Adjust hot topics limit and index hashtag name

back/main.py

@@ -82,7 +82,7 @@ class Hashtag(db.Model):
     id = db.Column(db.Integer, primary_key=True, autoincrement=True)
     type = db.Column(db.Integer, nullable=False) # 0: Submission, 1: Comment
     target_id = db.Column(db.Integer, nullable=False)
-    name = db.Column(db.String(255), nullable=False)
+    name = db.Column(db.String(255), nullable=False, index=True)
 
 class DenyWord(db.Model):
     __tablename__ = 'deny_words'
@@ -524,6 +524,8 @@ def get_statics():
     except Exception as e:
         return jsonify({"code": 2003, "data": str(e)})
 
+# 注意区分哦，这两个路由一个是通过页码获取10个投稿的列表，一个是通过id获取单个投稿详情
+
 @app.route('/api/posts_info', methods=['GET'])
 def get_posts_info():
     try:
@@ -588,7 +590,7 @@ def get_hot_topics():
         rows = db.session.query(
             Hashtag.name,
             db.func.count(Hashtag.name).label('count')
-        ).group_by(Hashtag.name).order_by(db.func.count(Hashtag.name).desc()).limit(5).all()
+        ).group_by(Hashtag.name).order_by(db.func.count(Hashtag.name).desc()).limit(3).all()
 
         data = [{"name": name, "count": int(count)} for name, count in rows]
         return jsonify({"code": 1000, "data": {"list": data}})