# Django Lookup Property
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```shell
pip install django-lookup-property
```
---
**Documentation**: [https://mrthearman.github.io/django-lookup-property/](https://mrthearman.github.io/django-lookup-property/)
**Source Code**: [https://github.com/MrThearMan/django-lookup-property/](https://github.com/MrThearMan/django-lookup-property/)
**Contributing**: [https://github.com/MrThearMan/django-lookup-property/blob/main/CONTRIBUTING.md](https://github.com/MrThearMan/django-lookup-property/blob/main/CONTRIBUTING.md)
---
Django model properties that are also lookup expressions.
```python
from lookup_property import lookup_property
from django.db import models
from django.db.models import Value
from django.db.models.functions import Concat
class Student(models.Model):
first_name = models.CharField(max_length=50)
last_name = models.CharField(max_length=50)
@lookup_property
def full_name():
return Concat("first_name", Value(" "), "last_name")
```
```pycon
>>> from myapp.models import Student
>>> from lookup_property import L
>>>
>>> Student.objects.create(first_name="John", last_name="Doe")
>>> student = Student.objects.filter(L(full_name="John Doe")).first()
>>>
>>> student.full_name
'John Doe'
```
[coverage-badge]: https://coveralls.io/repos/github/MrThearMan/django-lookup-property/badge.svg?branch=main
[status-badge]: https://img.shields.io/github/actions/workflow/status/MrThearMan/django-lookup-property/test.yml?branch=main
[pypi-badge]: https://img.shields.io/pypi/v/django-lookup-property
[licence-badge]: https://img.shields.io/github/license/MrThearMan/django-lookup-property
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[coverage]: https://coveralls.io/github/MrThearMan/django-lookup-property?branch=main
[status]: https://github.com/MrThearMan/django-lookup-property/actions/workflows/test.yml
[pypi]: https://pypi.org/project/django-lookup-property
[licence]: https://github.com/MrThearMan/django-lookup-property/blob/main/LICENSE
[repo]: https://github.com/MrThearMan/django-lookup-property/commits/main
[issues]: https://github.com/MrThearMan/django-lookup-property/issues
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"description": "# Django Lookup Property\n\n[![Coverage Status][coverage-badge]][coverage]\n[![GitHub Workflow Status][status-badge]][status]\n[![PyPI][pypi-badge]][pypi]\n[![GitHub][licence-badge]][licence]\n[![GitHub Last Commit][repo-badge]][repo]\n[![GitHub Issues][issues-badge]][issues]\n[![Downloads][downloads-badge]][pypi]\n[![Python Version][version-badge]][pypi]\n\n```shell\npip install django-lookup-property\n```\n\n---\n\n**Documentation**: [https://mrthearman.github.io/django-lookup-property/](https://mrthearman.github.io/django-lookup-property/)\n\n**Source Code**: [https://github.com/MrThearMan/django-lookup-property/](https://github.com/MrThearMan/django-lookup-property/)\n\n**Contributing**: [https://github.com/MrThearMan/django-lookup-property/blob/main/CONTRIBUTING.md](https://github.com/MrThearMan/django-lookup-property/blob/main/CONTRIBUTING.md)\n\n---\n\nDjango model properties that are also lookup expressions.\n\n```python\nfrom lookup_property import lookup_property\nfrom django.db import models\nfrom django.db.models import Value\nfrom django.db.models.functions import Concat\n\nclass Student(models.Model):\n first_name = models.CharField(max_length=50)\n last_name = models.CharField(max_length=50)\n\n @lookup_property\n def full_name():\n return Concat(\"first_name\", Value(\" \"), \"last_name\")\n```\n```pycon\n>>> from myapp.models import Student\n>>> from lookup_property import L\n>>>\n>>> Student.objects.create(first_name=\"John\", last_name=\"Doe\")\n>>> student = Student.objects.filter(L(full_name=\"John Doe\")).first()\n>>>\n>>> student.full_name\n'John Doe'\n```\n\n[coverage-badge]: https://coveralls.io/repos/github/MrThearMan/django-lookup-property/badge.svg?branch=main\n[status-badge]: https://img.shields.io/github/actions/workflow/status/MrThearMan/django-lookup-property/test.yml?branch=main\n[pypi-badge]: https://img.shields.io/pypi/v/django-lookup-property\n[licence-badge]: https://img.shields.io/github/license/MrThearMan/django-lookup-property\n[repo-badge]: https://img.shields.io/github/last-commit/MrThearMan/django-lookup-property\n[issues-badge]: https://img.shields.io/github/issues-raw/MrThearMan/django-lookup-property\n[version-badge]: https://img.shields.io/pypi/pyversions/django-lookup-property\n[downloads-badge]: https://img.shields.io/pypi/dm/django-lookup-property\n\n[coverage]: https://coveralls.io/github/MrThearMan/django-lookup-property?branch=main\n[status]: https://github.com/MrThearMan/django-lookup-property/actions/workflows/test.yml\n[pypi]: https://pypi.org/project/django-lookup-property\n[licence]: https://github.com/MrThearMan/django-lookup-property/blob/main/LICENSE\n[repo]: https://github.com/MrThearMan/django-lookup-property/commits/main\n[issues]: https://github.com/MrThearMan/django-lookup-property/issues\n",
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