Searching in MySQL JSON field in Django
MySQL has introduced JSON fields in MySQL Server 5.7, Currently it works well with jsonfield for Data Saving and retrieval. The problem that Searching can only be done through LIKE operator which isn't convinent for all function.
Creating a new custom lookup operator "has" for Django that will support JSON Search in MySQL.
$ pip install jsonLookupfrom jsonLookup import hasLookup,jcontainsLookup
JSONField.register_lookup(hasLookup)
JSONField.register_lookup(jcontainsLookup)# Create test objects
User.objects.create(name="Ahmed",properties={"city":"Giza","Address":{"district":"Ahram","Code":11263}})
User.objects.create(name="Mohamed",properties={"city":"Cairo","Address":{"district":"Helipolis","Code":11351}})
# Run first query
q = User.objects.filter(properties__has="$.city=Giza")
print q[0].name
"Ahmed"
# Run Second query
q= User.objects.filter(properties__has="$.Address.Code=11351")
print q[0].name
"Mohamed"