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Django self-referential foreign key
I'm kind of new to webapps and database stuff in general so this might be a dumb question. I want to make a model ("CategoryModel") with a field that points to the primary id of another instance of the model (its parent).
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How to create abstract properties in python abstract classes
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Since Python 3.3 a bug was fixed meaning the property() decorator is now correctly identified as abstract when applied to an abstract method.
Note: Order matters, you have to use @property before @abstractmethod
Python 3.3+: (python docs):
cl...
What does the tilde (~) mean in my composer.json file?
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Tilde means next significant release. In your case, it is equivalent to >= 2.0, < 3.0.
The full explanation is at Tilde Version Range docs page:
The ~ operator is best explained by example: ~1.2 is equivalent to >=1.2 <2.0.0, while ~1.2.3 is equivalen...
How to style a JSON block in Github Wiki?
Is there a way to nicely format/style JSON code in Github Wiki (i.e Markdown preferred)?
4 Answers
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Can anybody push to my project on github?
I am new to git as well as github. I set up a repo on github, and I can push local stuff to this remote repo. Now here is the question: just after I push something to the remote repo, and I refresh the page, I can see the changes are uploaded(for example, if I wrote a readme.txt and push it to the r...
MySQL ON DUPLICATE KEY UPDATE for multiple rows insert in single query
I have a SQL query where I want to insert multiple rows in single query. so I used something like:
3 Answers
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Mocking objects with Moq when constructor has parameters
I have an object I'm trying to mock using moq. The object's constructor has required parameters:
2 Answers
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Get all git commits since last tag
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git log <yourlasttag>..HEAD ?
If you want them like in your example, on the one line with commit id + message, then
git log <yourlasttag>..HEAD --oneline
and in case you don't know your latest tag or want this to be dynamic,...
Using SignalR with Redis messagebus failover using BookSleeve's ConnectionUtils.Connect()
I am trying to create a Redis message bus failover scenario with a SignalR app.
1 Answer
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Java “user.dir” property - what exactly does it mean?
I want to use user.dir dir as a base dir for my unit tests (that creates a lot of files). Is it correct that this property points to the current working directory (e.g. set by the 'cd' command)?
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