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How do I migrate a model out of one django app and into a new one?
...s migrations are aware of the change and life sucks just a little less :-)
Setting this relationship between migrations is key of success.
Now if you do:
python manage.py migrate common
> specific: 0003_create_cat
> common: 0003_drop_cat
will do both migration, and
python manage.py migr...
Twitter Bootstrap vs jQuery UI? [closed]
...
Having used both, Twitter's Bootstrap is a superior technology set. Here are some differences,
Widgets: jQuery UI wins here. The date widget it provides is immensely useful, and Twitter Bootstrap provides nothing of the sort.
Scaffolding: Bootstrap wins here. Twitter's grid both fluid ...
Node.js quick file server (static files over HTTP)
...n a previous answer here
// Website you wish to allow to connect
response.setHeader('Access-Control-Allow-Origin', '*');
// Request methods you wish to allow
response.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');
// Request headers you wish to allow
response...
What is the naming convention in Python for variable and function names?
Coming from a C# background the naming convention for variables and method names are usually either camelCase or PascalCase:
...
presentViewController:animated:YES view will not appear until user taps again
...ve found the issue by using a UITableViewCell which had its selectionStyle set to UITableViewCellSelectionStyleNone, so that no selection animation triggered the runloop after the row selection handler ran.
To fix it (until Apple does something) you can trigger the main runloop by several means:
...
How can I convert my Java program to an .exe file? [closed]
... an open source utility. It has many features.
packr
Packages your JAR, assets and a JVM for distribution on Windows, Linux and Mac OS X, adding a native executable file to make it appear like a native app. Packr is most suitable for GUI applications.
– packr README
packr is another open source ...
BLE协议—广播和扫描 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...进行连接后点对点通信。广播访问地址广播包：广播包Access Address 固定为0x8E89BED6，广播包只能在广播信道（channel）上传输，即只能在37/38/39信道上传输（注：从蓝牙5.0开始广播包可以在其它信道上传输）。广播包发送给附近所...
Design Pattern for Undo Engine
...mmand pattern?" Yes, but I've seen too many command systems that have two sets of commands, one for immediate operations and another set for undo/redo. I'm not saying that there won't be commands that are specific to immediate operations and undo/redo, but reducing the duplication will make the co...
Best way to create custom config options for my Rails app?
...ls application. It can be the same for all environments. I found that if I set it in environment.rb , it's available in my views, which is exactly what I want...
...
How to convert a PNG image to a SVG? [closed]
...g)"
echo >&2 "must be a file having a size greater than zero"
( set -x ; ls -s "$File_png" )
exit 1
fi
File="${File_png%.*}"
convert "$File_png" "$File.pnm" # PNG to PNM
potrace "$File.pnm" -s -o "$File.svg" # PNM to SVG
rm "$File.pnm" # Remove PNM
On...