go-observer | Go package for simplifying channel | Pub Sub library
kandi X-RAY | go-observer Summary
kandi X-RAY | go-observer Summary
Go package for simplifying channel-based broadcasting of events from multiple publishers to multiple observers
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Top functions reviewed by kandi - BETA
- runObserver runs the given property .
- Starts a property with initial values
- runPublisher runs the publisher function .
- newState returns a new state object .
- NewProperty returns a new Property .
- Clone returns a copy of the stream .
go-observer Key Features
go-observer Examples and Code Snippets
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Trending Discussions on go-observer
QUESTION
Hello I am trying to install django-observer for python3 on my Win10 PC but I keep getting following error message:
...ANSWER
Answered 2020-Dec-10 at 20:31This django-observer
package hasn't been maintained for a long time. The github repository states it works on Python 3 version 3.2 and 3.3 though. So you might have luck setting up a virtualenv with python 3.2 or 3.3 and working from there.
The package appears to have done work similar to that of Django Signals. You can read up on them here. Signals are an implementation of the Observer pattern.
Just FYI, I tried installing the package too and got the same error on my MacOS machine. This is why I suggest switching to Signals.
QUESTION
Does DJango 2.1 have any support for observers on models?
I've looked into https://github.com/lambdalisue/django-observer, but it appears to only support up to 1.6.
My goal is that everytime a model is updated, I want to fire and command that executes other functions.
...ANSWER
Answered 2019-Jan-21 at 16:09Django supports signals that allow you to perform tasks when a model is saved to the database (either before or after it is saved). But also when a model is deleted.
Just implement a handler for one of the built-in signals, as described in the documentation linked above.
If you want to "observe" actual model changes, e.g. when a particular attribute is changed (without the need for saving to the database), then you would need to override the __setattr__
method of the class.
QUESTION
The experiment software sacred was run without MongoDB in the background with a configured mongo-observer. When it tried to write the settings to MongoDB, this failed, creating the file /tmp/sacred_mongo_fail__eErwU.pickle
, with the message
ANSWER
Answered 2017-Nov-14 at 09:38- Load the pickle file,
- set the
_id
, - insert
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