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Detecting Unsaved Changes
...
Using jQuery:
var _isDirty = false;
$("input[type='text']").change(function(){
_isDirty = true;
});
// replicate for other input types and selects
Combine with onunload/onbeforeunload methods as required.
From the comments, the following ...
Converting camel case to underscore case in ruby
...ef underscore
self.gsub(/::/, '/').
gsub(/([A-Z]+)([A-Z][a-z])/,'\1_\2').
gsub(/([a-z\d])([A-Z])/,'\1_\2').
tr("-", "_").
downcase
end
end
Then you can do fun stuff:
"CamelCase".underscore
=> "camel_case"
...
Open a URL in a new tab (and not a new window)
... is a trick,
function openInNewTab(url) {
var win = window.open(url, '_blank');
win.focus();
}
In most cases, this should happen directly in the onclick handler for the link to prevent pop-up blockers, and the default "new window" behavior. You could do it this way, or by adding an event li...
Decorators with parameters?
I have a problem with the transfer of variable 'insurance_mode' by the decorator. I would do it by the following decorator statement:
...
Finding the index of elements based on a condition using python list comprehension
...
filtered_ranges_and_angles = [(range, angle) for range, angle in zip(ranges, angles) if should_be_kept(range)]
– Mike Graham
Jul 21 '16 at 21:43
...
How to convert a String to its equivalent LINQ Expression Tree?
...em.Linq.Expressions have some parsing mechanism?
– AK_
Jul 1 '13 at 14:51
I am pretty sure that he is wanting to read ...
The following sections have been defined but have not been rendered for the layout page “~/Views/Sha
...but you have not included anything for that section in your View.
If your _Layout.cshtml has something like this:
@RenderSection("scripts")
Then all Views that use that Layout must include a @section with the same name (even if the contents of the section are empty):
@{
ViewBag.Title = "Tit...
Can someone explain how to implement the jQuery File Upload plugin?
...(2) + ' KB';
}
And here is the PHP code sample to process the data:
if($_POST) {
$allowed = array('jpg', 'jpeg');
if(isset($_FILES['uploadctl']) && $_FILES['uploadctl']['error'] == 0){
$extension = pathinfo($_FILES['uploadctl']['name'], PATHINFO_EXTENSION);
if(!...
How to reset postgres' primary key sequence when it falls out of sync?
...psql and run the following
-- What is the result?
SELECT MAX(id) FROM your_table;
-- Then run...
-- This should be higher than the last result.
SELECT nextval('your_table_id_seq');
-- If it's not higher... run this set the sequence last to your highest id.
-- (wise to run a quick pg_dump first.....
Django MEDIA_URL and MEDIA_ROOT
...
# ... the rest of your URLconf goes here ...
) + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
You no longer need if settings.DEBUG as Django will handle ensuring this is only used in Debug mode.
ORIGINAL answer for Django <= 1.6
Try putting this into your urls.py
from...