大约有 30,000 项符合查询结果（耗时：0.0411秒） [XML]
mongoDB/mongoose: unique if not null
...cumentation with respect to Unique Indexes and Missing Keys here at http://www.mongodb.org/display/DOCS/Indexes#Indexes-UniqueIndexes.
// NOTE: Code to executed in mongo console.
db.things.ensureIndex({firstname: 1}, {unique: true});
db.things.save({lastname: "Smith"});
// Next operation ...
How can I get clickable hyperlinks in AlertDialog from a string resource?
... .setIcon(R.drawable.icon)
.setMessage(Html.fromHtml("<a href=\"http://www.google.com\">Check this link out</a>"))
.create();
d.show();
// Make the textview clickable. Must be called after show()
((TextView)d.findViewById(android.R.id.message)).setMovementMethod(LinkMovementMeth...
An algorithm for inflating/deflating (offsetting, buffering) polygons
...
In the GIS world one uses negative buffering for this task:
http://www-users.cs.umn.edu/~npramod/enc_pdf.pdf
The JTS library should do this for you. See the documentation for the buffer operation: http://tsusiatsoftware.net/jts/javadoc/com/vividsolutions/jts/operation/buffer/package-summary...
How to let PHP to create subdomain automatically for each user?
...de from that tutorial:
<VirtualHost 111.22.33.55>
DocumentRoot /www/subdomain
ServerName www.domain.tld
ServerAlias *.domain.tld
</VirtualHost>
However as it required the use of VirtualHosts it must be set in the server's httpd.conf file, instead of a local .htaccess.
...
GitHub README.md center image
...left alignment
<img align="left" width="600" height="200" src="https://www.python.org/python-.png">
For right alignment
<img align="right" width="600" height="200" src="https://www.python.org/python-.png">
And for center alignment
<p align="center">
<img width="600" height=...
Checking network connection
...client as httplib
def have_internet():
conn = httplib.HTTPConnection("www.google.com", timeout=5)
try:
conn.request("HEAD", "/")
conn.close()
return True
except:
conn.close()
return False
...
How do you get the Git repository's name in some Git repository?
... -n '1 p' test.ip | basename basename git rev-parse --show-toplevel `:/var/www" ?? As You probably see this line will not work cause of using `` inside ``
– fearis
Mar 17 '16 at 9:29
...
CSS: How to remove pseudo elements (after, before,…)?
...s the official value to set the content, if specified, to nothing.
http://www.w3schools.com/cssref/pr_gen_content.asp
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How to Decrease Image Brightness in CSS
... brightness(50%);
}
You can find a helpful article about it here: http://www.html5rocks.com/en/tutorials/filters/understanding-css/
An another: http://davidwalsh.name/css-filters
And most importantly, the W3C specs: https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html
Note this is someth...
gunicorn autoreload on source change
...to sudoers. Allow it to run sudo supervisorctl without password. https://www.cyberciti.biz/faq/linux-unix-running-sudo-command-without-a-password/
From my local / development server, I set up git remote that allows me to push to the production server
git remote add production ssh://user_name@pro...