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Understanding the Rails Authenticity Token
... authenticity_token, stores this token in the session, and places it in a hidden field in the form. When the user submits the form, Rails looks for the authenticity_token, compares it to the one stored in the session, and if they match the request is allowed to continue.
Why it happens
Since the a...
_=> what does this underscore mean in Lambda expressions?
...going to ignore it.
It's basically exploiting the syntax for what a legal identifier in C# constitutes, and since an identifier can start with an underscore, and contain nothing else, it's just a parameter name.
You could just have easily have written:
var _ = 10;
...
In-memory size of a Python structure
...tiple of 8" which I believe is correct for the way malloc behaves here. No idea why decimal gets so distorted (with pympler on 2.6, too).
– Alex Martelli
Aug 26 '09 at 2:40
2
...
Simulating group_concat MySQL function in Microsoft SQL Server 2005?
...
No REAL easy way to do this. Lots of ideas out there, though.
Best one I've found:
SELECT table_name, LEFT(column_names , LEN(column_names )-1) AS column_names
FROM information_schema.columns AS extern
CROSS APPLY
(
SELECT column_name + ','
FROM inform...
Adding parameter to ng-click function inside ng-repeat doesn't seem to work
...
Instead of
<button ng-click="removeTask({{task.id}})">remove</button>
do this:
<button ng-click="removeTask(task.id)">remove</button>
Please see this fiddle:
http://jsfiddle.net/JSWorld/Hp4W7/34/
...
How to change shape color dynamically?
...
I am getting java.lang.ClassCastException: android.graphics.drawable.GradientDrawable cannot be cast to android.graphics.drawable.ShapeDrawable when trying this suggestion.
– prolink007
Aug 15 '13 at 18:37
...
Effects of changing Django's SECRET_KEY
...s between views.
protect session data and create random session keys to avoid tampering as well.
create random salt for most password hashers
create random passwords if necessary
create itself when using startproject
create CSRF key
In reality a lot of the items listed here use SECRET_KEY through...
How to set a Fragment tag by code?
...the post on stackoverflow [1]: stackoverflow.com/questions/9363072/android-set-fragment-id
– SME
Jul 26 '12 at 6:04
2
...
Kill a Process by Looking up the Port being used by it from a .BAT
...ms= " %%P IN ('netstat -a -n -o ^| findstr :8080') DO @ECHO TaskKill.exe /PID %%P
When you're confident in your batch file, remove @ECHO.
FOR /F "tokens=4 delims= " %%P IN ('netstat -a -n -o ^| findstr :8080') DO TaskKill.exe /PID %%P
Note that you might need to change this slightly for differe...
How do I get SUM function in MySQL to return '0' if no values are found?
...
Use COALESCE to avoid that outcome.
SELECT COALESCE(SUM(column),0)
FROM table
WHERE ...
To see it in action, please see this sql fiddle: http://www.sqlfiddle.com/#!2/d1542/3/0
More Information:
Given three tables (one with all numbers...