Coverage for /pythoncovmergedfiles/medio/medio/src/airflow/build/lib/airflow/models/taskfail.py: 61%

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18"""Taskfail tracks the failed run durations of each task instance.""" 

19from __future__ import annotations 

20 

21from sqlalchemy import Column, ForeignKeyConstraint, Index, Integer, text 

22from sqlalchemy.orm import relationship 

23 

24from airflow.models.base import Base, StringID 

25from airflow.utils.sqlalchemy import UtcDateTime 

26 

27 

28class TaskFail(Base): 

29 """TaskFail tracks the failed run durations of each task instance.""" 

30 

31 __tablename__ = "task_fail" 

32 

33 id = Column(Integer, primary_key=True) 

34 task_id = Column(StringID(), nullable=False) 

35 dag_id = Column(StringID(), nullable=False) 

36 run_id = Column(StringID(), nullable=False) 

37 map_index = Column(Integer, nullable=False, server_default=text("-1")) 

38 start_date = Column(UtcDateTime) 

39 end_date = Column(UtcDateTime) 

40 duration = Column(Integer) 

41 

42 __table_args__ = ( 

43 Index("idx_task_fail_task_instance", dag_id, task_id, run_id, map_index), 

44 ForeignKeyConstraint( 

45 [dag_id, task_id, run_id, map_index], 

46 [ 

47 "task_instance.dag_id", 

48 "task_instance.task_id", 

49 "task_instance.run_id", 

50 "task_instance.map_index", 

51 ], 

52 name="task_fail_ti_fkey", 

53 ondelete="CASCADE", 

54 ), 

55 ) 

56 

57 # We don't need a DB level FK here, as we already have that to TI (which has one to DR) but by defining 

58 # the relationship we can more easily find the execution date for these rows 

59 dag_run = relationship( 

60 "DagRun", 

61 primaryjoin="""and_( 

62 TaskFail.dag_id == foreign(DagRun.dag_id), 

63 TaskFail.run_id == foreign(DagRun.run_id), 

64 )""", 

65 viewonly=True, 

66 ) 

67 

68 def __init__(self, ti): 

69 self.dag_id = ti.dag_id 

70 self.task_id = ti.task_id 

71 self.run_id = ti.run_id 

72 self.map_index = ti.map_index 

73 self.start_date = ti.start_date 

74 self.end_date = ti.end_date 

75 if self.end_date and self.start_date: 

76 self.duration = int((self.end_date - self.start_date).total_seconds()) 

77 else: 

78 self.duration = None 

79 

80 def __repr__(self): 

81 prefix = f"<{self.__class__.__name__}: {self.dag_id}.{self.task_id} {self.run_id}" 

82 if self.map_index != -1: 

83 prefix += f" map_index={self.map_index}" 

84 return prefix + ">"