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Django admin: How to display a field that is marked as editable=False' in the model?
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oOops. Typical fast-shot. Did not test, seems to be a problem with my installation. Thanks, and sorry.
– nerdoc
Sep 6 '18 at 15:35
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How do I import the Django DoesNotExist exception?
I'm trying to create a UnitTest to verify that an object has been deleted.
6 Answers
6...
How to run a program without an operating system?
...t treat this as a bootable disk.
If you are not a printf master, you can confirm the contents of main.img with:
hd main.img
which shows the expected:
00000000 f4 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |. |
00000010 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | ...
LINQ, Where() vs FindAll()
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I did some tests on a list of 80K objects and found that Find() can be up to 1000% faster than using a Where with FirstOrDefault(). I didn't know that until testing a timer before and after each call. Sometimes it was the same time, o...
Convert a char to upper case using regular expressions (EditPad Pro)
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TextPad will allow you to perform this operation.
example:
test this sentence
Find what: \([^ ]*\) \(.*\)
Replace with: \U\1\E \2
the \U will cause all following chars to be upper
the \E will turn off the \U
the result will be:
TEST this sentence
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Preferred Github workflow for updating a pull request after code review
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$ git fetch parent
$ git log --oneline parent/master..master
e4e32b8 add test case as per PR comments
eccaa56 code standard fixes as per PR comments
fb30112 correct typos and fatal error
58ae094 fixing problem
It's a good idea to squash things together so they appear as a single commit:
$ git r...
Specifying Maven's local repository location as a CLI parameter
...(At least I'm pretty sure it works that way on both windows and linux, but testing will tell.)
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Maven dependency for Servlet 3.0 API?
...endencies have been replaced by Java EE 6 Profiles. Is there a source that confirms this assumption?
The maven repository from Java.net indeed offers the following artifact for the WebProfile:
<repositories>
<repository>
<id>java.net2</id>
<name>Repository ...
Git fetch remote branch
...r, this is enough (it might have started earlier, but this is the earliest confirmation I could find quickly):
git checkout daves_branch
Note that with recent Git versions, this command will not create a local branch and will put you in a 'detached HEAD' state. If you want a local branch, use the...
How do I combine two data frames?
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1st dataFrame
train.shape
result:-
(31962, 3)
2nd dataFrame
test.shape
result:-
(17197, 2)
Combine
new_data=train.append(test,ignore_index=True)
Check
new_data.shape
result:-
(49159, 3)
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