feat: add Resume model with JSONB fields and file upload

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

offer_backend/apps/resumes/migrations/0001_initial.py

@@ -0,0 +1,34 @@
+# Generated by Django 4.2.20 on 2026-03-24 09:43
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Resume',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=50, verbose_name='姓名')),
+                ('gender', models.CharField(blank=True, choices=[('male', '男'), ('female', '女'), ('other', '其他')], max_length=10)),
+                ('birthday', models.DateField(blank=True, null=True)),
+                ('education', models.JSONField(default=list, verbose_name='教育经历')),
+                ('experience', models.JSONField(default=list, verbose_name='工作经历')),
+                ('attachment', models.FileField(blank=True, null=True, upload_to='resumes/')),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('user', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, related_name='resume', to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'verbose_name': '简历',
+            },
+        ),
+    ]

offer_backend/apps/resumes/models.py

@@ -0,0 +1,32 @@
+from django.db import models
+from django.conf import settings
+
+
+class Resume(models.Model):
+    GENDER_CHOICES = [('male', '男'), ('female', '女'), ('other', '其他')]
+    user = models.OneToOneField(
+        settings.AUTH_USER_MODEL,
+        on_delete=models.CASCADE,
+        related_name='resume'
+    )
+    name = models.CharField(max_length=50, verbose_name='姓名')
+    gender = models.CharField(max_length=10, choices=GENDER_CHOICES, blank=True)
+    birthday = models.DateField(null=True, blank=True)
+    education = models.JSONField(default=list, verbose_name='教育经历')
+    experience = models.JSONField(default=list, verbose_name='工作经历')
+    attachment = models.FileField(upload_to='resumes/', null=True, blank=True)
+    updated_at = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        verbose_name = '简历'
+
+    def to_snapshot(self):
+        """序列化为投递快照，与主表解耦"""
+        return {
+            'name': self.name,
+            'gender': self.gender,
+            'birthday': str(self.birthday) if self.birthday else None,
+            'education': self.education,
+            'experience': self.experience,
+            'attachment_url': self.attachment.url if self.attachment else None,
+        }

offer_backend/apps/resumes/serializers.py

@@ -0,0 +1,10 @@
+from rest_framework import serializers
+from .models import Resume
+
+
+class ResumeSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Resume
+        fields = ['id', 'name', 'gender', 'birthday', 'education',
+                  'experience', 'attachment', 'updated_at']
+        read_only_fields = ['updated_at']

offer_backend/apps/resumes/tests/test_resumes.py

@@ -0,0 +1,29 @@
+import pytest
+from django.contrib.auth import get_user_model
+from apps.resumes.models import Resume
+
+User = get_user_model()
+
+
+@pytest.fixture
+def seeker():
+    return User.objects.create_user(username='seeker1', password='pass', role='seeker')
+
+
+@pytest.mark.django_db
+class TestResumeModel:
+    def test_create_resume(self, seeker):
+        resume = Resume.objects.create(
+            user=seeker,
+            name='张三',
+            gender='male',
+            education=[{'school': '北京大学', 'degree': '本科', 'major': '计算机'}],
+            experience=[{'company': 'ABC公司', 'position': '工程师', 'duration': '2年'}],
+        )
+        assert resume.name == '张三'
+        assert len(resume.education) == 1
+        assert len(resume.experience) == 1
+
+    def test_seeker_has_one_resume(self, seeker):
+        Resume.objects.create(user=seeker, name='张三')
+        assert Resume.objects.filter(user=seeker).count() == 1

offer_backend/apps/resumes/urls.py

@@ -1,3 +1,6 @@
 from django.urls import path
+from .views import MyResumeView
 
-urlpatterns = []
+urlpatterns = [
+    path('me/', MyResumeView.as_view()),
+]

offer_backend/apps/resumes/views.py

@@ -0,0 +1,17 @@
+from rest_framework import generics
+from .models import Resume
+from .serializers import ResumeSerializer
+from apps.accounts.permissions import IsSeeker
+
+
+class MyResumeView(generics.RetrieveUpdateAPIView):
+    """求职者获取/更新自己的简历（不存在则自动创建）"""
+    serializer_class = ResumeSerializer
+    permission_classes = [IsSeeker]
+
+    def get_object(self):
+        resume, _ = Resume.objects.get_or_create(
+            user=self.request.user,
+            defaults={'name': self.request.user.username}
+        )
+        return resume