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Trusting all certificates with okHttp
... This doesn't work for self-signed certs. Causes a 401 Unauthorized error.
– IgorGanapolsky
Jun 5 '18 at 14:55
5
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Insert, on duplicate update in PostgreSQL?
...ubject to race conditions that mean it might still fail with duplicate key error if a row is inserted concurrently, or might terminate with no row inserted when a row is deleted concurrently. A SERIALIZABLE transaction on PostgreSQL 9.1 or higher will handle it reliably at the cost of a very high se...
npm global path prefix
...m refuses to install jslint globally, though. npm install -g jslint fails. Error: EACCES, open '/Users/user/.npm/564fcf84-jslint.lock'
– Steven Lu
Feb 12 '13 at 20:06
2
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Creating an empty list in Python
...ny list, and if I append something else, e.g.
t = t.append(2)
I get the error "'NoneType' object has no attribute 'append'". If, however, I create the list by
t = list() # explicit instantiation
then it works fine.
sh...
Is there a way to change the environment variables of another process in Unix?
...
On some systems gdb may give the following error: 'putenv' has unknown return type; cast the call to its declared return type; in those cases you should change putenv call to this: call (int) putenv ("env_var_name=env_var_value")
– Emir Uner
...
Check if OneToOneField is None in Django
... Thank you for this solution. Unfortunately, this doesn't work all the time. In case you want to work with select_related() now or in the future -- or maybe even to be sure you also handle other sorts of magic which may happen elsewhere -- you have to extend the test as follows: if hasat...
Find out what process registered a global hotkey? (Windows API)
...is compilable in Delphi 2007 with a couple of tweaks.
It's a DLL with a call to SetWindowsHookEx that passes through a callback function, which can then intercept key strokes: In this case, it's tinkering with them for fun, changing left cursor to right, etc. A simple app then calls the DLL and re...
throwing exceptions out of a destructor
...ptions they will manually call the appropriate functions and processes any errors. If the user of the object is not worried (as the object will be destroyed) then the destructor is left to take care of business.
An example:
std::fstream
The close() method can potentially throw an exception.
The dest...
Is there a way to access method arguments in Ruby?
...
You could then display the name and value of each parameter with
logger.error "Method failed with " + args.map { |arg| "#{arg} = #{eval arg}" }.join(', ')
Note: since this answer was originally written, in current versions of Ruby eval can no longer be called with a symbol. To address this, a...
PHPUnit: assert two arrays are equal, but order of elements not important
...ected, $actual), array_diff($actual, $expected)));
For a more detailed error message (while debugging), you can also test like this (thanks @DenilsonSá):
$this->assertSame(array_diff($expected, $actual), array_diff($actual, $expected));
Old version with bugs inside:
$this->assertEmp...