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Diffstat (limited to 'common/src/main/webapp/usageguide/appserver/node_modules/mongoose/examples/mapreduce/mapreduce.js')
-rw-r--r-- | common/src/main/webapp/usageguide/appserver/node_modules/mongoose/examples/mapreduce/mapreduce.js | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/common/src/main/webapp/usageguide/appserver/node_modules/mongoose/examples/mapreduce/mapreduce.js b/common/src/main/webapp/usageguide/appserver/node_modules/mongoose/examples/mapreduce/mapreduce.js deleted file mode 100644 index 6d67fbf4..00000000 --- a/common/src/main/webapp/usageguide/appserver/node_modules/mongoose/examples/mapreduce/mapreduce.js +++ /dev/null @@ -1,100 +0,0 @@ -// import async to make control flow simplier -var async = require('async'); - -// import the rest of the normal stuff -var mongoose = require('../../lib'); - -require('./person.js')(); - -var Person = mongoose.model('Person'); - -// define some dummy data -var data = [ - { - name: 'bill', - age: 25, - birthday: new Date().setFullYear((new Date().getFullYear() - 25)), - gender: 'Male' - }, - { - name: 'mary', - age: 30, - birthday: new Date().setFullYear((new Date().getFullYear() - 30)), - gender: 'Female' - }, - { - name: 'bob', - age: 21, - birthday: new Date().setFullYear((new Date().getFullYear() - 21)), - gender: 'Male' - }, - { - name: 'lilly', - age: 26, - birthday: new Date().setFullYear((new Date().getFullYear() - 26)), - gender: 'Female' - }, - { - name: 'alucard', - age: 1000, - birthday: new Date().setFullYear((new Date().getFullYear() - 1000)), - gender: 'Male' - } -]; - - -mongoose.connect('mongodb://localhost/persons', function(err) { - if (err) throw err; - - // create all of the dummy people - async.each(data, function(item, cb) { - Person.create(item, cb); - }, function(err) { - if (err) { - // handle error - } - - // alright, simple map reduce example. We will find the total ages of each - // gender - - // create the options object - var o = {}; - - o.map = function() { - // in this function, 'this' refers to the current document being - // processed. Return the (gender, age) tuple using - /* global emit */ - emit(this.gender, this.age); - }; - - // the reduce function receives the array of ages that are grouped by the - // id, which in this case is the gender - o.reduce = function(id, ages) { - return Array.sum(ages); - }; - - // other options that can be specified - - // o.query = { age : { $lt : 1000 }}; // the query object - // o.limit = 3; // max number of documents - // o.keeptemp = true; // default is false, specifies whether to keep temp data - // o.finalize = someFunc; // function called after reduce - // o.scope = {}; // the scope variable exposed to map/reduce/finalize - // o.jsMode = true; // default is false, force execution to stay in JS - o.verbose = true; // default is false, provide stats on the job - // o.out = {}; // objects to specify where output goes, by default is - // returned, but can also be stored in a new collection - // see: http://mongoosejs.com/docs/api.html#model_Model.mapReduce - Person.mapReduce(o, function(err, results, stats) { - console.log('map reduce took %d ms', stats.processtime); - console.log(results); - cleanup(); - }); - }); -}); - -function cleanup() { - Person.remove(function() { - mongoose.disconnect(); - }); -} |