DEV Community: Jaweher Ben Salah

JMeter-Dynamic Load Testing of Restful APIs

Jaweher Ben Salah — Thu, 01 Feb 2024 12:35:34 +0000

JMeter-Dynamic Load Testing of Restful APIs

UniqueValidator in drf

Jaweher Ben Salah — Mon, 08 Jan 2024 12:45:20 +0000

Feb 3 '21 Comments: 1 Answers: 3

my model has a field:

name = models.CharField(max_length=255, blank=True, null=True)

in serializer, I am trying to raise a unique validation error

name = serializers.CharField(validators=[UniqueValidator(queryset=Department.objects.all()
                                        message=("Name already exists"))])

but it does not work, because the data comes to the serializer in this format name: {en: "drink"}, in db fields are…

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Answer: How do I undo the most recent local commits in Git?

Jaweher Ben Salah — Mon, 17 Jul 2023 09:54:21 +0000

Dec 9 '22

A simple step-by-step guide is as follows:

Destroy a commit and throw away any uncommitted changes
```
git reset --hard HEAD~1
```
Undo the commit, but keep your changes
```
git reset HEAD~1
```
Keep your files, and stage all changes back automatically
```
git reset --soft HEAD~1
```
Resurrect a commit you destroyed
```
git reflog
```
…

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Answer: master branch and 'origin/master' have diverged, how to 'undiverge' branches'?

Jaweher Ben Salah — Tue, 20 Jun 2023 11:06:44 +0000

Mar 16 '10

1297

You can review the differences with a:

git log HEAD..origin/main
# old repositories
git log HEAD..origin/master

before pulling it (fetch + merge) (see also "How do you get git to always pull from a specific branch?")

Note: since Git 2.28 (Q3 2020), the default branch is configurable, and…

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Answer: Visual Studio Code: Intellisense not working

Jaweher Ben Salah — Mon, 12 Jun 2023 17:03:42 +0000

Oct 12 '21

I just disabled Pylance in the extensions and suggestions worked again instantly.

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Why object is not being created while running Django TestCase

Jaweher Ben Salah — Sat, 10 Jun 2023 21:13:23 +0000

Jun 7 '21 Comments: 1 Answers: 1

I created a simple model test case using TestCase class. I created an object using setUp function and test the count of the object using assertEqual inside another function.

The test ran successfully, but when I check the Django admin, there was no object that I just created, and also…

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https://docs.djangoproject.com/en/3.2/topics/testing/overview/#the-test-database

Answer: Docker-compose up : Error while fetching server API version: https://stackoverflow.com/a/76329637/11139658

Jaweher Ben Salah — Tue, 06 Jun 2023 19:47:07 +0000

May 25 '23

you can give docker socket read and write permission for other users by executing this command in your machine

sudo chmod o+rw /var/run/docker.sock

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Answer: Docker-compose up : Error while fetching server API version: https://stackoverflow.com/a/65240108/11139658

Jaweher Ben Salah — Tue, 06 Jun 2023 19:19:00 +0000

Dec 10 '20

213

Add your user to docker group and try again.

sudo gpasswd -a $USER docker
newgrp docker

If you still have the problem, you may try after logging out and login back, or reboot. Or simply do:

sudo su $USER

Note: this may also happens if docker is not running on…

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Answer: `git fetch` a remote branch

Jaweher Ben Salah — Fri, 19 May 2023 17:42:26 +0000

Oct 6 '17

202

fetch the branch locally:

git fetch origin <branchName>

move to that branch:

git checkout <branchName>

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Answer: How to fix 'The project you were looking for could not be found' when using git clone

Jaweher Ben Salah — Tue, 16 May 2023 14:48:46 +0000

Apr 19 '21

First of all verify your credentials are correct.

git config user.email
git config user.name

If they are correct, try appending your username@ before your repo address.

E.g. Instead of

git clone https://repo.abc.com/projectname.git

Try

git clone https://username@repo.abc.com/projectname.git

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Answer: In numpy.sum() there is parameter called "keepdims". What does it do?

Jaweher Ben Salah — Sat, 13 May 2023 23:05:29 +0000

May 1 '19

An example showing keepdims in action when working with higher dimensional arrays. Let's see how the shape of the array changes as we do different reductions:

import numpy as np
a = np.random.rand(2,3,4)
a.shape
# => (2, 3, 4)
# Note: axis=0 refers to the first dimension of size 2

…

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Answer: What's the cleanest, simplest-to-get running datepicker in Django?

Jaweher Ben Salah — Fri, 16 Sep 2022 01:34:20 +0000

Aug 6 '16

Django's TextInput widget (and all of its subclasses) support specifying a type attribute to set the type of form.

You can use this to set the input type to date (W3C specification), for example in the following way :

date = fields.DateField(widget=forms.widgets.DateInput(attrs={'type': 'date'}))

To apply this on a…

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