20 lines
742 B
Python
20 lines
742 B
Python
from tabnanny import check
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from apps.em.models import ECheckRecord, Equipment
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from dateutil.relativedelta import relativedelta
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from django.utils import timezone
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class EmService:
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@classmethod
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def update_check_date(cls, equip:Equipment):
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# 根据校准检定记录变更下次日期
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check = ECheckRecord.objects.filter(equipment=equip).order_by('id').last()
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if check:
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equip.check_date = check.check_date
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if equip.cycle:
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equip.next_check_date = equip.check_date + relativedelta(months=equip.cycle)
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else:
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equip.next_check_date = None
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else:
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equip.check_date = None
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equip.next_check_date = None
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equip.save() |