Lucene way search in django

("Django" AND "DRF") OR "Elasticserach-DSL"

---

Installation

Only for Django with DRF:

pip install lucyfer

For Django with DRF and Elasticsearch-dsl:

pip install lucyfer[full]

Dependencies

	lucyfer	lucyfer[full]
lucyparser	+	+
Django	+	+
djangorestframework	+	+
elasticsearch-dsl	-	+

Usage Example

---

Create your search backend class:

from lucyfer.backend import LuceneSearchFilter, DjangoLuceneSearchFilterMixin, ElasticLuceneSearchFilterMixin


class SearchBackend(DjangoLuceneSearchFilterMixin, ElasticLuceneSearchFilterMixin, LuceneSearchFilter):
    pass

Copy reference to SearchBackend class and include it in DEFAULT_FILTER_BACKENDS in settings.py instead of default search backend:

REST_FRAMEWORK = {
    'DEFAULT_FILTER_BACKENDS': ('path.to.SearchBackend',)
}

Create searchsets.py file in your django-application and fill it:

from lucyfer.searchset import DjangoSearchSet
from lucyfer.searchset.fields.django import DjangoCharField

from .models import MyModel


class MyModelSearchSet(DjangoSearchSet):
    some_field = DjangoCharField(sources=["another_field__name"], exclude_sources_from_mapping=True)

    class Meta:
        model = MyModel

    fields_to_exclude_from_mapping = ['field_to_exclude_from_mapping', ]

Include searchset class in your ModelViewSet:

from rest_framework.viewsets import ModelViewSet

from .searchsets import MyModelSearchSet


class MyModelViewSet(ModelViewSet):
    search_class = MyModelSearchSet

You have to save search_fields in your ModelViewSet if you want to save custom search possibility.

Now you can use lucene-way syntax for your view.

Tests execution:

pytest tests/test_* -c tests/pytest.ini