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Unresolved external symbol in object files
...dio I got an unresolved external symbol error
and I've got no idea what to do. I don't know what's wrong.
Could you please decipher me? Where should I be looking for what kind of errors?
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Devise - How do I forbid certain users from signing in?
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Do it like this:
Create a column called is_active for the User model.
Then add the code below to the User model:
class User < ActiveRecord::Base
#this method is called by devise to check for "active" state of the mode...
How to serve an image using nodejs
...ion is over 5 years old but every answer has some problems.
TL;DR
Scroll down for examples to serve an image with:
express.static
express
connect
http
net
All of the examples are also on GitHub: https://github.com/rsp/node-static-http-servers
Test results are available on Travis: https://trav...
How do I remove a MySQL database?
...base cannot be dropped, even though you have no typos in the statement and do not miss the ; at the end, enclose the database name in between backticks:
mysql> drop database `my-database`;
Backticks are for databases or columns, apostrophes are for data within these.
For more information, see...
Sort a Custom Class List
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One way to do this is with a delegate
List<cTag> week = new List<cTag>();
// add some stuff to the list
// now sort
week.Sort(delegate(cTag c1, cTag c2) { return c1.date.CompareTo(c2.date); });
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Why does flowing off the end of a non-void function without returning a value not produce a compiler
Ever since I realized many years ago, that this doesn't produce an error by default (in GCC at least), I've always wondered why?
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How to check if a process id (PID) exists
In a bash script, I want to do the following (in pseudo-code):
10 Answers
10
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Multiple controllers with AngularJS in single page app
...ers available in your application module, as usual.
The most basic way to do it could be as simple as declaring the controller functions like this:
function widgetController($scope) {
// stuff here
}
function menuController($scope) {
// stuff here
}
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Cron and virtualenv
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You should be able to do this by using the python in your virtual environment:
/home/my/virtual/bin/python /home/my/project/manage.py command arg
EDIT: If your django project isn't in the PYTHONPATH, then you'll need to switch to the right dire...
How can one close HTML tags in Vim quickly?
It's been a while since I've had to do any HTML-like code in Vim , but recently I came across this again. Say I'm writing some simple HTML :
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