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how to add records to has_many :through association in rails
...
Another way to add associations is by using the foreign key columns:
agent = Agent.new(...)
agent.house = House.find(...)
agent.customer = Customer.find(...)
agent.save
Or use the exact column names, passing the ID of the associated record instead of the re...
Better way to get type of a Javascript variable?
...
A reasonably good type capture function is the one used by YUI3:
var TYPES = {
'undefined' : 'undefined',
'number' : 'number',
'boolean' : 'boolean',
'string' : 'string',
'[object Function]': 'function',
'[object RegExp]...
How to remove files from git staging area?
...EAD -- path/to/file
Just like git add, you can unstage files recursively by directory and so forth, so to unstage everything at once, run this from the root directory of your repository:
git reset HEAD -- .
Also, for future reference, the output of git status will tell you the commands you need...
Using global variables in a function
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You can use a global variable within other functions by declaring it as global within each function that assigns a value to it:
globvar = 0
def set_globvar_to_one():
global globvar # Needed to modify global copy of globvar
globvar = 1
def print_globvar():
print...
Setting background-image using jQuery CSS property
...
By the by, doing $('#elem').css('background-image', 'url(' + encodeURIComponent(thumbData.url) + ')'); gave me background-image: url("%2Ffiles%2Fusers%2Fthumbs%2F36206608-hd-pics-3.jpg");
– Daerik
...
Why can I not push_back a unique_ptr into a vector?
...leaked. The rule of thumb is that all dynamic allocations should be owned by a named smart pointer to avoid leakiness.
– James McNellis
Feb 20 '12 at 5:52
8
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RuntimeError on windows trying python multiprocessing
...s."
which say
"Make sure that the main module can be safely imported by a new Python
interpreter without causing unintended side effects (such a starting a
new process)."
... by using if __name__ == '__main__'
sh...
How to convert a string to utf-8 in Python
...ype 'str'>, <type 'unicode'>)
^ This is the difference between a byte string (plain_string) and a unicode string.
>>> s = "Hello!"
>>> u = unicode(s, "utf-8")
^ Converting to unicode and specifying the encoding.
In Python 3
All strings are unicode. The unicode function d...
Java equivalent of C#'s verbatim strings with @
... escaped backslashes, the correct way to handle your particular example is by getting the file separator property:
String sep = System.getProperty("file.separator");
String filename = ROOTDIR + sep + "folder" + sep + "afile";
Where you'd have separately created ROOTDIR based on some poli...
How do I specify different Layouts in the ASP.NET MVC 3 razor ViewStart file?
...esired layout:
@{
Layout = "~/Views/Shared/_PublicLayout.cshtml";
}
By analogy you could put another _ViewStart.cshtml file inside the /Views/Staff folder with:
@{
Layout = "~/Views/Shared/_StaffLayout.cshtml";
}
You could also specify which layout should be used when returning a view ...