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Using Django time/date widgets in custom form
...e many hacks required, probably ought to caution you against doing this at all. It's relying on undocumented internal implementation details of the admin, is likely to break again in future versions of Django, and is no easier to implement than just finding another JS calendar widget and using that....
How to find out what type of a Mat object is with Mat::type() in OpenCV
...";
r += (chans+'0');
return r;
}
If M is a var of type Mat you can call it like so:
string ty = type2str( M.type() );
printf("Matrix: %s %dx%d \n", ty.c_str(), M.cols, M.rows );
Will output data such as:
Matrix: 8UC3 640x480
Matrix: 64FC1 3x2
Its worth noting that there are also Matr...
How can I use threading in Python?
...ticle/blog post that you should definitely check out (no affiliation) - Parallelism in one line: A Better Model for Day to Day Threading Tasks. I'll summarize below - it ends up being just a few lines of code:
from multiprocessing.dummy import Pool as ThreadPool
pool = ThreadPool(4)
results = pool.m...
How do you use version control with Access development?
...an Access solution. It has a good amount of VBA, a number of queries, a small amount of tables, and a few forms for data entry & report generation. It's an ideal candidate for Access.
...
Mercurial .hgignore for Visual Studio 2008 projects
...
Here's my standard .hgignore file for use with VS2008 that was originally modified from a Git ignore file:
# Ignore file for Visual Studio 2008
# use glob syntax
syntax: glob
# Ignore Visual Studio 2008 files
*.obj
*.exe
*.pdb
*.user
*.aps
*.pch
*.vspscc
*_i.c
*_p.c
*.ncb
*.suo
*.tlb
*.tlh
...
How to redirect to a 404 in Rails?
...ou want to show a 404 page, create a render_404 method (or not_found as I called it) in ApplicationController like this:
def not_found
raise ActionController::RoutingError.new('Not Found')
end
Rails also handles AbstractController::ActionNotFound, and ActiveRecord::RecordNotFound the same way....
Ruby: require vs require_relative - best practice to workaround running in both Ruby =1.
...ernel
def require_relative(path)
require File.join(File.dirname(caller[0]), path.to_str)
end
end
end
This allows you to use require_relative as you would in ruby 1.9.2 in ruby 1.8 and 1.9.1.
share
...
Warning “Do not Access Superglobal $_POST Array Directly” on Netbeans 7.4 for PHP
...rning may disappear, but if you don't specify a filter then you will not really fix the security issue NetBeans is pointing out. For example, if you are expecting an int, use: filter_input(INPUT_POST, 'var_name', FILTER_SANITIZE_NUMBER_INT)
– HoffZ
Jul 18 '14 a...
How to make an array of arrays in Java
Hypothetically, I have 5 string array objects:
4 Answers
4
...
Python: Best way to add to sys.path relative to the current running script
...o have a library located in project/lib and want the scripts to automatically load it. This is what I normally use at the top of each script:
...