refactor(email): 重构邮件配置从settings.py迁移到数据库

将邮件配置从Django的settings.py迁移到数据库的SystemConfig模型
更新测试文件以使用新的配置方式
添加邮件后端连接配置以提高灵活性

test_email.py

@@ -21,19 +21,19 @@ def test_email_config():
         django.setup()
 
         from django.conf import settings
-        from django.core.mail import get_connection
-        from email.mime.text import MIMEText
-        from email.mime.multipart import MIMEMultipart
+        from core.models import SystemConfig
+
+        # 从数据库获取系统配置
+        config = SystemConfig.get_config()
 
         # 检查邮件配置
         email_config = {
-            'EMAIL_BACKEND': getattr(settings, 'EMAIL_BACKEND', None),
-            'EMAIL_HOST': getattr(settings, 'EMAIL_HOST', None),
-            'EMAIL_PORT': getattr(settings, 'EMAIL_PORT', None),
-            'EMAIL_USE_TLS': getattr(settings, 'EMAIL_USE_TLS', None),
-            'EMAIL_USE_SSL': getattr(settings, 'EMAIL_USE_SSL', None),
-            'EMAIL_HOST_USER': getattr(settings, 'EMAIL_HOST_USER', None),
-            'EMAIL_HOST_PASSWORD': '***' if getattr(settings, 'EMAIL_HOST_PASSWORD', None) else None,
+            'smtp_server': config.smtp_server,
+            'smtp_port': config.smtp_port,
+            'smtp_username': config.smtp_username,
+            'smtp_password': '***' if config.smtp_password else None,
+            'recipient_email': config.recipient_email,
+            'send_time': config.send_time,
         }
 
         logger.info("邮件配置信息:")
@@ -44,16 +44,19 @@ def test_email_config():
                 logger.info(f"  {key}: {value}")
 
         # 验证必要配置
-        required_configs = ['EMAIL_HOST', 'EMAIL_PORT', 'EMAIL_HOST_USER']
-        missing_configs = [cfg for cfg in required_configs if not getattr(settings, cfg, None)]
+        required_configs = ['smtp_server', 'smtp_port', 'smtp_username', 'smtp_password']
+        missing_configs = []
+        for cfg in required_configs:
+            if not getattr(config, cfg, None):
+                missing_configs.append(cfg)
 
         if missing_configs:
             logger.error(f"缺少必要的邮件配置: {', '.join(missing_configs)}")
-            logger.info("请在系统配置页面或settings.py中配置以下参数:")
-            logger.info("  - EMAIL_HOST: SMTP服务器地址")
-            logger.info("  - EMAIL_PORT: SMTP端口（通常是587或465）")
-            logger.info("  - EMAIL_HOST_USER: 发件邮箱")
-            logger.info("  - EMAIL_HOST_PASSWORD: 发件邮箱密码")
+            logger.info("请在系统配置页面配置以下参数:")
+            logger.info("  - SMTP服务器: SMTP服务器地址")
+            logger.info("  - SMTP端口: SMTP端口（通常是587或465）")
+            logger.info("  - SMTP用户名: 发件邮箱")
+            logger.info("  - SMTP密码: 发件邮箱密码")
             return False
 
         logger.success("邮件配置测试通过！")
@@ -73,17 +76,17 @@ def test_smtp_connection():
         import django
         django.setup()
 
-        from django.conf import settings
-        from django.core.mail import get_connection
         from django.core.mail.backends.smtp import EmailBackend
+        from core.models import SystemConfig
 
-        # 获取SMTP配置
-        host = getattr(settings, 'EMAIL_HOST', 'localhost')
-        port = getattr(settings, 'EMAIL_PORT', 587)
-        username = getattr(settings, 'EMAIL_HOST_USER', '')
-        password = getattr(settings, 'EMAIL_HOST_PASSWORD', '')
-        use_tls = getattr(settings, 'EMAIL_USE_TLS', True)
-        use_ssl = getattr(settings, 'EMAIL_USE_SSL', False)
+        # 从数据库获取SMTP配置
+        config = SystemConfig.get_config()
+        host = config.smtp_server or 'localhost'
+        port = config.smtp_port or 587
+        username = config.smtp_username or ''
+        password = config.smtp_password or ''
+        use_tls = True  # 默认使用TLS
+        use_ssl = False  # 默认不使用SSL
         timeout = 10  # 连接超时时间
 
         logger.info(f"连接SMTP服务器: {host}:{port}")
@@ -183,29 +186,28 @@ def test_send_simple_email():
         import django
         django.setup()
 
-        from django.conf import settings
         from django.core.mail import EmailMessage
         from django.utils import timezone
+        from core.models import SystemConfig
+        from django.core.mail.backends.smtp import EmailBackend
 
-        # 获取配置
-        from_email = getattr(settings, 'EMAIL_HOST_USER', None)
+        # 从数据库获取配置
+        config = SystemConfig.get_config()
+        from_email = config.smtp_username or None
         if not from_email:
-            logger.error("未配置发件邮箱 (EMAIL_HOST_USER)")
+            logger.error("未配置发件邮箱 (smtp_username)")
             return False
 
         # 获取收件人（如果没有配置，使用发件人自己）
-        to_email = getattr(settings, 'EMAIL_HOST_USER', from_email)
-        if isinstance(to_email, list):
-            recipient_list = to_email
-        else:
-            recipient_list = [to_email]
+        to_email = config.recipient_email or from_email
+        recipient_list = [to_email]
 
         # 获取SMTP配置
-        host = getattr(settings, 'EMAIL_HOST', 'localhost')
-        port = getattr(settings, 'EMAIL_PORT', 587)
-        username = getattr(settings, 'EMAIL_HOST_USER', '')
-        password = getattr(settings, 'EMAIL_HOST_PASSWORD', '')
-        use_tls = getattr(settings, 'EMAIL_USE_TLS', True)
+        host = config.smtp_server or 'localhost'
+        port = config.smtp_port or 587
+        username = config.smtp_username or ''
+        password = config.smtp_password or ''
+        use_tls = True  # 默认使用TLS
 
         # 创建测试邮件
         subject = f"家庭日报系统测试邮件 - {timezone.now().strftime('%Y-%m-%d %H:%M:%S')}"
@@ -228,12 +230,23 @@ def test_send_simple_email():
         logger.info(f"  收件人: {recipient_list}")
         logger.info(f"  主题: {subject}")
 
+        # 创建邮件后端
+        backend = EmailBackend(
+            host=host,
+            port=port,
+            username=username,
+            password=password,
+            use_tls=use_tls,
+            fail_silently=False
+        )
+
         # 创建邮件
         email = EmailMessage(
             subject=subject,
             body=body,
             from_email=from_email,
             to=recipient_list,
+            connection=backend
         )
         email.content_subtype = 'plain'
         email.encoding = 'utf-8'
@@ -279,18 +292,27 @@ def test_send_html_email_with_attachment():
         import django
         django.setup()
 
-        from django.conf import settings
         from django.core.mail import EmailMessage
-        from django.template.loader import render_to_string
         from django.utils import timezone
+        from core.models import SystemConfig
+        from django.core.mail.backends.smtp import EmailBackend
 
-        # 获取配置
-        from_email = getattr(settings, 'EMAIL_HOST_USER', None)
-        to_email = getattr(settings, 'EMAIL_HOST_USER', from_email)
-        if isinstance(to_email, list):
-            recipient_list = to_email
-        else:
-            recipient_list = [to_email]
+        # 从数据库获取配置
+        config = SystemConfig.get_config()
+        from_email = config.smtp_username or None
+        if not from_email:
+            logger.error("未配置发件邮箱")
+            return False
+
+        to_email = config.recipient_email or from_email
+        recipient_list = [to_email]
+
+        # 获取SMTP配置
+        host = config.smtp_server or 'localhost'
+        port = config.smtp_port or 587
+        username = config.smtp_username or ''
+        password = config.smtp_password or ''
+        use_tls = True  # 默认使用TLS
 
         # 创建HTML内容
         html_content = f"""
@@ -328,12 +350,23 @@ def test_send_html_email_with_attachment():
 
         subject = f"家庭日报系统 HTML测试邮件 - {timezone.now().strftime('%Y-%m-%d')}"
 
+        # 创建邮件后端
+        backend = EmailBackend(
+            host=host,
+            port=port,
+            username=username,
+            password=password,
+            use_tls=use_tls,
+            fail_silently=False
+        )
+
         # 创建邮件
         email = EmailMessage(
             subject=subject,
             body=html_content,
             from_email=from_email,
             to=recipient_list,
+            connection=backend
         )
         email.content_subtype = 'html'
         email.encoding = 'utf-8'
@@ -369,18 +402,38 @@ def test_email_performance():
         import django
         django.setup()
 
-        from django.conf import settings
         from django.core.mail import EmailMessage
         from django.utils import timezone
+        from core.models import SystemConfig
+        from django.core.mail.backends.smtp import EmailBackend
         import time
 
-        # 获取配置
-        from_email = getattr(settings, 'EMAIL_HOST_USER', None)
-        to_email = getattr(settings, 'EMAIL_HOST_USER', from_email)
-        if isinstance(to_email, list):
-            recipient_list = to_email
-        else:
-            recipient_list = [to_email]
+        # 从数据库获取配置
+        config = SystemConfig.get_config()
+        from_email = config.smtp_username or None
+        if not from_email:
+            logger.error("未配置发件邮箱")
+            return False
+
+        to_email = config.recipient_email or from_email
+        recipient_list = [to_email]
+
+        # 获取SMTP配置
+        host = config.smtp_server or 'localhost'
+        port = config.smtp_port or 587
+        username = config.smtp_username or ''
+        password = config.smtp_password or ''
+        use_tls = True  # 默认使用TLS
+
+        # 创建邮件后端
+        backend = EmailBackend(
+            host=host,
+            port=port,
+            username=username,
+            password=password,
+            use_tls=use_tls,
+            fail_silently=False
+        )
 
         # 性能测试
         test_count = 3
@@ -395,6 +448,7 @@ def test_email_performance():
                 body=body,
                 from_email=from_email,
                 to=recipient_list,
+                connection=backend
             )
 
             start_time = time.time()