Find listings that have a "washer" amenity and located in Italy or Spain
Find all the listings with listing_url, name, address and amenities, review scores in the listingsAndReviews collection that have a "washer" amenity and are located in either Italy or Spain.
Structure of 'listingsAndReviews' collection:
{ _id: '10059872', listing_url: 'https://www.airbnb.com/rooms/10059872', name: 'Soho Cozy, Spacious and Convenient', summary: 'Clean, fully furnish, Spacious 1 bedroom flat just off the escalator in Mid Levels. 2 minutes From Soho Bar and Restaurants. Located in a quiet alley 1 minute from Sun Yat Sen', space: '', description: 'Clean, fully furnish, Spacious 1 bedroom flat just off the escalator in Mid Levels. 2 minutes From Soho Bar and Restaurants. Located in a quiet alley 1 minute from Sun Yat Sen', neighborhood_overview: '', notes: '', transit: '', access: '', interaction: '', house_rules: '', property_type: 'Apartment', room_type: 'Entire home/apt', bed_type: 'Real Bed', minimum_nights: '4', maximum_nights: '20', cancellation_policy: 'flexible', last_scraped: ISODate("2019-03-11T04:00:00.000Z"), calendar_last_scraped: ISODate("2019-03-11T04:00:00.000Z"), first_review: ISODate("2015-12-19T05:00:00.000Z"), last_review: ISODate("2018-03-27T04:00:00.000Z"), accommodates: 3, bedrooms: 1, beds: 2, number_of_reviews: 3, bathrooms: Decimal128("1.0"), amenities: [ 'Air conditioning', 'Kitchen', 'Smoking allowed', 'Doorman', 'Elevator', 'Heating', 'Family/kid friendly', 'Essentials', '24-hour check-in', 'translation missing: en.hosting_amenity_50' ], price: Decimal128("699.00"), weekly_price: Decimal128("5000.00"), extra_people: Decimal128("0.00"), guests_included: Decimal128("1"), images: { thumbnail_url: '', medium_url: '', picture_url: 'https://a0.muscache.com/im/pictures/4533a1dc-6fd8-4167-938d-391c6eebbc19.jpg?aki_policy=large', xl_picture_url: '' }, host: { host_id: '51624384', host_url: 'https://www.airbnb.com/users/show/51624384', host_name: 'Giovanni', host_location: 'Hong Kong, Hong Kong', host_about: '', host_thumbnail_url: 'https://a0.muscache.com/im/pictures/264b82a7-756f-4da8-b607-dc9759e2a10f.jpg?aki_policy=profile_small', host_picture_url: 'https://a0.muscache.com/im/pictures/264b82a7-756f-4da8-b607-dc9759e2a10f.jpg?aki_policy=profile_x_medium', host_neighbourhood: 'Soho', host_is_superhost: false, host_has_profile_pic: true, host_identity_verified: false, host_listings_count: 1, host_total_listings_count: 1, host_verifications: [ 'email', 'phone', 'reviews', 'jumio', 'government_id' ] }, address: { street: 'Hong Kong, Hong Kong Island, Hong Kong', suburb: 'Central & Western District', government_area: 'Central & Western', market: 'Hong Kong', country: 'Hong Kong', country_code: 'HK', location: { type: 'Point', coordinates: [ 114.15027, 22.28158 ], is_location_exact: true } }, availability: { availability_30: 0, availability_60: 0, availability_90: 0, availability_365: 0 }, review_scores: { review_scores_accuracy: 10, review_scores_cleanliness: 10, review_scores_checkin: 10, review_scores_communication: 10, review_scores_location: 10, review_scores_value: 8, review_scores_rating: 100 }, reviews: [ { _id: '56904633', date: ISODate("2015-12-19T05:00:00.000Z"), listing_id: '10059872', reviewer_id: '5302612', reviewer_name: 'Octavio', comments: 'The host canceled this reservation 11 days before arrival. This is an automated posting.' }, { _id: '223175530', date: ISODate("2018-01-01T05:00:00.000Z"), listing_id: '10059872', reviewer_id: '48436743', reviewer_name: 'Ross', comments: 'Giovanni was very helpful and responsive to my questions. This is a great apartment that is very convenient for exploring Hong Kong.' }, { _id: '247251577', date: ISODate("2018-03-27T04:00:00.000Z"), listing_id: '10059872', reviewer_id: '111288273', reviewer_name: 'Christian', comments: 'The host canceled this reservation 8 days before arrival. This is an automated posting.' } ] }, .......
Query:
db.listingsAndReviews.find({
"amenities": "Washer",
"$or": [
{"address.country": "Italy"},
{"address.country": "Spain"}
]
}, {
"listing_url": 1,
"name": 1,
"address": 1,
"review_scores": 1,
"_id": 0
})
Output:
{ listing_url: 'https://www.airbnb.com/rooms/11648362', name: 'Habitacióncentro Barcelona', amenities: [ 'Wifi', 'Wheelchair accessible', 'Kitchen', 'Pets allowed', 'Doorman', 'Pets live on this property', 'Dog(s)', 'Buzzer/wireless intercom', 'Washer', 'Essentials', 'Shampoo', 'Lock on bedroom door', 'Hangers', 'Hair dryer', 'Laptop friendly workspace' ], address: { street: 'Barcelona, Catalunya, Spain', suburb: 'Gràcia', government_area: "la Dreta de l'Eixample", market: 'Barcelona', country: 'Spain', country_code: 'ES', location: { type: 'Point', coordinates: [ 2.16126, 41.39796 ], is_location_exact: true } }, review_scores: {} }, { listing_url: 'https://www.airbnb.com/rooms/1169088', name: 'Next to Barcelona Fair and Magic Fountain', amenities: [ 'TV', 'Wifi', 'Kitchen', 'Heating', 'Family/kid friendly', 'Washer', 'Essentials', 'Iron', 'Bed linens', 'Ethernet connection', 'Microwave', 'Coffee maker', 'Refrigerator', 'Dishwasher', 'Dishes and silverware', 'Oven', 'Patio or balcony' ], address: { street: 'Barcelona, Catalunya, Spain', suburb: 'Eixample', government_area: 'SantAntoni', market: 'Barcelona', country: 'Spain', country_code: 'ES', location: { type: 'Point', coordinates: [ 2.15375, 41.37587 ], is_location_exact: true } }, review_scores: { review_scores_accuracy: 9, review_scores_cleanliness: 10, review_scores_checkin: 9, review_scores_communication: 9, review_scores_location: 9, review_scores_value: 9, review_scores_rating: 84 } }
Explanation:
The said query in MongoDB that retrieves documents in the listingsAndReviews collection that have a "washer" amenity and are located in either Italy or Spain.
In the find() method the first condition checks for the presence of "Washer" in the amenities array. The second condition uses the $or operator to check if the country field in the address object is either "Italy" or "Spain".
The projection object includes the listing_url, name, address, review_scores fields, and exclude _id field.
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https://w3resource.com/mongodb-exercises/mongodb-listingsandreviews-exercise-18.php
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