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Advantage of creating a generic repository vs. specific repository for each object?
...testing in parallel. Then, as I find I need specific queries on the repo, etc, I start replacing that dependency w/ the specific one if needed and going from there. One underlying impl. is easy to create and use (and possibly hook to an in-memory db or static objects or mocked objects or whatever)...
Can I use __init__.py to define global variables?
...package. I've thought that the best place would be in in the __init__.py file of the root package. But I don't know how to do this. Suppose I have a few subpackages and each with several modules. How can I access that variable from these modules?
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Storing Image Data for offline web application (client-side storage database)
...0MB of data that it will save (client-side) consisting mainly of PNG image files. The operation is as follows:
4 Answers
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What is the difference between sigaction and signal?
...xtremely impoverished set of options for what you can do. You can: modify (file scope) variables of type volatile sig_atomic_t; call one of the 'quick exit' functions (_Exit(), quick_exit()) or abort(); call signal() with the current signal number as the signal argument; return. And that's it. Anyt...
Is there documentation for the Rails column types?
...two states, like on/off)
Binary:
Use to store images, movies, and other files in their original, raw format in chunks of data called blobs
:primary_key
This datatype is a placeholder that Rails translates into whatever primary key datatype your database of choice requires (i.e. serial primar...
Is there a built-in function to print all the current properties and values of an object?
... ...
'zip': <built-in function zip>},
'__file__': 'pass.py',
'__name__': '__main__'}
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Difference between and
...($_POST); ?>
Test the above on your local machine by creating the two files in a folder named /tmp/test/ then running the built-in PHP web server from shell:
php -S localhost:3000 -t /tmp/test/
Open your browser at http://localhost:3000 and see for yourself.
One would wonder why would we ne...
Why can I access private variables in the copy constructor?
...cted (if even legal) then assigned too (again, if legal)
share resources - file handles, shared memory segments, shared_ptrs to reference data etc.
take ownership of things, e.g. auto_ptr<> "moves" ownership to the object under construction
copy private "cache", calibration, or state members n...
Unicode Processing in C++
...icode library for mundane tasks like string length, capitalization status, etc. Never use standard library builtins like is_alpha unless that is the definition you want.
I can't say it enough: never iterate over the indices of a string if you care about correctness, always use your unicode library f...
How the single threaded non blocking IO model works in Node.js
...ramming model open/read/write operation on devices and resources (sockets, filesystem, etc.) managed by the file-system don't block the calling thread (as in the typical synchronous c-like model) and just mark the process (in kernel/OS level data structure) to be notified when new data or events are...