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How to create abstract properties in python abstract classes
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Until Python 3.3, you cannot nest @abstractmethod and @property.
Use @abstractproperty to create abstract properties (docs).
from abc import ABCMeta, abstractmethod, abstractproperty
class Base(object):
# ...
@abstractproperty
def n...
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 ...
How to style a JSON block in Github Wiki?
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Some color-syntaxing enrichment can be applied with the following blockcode syntax
```json
Here goes your json object definition
```
Note: This won't prettify the json representation. To do so, one can previously rely on an external service such as jsbea...
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
...', 21),
('Samia', 22),
('Hui Ling', 25),
('Yumie', 29)
ON DUPLICATE KEY UPDATE
age = VALUES(age),
...
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Mocking objects with Moq when constructor has parameters
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The last line is giving you a real instance because you are using the new keyword, not mocking CustomerSyncEngine.
You should use Mock.Of<CustomerSyncEngine>()
The only problem with Mocking Concrete types is that Moq would need a public default constructor(with ...
Get all git commits since last tag
...it id + message, then
git log <yourlasttag>..HEAD --oneline
and in case you don't know your latest tag or want this to be dynamic, on windows you could do
for /f "delims=" %a in ('git describe --tags --abbrev^=0') do @set latesttag=%a
git log %latesttag%..HEAD --oneline
and on linux / git...
Using SignalR with Redis messagebus failover using BookSleeve's ConnectionUtils.Connect()
...ossible.
Now, with the evolution of BookSleeve to StackExchange.Redis, we can now configure collection of servers/ports right in the Connect initialization.
The new implementation is much simpler than the road I was going down, in creating a UseRedisCluster method, and the back-end pluming now sup...
Java “user.dir” property - what exactly does it mean?
... started the JVM. Does not have to be within the user's home directory. It can be anywhere where the user has permission to run java.
So if you cd into /somedir, then run your program, user.dir will be /somedir.
A different property, user.home, refers to the user directory. As in /Users/myuser o...
“Ago” date/time functions in Ruby/Rails
I was wondering if there's a way in Rails to calculate time stamp like - half a minute ago, 2 minute ago, 1 day ago etc. Something like twitter real time date stamp.
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