127 lines
4.0 KiB
Python
127 lines
4.0 KiB
Python
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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基础模型模块
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包含所有模型共用的字段和方法
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"""
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import datetime
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from sqlalchemy import Column, Integer, DateTime, Boolean
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from config.database import Base
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class BaseModel(Base):
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"""
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基础模型类
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包含所有模型共用的字段和方法
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"""
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__abstract__ = True # 声明为抽象类，不会创建表
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id = Column(Integer, primary_key=True, autoincrement=True, comment='主键ID')
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created_at = Column(DateTime, default=datetime.datetime.now, comment='创建时间')
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updated_at = Column(DateTime, default=datetime.datetime.now, onupdate=datetime.datetime.now, comment='更新时间')
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is_deleted = Column(Boolean, default=False, comment='是否删除（软删除标记）')
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def to_dict(self):
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"""
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将模型转换为字典
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用于API响应
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"""
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result = {}
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for column in self.__table__.columns:
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value = getattr(self, column.name)
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# 处理日期时间类型
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if isinstance(value, datetime.datetime):
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value = value.strftime('%Y-%m-%d %H:%M:%S')
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result[column.name] = value
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return result
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def to_json(self, fields=None, exclude=None, timestamp_format='ms'):
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"""
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将模型转换为JSON友好的字典
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Args:
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fields (list, optional): 需要包含的字段列表，为None则包含所有字段
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exclude (list, optional): 需要排除的字段列表
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timestamp_format (str, optional): 时间戳格式，可选值：'ms'（毫秒时间戳）, 'iso'（ISO格式）, 'str'（字符串格式）
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Returns:
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dict: 包含指定字段的字典
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"""
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result = {}
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# 获取所有列名
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columns = [column.name for column in self.__table__.columns]
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# 如果指定了fields，则只包含这些字段
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if fields:
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columns = [col for col in columns if col in fields]
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# 排除指定的字段
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if exclude:
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columns = [col for col in columns if col not in exclude]
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# 获取字段值
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for column in columns:
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value = getattr(self, column)
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# 处理日期时间类型
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if isinstance(value, datetime.datetime):
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if timestamp_format == 'ms':
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# 转换为毫秒时间戳
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value = int(value.timestamp() * 1000)
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elif timestamp_format == 'iso':
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# 转换为ISO格式
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value = value.isoformat()
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else:
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# 转换为字符串格式
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value = value.strftime('%Y-%m-%d %H:%M:%S')
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# 处理枚举类型
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elif hasattr(value, 'name') and hasattr(value, 'value'):
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# 如果是枚举类型，返回其值
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value = value.value
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result[column] = value
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return result
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@classmethod
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def get_by_id(cls, id):
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"""
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根据ID获取记录
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"""
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return cls.query.filter(cls.id == id, cls.is_deleted == False).first()
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@classmethod
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def get_all(cls, page=1, per_page=20):
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"""
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获取所有记录（分页）
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"""
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return cls.query.filter(cls.is_deleted == False).paginate(page=page, per_page=per_page)
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def save(self):
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"""
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保存记录
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"""
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from config.database import db_session
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db_session.add(self)
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db_session.commit()
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return self
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def delete(self):
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"""
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删除记录（软删除）
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"""
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self.is_deleted = True
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self.save()
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return self
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def hard_delete(self):
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"""
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硬删除记录
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"""
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from config.database import db_session
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db_session.delete(self)
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db_session.commit()
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return self
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