60 lines
2.2 KiB
Python
60 lines
2.2 KiB
Python
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from django.core.management.base import BaseCommand
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from django.db.models import Q, F, Count, Sum
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from regluit.core.models import Campaign
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STATS_TEMPLATE = """Total Pledged: {0} by {1} Pledgers
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Distribution of Pledges:
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{2}
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Premiums Offered:
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{3}
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Premiums Selected:
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{4}
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Number of Transactions without premiums selected: {5}"""
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def campaign_stats(c):
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# Use aggregations: https://docs.djangoproject.com/en/dev/topics/db/aggregation/#cheat-sheet
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transactions = c.transaction_set.filter(Q(status='Canceled') & Q(reason ='Amazon FPS shutdown'))
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amount_sum = transactions.aggregate(Sum('amount'))['amount__sum']
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number_pledgers = transactions.count()
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# do we have unique
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amount_table = "Level\tCount\tTotal\n" + "\n".join(["{0}\t{1}\t{2}".format(k['amount'], k['count_amount'], k['amount']*k['count_amount']) for k in transactions.values('amount').annotate(count_amount=Count('amount')).order_by('-amount')])
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# premiums offered
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premiums_offered = "id\tamount\tdescription\tcampaign_id\n" + "\n".join(["{0}\t{1}\t{2}\t{3}".format(p.id, p.amount, p.description, p.campaign_id) for p in c.effective_premiums()])
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transactions_null_premiums_count = transactions.filter(premium__isnull=True).count()
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# list stats around premiums
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premium_selected = "Amount\tCount\tPrem. id\tDescription\n" + \
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"\n".join(["{0}\t{1}\t{2}\t{3}".format(k['premium__amount'], k['count_premium'],
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k['premium'], k['premium__description']) for k in
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transactions.filter(premium__isnull=False).values('premium',
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'premium__description', 'premium__amount').annotate(count_premium=Count( 'premium')).order_by('premium__amount')])
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return(STATS_TEMPLATE.format(amount_sum, number_pledgers, amount_table, premiums_offered, premium_selected, transactions_null_premiums_count))
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class Command(BaseCommand):
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help = "Displays data about old campaigns"
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# args = "<filename> <username>"
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def handle(self, **options):
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# Melinda's campaign
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c6 = Campaign.objects.get(id=6)
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print campaign_stats(c6)
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