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Rails migrations: self.up and self.down versus change

...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
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Inserting a Python datetime.datetime object into MySQL

I have a date column in a MySQL table. I want to insert a datetime.datetime() object into this column. What should I be using in the execute statement? ...
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What is the proper #include for the function 'sleep()'?

... this is what I use for a cross-platform code: #ifdef _WIN32 #include <Windows.h> #else #include <unistd.h> #endif int main() { pollingDelay = 100 //do stuff //sleep: #ifdef _WIN32 Sleep(pollingDelay); #else usleep(pollingDelay*1000); /* sleep for 100 mi...
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Unique fields that allow nulls in Django

...on): – Phil Gyford Mar 15 '18 at 14:32 1 The comment from @PhilGyford applies as of 2.0. ...
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Scaling Node.js

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Do you get charged for a 'stopped' instance on EC2? [closed]

...nce – steampowered Oct 29 '15 at 15:32 16 ...
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How to properly stop the Thread in Java?

I need a solution to properly stop the thread in Java. 9 Answers 9 ...
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Multiple GitHub Accounts & SSH Config

I'm having some trouble getting two different SSH keys/GitHub accounts to play well together. I have the following setup: ...
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Creating a temporary directory in Windows?

...ucceed. It is a little surprising that .NET designers chose to hide the Win32 API functionality for directories, which makes this much easier, because it does return an error when you attempt to create a directory for the second time. Here is what I use: [DllImport(@"kernel32.dll", EntryPoint =...
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How to iterate a loop with index and element in Swift

... | edited Apr 18 '16 at 5:32 rounak 8,30922 gold badges3838 silver badges5757 bronze badges answered Feb...