初始化技术博客项目

功能特性:
- 前端文章展示 (Markdown渲染、代码高亮)
- 后台管理系统 (文章、分类、标签、作者管理)
- 图片上传 (点击、拖拽、粘贴)
- 网站设置 (Logo、底部宣传图片上传)
- 访问统计 (IP记录、趋势图表)
- 参考来源、附件支持
- 单端口部署 (16012)

技术栈:
- Flask 3.0 + SQLAlchemy
- SQLite数据库
- marked.js + highlight.js (Markdown渲染)
- Chart.js (统计图表)

app/models/article.py

@@ -0,0 +1,66 @@
+"""文章模型"""
+from datetime import datetime
+from app import db
+
+
+class Article(db.Model):
+    """文章表"""
+    __tablename__ = 'articles'
+    
+    id = db.Column(db.Integer, primary_key=True)
+    title = db.Column(db.String(200), nullable=False)
+    slug = db.Column(db.String(200), unique=True, nullable=False)
+    summary = db.Column(db.Text)
+    content = db.Column(db.Text, nullable=False)
+    cover_image = db.Column(db.String(500))
+    is_published = db.Column(db.Boolean, default=False)
+    view_count = db.Column(db.Integer, default=0)
+    
+    # 作者关联
+    author_id = db.Column(db.Integer, db.ForeignKey('article_authors.id'))
+    author = db.relationship('ArticleAuthor', backref='articles')
+    
+    # 分类关联
+    category_id = db.Column(db.Integer, db.ForeignKey('categories.id'))
+    category = db.relationship('Category', back_populates='articles')
+    
+    # 标签关联（多对多）
+    tags = db.relationship('Tag', secondary='article_tags', back_populates='articles')
+    
+    # 参考来源和附件（在article_ext.py中定义）
+    # references = db.relationship('Reference', backref='article')
+    # attachments = db.relationship('Attachment', backref='article')
+    
+    # 时间戳
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    published_at = db.Column(db.DateTime)
+    
+    def __repr__(self):
+        return f'<Article {self.title}>'
+    
+    def to_dict(self):
+        """转换为字典"""
+        return {
+            'id': self.id,
+            'title': self.title,
+            'slug': self.slug,
+            'summary': self.summary,
+            'content': self.content,
+            'cover_image': self.cover_image,
+            'is_published': self.is_published,
+            'view_count': self.view_count,
+            'author': self.author.name if self.author else None,
+            'category': self.category.name if self.category else None,
+            'tags': [tag.name for tag in self.tags],
+            'created_at': self.created_at.isoformat() if self.created_at else None,
+            'updated_at': self.updated_at.isoformat() if self.updated_at else None,
+            'published_at': self.published_at.isoformat() if self.published_at else None
+        }
+
+
+# 文章-标签关联表
+article_tags = db.Table('article_tags',
+    db.Column('article_id', db.Integer, db.ForeignKey('articles.id'), primary_key=True),
+    db.Column('tag_id', db.Integer, db.ForeignKey('tags.id'), primary_key=True)
+)