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29 lines
1.5 KiB
Python
29 lines
1.5 KiB
Python
import logging
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def save_carefully(objectType, lookupAttribs={}, nonLookupAttribs={}):
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"""Looks up instance using lookupAttribs and carries out the following:
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-if instance does not exist in DB: add instance to DB, return (new instance, True)
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-if instance exists in DB and was modified using Troggle: do nothing, return (existing instance, False)
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-if instance exists in DB and was not modified using Troggle: overwrite instance, return (instance, False)
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The checking is accomplished using Django's get_or_create and the new_since_parsing boolean field
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defined in expo.models.TroggleModel.
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"""
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instance, created=objectType.objects.get_or_create(defaults=nonLookupAttribs, **lookupAttribs)
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if not created and not instance.new_since_parsing:
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for k, v in nonLookupAttribs.items(): #overwrite the existing attributes from the logbook text (except date and title)
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setattr(instance, k, v)
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instance.save()
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if created:
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logging.info(unicode(instance)+u' was just added to the database for the first time. \n')
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if not created and instance.new_since_parsing:
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logging.info(unicode(instance)+" has been modified using Troggle, so the current script left it as is. \n")
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if not created and not instance.new_since_parsing:
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logging.info(unicode(instance)+" existed in the database unchanged since last parse. It was overwritten by the current script. \n")
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return (instance, created) |