[Solved] You want to implement a Django ListView that allows users to search products by name and order results by price or rating.... Which is the best way to implement get_queryset? | Django

Django - DRF Advanced Features

You want to implement a Django ListView that allows users to search products by name and order results by price or rating. You also want to prevent invalid ordering fields from causing errors. Which is the best way to implement get_queryset?

AFilter by search term, then order only if order param is in allowed list ['price', 'rating']

BFilter by search term, order by any order param without validation

COrder first by order param, then filter by search term

DIgnore search and order, just return all products

Step-by-Step Solution

Solution:

Step 1: Understand the need for validation of ordering fields
Allowing only specific fields prevents errors and security issues.
Step 2: Apply filtering before ordering and validate order param
Filter products by search term, then order only if order param is in ['price', 'rating'].
Final Answer:
Filter by search term, then order only if order param is in allowed list ['price', 'rating'] -> Option A
Quick Check:
Validate order param before ordering = Filter by search term, then order only if order param is in allowed list ['price', 'rating'] [OK]

Quick Trick: Validate order fields before ordering queryset [OK]

Common Mistakes:

MISTAKES

Ordering without checking allowed fields
Ordering before filtering
Ignoring search parameter completely

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Which is the best way to implement get_queryset?

Step 1: Understand the need for validation of ordering fields

Step 2: Apply filtering before ordering and validate order param

Final Answer:

Quick Check:

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