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MySQL ON vs USING?
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The JOIN ON clause using a custom projection
Traditionally, when writing an INNER JOIN or LEFT JOIN query, we happen to use the ON clause to define the join condition.
For example, to get the comments along with their associated post title and identifi...
Move assignment operator and `if (this != &rhs)`
...mb_array &r ) noexcept { l.swap( r ); }
A swappable type that needs customization should have a two-argument free function called swap in the same namespace as the type. (The namespace restriction lets unqualified calls to swap to work.) A container type should also add a public swap member...
What does “default” mean after a class' function declaration?
...the move constructor isn't always generated by default (e.g. if you have a custom destructor), unlike the copy constructor (and likewise for assignment), but if there's nothing non-trivial to write, it's better to let the compiler handle it than to spell it out yourself each time.
Also notice that ...
What are the pros and cons to keeping SQL in Stored Procs versus Code [closed]
...ement changeable conditions in my stored procedure and it would be easy to customize at a customer site.
It becomes easier to use some automated tools to convert my schema and statements together rather than when it is embedded inside my code where I would have to hunt them down.
Ensuring best prac...
64-bit version of Boost for 64-bit windows
...dio 2010 Express. I found that missing part somewhere else, and after some customization the final recipe I used for my build of the boost 1.49.0 binaries was:
Start Visual C++, and from the Tools menu start Visual Studio Command Prompt.
In the console window, do the following:
"C:\Program Files\...
Using @include vs @extend in Sass?
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Extends do not allow customization, but they produce very efficient CSS.
%button
background-color: lightgrey
&:hover, &:active
background-color: white
a
@extend %button
button
@extend %button
Result:
a, button {
backgr...
SQL - many-to-many table primary key
...ociative tables that need to be written to very often e.g. a table linking customer to order.
– user
Aug 26 '13 at 19:13
5
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Convert Django Model object to dict with all of the fields intact
...ds.
foreign_key_id is still wrong and many_to_many is still missing.
5. Custom Function
The code for django's model_to_dict had most of the answer. It explicitly removed non-editable fields, so removing that check and getting the ids of foreign keys for many to many fields results in the follow...
Implementing MVC with Windows Forms
...le like” (e.g. invoices) that work well in standard grid controls / need custom controls for most of the UI data.
One developer / teams of 10 or 20 developers (just on the UI)
Lots of unit test using mocks etc / no unit tests
Therefore I don’t think it’s possible to create one implementati...
How do I handle the window close event in Tkinter?
...on and example code.
Beware of the fact that destroy() (or not having a custom window closing handler at all) will destroy the window and all of its running callbacks instantly when the user closes it.
This can be bad for you, depending on your current Tkinter activity, and especially when using...