使用django在数据库中保存列表中的单个值？

Question

我有一个大学名单，我想用新闻ID存储。 我的模型是这样的： -

from __future__ import unicode_literals

from django.db import models
from cms.models.universities import Universities
from cms.models.newsMappings import NewsMappings


class NewsUniversityMappings(models.Model):
    id = models.IntegerField(db_column="id", max_length=11, help_text="")
    newsMappingId = models.ForeignKey(NewsMappings, db_column='newsMappingId' ,max_length=11, help_text="")
    universityId = models.ForeignKey(Universities, db_column='universityId', max_length=11, help_text="")
    createdAt = models.DateTimeField(db_column='createdAt', auto_now=True, help_text="")

    class Meta:
        managed = False
        db_table = 'news_university_mappings'

我的观点是： -

if request.method =='POST':
            university = request.POST.getlist('universityId')
            newsId = 1;
            add_news_university_mappings = NewsUniversityMappings(universityId=university, newsMappingId=newsId)
            add_news_university_mappings.save(using="cms")
            messages.success(request, 'Successfully added to the university list')

现在，如何在数据库中再次保存大学列表中的newsid值。