创建子表python（sqlite3）

Question

我正在寻找漫画网站。首先，我正在整理目录并创建包含名称、封面 URL 和漫画状态的

parent table

。 之后，我想为每部漫画创建

child tables

，其中包含章节列表、章节发布日期和章节 url。

下面是我正在使用的代码。不幸的是，子表根本没有创建，我不明白为什么。请帮助我错过的事情。

import sqlite3
from time import sleep
import requests
from bs4 import BeautifulSoup

connection = sqlite3.connect('parser_results.db')
cursor = connection.cursor()

cursor.execute('''
CREATE TABLE IF NOT EXISTS Comics (
  id INTEGER PRIMARY KEY,
  name TEXT NOT NULL,
  cover TEXT NOT NULL,
  status TEXT NOT NULL
  )
''')

def get_url():
  for count in range(1,2):
    url = f"https://asuratoon.com/manga/?page={count}&order=update"
    response = requests.get(url, headers=headers)
    soup = BeautifulSoup(response.text, "html.parser")
    data_url = soup.find_all('div', class_='bsx')

    for comic in data_url:
      comic_url = comic.find('a').get('href')
      yield comic_url

for comic_url in get_url():
  response = requests.get(comic_url, headers=headers)
  sleep(3)
  soup = BeautifulSoup(response.text, "html.parser")

  data_general = soup.find('div', class_='bixbox animefull')
  name = data_general.find('h1', class_='entry-title').text
  cover = data_general.find('img').get('src')
  status = data_general.find('div', class_='imptdt').text
  status = status.replace('Status ', '')
  cursor.execute('INSERT INTO Comics (name, cover, status) VALUES (?, ?, ?)', (name, cover, status))
  connection.commit()
  
cursor.execute('SELECT id FROM Comics')
ids = cursor.fetchall()
for id in ids:
  cursor.execute('''CREATE TABLE IF NOT EXISTS ChildTable_%s (
                          id INTEGER PRIMARY KEY,
                          chapter_name TEXT,
                          release_date TEXT,
                          chapter_url TEXT
                      )''' % (ids[0]))
  for comic_url in get_url():
    response = requests.get(comic_url, headers=headers)
    soup = BeautifulSoup(response.text, "html.parser")  #lxml
    data = soup.find_all('div', class_='eph-num')
    for i in data:
      chapter_name = i.find('span', class_='chapternum').text
      release_date = i.find('span', class_='chapterdate').text
      chapter_url = i.find('a').get('href')
      cursor.execute('INSERT INTO ChildTable_%s (chapter_name, release_date, chapter_url) VALUES (?, ?, ?)', (chapter_name, release_date, chapter_url))
      connection.commit()
connection.close()

我尝试了上面的代码，但没有创建子表。我不知道我的任务还有哪些其他选择。

Answer 1

我减少了代码并使用了虚拟 ID 列表，但是如果您像我的示例一样更改子创建 sql 命令，它应该可以工作：

import sqlite3

connection = sqlite3.connect('parser_results.db')
cursor = connection.cursor()

cursor.execute('''
CREATE TABLE IF NOT EXISTS Comics (
  id INTEGER PRIMARY KEY,
  name TEXT NOT NULL,
  cover TEXT NOT NULL,
  status TEXT NOT NULL
  )
''')

ids = [(1,"urlOne"),(2,"urlTwo")]
for id in ids:
    child = "ChildTable_"+str(id[0])
    cursor.execute(f"""CREATE TABLE IF NOT EXISTS [%s] (
        id INTEGER PRIMARY KEY,
        chapter_name TEXT,
        release_date TEXT,
        chapter_url TEXT
        );""" % child)
connection.commit()
connection.close()