Search by entering to value in JSONField PostgreSQL
Алексей Кузуб
Hi! I work with poorly structured data. I use EAV. But I want to replace EAV with jsonb in postgresql. I need to do a search by entering to value in json.values(). Is it possible? Is there some decision on Django or SQL?For example, there is the model
class SomeModel(models.Model):
data = JSONField()
That jsons stored in rows in data field:
{"name": "Michael", "friend_name": "Sara"}
{"name": "Miranda", "friend_name": "Richard"}
If I type "ar" in search input I want to get both rows("ar" in "Sara", "ar" in "Miranda"), "cha" - both rows( "cha" in "Michael", "ar" in "Richard"), "ir" - only one ("ir" in "Miranda"), "asdq" - nothing. Is it possible with Django? Is it possible with SQL? Thank you and sorry for my English.
Michael MacIntosh
Hi,
Did you try
SomeModel.objects.filter(data__name__contains="ar")
If you want to union the results from both fields you can use a Q object:
https://docs.djangoproject.com/en/2.0/topics/db/queries/#complex-lookups-with-q-objects
And that would look something like:
complex_query = Q(data__name__contains="ar") |
Q(data__friend_name__contains="ar)
SomeModel.objects.filter( complex_query )
Hope that helps.
Cheers!
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