mirror of
https://github.com/mgerb/mywebsite
synced 2026-01-12 02:42:48 +00:00
79 lines
2.8 KiB
JavaScript
79 lines
2.8 KiB
JavaScript
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// import async to make control flow simplier
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var async = require('async');
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// import the rest of the normal stuff
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var mongoose = require('../../lib');
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require('./person.js')();
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var Person = mongoose.model('Person');
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// define some dummy data
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var data = [
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{ name : 'bill', age : 25, birthday : new Date().setFullYear((new
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Date().getFullYear() - 25)), gender : "Male",
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likes : ['movies', 'games', 'dogs']},
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{ name : 'mary', age : 30, birthday : new Date().setFullYear((new
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Date().getFullYear() - 30)), gender : "Female",
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likes : ['movies', 'birds', 'cats']},
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{ name : 'bob', age : 21, birthday : new Date().setFullYear((new
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Date().getFullYear() - 21)), gender : "Male",
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likes : ['tv', 'games', 'rabbits']},
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{ name : 'lilly', age : 26, birthday : new Date().setFullYear((new
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Date().getFullYear() - 26)), gender : "Female",
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likes : ['books', 'cats', 'dogs']},
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{ name : 'alucard', age : 1000, birthday : new Date().setFullYear((new
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Date().getFullYear() - 1000)), gender : "Male",
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likes : ['glasses', 'wine', 'the night']},
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];
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mongoose.connect('mongodb://localhost/persons', function (err) {
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if (err) throw err;
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// create all of the dummy people
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async.each(data, function (item, cb) {
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Person.create(item, cb);
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}, function (err) {
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// run an aggregate query that will get all of the people who like a given
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// item. To see the full documentation on ways to use the aggregate
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// framework, see http://docs.mongodb.org/manual/core/aggregation/
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Person.aggregate(
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// select the fields we want to deal with
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{ $project : { name : 1, likes : 1 } },
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// unwind 'likes', which will create a document for each like
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{ $unwind : "$likes" },
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// group everything by the like and then add each name with that like to
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// the set for the like
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{ $group : {
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_id : { likes : "$likes" },
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likers : { $addToSet : "$name" }
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} },
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function (err, result) {
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if (err) throw err;
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console.log(result);
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//[ { _id: { likes: 'the night' }, likers: [ 'alucard' ] },
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//{ _id: { likes: 'wine' }, likers: [ 'alucard' ] },
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//{ _id: { likes: 'books' }, likers: [ 'lilly' ] },
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//{ _id: { likes: 'glasses' }, likers: [ 'alucard' ] },
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//{ _id: { likes: 'birds' }, likers: [ 'mary' ] },
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//{ _id: { likes: 'rabbits' }, likers: [ 'bob' ] },
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//{ _id: { likes: 'cats' }, likers: [ 'lilly', 'mary' ] },
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//{ _id: { likes: 'dogs' }, likers: [ 'lilly', 'bill' ] },
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//{ _id: { likes: 'tv' }, likers: [ 'bob' ] },
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//{ _id: { likes: 'games' }, likers: [ 'bob', 'bill' ] },
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//{ _id: { likes: 'movies' }, likers: [ 'mary', 'bill' ] } ]
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cleanup();
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});
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});
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});
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function cleanup() {
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Person.remove(function() {
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mongoose.disconnect();
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});
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}
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