合并JWL，WZY，TRM代码
Change-Id: Ifb4fcad3c06733e1e005e7d8d9403e3561010fb4
diff --git a/Merge/back_wzy/routes/comments.py b/Merge/back_wzy/routes/comments.py
new file mode 100644
index 0000000..2d5b654
--- /dev/null
+++ b/Merge/back_wzy/routes/comments.py
@@ -0,0 +1,46 @@
+# routes/comments.py
+from flask import Blueprint, request, jsonify, abort
+from extensions import db
+from models.comment import Comment
+from models.behavior import Behavior
+
+comments_bp = Blueprint('comments', __name__)
+
+@comments_bp.route('', methods=['POST'])
+def add_comment(post_id):
+ data = request.get_json() or {}
+ user_id = data.get('user_id')
+ content = data.get('content')
+ if not user_id or not content:
+ return jsonify({'error': 'user_id and content required'}), 400
+
+ comment = Comment(
+ post_id=post_id,
+ user_id=user_id,
+ content=content,
+ parent_id=data.get('parent_id')
+ )
+ db.session.add(comment)
+ # 记录行为
+ beh = Behavior(user_id=user_id, post_id=post_id, type='comment')
+ db.session.add(beh)
+ db.session.commit()
+ return jsonify({'id': comment.id}), 201
+
+@comments_bp.route('', methods=['GET'])
+def list_comments(post_id):
+ def serialize(c):
+ return {
+ 'id': c.id,
+ 'user_id': c.user_id,
+ 'content': c.content,
+ 'created_at': c.created_at.isoformat(),
+ 'replies': [serialize(r) for r in c.replies]
+ }
+
+ comments = Comment.query.filter_by(
+ post_id=post_id,
+ status='active',
+ parent_id=None
+ ).order_by(Comment.created_at.asc()).all()
+ return jsonify([serialize(c) for c in comments])