大约有 49,000 项符合查询结果(耗时:0.0642秒) [XML]
Rails: Default sort order for a rails model?
...atenating them with periods between them, so with the above scopes you can now use Book.published.confirmed.
With this method, the query is not actually executed until actual results are needed (lazy evaluation), so 7 scopes could be chained together but only resulting in 1 actual database query,...
oh-my-zsh slow, but only for certain Git repo
...makes things slow, like the rake folder does for rails apps? zsh is fast now, and I do not need the GIT zsh plugin anyway. Thanks!
– mblaettermann
Dec 31 '15 at 22:01
...
What character encoding should I use for a HTTP header?
... it to this:
field-value = <any field-content or Space or Tab>
Now we are after field-content.
field-content = <the OCTETs making up the field-value
and consisting of either *TEXT or combinations
of token, separators, and quoted-string>
OCTET ...
Calculate a Running Total in SQL Server
...um in the order of the primary key, I presume. It would be interesting to know if cursors are still more efficient than joins for larger data sets.
– codeulike
May 14 '09 at 8:37
1...
“The remote certificate is invalid according to the validation procedure.” using Gmail SMTP server
...e client computer in the next screen. Click Finish.
Click Close.
Click OK.
NOW install the certificate into the Trusted Root Certification Authorities certificate store. This will allow all users to trust the certificate.
sh...
How do I calculate a point on a circle’s circumference?
...
I've been trying to derive this equation for an hour now. Thanks. Who know the trig identities you learned in high school would be so helpful.
– Isioma Nnodum
May 28 '14 at 22:37
...
How to set custom location for local installation of npm package?
...
Variable name: %NPM_HOME%
Variable value: C:\\SomeFolder\\SubFolder\\
Now, set the config values to the new folders (examplary file names):
Set the npm folder
npm config set prefix "%NPM_HOME%\\npm"
Set the npm-cache folder
npm config set cache "%NPM_HOME%\\npm-cache"
Set the npm tem...
Sending HTML email using Python
...ls.encode(htmlin, pout, 'quoted-printable')
htmlin.close()
#
# Now that we're done, close our writer and
# return the message body
#
writer.lastpart()
msg = out.getvalue()
out.close()
print msg
return msg
if __name__=="__main__":
import smtplib
html =...
Android: alternate layout xml for landscape mode
...
I will try to explain it shortly.
First, you may notice that now you should use ConstraintLayout as requested by google (see androix library).
In your android studio projet, you can provide screen-specific layouts by creating additional res/layout/ directories. One for each screen con...
What to use as an initial version? [closed]
...ptotically
approaches π. This is a reflection of
the fact that TeX is now very stable,
and only minor updates are
anticipated. The current version of
TeX is 3.1415926; it was last updated
in March 2008
For METAFONT:
Metafont has a versioning system
similar to that of TeX, where ...
