Files
DinQuant/backend_api_python/app/services/community_service.py
T
TIANHE 0b37aa4a67 V2.1.1
Signed-off-by: TIANHE <TIANHE@GMAIL.COM>
2026-01-31 02:59:49 +08:00

942 lines
40 KiB
Python

"""
Community Service - 指标社区服务
处理指标市场、购买、评论等功能。
"""
import time
from decimal import Decimal
from typing import Dict, Any, List, Optional, Tuple
from app.utils.db import get_db_connection
from app.utils.logger import get_logger
from app.services.billing_service import get_billing_service
logger = get_logger(__name__)
class CommunityService:
"""指标社区服务类"""
def __init__(self):
self.billing = get_billing_service()
# ==========================================
# 指标市场
# ==========================================
def get_market_indicators(
self,
page: int = 1,
page_size: int = 12,
keyword: str = None,
pricing_type: str = None, # 'free' / 'paid' / None(all)
sort_by: str = 'newest', # 'newest' / 'hot' / 'price_asc' / 'price_desc' / 'rating'
user_id: int = None # 当前用户ID,用于判断是否已购买
) -> Dict[str, Any]:
"""获取市场上已发布的指标列表"""
offset = (page - 1) * page_size
try:
with get_db_connection() as db:
cur = db.cursor()
# 构建查询条件 - 只显示已发布且审核通过的指标
where_clauses = ["i.publish_to_community = 1", "(i.review_status = 'approved' OR i.review_status IS NULL)"]
params = []
if keyword and keyword.strip():
where_clauses.append("(i.name ILIKE ? OR i.description ILIKE ?)")
search_term = f"%{keyword.strip()}%"
params.extend([search_term, search_term])
if pricing_type == 'free':
where_clauses.append("(i.pricing_type = 'free' OR i.price <= 0)")
elif pricing_type == 'paid':
where_clauses.append("(i.pricing_type != 'free' AND i.price > 0)")
where_sql = " AND ".join(where_clauses)
# 排序
order_map = {
'newest': 'i.created_at DESC',
'hot': 'i.purchase_count DESC, i.view_count DESC',
'price_asc': 'i.price ASC, i.created_at DESC',
'price_desc': 'i.price DESC, i.created_at DESC',
'rating': 'i.avg_rating DESC, i.rating_count DESC'
}
order_sql = order_map.get(sort_by, 'i.created_at DESC')
# 获取总数
count_sql = f"""
SELECT COUNT(*) as count
FROM qd_indicator_codes i
WHERE {where_sql}
"""
cur.execute(count_sql, tuple(params))
total = cur.fetchone()['count']
# 获取列表(联表查询作者信息)
query_sql = f"""
SELECT
i.id, i.name, i.description, i.pricing_type, i.price,
i.preview_image, i.purchase_count, i.avg_rating, i.rating_count,
i.view_count, i.created_at, i.updated_at,
u.id as author_id, u.username as author_username,
u.nickname as author_nickname, u.avatar as author_avatar
FROM qd_indicator_codes i
LEFT JOIN qd_users u ON i.user_id = u.id
WHERE {where_sql}
ORDER BY {order_sql}
LIMIT ? OFFSET ?
"""
cur.execute(query_sql, tuple(params + [page_size, offset]))
rows = cur.fetchall() or []
# 如果有当前用户,查询已购买的指标
purchased_ids = set()
if user_id:
indicator_ids = [r['id'] for r in rows]
if indicator_ids:
placeholders = ','.join(['?'] * len(indicator_ids))
cur.execute(
f"SELECT indicator_id FROM qd_indicator_purchases WHERE buyer_id = ? AND indicator_id IN ({placeholders})",
tuple([user_id] + indicator_ids)
)
purchased_ids = {r['indicator_id'] for r in (cur.fetchall() or [])}
cur.close()
# 格式化返回数据
items = []
for row in rows:
items.append({
'id': row['id'],
'name': row['name'],
'description': row['description'][:200] if row['description'] else '',
'pricing_type': row['pricing_type'] or 'free',
'price': float(row['price'] or 0),
'preview_image': row['preview_image'] or '',
'purchase_count': row['purchase_count'] or 0,
'avg_rating': float(row['avg_rating'] or 0),
'rating_count': row['rating_count'] or 0,
'view_count': row['view_count'] or 0,
'created_at': row['created_at'].isoformat() if row['created_at'] else None,
'author': {
'id': row['author_id'],
'username': row['author_username'],
'nickname': row['author_nickname'] or row['author_username'],
'avatar': row['author_avatar'] or '/avatar2.jpg'
},
'is_purchased': row['id'] in purchased_ids,
'is_own': row['author_id'] == user_id
})
return {
'items': items,
'total': total,
'page': page,
'page_size': page_size,
'total_pages': (total + page_size - 1) // page_size if total > 0 else 0
}
except Exception as e:
logger.error(f"get_market_indicators failed: {e}")
return {'items': [], 'total': 0, 'page': 1, 'page_size': page_size, 'total_pages': 0}
def get_indicator_detail(self, indicator_id: int, user_id: int = None) -> Optional[Dict[str, Any]]:
"""获取指标详情"""
try:
with get_db_connection() as db:
cur = db.cursor()
# 获取指标信息
cur.execute("""
SELECT
i.id, i.name, i.description, i.pricing_type, i.price,
i.preview_image, i.purchase_count, i.avg_rating, i.rating_count,
i.view_count, i.publish_to_community, i.created_at, i.updated_at,
i.user_id,
u.id as author_id, u.username as author_username,
u.nickname as author_nickname, u.avatar as author_avatar
FROM qd_indicator_codes i
LEFT JOIN qd_users u ON i.user_id = u.id
WHERE i.id = ?
""", (indicator_id,))
row = cur.fetchone()
if not row:
cur.close()
return None
# 检查是否已发布到社区(或者是自己的指标)
if not row['publish_to_community'] and row['user_id'] != user_id:
cur.close()
return None
# 检查是否已购买
is_purchased = False
if user_id:
cur.execute(
"SELECT id FROM qd_indicator_purchases WHERE indicator_id = ? AND buyer_id = ?",
(indicator_id, user_id)
)
is_purchased = cur.fetchone() is not None
# 增加浏览次数
cur.execute(
"UPDATE qd_indicator_codes SET view_count = COALESCE(view_count, 0) + 1 WHERE id = ?",
(indicator_id,)
)
db.commit()
cur.close()
return {
'id': row['id'],
'name': row['name'],
'description': row['description'] or '',
'pricing_type': row['pricing_type'] or 'free',
'price': float(row['price'] or 0),
'preview_image': row['preview_image'] or '',
'purchase_count': row['purchase_count'] or 0,
'avg_rating': float(row['avg_rating'] or 0),
'rating_count': row['rating_count'] or 0,
'view_count': (row['view_count'] or 0) + 1,
'created_at': row['created_at'].isoformat() if row['created_at'] else None,
'updated_at': row['updated_at'].isoformat() if row['updated_at'] else None,
'author': {
'id': row['author_id'],
'username': row['author_username'],
'nickname': row['author_nickname'] or row['author_username'],
'avatar': row['author_avatar'] or '/avatar2.jpg'
},
'is_purchased': is_purchased,
'is_own': row['user_id'] == user_id
}
except Exception as e:
logger.error(f"get_indicator_detail failed: {e}")
return None
# ==========================================
# 购买功能
# ==========================================
def purchase_indicator(self, buyer_id: int, indicator_id: int) -> Tuple[bool, str, Dict[str, Any]]:
"""
购买指标
Returns:
(success, message, data)
"""
try:
with get_db_connection() as db:
cur = db.cursor()
# 1. 获取指标信息
cur.execute("""
SELECT id, user_id, name, code, description, pricing_type, price,
preview_image, is_encrypted
FROM qd_indicator_codes
WHERE id = ? AND publish_to_community = 1
""", (indicator_id,))
indicator = cur.fetchone()
if not indicator:
cur.close()
return False, 'indicator_not_found', {}
seller_id = indicator['user_id']
price = float(indicator['price'] or 0)
pricing_type = indicator['pricing_type'] or 'free'
# 2. 检查是否购买自己的指标
if seller_id == buyer_id:
cur.close()
return False, 'cannot_buy_own', {}
# 3. 检查是否已购买
cur.execute(
"SELECT id FROM qd_indicator_purchases WHERE indicator_id = ? AND buyer_id = ?",
(indicator_id, buyer_id)
)
if cur.fetchone():
cur.close()
return False, 'already_purchased', {}
# 4. 如果是付费指标,检查并扣除积分
if pricing_type != 'free' and price > 0:
buyer_credits = self.billing.get_user_credits(buyer_id)
if buyer_credits < price:
cur.close()
return False, 'insufficient_credits', {
'required': price,
'current': float(buyer_credits)
}
# 扣除买家积分
new_buyer_balance = buyer_credits - Decimal(str(price))
cur.execute(
"UPDATE qd_users SET credits = ?, updated_at = NOW() WHERE id = ?",
(float(new_buyer_balance), buyer_id)
)
# 记录买家积分日志
cur.execute("""
INSERT INTO qd_credits_log
(user_id, action, amount, balance_after, feature, reference_id, remark, created_at)
VALUES (?, 'indicator_purchase', ?, ?, 'indicator_purchase', ?, ?, NOW())
""", (buyer_id, -price, float(new_buyer_balance), str(indicator_id),
f"购买指标: {indicator['name']}"))
# 给卖家增加积分(可配置抽成比例,这里先100%给卖家)
seller_credits = self.billing.get_user_credits(seller_id)
new_seller_balance = seller_credits + Decimal(str(price))
cur.execute(
"UPDATE qd_users SET credits = ?, updated_at = NOW() WHERE id = ?",
(float(new_seller_balance), seller_id)
)
# 记录卖家积分日志
cur.execute("""
INSERT INTO qd_credits_log
(user_id, action, amount, balance_after, feature, reference_id, remark, created_at)
VALUES (?, 'indicator_sale', ?, ?, 'indicator_sale', ?, ?, NOW())
""", (seller_id, price, float(new_seller_balance), str(indicator_id),
f"出售指标: {indicator['name']}"))
# 5. 创建购买记录
cur.execute("""
INSERT INTO qd_indicator_purchases
(indicator_id, buyer_id, seller_id, price, created_at)
VALUES (?, ?, ?, ?, NOW())
""", (indicator_id, buyer_id, seller_id, price))
# 6. 复制指标到买家账户
now_ts = int(time.time())
cur.execute("""
INSERT INTO qd_indicator_codes
(user_id, is_buy, end_time, name, code, description,
publish_to_community, pricing_type, price, is_encrypted, preview_image,
createtime, updatetime, created_at, updated_at)
VALUES (?, 1, 0, ?, ?, ?, 0, 'free', 0, ?, ?, ?, ?, NOW(), NOW())
""", (
buyer_id,
indicator['name'],
indicator['code'],
indicator['description'],
indicator['is_encrypted'] or 0,
indicator['preview_image'],
now_ts, now_ts
))
# 7. 更新指标购买次数
cur.execute("""
UPDATE qd_indicator_codes
SET purchase_count = COALESCE(purchase_count, 0) + 1
WHERE id = ?
""", (indicator_id,))
db.commit()
cur.close()
logger.info(f"User {buyer_id} purchased indicator {indicator_id} for {price} credits")
return True, 'success', {'indicator_name': indicator['name'], 'price': price}
except Exception as e:
logger.error(f"purchase_indicator failed: {e}")
return False, f'error: {str(e)}', {}
def get_my_purchases(self, user_id: int, page: int = 1, page_size: int = 20) -> Dict[str, Any]:
"""获取用户购买的指标列表"""
offset = (page - 1) * page_size
try:
with get_db_connection() as db:
cur = db.cursor()
# 获取总数
cur.execute(
"SELECT COUNT(*) as count FROM qd_indicator_purchases WHERE buyer_id = ?",
(user_id,)
)
total = cur.fetchone()['count']
# 获取列表
cur.execute("""
SELECT
p.id as purchase_id, p.price as purchase_price, p.created_at as purchase_time,
i.id, i.name, i.description, i.preview_image, i.avg_rating,
u.nickname as seller_nickname, u.avatar as seller_avatar
FROM qd_indicator_purchases p
LEFT JOIN qd_indicator_codes i ON p.indicator_id = i.id
LEFT JOIN qd_users u ON p.seller_id = u.id
WHERE p.buyer_id = ?
ORDER BY p.created_at DESC
LIMIT ? OFFSET ?
""", (user_id, page_size, offset))
rows = cur.fetchall() or []
cur.close()
items = []
for row in rows:
items.append({
'purchase_id': row['purchase_id'],
'purchase_price': float(row['purchase_price'] or 0),
'purchase_time': row['purchase_time'].isoformat() if row['purchase_time'] else None,
'indicator': {
'id': row['id'],
'name': row['name'],
'description': row['description'][:100] if row['description'] else '',
'preview_image': row['preview_image'] or '',
'avg_rating': float(row['avg_rating'] or 0)
},
'seller': {
'nickname': row['seller_nickname'],
'avatar': row['seller_avatar'] or '/avatar2.jpg'
}
})
return {
'items': items,
'total': total,
'page': page,
'page_size': page_size,
'total_pages': (total + page_size - 1) // page_size if total > 0 else 0
}
except Exception as e:
logger.error(f"get_my_purchases failed: {e}")
return {'items': [], 'total': 0, 'page': 1, 'page_size': page_size, 'total_pages': 0}
# ==========================================
# 评论功能
# ==========================================
def get_comments(self, indicator_id: int, page: int = 1, page_size: int = 20) -> Dict[str, Any]:
"""获取指标评论列表"""
offset = (page - 1) * page_size
try:
with get_db_connection() as db:
cur = db.cursor()
# 获取总数(只统计一级评论)
cur.execute("""
SELECT COUNT(*) as count FROM qd_indicator_comments
WHERE indicator_id = ? AND parent_id IS NULL AND is_deleted = 0
""", (indicator_id,))
total = cur.fetchone()['count']
# 获取评论列表
cur.execute("""
SELECT
c.id, c.rating, c.content, c.created_at,
u.id as user_id, u.nickname, u.avatar
FROM qd_indicator_comments c
LEFT JOIN qd_users u ON c.user_id = u.id
WHERE c.indicator_id = ? AND c.parent_id IS NULL AND c.is_deleted = 0
ORDER BY c.created_at DESC
LIMIT ? OFFSET ?
""", (indicator_id, page_size, offset))
rows = cur.fetchall() or []
cur.close()
items = []
for row in rows:
items.append({
'id': row['id'],
'rating': row['rating'],
'content': row['content'],
'created_at': row['created_at'].isoformat() if row['created_at'] else None,
'user': {
'id': row['user_id'],
'nickname': row['nickname'],
'avatar': row['avatar'] or '/avatar2.jpg'
}
})
return {
'items': items,
'total': total,
'page': page,
'page_size': page_size,
'total_pages': (total + page_size - 1) // page_size if total > 0 else 0
}
except Exception as e:
logger.error(f"get_comments failed: {e}")
return {'items': [], 'total': 0, 'page': 1, 'page_size': page_size, 'total_pages': 0}
def add_comment(
self,
user_id: int,
indicator_id: int,
rating: int,
content: str
) -> Tuple[bool, str, Dict[str, Any]]:
"""
添加评论(只有购买过的用户可以评论,且只能评论一次)
"""
try:
# 验证评分范围
rating = max(1, min(5, int(rating)))
content = (content or '').strip()[:500] # 限制500字
with get_db_connection() as db:
cur = db.cursor()
# 检查指标是否存在
cur.execute(
"SELECT id, user_id FROM qd_indicator_codes WHERE id = ? AND publish_to_community = 1",
(indicator_id,)
)
indicator = cur.fetchone()
if not indicator:
cur.close()
return False, 'indicator_not_found', {}
# 不能评论自己的指标
if indicator['user_id'] == user_id:
cur.close()
return False, 'cannot_comment_own', {}
# 检查是否已购买(免费指标也需要"获取"才能评论)
cur.execute(
"SELECT id FROM qd_indicator_purchases WHERE indicator_id = ? AND buyer_id = ?",
(indicator_id, user_id)
)
if not cur.fetchone():
cur.close()
return False, 'not_purchased', {}
# 检查是否已评论
cur.execute(
"SELECT id FROM qd_indicator_comments WHERE indicator_id = ? AND user_id = ? AND parent_id IS NULL",
(indicator_id, user_id)
)
if cur.fetchone():
cur.close()
return False, 'already_commented', {}
# 添加评论
cur.execute("""
INSERT INTO qd_indicator_comments
(indicator_id, user_id, rating, content, created_at, updated_at)
VALUES (?, ?, ?, ?, NOW(), NOW())
""", (indicator_id, user_id, rating, content))
comment_id = cur.lastrowid
# 更新指标的评分统计
cur.execute("""
UPDATE qd_indicator_codes
SET
rating_count = COALESCE(rating_count, 0) + 1,
avg_rating = (
SELECT AVG(rating) FROM qd_indicator_comments
WHERE indicator_id = ? AND parent_id IS NULL AND is_deleted = 0
)
WHERE id = ?
""", (indicator_id, indicator_id))
db.commit()
cur.close()
logger.info(f"User {user_id} commented on indicator {indicator_id} with rating {rating}")
return True, 'success', {'comment_id': comment_id}
except Exception as e:
logger.error(f"add_comment failed: {e}")
return False, f'error: {str(e)}', {}
def update_comment(
self,
user_id: int,
comment_id: int,
indicator_id: int,
rating: int,
content: str
) -> Tuple[bool, str, Dict[str, Any]]:
"""
更新评论(只能修改自己的评论)
"""
try:
rating = max(1, min(5, int(rating)))
content = (content or '').strip()[:500]
with get_db_connection() as db:
cur = db.cursor()
# 检查评论是否存在且属于当前用户
cur.execute("""
SELECT id, rating as old_rating FROM qd_indicator_comments
WHERE id = ? AND user_id = ? AND indicator_id = ? AND is_deleted = 0
""", (comment_id, user_id, indicator_id))
comment = cur.fetchone()
if not comment:
cur.close()
return False, 'comment_not_found', {}
old_rating = comment['old_rating']
# 更新评论
cur.execute("""
UPDATE qd_indicator_comments
SET rating = ?, content = ?, updated_at = NOW()
WHERE id = ?
""", (rating, content, comment_id))
# 如果评分变了,更新指标的平均评分
if old_rating != rating:
cur.execute("""
UPDATE qd_indicator_codes
SET avg_rating = (
SELECT AVG(rating) FROM qd_indicator_comments
WHERE indicator_id = ? AND parent_id IS NULL AND is_deleted = 0
)
WHERE id = ?
""", (indicator_id, indicator_id))
db.commit()
cur.close()
logger.info(f"User {user_id} updated comment {comment_id}")
return True, 'success', {'comment_id': comment_id}
except Exception as e:
logger.error(f"update_comment failed: {e}")
return False, f'error: {str(e)}', {}
def get_user_comment(self, user_id: int, indicator_id: int) -> Optional[Dict[str, Any]]:
"""获取用户对某个指标的评论"""
try:
with get_db_connection() as db:
cur = db.cursor()
cur.execute("""
SELECT id, rating, content, created_at, updated_at
FROM qd_indicator_comments
WHERE user_id = ? AND indicator_id = ? AND parent_id IS NULL AND is_deleted = 0
""", (user_id, indicator_id))
row = cur.fetchone()
cur.close()
if not row:
return None
return {
'id': row['id'],
'rating': row['rating'],
'content': row['content'],
'created_at': row['created_at'].isoformat() if row['created_at'] else None,
'updated_at': row['updated_at'].isoformat() if row['updated_at'] else None
}
except Exception as e:
logger.error(f"get_user_comment failed: {e}")
return None
# ==========================================
# 管理员审核功能
# ==========================================
def get_pending_indicators(
self,
page: int = 1,
page_size: int = 20,
review_status: str = 'pending' # 'pending' / 'approved' / 'rejected' / 'all'
) -> Dict[str, Any]:
"""获取待审核的指标列表(管理员用)"""
offset = (page - 1) * page_size
try:
with get_db_connection() as db:
cur = db.cursor()
# 构建查询条件
where_clauses = ["i.publish_to_community = 1"]
params = []
if review_status and review_status != 'all':
where_clauses.append("i.review_status = ?")
params.append(review_status)
where_sql = " AND ".join(where_clauses)
# 获取总数
count_sql = f"""
SELECT COUNT(*) as count
FROM qd_indicator_codes i
WHERE {where_sql}
"""
cur.execute(count_sql, tuple(params))
total = cur.fetchone()['count']
# 获取列表
query_sql = f"""
SELECT
i.id, i.name, i.description, i.pricing_type, i.price,
i.preview_image, i.code, i.review_status, i.review_note,
i.reviewed_at, i.reviewed_by, i.created_at,
u.id as author_id, u.username as author_username,
u.nickname as author_nickname, u.avatar as author_avatar,
r.username as reviewer_username
FROM qd_indicator_codes i
LEFT JOIN qd_users u ON i.user_id = u.id
LEFT JOIN qd_users r ON i.reviewed_by = r.id
WHERE {where_sql}
ORDER BY i.created_at DESC
LIMIT ? OFFSET ?
"""
cur.execute(query_sql, tuple(params + [page_size, offset]))
rows = cur.fetchall() or []
cur.close()
items = []
for row in rows:
items.append({
'id': row['id'],
'name': row['name'],
'description': row['description'][:300] if row['description'] else '',
'pricing_type': row['pricing_type'] or 'free',
'price': float(row['price'] or 0),
'preview_image': row['preview_image'] or '',
'code': row['code'] or '', # 管理员可以看代码
'review_status': row['review_status'] or 'pending',
'review_note': row['review_note'] or '',
'reviewed_at': row['reviewed_at'].isoformat() if row['reviewed_at'] else None,
'reviewer_username': row['reviewer_username'],
'created_at': row['created_at'].isoformat() if row['created_at'] else None,
'author': {
'id': row['author_id'],
'username': row['author_username'],
'nickname': row['author_nickname'] or row['author_username'],
'avatar': row['author_avatar'] or '/avatar2.jpg'
}
})
return {
'items': items,
'total': total,
'page': page,
'page_size': page_size,
'total_pages': (total + page_size - 1) // page_size if total > 0 else 0
}
except Exception as e:
logger.error(f"get_pending_indicators failed: {e}")
return {'items': [], 'total': 0, 'page': 1, 'page_size': page_size, 'total_pages': 0}
def review_indicator(
self,
admin_id: int,
indicator_id: int,
action: str, # 'approve' / 'reject'
note: str = ''
) -> Tuple[bool, str]:
"""审核指标"""
try:
new_status = 'approved' if action == 'approve' else 'rejected'
note = (note or '').strip()[:500]
with get_db_connection() as db:
cur = db.cursor()
# 检查指标是否存在且已发布到社区
cur.execute("""
SELECT id, name, user_id FROM qd_indicator_codes
WHERE id = ? AND publish_to_community = 1
""", (indicator_id,))
indicator = cur.fetchone()
if not indicator:
cur.close()
return False, 'indicator_not_found'
# 更新审核状态
cur.execute("""
UPDATE qd_indicator_codes
SET review_status = ?, review_note = ?, reviewed_at = NOW(), reviewed_by = ?
WHERE id = ?
""", (new_status, note, admin_id, indicator_id))
db.commit()
cur.close()
logger.info(f"Admin {admin_id} {action}d indicator {indicator_id}")
return True, 'success'
except Exception as e:
logger.error(f"review_indicator failed: {e}")
return False, f'error: {str(e)}'
def unpublish_indicator(self, admin_id: int, indicator_id: int, note: str = '') -> Tuple[bool, str]:
"""下架指标(取消发布)"""
try:
note = (note or '').strip()[:500]
with get_db_connection() as db:
cur = db.cursor()
# 检查指标是否存在
cur.execute("""
SELECT id, name FROM qd_indicator_codes WHERE id = ?
""", (indicator_id,))
indicator = cur.fetchone()
if not indicator:
cur.close()
return False, 'indicator_not_found'
# 下架(取消发布)
cur.execute("""
UPDATE qd_indicator_codes
SET publish_to_community = 0, review_status = 'rejected',
review_note = ?, reviewed_at = NOW(), reviewed_by = ?
WHERE id = ?
""", (f"下架: {note}" if note else "管理员下架", admin_id, indicator_id))
db.commit()
cur.close()
logger.info(f"Admin {admin_id} unpublished indicator {indicator_id}")
return True, 'success'
except Exception as e:
logger.error(f"unpublish_indicator failed: {e}")
return False, f'error: {str(e)}'
def admin_delete_indicator(self, admin_id: int, indicator_id: int) -> Tuple[bool, str]:
"""管理员删除指标"""
try:
with get_db_connection() as db:
cur = db.cursor()
# 检查指标是否存在
cur.execute("SELECT id, name FROM qd_indicator_codes WHERE id = ?", (indicator_id,))
indicator = cur.fetchone()
if not indicator:
cur.close()
return False, 'indicator_not_found'
# 删除关联的评论
cur.execute("DELETE FROM qd_indicator_comments WHERE indicator_id = ?", (indicator_id,))
# 删除关联的购买记录
cur.execute("DELETE FROM qd_indicator_purchases WHERE indicator_id = ?", (indicator_id,))
# 删除指标
cur.execute("DELETE FROM qd_indicator_codes WHERE id = ?", (indicator_id,))
db.commit()
cur.close()
logger.info(f"Admin {admin_id} deleted indicator {indicator_id}")
return True, 'success'
except Exception as e:
logger.error(f"admin_delete_indicator failed: {e}")
return False, f'error: {str(e)}'
def get_review_stats(self) -> Dict[str, int]:
"""获取审核统计"""
try:
with get_db_connection() as db:
cur = db.cursor()
cur.execute("""
SELECT
COUNT(*) FILTER (WHERE review_status = 'pending' OR review_status IS NULL) as pending_count,
COUNT(*) FILTER (WHERE review_status = 'approved') as approved_count,
COUNT(*) FILTER (WHERE review_status = 'rejected') as rejected_count
FROM qd_indicator_codes
WHERE publish_to_community = 1
""")
row = cur.fetchone()
cur.close()
return {
'pending': row['pending_count'] or 0,
'approved': row['approved_count'] or 0,
'rejected': row['rejected_count'] or 0
}
except Exception as e:
logger.error(f"get_review_stats failed: {e}")
return {'pending': 0, 'approved': 0, 'rejected': 0}
# ==========================================
# 实盘表现(聚合回测数据)
# ==========================================
def get_indicator_performance(self, indicator_id: int) -> Dict[str, Any]:
"""
获取指标的实盘表现统计
目前基于回测数据统计,未来可扩展为实盘交易数据
"""
default_result = {
'strategy_count': 0,
'trade_count': 0,
'win_rate': 0,
'total_profit': 0,
'avg_return': 0,
'max_drawdown': 0
}
try:
with get_db_connection() as db:
cur = db.cursor()
# 首先检查回测记录表是否存在
cur.execute("""
SELECT COUNT(*) as cnt FROM information_schema.tables
WHERE table_name = 'qd_backtest_runs'
""")
table_exists = cur.fetchone()
if not table_exists or table_exists['cnt'] == 0:
cur.close()
return default_result
# 从回测记录中统计该指标的表现
# 使用 indicator_id 字段匹配
cur.execute("""
SELECT
COUNT(*) as run_count,
AVG(CASE WHEN total_return IS NOT NULL THEN total_return ELSE 0 END) as avg_return,
AVG(CASE WHEN win_rate IS NOT NULL THEN win_rate ELSE 0 END) as avg_win_rate,
AVG(CASE WHEN max_drawdown IS NOT NULL THEN max_drawdown ELSE 0 END) as avg_drawdown,
SUM(CASE WHEN trade_count IS NOT NULL THEN trade_count ELSE 0 END) as total_trades
FROM qd_backtest_runs
WHERE indicator_id = ?
""", (indicator_id,))
row = cur.fetchone()
cur.close()
if not row or row['run_count'] == 0:
return default_result
return {
'strategy_count': row['run_count'] or 0,
'trade_count': row['total_trades'] or 0,
'win_rate': round(float(row['avg_win_rate'] or 0), 2),
'total_profit': round(float(row['avg_return'] or 0), 2),
'avg_return': round(float(row['avg_return'] or 0), 2),
'max_drawdown': round(float(row['avg_drawdown'] or 0), 2)
}
except Exception as e:
logger.error(f"get_indicator_performance failed: {e}")
return default_result
# 全局单例
_community_service = None
def get_community_service() -> CommunityService:
"""获取社区服务单例"""
global _community_service
if _community_service is None:
_community_service = CommunityService()
return _community_service