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Rails 3 migrations: Adding reference column?
...gration AddUserRefToProducts user:references
like you can see on rails guides
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Alter a MySQL column to be AUTO_INCREMENT
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ALTER TABLE document MODIFY COLUMN document_id INT auto_increment
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How to add url parameters to Django template url tag?
...ccept the param in the regex:
(urls.py)
url(r'^panel/person/(?P<person_id>[0-9]+)$', 'apps.panel.views.person_form', name='panel_person_form'),
So you use this in your template:
{% url 'panel_person_form' person_id=item.id %}
If you have more than one param, you can change your regex and...
Facebook API - How do I get a Facebook user's profile image through the Facebook API (without requir
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Simply fetch the data through this URL:
http://graph.facebook.com/userid_here/picture
Replace userid_here with id of the user you want to get the photo of. You can also use HTTPS as well.
You can use the PHP's file_get_contents function to read that URL and process the retrieved data.
Resour...
Inserting HTML elements with JavaScript
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Using document fragments is very quick; faster than creating elements outside of the DOM and in certain situations faster than innerHTML.
Even though innerHTML is used within the function, it's all happening outside of the DOM so it's much faster than you'd think...
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Smooth scroll to div id jQuery
I've been trying to get a scroll to div id jquery code to work correctly. Based on another stack overflow question i tried the following
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How do I typedef a function pointer with the C++11 using syntax?
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It has a similar syntax, except you remove the identifier from the pointer:
using FunctionPtr = void (*)();
Here is an Example
If you want to "take away the uglyness", try what Xeo suggested:
#include <type_traits>
using FunctionPtr = std::add_pointer<void(...
How can I know if a process is running?
...ng");
else
MessageBox.Show("run");
You can loop all process to get the ID for later manipulation:
Process[] processlist = Process.GetProcesses();
foreach(Process theprocess in processlist){
Console.WriteLine("Process: {0} ID: {1}", theprocess.ProcessName, theprocess.Id);
}
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MongoDB and “joins” [duplicate]
...s to do it manually, as you have almost described. Just save a document's _id in another document's other_id, then write your own function to resolve the relationship. The other solution is to use DBRefs as described on the manual page above, which will make MongoDB resolve the relationship client-s...
What techniques can be used to speed up C++ compilation times?
...ver, compiling multiple source files as one translation unit is faster (at least in my experiments with MSVC and GCC) and generates smaller binaries. I also suspect that the compiler is given more potential for optimizations (since it can see more code at once).
This technique breaks in various cas...