drf-easy-crud 2.1.1

Easy CRUD operations for Django REST Framework.

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DRF Easy CRUD

Enterprise-grade utility library for simplifying CRUD operations in Django REST Framework. Provides powerful filtering, pagination, and standardized CRUD methods to accelerate API development.

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Installation

uv add drf-easy-crud

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Features

• 🔧 Simplified CRUD Operations: Static utility methods for GET, POST, PUT, PATCH, and DELETE operations
• 🔍 Advanced Filtering: Wildcard pattern matching for text fields, comparison operators for numeric fields
• 📄 Built-in Pagination: Standard pagination with configurable page sizes
• 🔗 ForeignKey Support: Filter across related models using Django's double-underscore lookup syntax
• 🛡️ Enterprise-Grade Error Handling: Comprehensive error handling with detailed logging
• 📊 Type-Safe: Full type hints for better IDE support and code reliability
• ⚡ Performance Optimized: Efficient queryset handling with optional hooks for customization

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Quick Start

Basic Usage

from rest_framework import viewsets
from rest_framework.request import Request
from rest_framework.response import Response

from drf_easy_crud import CRUDUtils
from myapp.models import MyModel
from myapp.serializers import MyModelSerializer


class MyModelViewSet(viewsets.ViewSet):
    """Example ViewSet using CRUDUtils."""

    def get(self, request: Request, pk: int | None = None) -> Response:
        """List all instances or retrieve a single one by pk."""
        return CRUDUtils.get(
            request=request,
            queryset=MyModel,
            serializer_class=MyModelSerializer,
            pk=pk,
        )

    def post(self, request: Request) -> Response:
        """Create a new instance."""
        return CRUDUtils.post(
            request=request,
            serializer_class=MyModelSerializer,
        )

    def put(self, request: Request, pk: int) -> Response:
        """Full update of an instance."""
        return CRUDUtils.put(
            request=request,
            queryset=MyModel,
            serializer_class=MyModelSerializer,
            pk=pk,
        )

    def patch(self, request: Request, pk: int) -> Response:
        """Partial update of an instance."""
        return CRUDUtils.patch(
            request=request,
            queryset=MyModel,
            serializer_class=MyModelSerializer,
            pk=pk,
        )

    def delete(self, request: Request, pk: int) -> Response:
        """Delete an instance."""
        return CRUDUtils.delete(
            request=request,
            queryset=MyModel,
            pk=pk,
        )

Advanced Features

Pre-scoped Querysets

Pass a pre-filtered queryset instead of a model class for full control:

def list(self, request: Request) -> Response:
    """List only active instances belonging to the current user."""
    return CRUDUtils.get(
        request=request,
        queryset=MyModel.objects.filter(is_active=True, owner=request.user),
        serializer_class=MyModelSerializer,
    )

Custom Pagination

Use your own pagination class:

from drf_easy_crud import CRUDUtils, StandardResultsSetPagination
from rest_framework.pagination import PageNumberPagination


class CustomPagination(PageNumberPagination):
    page_size = 50
    max_page_size = 200


def list(self, request: Request) -> Response:
    return CRUDUtils.get(
        request=request,
        queryset=MyModel,
        serializer_class=MyModelSerializer,
        pagination_class=CustomPagination,
    )

Custom Ordering

Specify default ordering for list endpoints:

def list(self, request: Request) -> Response:
    return CRUDUtils.get(
        request=request,
        queryset=MyModel,
        serializer_class=MyModelSerializer,
        ordering_field="-created_at",  # Newest first
    )

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Filtering

The library provides powerful filtering capabilities through FilterUtils:

Text Field Wildcard Patterns

Pattern	Description	Example	Matches
field=value*	Starts with	?name=test*	"test", "test123", "testing"
field=*value	Ends with	?name=*test	"mytest", "123test"
field=*value*	Contains	?name=*test*	"test", "mytest", "testing"
field=va*ue	Middle wildcard	?name=t*t	"test", "tart", "t123t"
field=value	Exact match	?name=test	"test" (case-insensitive)

Number Field Comparison Operators

Pattern	Description	Example	Matches
field=value	Exact match	?age=25	Exactly 25
field=>=value	Greater than or equal	?age=>=25	25, 26, 27, ...
field=<=value	Less than or equal	?age=<=100	..., 98, 99, 100
field=>value	Greater than	?age=>25	26, 27, 28, ...
field=<value	Less than	?age=<25	..., 23, 24

ForeignKey Lookups

Filter by related model fields using double underscores:

# Filter by related model's text field
GET /api/products/?category__name=electronics*

# Filter by related model's number field
GET /api/products/?category__priority=>=5

# Nested ForeignKey lookup
GET /api/orders/?customer__company__name=acme*

Filtering Examples

# Search by name starting with "test"
GET /api/mymodel/?name=test*

# Search by name containing "important"
GET /api/mymodel/?name=*important*

# Filter by age >= 18
GET /api/mymodel/?age=>=18

# Filter by age between 18 and 30
GET /api/mymodel/?age=18-30

# Multiple filters combined
GET /api/mymodel/?name=test*&age=>=18&status=active

# ForeignKey lookup
GET /api/mymodel/?category__name=electronics*

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Pagination

Results are paginated by default (20 items per page, max 100).

Pagination Parameters

• page - Page number (default: 1)
• page_size - Items per page (default: 20, max: 100)

Paginated Response Format

{
  "count": 150,
  "next": "http://example.com/api/mymodel/?page=2",
  "previous": null,
  "results": [
    {
      "id": 1,
      "name": "Item 1",
      ...
    },
    ...
  ]
}

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🤝 Contributing

If you have a helpful tool, pattern, or improvement to suggest: Fork the repo
Create a new branch
Submit a pull request
I welcome additions that promote clean, productive, and maintainable development.

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🙏 Thanks

Thanks for exploring this repository!
Happy coding!