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dlo/sample.py

Forked from afroisalreadyinu/sample.py
Last active August 25, 2016 15:24
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sample.py
import operator
def build_book_inventory(book_ids, shops):
shop_labels = map(operator.itemgetter('label'), shops)
books = Persistency.books_table.read(shops=shop_labels, books=book_ids)
inventory = {}
for book in books:
shop_inventory = inventory.setdefault(book['shop_label'])
book_inventory = shop_inventory.setdefault(book['cell_label'], {})
book_inventory[book['book_id']] = book['count']
return inventory
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