populate all of the expected timezone information. This may or may not be a bug in my installed version of MySQL: $ mysql -...
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ActionController::InvalidAuthenticityToken

...h were page cached. Pages got buffered with a stale authenticity token and all actions using the methods post/put/delete where recognized as forgery attempts. Error (422 Unprocessable Entity) was returned to the user. The solution for Rails 3: Add: skip_before_filter :verify_authenticity_token ...
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Get bitcoin historical data [closed]

...ocket in higher resolution over longer time period you could use script log_bitstamp_trades.py below. The script uses python websocket-client and pusher_client_python libraries, so install them. #!/usr/bin/python import pusherclient import time import logging import sys import datetime import sig...
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JavaScript: filter() for Objects

...rible things will happen to your code. Things will break. You're extending all object types, including object literals. Here's a quick example you can try: // Extend Object.prototype Object.prototype.extended = "I'm everywhere!"; // See the result alert( {}.extended ); // "I'm ev...
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How to get notified about changes of the history via history.pushState?

...); } // ... whatever else you want to do // maybe call onhashchange e.handler return pushState.apply(history, arguments); }; })(window.history); Your jsfiddle becomes: window.onpopstate = history.onpushstate = function(e) { ... } You can monkey-patch window.h...
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How do I pass multiple parameters into a function in PowerShell?

...h accepts more than one string parameter, the first parameter seems to get all the data assigned to it, and remaining parameters are passed in as empty. ...
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Pythonic way to combine FOR loop and IF statement

...>>> xyz = [0, 12, 4, 6, 242, 7, 9] >>> >>> known_things = sorted(set(a.iterkeys()).intersection(xyz)) >>> unknown_things = sorted(set(xyz).difference(a.iterkeys())) >>> >>> for thing in known_things: ... print 'I know about', a[thing] ... I k...
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How can I split and parse a string in Python?

I am trying to split this string in python: 2.7.0_bf4fda703454 3 Answers 3 ...
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Haml: Control whitespace around text

...t;a href='thing'>here</a>. precede: = precede '*' do %span.small Not really Produces: *<span class='small'>Not really</span> To answer the original question: I will first = succeed ',' do = link_to 'link somewhere', 'http://example.com' - if @condition then render...
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Cropping an UIImage

...of the center of the image - I use this to take a UIImage and return a small, square representation of an image, similar to what's seen in the album view of the Photos app. (I know I could use a UIImageView and adjust the crop mode to achieve the same results, but these images are sometimes disp...