[Solved] Identify the error in this signal receiver code: from django.db.models.signals import post_save from django.... | Django

Django - Signals

Identify the error in this signal receiver code:

from django.db.models.signals import post_save
from django.dispatch import receiver

@receiver(post_save, sender=Author)
def handle_save(instance, **kwargs):
    print(f"Author saved: {instance.name}")

AIncorrect decorator usage, should not use <code>sender</code>

BMissing <code>sender</code> parameter in function definition

CFunction name must be <code>post_save_handler</code>

DNo error, code is correct

Step-by-Step Solution

Solution:

Step 1: Check function parameters for signal handlers
Signal handlers must accept sender, instance, and **kwargs.
Step 2: Identify missing parameter
The function handle_save lacks the sender parameter, causing an error.
Final Answer:
Missing sender parameter in function definition -> Option B
Quick Check:
Signal handler must have sender parameter = A [OK]

Quick Trick: Signal handlers need sender, instance, **kwargs parameters [OK]

Common Mistakes:

MISTAKES

Omitting sender parameter
Wrong function signature order
Assuming function name matters

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More Django Quizzes

Identify the error in this signal receiver code:

Step 1: Check function parameters for signal handlers

Step 2: Identify missing parameter

Final Answer:

Quick Check:

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