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@RequestParam vs @PathVariable
.../localhost:8080/MyApp/user/1234/invoices?date=12-05-2013 gets the invoices for user 1234 on December 5th, 2013, the controller method would look like:
@RequestMapping(value="/user/{userId}/invoices", method = RequestMethod.GET)
public List<Invoice> listUsersInvoices(
@PathVariable...
Understanding Apache's access log
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You seem to be using the combined log format.
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-agent}i\"" combined
%h is the remote host (ie the client IP)
%l is the identity of the user determined by identd (not usually used since not reli...
Can you grab or delete between parentheses in vi/vim?
...e cursor. Position the cursor on the opening (or closing) paren and use y% for yanking or d% for deleting everything from the cursor to the matching paren.
This works because % is a "motion command", so it can be used anywhere vim expects such a command. From :help y:
["x]y{motion} Yank {mot...
How to create a custom-shaped bitmap marker with Android map API v2 [duplicate]
...the Canvas canvas1 onto the GoogleMap mMap. The code should (mostly) speak for itself, there are many tutorials out there how to draw a Canvas. You can start by looking at the Canvas and Drawables from the Android Developer page.
Now you also want to download a picture from an URL.
URL url = new U...
How do I integrate Ajax with Django applications?
...s requests. That sounds complicated, but it simply means it does a request for you in the background and then handles the response. So when you do an AJAX call for some URL, you get the same data you would get as a user going to that place.
For example, an AJAX call to 127.0.0.1:8000/hello will re...
How to refer environment variable in POM.xml?
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Also, it makes your build platform- and system-dependant.
– lhunath
Dec 2 '12 at 4:22
14
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After submitting a POST form open a new window showing the result
JavaScript post request like a form submit shows you how to submit a form that you create via POST in JavaScript. Below is my modified code.
...
Turn a string into a valid filename?
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You can look at the Django framework for how they create a "slug" from arbitrary text. A slug is URL- and filename- friendly.
The Django text utils define a function, slugify(), that's probably the gold standard for this kind of thing. Essentially, their code...
How can I find the number of arguments of a Python function?
...d as of Python 3.0. Instead of using inspect.getargspec you should now opt for the Signature class which superseded it.
Creating a Signature for the function is easy via the signature function:
from inspect import signature
def someMethod(self, arg1, kwarg1=None):
pass
sig = signature(someM...
Adding :default => true to boolean in existing Rails column
...can't call it like that in the console.
If you want to add a default value for this column, create a new migration:
rails g migration add_default_value_to_show_attribute
Then in the migration created:
# That's the more generic way to change a column
def up
change_column :profiles, :show_attribute,...