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Django Setup Default Logging
I can't seem to figure out how to setup a "default" logger for my Django installation. I would like to use Django 1.3's new LOGGING setting in settings.py .
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Change branch base
...o for that:
git rebase --onto newBase oldBase feature/branch
Given your case:
git checkout PRO # Just to be clear which branch to be on.
git rebase --onto master demo PRO
Basically, you take all the commits from after demo up to PRO, and rebase them onto the master commit.
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How to swap keys and values in a hash
... 3}.invert
=> {1=>:a, 2=>:b, 3=>:c}
BUT...
If you have duplicate values, invert will discard all but the last occurrence of your values (because it will keep replacing new value for that key during iteration). Likewise, key will only return the first match:
{a: 1, b: 2, c: 2}.key(2)...
What are fail-safe & fail-fast Iterators in Java
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"Fail-safe" (in engineering) means that something fails in a way that causes no or minimal damage. Strictly speaking, there is no such thing in Java as a fail-safe iterator. If an iterator fails (in the normal sense of "fail"), you can expect damage to occur.
I suspect that you actually mean...
How to save MailMessage object to disk as *.eml or *.msg file
...or simplicity, I'll just quote an explanation from a Connect item:
You can actually configure the
SmtpClient to send emails to the file
system instead of the network. You can
do this programmatically using the
following code:
SmtpClient client = new SmtpClient("mysmtphost");
client.Deli...
Add unique constraint to combination of two columns
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Once you have removed your duplicate(s):
ALTER TABLE dbo.yourtablename
ADD CONSTRAINT uq_yourtablename UNIQUE(column1, column2);
or
CREATE UNIQUE INDEX uq_yourtablename
ON dbo.yourtablename(column1, column2);
Of course, it can often be better to c...
Does Python support multithreading? Can it speed up execution time?
...o run threads in parallel.
This only applies to Python code. C extensions can and do release the GIL to allow multiple threads of C code and one Python thread to run across multiple cores. This extends to I/O controlled by the kernel, such as select() calls for socket reads and writes, making Pytho...
nodeValue vs innerHTML and textContent. How to choose?
...nstance.
innerText didn't exist in firefox until FireFox 45 according to caniuse but is now supported in all major browsers.
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XPath to select multiple tags
...er is:
/a/b/*[self::c or self::d or self::e]
Do note that this
a/b/*[local-name()='c' or local-name()='d' or local-name()='e']
is both too-long and incorrect. This XPath expression will select nodes like:
OhMy:c
NotWanted:d
QuiteDifferent:e
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When serving JavaScript files, is it better to use the application/javascript or application/x-javas
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text/javascript is obsolete
application/x-javascript was experimental while deciding to move to…
application/javascript is the current official MIME type for JS
That said, browsers often ignore the content-type sent by the server and pay a lot of attenti...