mirror of https://gitee.com/bigwinds/arangodb
50 lines
2.7 KiB
Plaintext
50 lines
2.7 KiB
Plaintext
/* getting the names of friends (also users) for users. this is achieved by "joining" a relations table */
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FOR u IN users
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FILTER u.active == true
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LET friends = (FOR f IN userRelations
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FILTER f.from == u.id
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FOR u2 IN users
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FILTER f.to == u2.id
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RETURN u2.name
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)
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RETURN { "user" : u.name, "friends" : friends }
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[ { "user" : "John", "friends" : ["Diego", "Mary", "Abigail"] },
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{ "user" : "Anthony", "friends" : ["Madison"] },
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{ "user" : "Fred", "friends" : ["Mariah"] },
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{ "user" : "Jim", "friends" : ["Mariah"] },
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{ "user" : "Diego", "friends" : ["Mary"] },
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{ "user" : "Sophia", "friends" : ["Madison", "John"] },
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{ "user" : "Michael", "friends" : ["John", "Jim"] },
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{ "user" : "Emma", "friends" : ["Jacob", "Madison"] },
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{ "user" : "Alexander", "friends" : ["Michael", "John"] },
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{ "user" : "Daniel", "friends" : ["Eva"] },
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{ "user" : "Madison", "friends" : ["Anthony", "Daniel"] },
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{ "user" : "Chloe", "friends" : ["Alexander"] },
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{ "user" : "Abigail", "friends" : ["Daniel", "John", "Jacob", "Jim"] },
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{ "user" : "Isabella", "friends" : ["Madison", "Diego"] },
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{ "user" : "Mary", "friends" : ["Isabella", "Diego", "Michael"] },
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{ "user" : "Mariah", "friends" : ["Madison", "Ethan", "Eva"] } ]
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/* getting users favorite song names from a joined "songs" collection */
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FOR u IN users
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LET likes = (
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FOR s IN songs
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FILTER s._id IN u.likes
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RETURN CONCAT(s.artist, " - ", s.song)
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)
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SORT RAND()
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LIMIT 0, 8
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RETURN { "user" : u.name, "likes" : likes }
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[ { "user" : "Eva", "likes" : ["Chocolate - Ritmo De La Noche", "4 The Cause - Stand By Me", "Tony Carey - Room with a view"] },
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{ "user" : "Mary", "likes" : ["Hall and Oates - Maneater", "Elton John - Candle In The Wind", "A-Ha - Crying In The Rain", "Laid Back - Sunshine Reggae", "Cock Robin - The promise you made"] },
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{ "user" : "Alexander", "likes" : ["Moby - Feel so real", "Rednex - Old pop in an oak", "2 Unlimited - No Limit"] },
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{ "user" : "Michael", "likes" : ["The Kelly Family - David's Song"] },
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{ "user" : "Ethan", "likes" : ["Technotronic - Megamix", "Gipsy Kings - Baila me", "Goombay Dance Band - Seven Tears", "Sandra - Hiroshima"] }, { "user" : "Isabella", "likes" : ["Milli Vanilli - Girl, I'm Gonna Miss You", "Technotronic - Get Up", "Right Said Fred - Don't Talk Just Kiss", "Peter Schilling - Major Tom (Völlig losgelöst)"] },
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{ "user" : "Abigail", "likes" : ["Tina Turner - Typical male", "Liquido - Narcotic"] },
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{ "user" : "Jim", "likes" : ["Berlin - Take my breath away", "Ashford & Simpson - Solid", "Fine Young Cannibals - She drives me cracy", "Cut'N'Move - Give it up", "Cyndi Lauper - Time after time"] },
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{ "user" : "Jacob", "likes" : ["Kylie Minogue - The Loco-motion", "Eruption - Runaway"] } ]
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