Answer by Amir Afianian for How to add data from one model to other django?
Provided that your Person model has a relation to Comment models, simply add depth = 1 in your Person serializer as follows:class PersonSerializer(serializers.ModelSerializer): user = UserSerializer()...
View ArticleHow do I retrieve a value of a field in a queryset object
I'm new to django and have the following model:class MainFile(models.Model): owner = models.ForeignKey(User) # docfile = models.FileField(verbose_name= 'Enter you file', null=True) file_id =...
View ArticleHow to Run Tests for Installed Django Apps Using Pytest
Using the traditional unit test, I can run tests for an installed Django app using the command: python manage.py test <name_of_the_installed_app>But this is not the case when using pytest as the...
View ArticleHow to instruct pip to install a requirement with --no-binary flag
I have an app that I want to package which is dependent on protobuf. It is essential that protobuf be installed as such:pip install protobuf --no-binary=protobuf protobufHow can I include this inside...
View ArticleAnswer by Amir Afianian for Sort dictionary as per length of values
Easy way if you are sure that your keys will be integers:d = {key: value for key, value in sorted(d.items())}
View ArticleAnswer by Amir Afianian for Override the third party view for end-point
You must take two steps:Step 1: Override the ConvertTokenView view to include your desired fields as such:class MyCustumConvertTokenView(CsrfExemptMixin, OAuthLibMixin, APIView):""" Implements an...
View ArticleHow to mock django settings attributes in pytest-django
When using Django default unittest it's trivial to patch settings attributes (using @override_settings decorator for instance.)I'd like to override several attributes of my settings for a test method....
View ArticleAnswer by Amir Afianian for Access different serializer if a queryset is...
This is the correct practice to change serializer class in ModelViewSet:You have to override get_serializesr_class method:class SavedVenuesViewSet(viewsets.ModelViewSet): serializer_class =...
View ArticleWhat is the best practice for keeping Kafka consumer alive in python?
Something is puzzling for me when it comes to keeping consumers alive. Let's say I have a topic to which data is constantly being written. But, in an hour in a day, there are no new messages. If I had...
View ArticleHow to write a very large json into kafka using python
I have a JSON of 4.6 GB size with the following structure:[ {...}, {...}, ...]I want a python code to read this JSON and write them into a Kafka topic with 16 partitions as much as possible.One...
View ArticleHow to change __init__ param before instantiation
I want to achieve a simple interface as such:IsAllowed(perms=[IsAdmin(runtime_value) | HasPerm('*')])Since some variables upon instantiation are not available, I have to postpone the evaluation of...
View ArticleHow to Register A Flink Table from Data Stream that contains arrays
I have a kinesis stream input structure as follows:{'customer_id': UUID,'sensor_id': UUID,'timestamps': [ ... ],'values': [ ...]},...What I want to do is to create a table from this input and flatten...
View ArticlePyFlink: What's the best way to provide reference data and keep them uptated
I have a use case where I want to do comparisons between incoming data and some reference data provided by another service.What's the best way in pyflink to fetch those data and update them regularly...
View ArticleHow do I get child process PIDs when using ProcessPoolExecuter?
I'm using ProcessPoolExecutor context manager to run several Kafka consumers in parallel. I need to store the process IDs of the child processes so that later, I can cleanly terminate those processes....
View ArticleHow to use multiple autoloader with a single data live table
I have a scenario in which I have two different buckets in which my data land as source data, and I want to read and process them into bronze data.The data inside each of those buckets have totally...
View ArticleHow to serve a created tempfile in django
I have a remote storage project that when the user requests his file, the django server retrieves and stores the file locally (for some processing) as a temporary file and then serves it to the user...
View ArticleAnswer by Amir Afianian for Path conflict between server and client
There are several things you can try1. Auto-add trailing slashMake sure 'django.middleware.common.CommonMiddleware' is within your middle_wares in settings.pyIn addition, make sure APPEND_SLASH = True...
View ArticleComment by Amir Afianian on How to instruct pip to install a requirement with...
Unfortunately not in the way I wanted. Resolved it on a different level. (Container)
View ArticleHow to track hierarchy of usage in pycharm
Let's say I have defined a low-level dataclass or pydantic model. What I want is to find the hierarchy of all the objects (functions, classes, etc.) that directly or indirectly depend on that model.I...
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