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Extending the User model with custom fields in Django
...ut-users
Update: Please note that AUTH_PROFILE_MODULE is deprecated since v1.5: https://docs.djangoproject.com/en/1.5/ref/settings/#auth-profile-module
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How to set or change the default Java (JDK) version on OS X?
...Fish (as stated by ormurin)
set -x JAVA_HOME (/usr/libexec/java_home -d64 -v1.8)
Updating the .zshrc file should work:
nano ~/.zshrc
export JAVA_HOME=$(/usr/libexec/java_home -v 1.8.0)
Press CTRL+X to exit the editor
Press Y to save your changes
source ~/.zshrc
echo $JAVA_HOME
java -version
...
REST API Authentication
...btw) you can then do the following:
Create a Login/logout API like: /api/v1/login and api/v1/logout
In these Login and Logout APIs, perform the authentication with your
user store
The outcome is a token (usually, JSESSIONID) that is sent back to the client (web, mobile, whatever)
From this point o...
Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...double型，64bits，你不必担心Lua处理浮点数会慢（除非大于100,000,000,000,000），或是会有精度问题。你可以以如下的方式表示数字，0x开头的16进制和C是很像的。num = 1024
num = 3.0
num = 3.1416
num = 314.16e-2
num = 0.31416E1
num = 0xff
num = 0x56复制...
Check image width and height before upload with Javascript
... {
var height = this.height;
var width = this.width;
if (height > 100 || width > 100) {
alert("Height and Width must not exceed 100px.");
return false;
}
alert("Uploaded image has valid Height and Width.");
return true;
};
...
Cartesian product of x and y array points into single array of 2D points
...
+100
A canonical cartesian_product (almost)
There are many approaches to this problem with different properties. Some are faster than ot...
Approximate cost to access various caches and main memory?
...5 cycles ( 40.2 - 22.5 ns )
remote L3 CACHE (Ref: Fig.1 [Pg. 5]) ~100-300 cycles ( 160.7 - 30.0 ns )
local DRAM ~60 ns
remote DRAM ~100 ns
EDIT2:
The most important is the notice under the...
MySQL vs MongoDB 1000 reads
...
Do you have concurrency, i.e simultaneous users ? If you just run 1000 times the query straight, with just one thread, there will be almost no difference. Too easy for these engines :)
BUT I strongly suggest that you build a true load testing session, which means using an injector such as ...
How useful/important is REST HATEOAS ( maturity level 3)?
... "_links": {
"self": {
"href": "https://hostname/api/v1/posts/1",
"actions": {
"read": "GET",
"update": "PUT",
"delete": "DELETE"
}
}
},
"_embedded": {
"owner": {
"id": 1...
Pandas percentage of total with groupby
...id': list(range(1, 7)) * 2,
'sales': [np.random.randint(100000, 999999)
for _ in range(12)]})
state_office = df.groupby(['state', 'office_id']).agg({'sales': 'sum'})
# Change: groupby state_office and divide by sum
state_pcts = state_office.groupby(lev...