hz4th_coder
e689fed71e
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)
128 lines
4.1 KiB
Python
128 lines
4.1 KiB
Python
"""文章服务"""
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from datetime import datetime
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from slugify import slugify
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from app import db
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from app.models import Article, Category, Tag
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class ArticleService:
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"""文章业务逻辑"""
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@staticmethod
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def get_published_list(page=1, per_page=10, category_id=None, tag_id=None):
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"""获取已发布文章列表"""
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query = Article.query.filter_by(is_published=True)
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if category_id:
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query = query.filter_by(category_id=category_id)
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if tag_id:
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query = query.join(Article.tags).filter(Tag.id == tag_id)
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return query.order_by(Article.published_at.desc()).paginate(
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page=page, per_page=per_page, error_out=False
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)
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@staticmethod
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def get_by_slug(slug):
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"""通过slug获取文章"""
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article = Article.query.filter_by(slug=slug, is_published=True).first()
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if article:
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# 增加浏览次数
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article.view_count += 1
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db.session.commit()
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return article
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@staticmethod
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def get_by_id(article_id):
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"""通过ID获取文章"""
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return Article.query.get(article_id)
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@staticmethod
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def get_all_list(page=1, per_page=20, is_published=None):
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"""获取所有文章列表（后台用）"""
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query = Article.query
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if is_published is not None:
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query = query.filter_by(is_published=is_published)
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return query.order_by(Article.updated_at.desc()).paginate(
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page=page, per_page=per_page, error_out=False
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)
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@staticmethod
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def create(title, content, summary=None, author_id=None, category_id=None, tag_ids=None,
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cover_image=None, is_published=False):
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"""创建文章"""
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# 生成唯一slug
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slug = slugify(title)
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count = Article.query.filter(Article.slug.like(f'{slug}%')).count()
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if count > 0:
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slug = f'{slug}-{count + 1}'
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article = Article(
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title=title,
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slug=slug,
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content=content,
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summary=summary or content[:200] + '...' if len(content) > 200 else content,
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author_id=author_id,
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category_id=category_id,
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cover_image=cover_image,
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is_published=is_published,
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published_at=datetime.utcnow() if is_published else None
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)
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# 添加标签
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if tag_ids:
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tags = Tag.query.filter(Tag.id.in_(tag_ids)).all()
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article.tags = tags
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db.session.add(article)
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db.session.commit()
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return article
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@staticmethod
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def update(article_id, **kwargs):
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"""更新文章"""
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article = Article.query.get(article_id)
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if not article:
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return None
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# 处理发布状态变化
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if 'is_published' in kwargs and kwargs['is_published'] and not article.is_published:
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kwargs['published_at'] = datetime.utcnow()
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# 处理标签
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tag_ids = kwargs.pop('tag_ids', None)
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if tag_ids is not None:
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tags = Tag.query.filter(Tag.id.in_(tag_ids)).all()
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article.tags = tags
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# 更新其他字段
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for key, value in kwargs.items():
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if hasattr(article, key):
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setattr(article, key, value)
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db.session.commit()
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return article
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@staticmethod
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def delete(article_id):
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"""删除文章"""
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article = Article.query.get(article_id)
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if article:
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db.session.delete(article)
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db.session.commit()
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return True
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return False
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@staticmethod
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def get_hot_articles(limit=5):
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"""获取热门文章"""
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return Article.query.filter_by(is_published=True)\
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.order_by(Article.view_count.desc())\
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.limit(limit).all()
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@staticmethod
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def get_recent_articles(limit=5):
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"""获取最新文章"""
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return Article.query.filter_by(is_published=True)\
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.order_by(Article.published_at.desc())\
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.limit(limit).all() |