Archived
141 lines
3.6 KiB
Python
141 lines
3.6 KiB
Python
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#!/usr/bin/env python3
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# -- coding:utf-8 --
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# @Author: markushammered@gmail.com
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# @Development Tool: PyCharm
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# @Create Time: 2022/2/27
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# @File Name: SQLite_.py
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import sqlite3
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class SQLite:
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"""操作SQLite数据库"""
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def __init__(self,
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path: str = './bin/db/data.db'
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) -> None:
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"""
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初始化SQLite对象
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:param path: 数据库路径
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"""
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self.__path = path
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self.__conn = sqlite3.connect(self.__path)
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self.__cursor = self.__conn.cursor()
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def __del__(self) -> None:
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"""
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自动提交
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自动关闭连接
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:return:
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"""
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self.__conn.commit()
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self.__cursor.close()
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self.__conn.close()
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@property
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def show_tables(self) -> list:
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"""
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列出所有在数据库内的表
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:return:
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"""
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self.__cursor.execute('select * from sqlite_master where type="table"')
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tables = self.__cursor.fetchall()
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lst = []
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for table in tables:
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lst.append(table[1])
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del tables
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return lst
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def exist_name(self, name: str) -> bool:
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"""
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判断当前名称是否在数据库内
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调用fetch方法判断
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:param name:
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:return:
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"""
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status = self.fetch(name)
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if status == ():
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return False
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else:
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return True
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def exist_table(self, table: str) -> bool:
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"""
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判断表是否在数据库内
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:param table:
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:return:
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"""
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tables = self.show_tables
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if table in tables:
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return True
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else:
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return False
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def insert(self, name: str, times: int) -> bool:
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"""
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插入数据
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:param name:
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:param times:
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:return:
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"""
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self.__cursor.execute(
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'insert into reqcount values(name="%(name)s", times=%(times)s)' % {'name': name, 'times': times})
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return True
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def delete(self, name: str) -> bool:
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"""
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删除数据
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:param name:
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:return:
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"""
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self.__cursor.execute('delete from reqcount where name="%(name)s"' % {'name': name})
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return True
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def fetch(self, name: str) -> tuple:
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"""
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抓取数据
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:param name:
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:return:
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"""
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self.__cursor.execute('select * from reqcount where name="%(name)s"' % {'name': name})
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data = self.__cursor.fetchall()
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if len(data):
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return data[0]
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else:
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return tuple(data)
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def update(self, name: str, times: int) -> bool:
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"""
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更新数据
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:param name:
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:param times:
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:return:
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"""
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self.__cursor.execute(
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'update reqcount set times=%(times)s where name="%(name)s"' % {'times': times, 'name': name})
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return True
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def fetching_table(self, table: str) -> list[dict]:
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"""
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抓取主题表的数据
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:param table:
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:return:
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"""
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status = self.exist_table(table)
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if status:
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tables = self.__cursor.execute('select * from %(table)s' % {'table': table})
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lst = []
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for data in tables:
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lst.append({'index': data[0],
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'base64': data[1],
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'width': data[2],
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'height': data[3]})
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del tables
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return lst
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else:
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return []
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sqlite = SQLite('../db/data.db')
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print(sqlite.fetching_table('gelbooru'))
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