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Django migration strategy for renaming a model and relationship fields
...ions.RenameField('YetAnotherModel', 'foo', 'bar')
]
You may get some errors if you don't update the names where it's imported e.g. admin.py and even older migration files (!).
Update: As ceasaro mentions, newer versions of Django are usually able to detect and ask if a model is renamed. So tr...
Accidentally committed .idea directory files into git
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If you get @annedroiid error of 'did not match any files', you can try and add its path. Like when I was deleting the database.yml file, I simply did 'git rm -r --cached config/database.yml'
– Kaka Ruto
Mar 15...
How to prune local tracking branches that do not exist on remote anymore
...to squash commits on merge, which gets us The branch x is not fully merged errors when running with -d.
– Mateus Gondim
Mar 9 '18 at 13:40
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Get generated id after insert
...he insert method returns the id of row just inserted or -1 if there was an error during insertion.
long id = db.insert(...);
where db is SQLiteDatabase.
share
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improve this answer
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Find running median from a stream of integers
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Count-Min Sketch is better than P^2 in that it also gives error bound while the latter does not.
– sinoTrinity
Feb 25 '15 at 17:29
1
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What 'sensitive information' could be disclosed when setting JsonRequestBehavior to AllowGet
I've been getting the same old error every time I test a new URL from my browser's address bar when I'm returning Json (using the built-in MVC JsonResult helper ):
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How to overcome root domain CNAME restrictions?
...uld be
present;
And Per IETF 'Common DNS Operational and Configuration Errors' Document:
This is often attempted by inexperienced administrators as an obvious
way to allow your domain name to also be a host. However, DNS
servers like BIND will see the CNAME and refuse to add any o...
What is the standard Python docstring format? [closed]
... second param
@return: this is a description of what is returned
@raise keyError: raises an exception
"""
- reST
Nowadays, the probably more prevalent format is the reStructuredText (reST) format that is used by Sphinx to generate documentation.
Note: it is used by default in JetBrains PyCharm (t...
Is there a performance difference between a for loop and a for-each loop?
...oduced in
release 1.5, gets rid of the clutter
and the opportunity for error by
hiding the iterator or index variable
completely. The resulting idiom
applies equally to collections and
arrays:
// The preferred idiom for iterating over collections and arrays
for (Element e : elements) {
...
How to import existing *.sql files in PostgreSQL 8.4?
...rom my local machine. I tried \i [full path with extension] but I get the error message .sql no such file or directory. Could you please give an example.
– user2403573
Jun 29 '13 at 11:47
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