Pages of particle-prized people

You and a friend want to set up a website that gives information on Nobel laureates with awards relating to particle phenomena. You want to present these laureates one page at a time, with three laureates per page. You decide to order the laureates chronologically by award year. When there is a "tie" in ordering (i.e. two laureates were awarded prizes in the same year), you want to order them alphabetically by surname.

Este exercício faz parte do curso

Introduction to MongoDB in Python

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Instruções do exercício

Complete the function get_particle_laureates that, given page_number and page_size, retrieves a given page of prize data on laureates who have the word "particle" (use $regex) in their prize motivations ("prizes.motivation"). Sort laureates first by ascending "prizes.year" and next by ascending "surname".
Collect and save the first nine pages of laureate data to pages.

Exercício interativo prático

Experimente este exercício completando este código de exemplo.

from pprint import pprint

# Write a function to retrieve a page of data
def get_particle_laureates(page_number=1, page_size=3):
    if page_number < 1 or not isinstance(page_number, int):
        raise ValueError("Pages are natural numbers (starting from 1).")
    particle_laureates = list(
        db.laureates.find(
            {____: {____: "particle"}},
            ["firstname", "surname", "prizes"])
        .____([(____, 1), (____, 1)])
        .skip(page_size * (page_number - 1))
        .____(page_size))
    return particle_laureates

# Collect and save the first nine pages
pages = [____(page_number=page) for page in range(1,9)]
pprint(pages[0])

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