Django 1.9 - JSONField in Models

Question

I\'m trying to set up a models file in Django 1.9 using the new JSONField. I have found examples using postgres but none with MySql. In the examples with postgres they do

Answer 1

Try to save data of this model in postgres db on my local machine:

models.py:

from django.db import models
from django import forms
 
from inputData.models import Input
 
from django.contrib.postgres.fields import JSONField
 
class Results(models.Model):
 
    generator = models.OneToOneField(Input, on_delete = models.CASCADE, primary_key = True)
 
    pvalues = JSONField()

views.py

def result(req, res_id):
    try:
        inp = Input.objects.get(pk = res_id)
        path = os.path.join(BASE_DIR, 'uploads\\' + str(res_id) + '\\t.txt')
        p_values = parse_res.main(path) 
        res = Results(generator = inp, pvalues = p_values)
        res.save(using = 'results')
    except Results.DoesNotExist:
        raise Http404
    return render(req, 'result.html', {'res': res})

settings.py

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    },
    'results': {
        'ENGINE':'django.db.backends.postgresql',
        'NAME': 'results',
        'PASSWORD': 'password',
        'USER': 'user',
        'HOST': '127.0.0.1',
        'PORT': '8000'

    }
    
}

Model Results (see models.py) uses JSONField, which have about 200 bytes of data But at the line res.save(... of code views.py browser does response too long.

Whatäs wrong with JSON? What problems can be on server besides cache?