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Proper way to handle multiple forms on one page in Django
...y validation errors, the second automatically wins and the first form is reset, although we still need to display the errors from the first form. Just thought you should know
– Enduriel
May 3 '13 at 16:12
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SQL is null and = null [duplicate]
..... Yes, you can assign "null" to a variable, but that just means you are unsetting or resetting that variable. 0 or "" would be a value, but null effectively means "this variable has no value".
– Sygmoral
Apr 30 '17 at 19:35
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Introducing FOREIGN KEY constraint may cause cycles or multiple cascade paths - why?
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Suppose we set CascadeOnDelete to false. Then we removed a stage record which is related with one of the Card records. What happens to Card.Stage (FK)? Does it remain same? or is it set to Null?
– ninbit
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Eclipse “Server Locations” section disabled and need to change to use Tomcat installation
I have set up a dynamic web project in Eclipse with a Tomcat 5.5 installation.
11 Answers
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Django. Override save for model
...ImageField(upload_to='folder')
description=models.CharField()
def set_image(self, val):
self._image = val
self._image_changed = True
# Or put whole logic in here
small = rescale_image(self.image,width=100,height=100)
self.image_small=SimpleUploadedFi...
When is the thread pool used?
...ke it by implementing some way of chunking up your work and manually using setTimeout or setImmediate or process.nextTick to pause your work and continue it in a later loop to let other processes complete (but that's not recommended).
Please note, if you're writing long running/blocking code in jav...
What exactly is a Context in Java? [duplicate]
...ent this interface, and at its simplest description, it (generically) is a set of name/object pairs.
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Unable to Connect to GitHub.com For Cloning
... proxy. As the answer is given but in case you are using proxy then please set your proxy first using these commands:
git config --global http.proxy http://proxy_username:proxy_password@proxy_ip:port
git config --global https.proxy https://proxy_username:proxy_password@proxy_ip:port
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What is the explanation for these bizarre JavaScript behaviours mentioned in the 'Wat' talk for Code
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
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createEditor();
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Editing screenshots in iTunes Connect after iOS app was approved
... and is Ready for Sale. The new iTunes Connect lets you upload a different set of screenshots just for the new version without affecting the current version in the App Store.
– lucius
Jul 31 '10 at 18:20
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