DjangoAdmin_FastAPI_EleVue/apps/services/user_role.py

from apps.models.user_role import UserRole
from apps.models.role import Role
from extensions import get_db_session


# 根据用户ID查询角色列表

def get_user_role_list(userId):
    db = get_db_session()
    rows = (
        db.query(Role.id, Role.name)
        .join(UserRole, UserRole.role_id == Role.id)
        .filter(UserRole.user_id == userId, Role.is_delete == 0)
        .all()
    )
    role_list = []
    if rows:
        for v in rows:
            item = {
                'id': v.id,
                'name': v.name,
            }
            role_list.append(item)
    return role_list


# 根据用户ID列表批量查询角色，返回 {user_id: [{id, name}, ...]} 字典

def get_user_role_map(user_ids):
    if not user_ids:
        return {}
    db = get_db_session()
    # 用ORM查询替代原生SQL，避免tuple单元素/空列表的IN语法问题
    from apps.models.user_role import UserRole
    from apps.models.role import Role
    rows = (
        db.query(UserRole.user_id, Role.id.label('role_id'), Role.name.label('role_name'))
        .join(Role, Role.id == UserRole.role_id)
        .filter(UserRole.user_id.in_(user_ids), Role.is_delete == 0)
        .all()
    )
    role_map = {}
    for row in rows:
        uid = row.user_id
        if uid not in role_map:
            role_map[uid] = []
        role_map[uid].append({'id': row.role_id, 'name': row.role_name})
    return role_map