[Django]-How can I store an array of strings in a Django model?

You can use some serialization mechanism like JSON. There’s a snippet with field definition that could be of some use to you:

http://djangosnippets.org/snippets/1478/ (take a look at the code in the last comment)

With such field you can seamlessly put strings into a list and assign them to such field. The field abstraction will do the rest. The same with reading.

If you are using PostgreSQL or MongoDB(with djongo) you can do this

For PostgreSQL:

from django.contrib.postgres.fields import ArrayField

For MongoDB(with Djongo):

from djongo import models
from django.contrib.postgres.fields import ArrayField

Then

stringArr = ArrayField(models.CharField(max_length=10, blank=True),size=8)

The above works in both cases.

I did this for my model and it worked

from django.contrib.postgres.fields import ArrayField
from django.db import models


class Skill(models.Model):
    name = models.CharField(max_length=50)
    skills = ArrayField(models.CharField(max_length=200), blank=True)

To create

Skill.objects.create(name='First name', skills=['thoughts', 'django'])

To Query

Skill.objects.filter(skills__contains=['thoughts'])

You can refer to the django documentation for more help

https://docs.djangoproject.com/en/3.0/ref/contrib/postgres/fields/

I hope this helps

You can use cPickle…

class myClass(models.Model):
    title = models.CharField(max_length=50)
    stringArr = models.TextField()

from cPickle import loads, dumps
data = [ { 'a':'A', 'b':2, 'c':3.0 } ]
obj = Myclass.objects.get(pk=???)
# pickle data into a string-like format
obj.stringArr = dumps(data)
obj.save()
# restore original data
data = loads(obj.stringArr)

You can use JSONField for such functionality:

from django.db import models
from django.contrib.postgres.fields import JSONField

class TestModel(models.Model):
    title = models.CharField(max_length=100)
    strings = JSONField(default=list, blank=True, null=True)

    def __str__(self):
        return self.title

for example:

In [1]: fruits = ['banana', 'apple', 'orange']                                                                                                                                         

In [2]: TestModel.objects.create(title='my set', strings=fruits)                                                                                                                       
Out[2]: <TestModel: my set>

In [3]: o = TestModel.objects.first()                                                                                                                                                  

In [4]: o.strings                                                                                                                                                                      
Out[4]: ['banana', 'apple', 'orange']