# -*- coding: utf-8 -*- # @Author : relakkes@gmail.com # @Time : 2023/12/3 16:16 # @Desc : B 站的模型类 import csv import pathlib from typing import Dict, List from tortoise import fields from tortoise.contrib.pydantic import pydantic_model_creator from tortoise.models import Model import config from tools import utils from var import crawler_type_var class BilibiliBaseModel(Model): id = fields.IntField(pk=True, autoincrement=True, description="自增ID") user_id = fields.CharField(null=True, max_length=64, description="用户ID") nickname = fields.CharField(null=True, max_length=64, description="用户昵称") avatar = fields.CharField(null=True, max_length=255, description="用户头像地址") add_ts = fields.BigIntField(description="记录添加时间戳") last_modify_ts = fields.BigIntField(description="记录最后修改时间戳") class Meta: abstract = True class BilibiliVideo(BilibiliBaseModel): video_id = fields.CharField(max_length=64, index=True, description="视频ID") video_type = fields.CharField(max_length=16, description="视频类型") title = fields.CharField(null=True, max_length=500, description="视频标题") desc = fields.TextField(null=True, description="视频描述") create_time = fields.BigIntField(description="视频发布时间戳", index=True) liked_count = fields.CharField(null=True, max_length=16, description="视频点赞数") video_play_count = fields.CharField(null=True, max_length=16, description="视频播放数量") video_danmaku = fields.CharField(null=True, max_length=16, description="视频弹幕数量") video_comment = fields.CharField(null=True, max_length=16, description="视频评论数量") video_url = fields.CharField(null=True, max_length=512, description="视频详情URL") video_cover_url = fields.CharField(null=True, max_length=512, description="视频封面图 URL") class Meta: table = "bilibili_video" table_description = "B站视频" def __str__(self): return f"{self.video_id} - {self.title}" class BilibiliComment(BilibiliBaseModel): comment_id = fields.CharField(max_length=64, index=True, description="评论ID") video_id = fields.CharField(max_length=64, index=True, description="视频ID") content = fields.TextField(null=True, description="评论内容") create_time = fields.BigIntField(description="评论时间戳") sub_comment_count = fields.CharField(max_length=16, description="评论回复数") class Meta: table = "bilibili_video_comment" table_description = "B 站视频评论" def __str__(self): return f"{self.comment_id} - {self.content}" async def update_bilibili_video(video_item: Dict): video_item_view: Dict = video_item.get("View") video_user_info: Dict = video_item_view.get("owner") video_item_stat: Dict = video_item_view.get("stat") video_id = str(video_item_view.get("aid")) local_db_item = { "video_id": video_id, "video_type": "video", "title": video_item_view.get("title", "")[:500], "desc": video_item_view.get("desc", "")[:500], "create_time": video_item_view.get("pubdate"), "user_id": str(video_user_info.get("mid")), "nickname": video_user_info.get("name"), "avatar": video_user_info.get("face", ""), "liked_count": str(video_item_stat.get("like", "")), "video_play_count": str(video_item_stat.get("view", "")), "video_danmaku": str(video_item_stat.get("danmaku", "")), "video_comment": str(video_item_stat.get("reply", "")), "last_modify_ts": utils.get_current_timestamp(), "video_url": f"https://www.bilibili.com/video/av{video_id}", "video_cover_url": video_item_view.get("pic", ""), } utils.logger.info(f"bilibili video id:{video_id}, title:{local_db_item.get('title')}") if config.IS_SAVED_DATABASED: if not await BilibiliVideo.filter(video_id=video_id).exists(): local_db_item["add_ts"] = utils.get_current_timestamp() bilibili_video_pydantic = pydantic_model_creator(BilibiliVideo, name='BilibiliVideoCreate', exclude=('id',)) bilibili_data = bilibili_video_pydantic(**local_db_item) bilibili_video_pydantic.model_validate(bilibili_data) await BilibiliVideo.create(**bilibili_data.model_dump()) else: bilibili_video_pydantic = pydantic_model_creator(BilibiliVideo, name='BilibiliVideoUpdate', exclude=('id', 'add_ts')) bilibili_data = bilibili_video_pydantic(**local_db_item) bilibili_video_pydantic.model_validate(bilibili_data) await BilibiliVideo.filter(video_id=video_id).update(**bilibili_data.model_dump()) else: # Below is a simple way to save it in CSV format. pathlib.Path(f"data/bilibili").mkdir(parents=True, exist_ok=True) save_file_name = f"data/bilibili/{crawler_type_var.get()}_videos_{utils.get_current_date()}.csv" with open(save_file_name, mode='a+', encoding="utf-8-sig", newline="") as f: writer = csv.writer(f) if f.tell() == 0: writer.writerow(local_db_item.keys()) writer.writerow(local_db_item.values()) async def batch_update_bilibili_video_comments(video_id: str, comments: List[Dict]): if not comments: return for comment_item in comments: await update_bilibili_video_comment(video_id, comment_item) async def update_bilibili_video_comment(video_id: str, comment_item: Dict): comment_id = str(comment_item.get("rpid")) content: Dict = comment_item.get("content") user_info: Dict = comment_item.get("member") local_db_item = { "comment_id": comment_id, "create_time": comment_item.get("ctime"), "video_id": video_id, "content": content.get("message"), "user_id": user_info.get("mid"), "nickname": user_info.get("uname"), "avatar": user_info.get("avatar"), "sub_comment_count": str(comment_item.get("rcount", 0)), "last_modify_ts": utils.get_current_timestamp(), } utils.logger.info(f"Bilibili video comment: {comment_id}, content: {local_db_item.get('content')}") if config.IS_SAVED_DATABASED: if not await BilibiliComment.filter(comment_id=comment_id).exists(): local_db_item["add_ts"] = utils.get_current_timestamp() comment_pydantic = pydantic_model_creator(BilibiliComment, name='BilibiliVideoCommentCreate', exclude=('id',)) comment_data = comment_pydantic(**local_db_item) comment_pydantic.validate(comment_data) await BilibiliComment.create(**comment_data.dict()) else: comment_pydantic = pydantic_model_creator(BilibiliComment, name='BilibiliVideoCommentUpdate', exclude=('id', 'add_ts')) comment_data = comment_pydantic(**local_db_item) comment_pydantic.validate(comment_data) await BilibiliComment.filter(comment_id=comment_id).update(**comment_data.dict()) else: pathlib.Path(f"data/bilibili").mkdir(parents=True, exist_ok=True) save_file_name = f"data/bilibili/{crawler_type_var.get()}_comments_{utils.get_current_date()}.csv" with open(save_file_name, mode='a+', encoding="utf-8-sig", newline="") as f: writer = csv.writer(f) if f.tell() == 0: writer.writerow(local_db_item.keys()) writer.writerow(local_db_item.values())