如何将 django 网站的数据永久存储到 sqlite3 数据库中？

Question

我正在尝试使用 Django 构建一个与 SQLite3 数据库连接的简历解析器网站。我上传的简历中解析的数据存储在数据库中，但每当我刷新网站时，它就会消失。我想要的是将解析后的数据永久保存到我的数据库中，每当添加新数据时，它应该具有以前的数据，并且应将新数据添加到其中。我是 Django 新手，所以这是我不知道的事情。任何帮助将不胜感激。我在下面包含了我的 models.py 文件。

from django.db import models
from django import forms
from django.forms import ClearableFileInput

# for deleting media files after record is deleted
from django.db.models.signals import post_delete
from django.dispatch import receiver

class Resume(models.Model):
    resume        = models.FileField('Upload Resumes', upload_to='resumes/')
    name          = models.CharField('Name', max_length=255, null=True, blank=True)
    email         = models.CharField('Email', max_length=255, null=True, blank=True)
    mobile_number = models.CharField('Mobile Number',  max_length=255, null=True, blank=True)
    education     = models.CharField('Education', max_length=255, null=True, blank=True)
    skills        = models.CharField('Skills', max_length=1000, null=True, blank=True)
    company_name  = models.CharField('Company Name', max_length=1000, null=True, blank=True)
    college_name  = models.CharField('College Name', max_length=1000, null=True, blank=True)
    designation   = models.CharField('Designation', max_length=1000, null=True, blank=True)
    experience    = models.CharField('Experience', max_length=1000, null=True, blank=True)
    uploaded_on   = models.DateTimeField('Uploaded On', auto_now_add=True)
    total_experience  = models.CharField('Total Experience (in Years)', max_length=1000, null=True, blank=True)

class UploadResumeModelForm(forms.ModelForm):
    class Meta:
        model = Resume
        fields = ['resume']
        widgets = {
            'resume': ClearableFileInput(attrs={'multiple': True}),
        }

#delete the resume files associated with each object or record
@receiver(post_delete, sender=Resume)
def submission_delete(sender, instance, **kwargs):
    instance.resume.delete(False)

views.py 文件如下

from django.shortcuts import render, redirect
from pyresparser import ResumeParser
from .models import Resume, UploadResumeModelForm
from django.contrib import messages
from django.conf import settings
from django.db import IntegrityError
from django.http import HttpResponse, FileResponse, Http404
import os

def homepage(request):
    if request.method == 'POST':
        Resume.objects.all().delete()
        file_form = UploadResumeModelForm(request.POST, request.FILES)
        files = request.FILES.getlist('resume')
        resumes_data = []
        if file_form.is_valid():
            for file in files:
                try:
                    # saving the file
                    resume = Resume(resume=file)
                    resume.save()
                    
                    # extracting resume entities
                    parser = ResumeParser(os.path.join(settings.MEDIA_ROOT, resume.resume.name))
                    data = parser.get_extracted_data()
                    resumes_data.append(data)
                    resume.name               = data.get('name')
                    resume.email              = data.get('email')
                    resume.mobile_number      = data.get('mobile_number')
                    if data.get('degree') is not None:
                        resume.education      = ', '.join(data.get('degree'))
                    else:
                        resume.education      = None
                    resume.company_names      = data.get('company_names')
                    resume.college_name       = data.get('college_name')
                    resume.designation        = data.get('designation')
                    resume.total_experience   = data.get('total_experience')
                    if data.get('skills') is not None:
                        resume.skills         = ', '.join(data.get('skills'))
                    else:
                        resume.skills         = None
                    if data.get('experience') is not None:
                        resume.experience     = ', '.join(data.get('experience'))
                    else:
                        resume.experience     = None
                    resume.save()
                except IntegrityError:
                    messages.warning(request, 'Duplicate resume found:', file.name)
                    return redirect('homepage')
            resumes = Resume.objects.all()
            messages.success(request, 'Resumes uploaded!')
            context = {
                'resumes': resumes,
            }
            return render(request, 'base.html', context)
    else:
        form = UploadResumeModelForm()
    return render(request, 'base.html', {'form': form})