def updateInfo(self, item, newlinks, oldlinks):
		'''爬虫爬完之后对数据库内容进行更新'''
		cur = self.conn.cursor()
		cur.execute("SELECT wid,did FROM Websites WHERE url=?", (item['url'],))
		wid, did = cur.fetchone()
		# website记录更新
		cur.execute("UPDATE Websites SET title=?,visited=1 WHERE wid=?", (item['title'], wid,))
		# 对应的domain记录中出度也需要更新
		cur.execute("UPDATE Domains SET outdegree=outdegree+? WHERE did=?", (len(item['links']), did,))

		# 对该网页中所有链接涉及的记录进行更新
		# 外部判断未出现过的链接
		for link,domain in newlinks:
			self.insertWebsite(link, domain)

		# 外部判断出现过的链接
		for link,domain in oldlinks:
			# 对对应的domain记录入度增加
			cur.execute("UPDATE Domains SET outdegree=outdegree+1 WHERE domain=?", (domain,))
		# 写入到文件
		self.conn.commit()
def test_validate_change_question_state_data_schema_version(self):
        expected_suggestion_dict = self.suggestion_dict

        suggestion = suggestion_registry.SuggestionAddQuestion(
            expected_suggestion_dict['suggestion_id'],
            expected_suggestion_dict['target_id'],
            expected_suggestion_dict['target_version_at_submission'],
            expected_suggestion_dict['status'], self.author_id,
            self.reviewer_id, expected_suggestion_dict['change'],
            expected_suggestion_dict['score_category'],
            expected_suggestion_dict['language_code'], False, self.fake_date)

        suggestion.validate()

        # We are not setting value in suggestion.change.question_dict
        # directly since pylint produces unsupported-assignment-operation
        # error. The detailed analysis for the same can be checked
        # in this issue: https://github.com/oppia/oppia/issues/7008.
        question_dict = suggestion.change.question_dict
        question_dict['question_state_data_schema_version'] = 0
        suggestion.change.question_dict = question_dict

        with self.assertRaisesRegex(
            utils.ValidationError,
            'Expected question state schema version to be %s, '
            'received 0' % feconf.CURRENT_STATE_SCHEMA_VERSION
        ):
            suggestion.validate()