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How do I include related model fields using Django Rest Framework?
...ializers.ModelSerializer):
teachers = TeacherSerializer(source='teacher_set')
class Meta:
model = Classroom
Note that we use the source argument on the serializer field to specify the attribute to use as the source of the field. We could drop the source argument by instead making...
Using NSPredicate to filter an NSArray based on NSDictionary keys
...ue3"], ["key3": "value4"]]
let dictPredicate = NSPredicate(block: { (obj, _) in
guard let dict = obj as? [String: String], let value = dict["key1"] else { return false }
return value == "value1"
})
let filteredArray = array.filter(dictPredicate.evaluate)
print(filteredArray) // prints: [["...
What character to use to put an item at the end of an alphabetic list?
I often prepend ' _ ' to the item I want in first position.
Is there some sort of magical character I could use to put an item at the end of the list?
...
Using vagrant to run virtual machines with desktop environment
... to start the GUI: sudo vim /etc/X11/Xwrapper.config and edit it to allowed_users=anybody.
Next, install the VirtualBox guest tools before starting the GUI. This will give you a healthy screen resolution, integrated mouse, etc.
$ sudo apt-get install -y xfce4 virtualbox-guest-dkms virtualbox-guest-u...
Could not calculate build plan: Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of
...ained the proxy settings (settings.xml can exist in two places one in MAVEN_HOME. The other in %userprofile%.m2\ with the later having higher precedence):
<proxy>
<id>optional</id>
<active>true</active>
<protocol>http</protocol>
<username>opti...
Ignoring SSL certificate in Apache HttpClient 4.3
...esponse.close();
}
I did not include the SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER on purpose: The point was to allow testing with self signed certificates so you don't have to acquire a proper certificate from a certification authority. You can easily create a self-signed certificate...
Multiple inheritance for an anonymous class
...ited Jun 5 '14 at 14:45
aspiring_sarge
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answered May 1 '11 at 13:04
...
jQuery table sort
...
There is a video on its use at:
http://www.highoncoding.com/Articles/695_Sorting_GridView_Using_JQuery_TableSorter_Plug_in.aspx
$('#tableRoster').tablesorter({
headers: {
0: { sorter: false },
4: { sorter: false }
}
});
With a simple table
<t...
Random / noise functions for GLSL
...hash(floatBitsToUint(v))); }
void main()
{
vec3 inputs = vec3( gl_FragCoord.xy, time ); // Spatial and temporal inputs
float rand = random( inputs ); // Random per-pixel value
vec3 luma = vec3( rand ); // Expand to RGB
fragment = vec4( luma, ...
Convert char to int in C and C++
...fuse everyone who tries to learn the language. A better name for it is int8_t, and you can use that name instead, if your compiler follows the latest C standard.
Though of course you should use the char type when doing string handling, because the index of the classic ASCII table fits in 1 byte. Yo...