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django admin - add custom form fields that are not part of the model
I have a model registered in the admin site. One of its fields is a long string expression. I'd like to add custom form fields to the add/update page of this model in the admin that based on these fields values I will build the long string expression and save it in the relevant model field.
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jQuery AJAX cross domain
... The
policy permits scripts running on
pages originating from the same site
to access each other's methods and
properties with no specific
restrictions, but prevents access to
most methods and properties across
pages on different sites.
For you to be able to get data, it has to be:
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What is the best place for storing uploaded images, SQL database or disk file system? [closed]
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(For all you googlers out there) If you have your site's root configured to a "public" folder (as in my_website/public/ instead of just my_website/), you can store the images in the my_website/my_images folder with the rest of your app. Then your img tags would reference "my...
Does every web request send the browser cookies?
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Is it true that browser send Site2 Cookies when there is a HTTP Redirection from Site1 to Site2?
– Zeigeist
Oct 2 '18 at 22:18
ad...
Add data annotations to a class generated by entity framework
...y coupled to the model and can be changed without need to even restart the site. Of course it might be overkill for your case, but it was ideal for ours!
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Handling specific errors in JavaScript (think exceptions)
... non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
– informatik01
Jul 4 '...
Why does “pip install” inside Python raise a SyntaxError?
...ot recognized" error (because I'm not the right dir). It was installed in \site-packages but I'm looking thought it and I can't find any pip.exe
– Nacht
Dec 17 '11 at 22:06
25
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Windows batch: formatted date into variable
...s XP and Windows Server 2003, but it can be downloaded from the Microsoft site. But it is built-in in everything from Windows Vista and above:
@echo off
setlocal
for /f "skip=8 tokens=2,3,4,5,6,7,8 delims=: " %%D in ('robocopy /l * \ \ /ns /nc /ndl /nfl /np /njh /XF * /XD *') do (
set "dow=%%...
How to profile methods in Scala?
... libraries for Scala that you can avail of.
Since the URLs on the linked site are likely to change, I am pasting the relevant content below.
SPerformance - Performance Testing framework aimed at automagically comparing performance tests and working inside Simple Build Tool.
scala-benchmarking-te...
What is Bootstrap?
...e using it. So I tried to research it, and I found the official Bootstrap site , but there was only a download section and a few words after that. Nothing that explains what is it for... I just understood that it is a front-end helper. I have tried to find something by Googling, but found nothing s...