database.py 2.6 KB

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  1. # 导入:
  2. import uuid
  3. from datetime import datetime
  4. from urllib import parse
  5. import yaml
  6. from sqlalchemy import Column, Integer, String, DateTime, Text, and_
  7. from sqlalchemy.ext.declarative import declarative_base
  8. from sqlalchemy.orm import sessionmaker
  9. from config.url_and_db import ai_word_engine
  10. # 创建对象的基类:
  11. Base = declarative_base()
  12. passowrd = parse.quote_plus('hcst@2020')
  13. # 定义User对象:
  14. class Task(Base):
  15. # 表的名字:
  16. __tablename__ = 'tb_asr_result'
  17. # 表的结构:
  18. signature = Column(String(100))
  19. task_id = Column(Integer, primary_key=True)
  20. task_status = Column(Integer)
  21. task_result = Column(Text)
  22. word_text = Column(Text)
  23. word_split = Column(Text)
  24. word_text_md5 = Column(Text)
  25. create_time = Column(DateTime, nullable=True, default=datetime.now)
  26. update_time = Column(DateTime)
  27. # 初始化数据库连接:
  28. with open('/data/pythonProject/video_to_word/config/config.yaml', mode='r', encoding='utf-8') as f:
  29. config = yaml.load(f.read(), Loader=yaml.FullLoader)
  30. # 创建DBSession类型:
  31. DBSession = sessionmaker(bind=ai_word_engine)
  32. def query(signature, task_status, task_id):
  33. condition = (1 == 1)
  34. if signature != None:
  35. condition = and_(condition, Task.signature == signature)
  36. if task_status != None:
  37. condition = and_(condition, Task.task_status == task_status)
  38. if task_id != None:
  39. condition = and_(condition, Task.task_id == task_id)
  40. # 创建Session:
  41. session = DBSession()
  42. # 创建Query查询,filter是where条件,最后调用one()返回唯一行,如果调用all()则返回所有行:
  43. task = session.query(Task).filter(condition).order_by(Task.create_time.desc()).all()
  44. # 关闭Session:
  45. session.close()
  46. return task
  47. def insert(task: Task):
  48. # 创建session对象:
  49. session = DBSession()
  50. # 添加到session:
  51. session.add(task)
  52. session.flush()
  53. # 提交即保存到数据库:
  54. session.commit()
  55. # 关闭session:
  56. session.close()
  57. return task
  58. def update(task):
  59. # 创建session对象:
  60. session = DBSession()
  61. taskdb = session.query(Task).filter(Task.task_id == task.task_id).one()
  62. taskdb.task_status = task.task_status
  63. taskdb.word_text = task.word_text
  64. taskdb.word_split = task.word_split
  65. taskdb.word_text_md5 = task.word_text_md5
  66. taskdb.task_result = task.task_result
  67. # 提交即保存到数据库:
  68. session.commit()
  69. # 关闭session:
  70. session.close()
  71. if __name__ == '__main__':
  72. print('test query')
  73. # task = Task(task_id = '3',task_status=1,signature='dx')
  74. # task = insert(task)
  75. task = query(None, None, 1)[0]
  76. print(task.signature)
  77. # update(task)