Created
August 28, 2014 18:56
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mapreduce
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function agg_session_count(){ | |
db.logs.mapReduce( | |
function(){ | |
var local_zone = new Date().getTimezoneOffset() | |
var br_zone = 3*60; | |
var date_br = parseInt(this.when)+(br_zone-local_zone)*60; | |
var date = new Date(date_br*1000); | |
var date_format = date.getFullYear()+"-"+date.getMonth()+"-"+date.getDate(); | |
emit(date_format,{event_ids: [this.event_id], count: 1}); | |
}, | |
function(key,values){ | |
var res = {event_ids: [], count: 0} | |
var uniques = {}; | |
values.forEach(function(value) { | |
value.event_ids.forEach(function(event_id) { | |
uniques[event_id] = 1 | |
}); | |
}) | |
res.event_ids = Object.keys(uniques); | |
res.count = res.event_ids.length; | |
return res; | |
}, | |
{ | |
query: {event: 'created', type: 'stop', event_ids: {$ne: "unspecified"}}, | |
out: 'agg_session_count' | |
}, | |
function(err,res){ | |
if(err){ | |
console.log(err); | |
} else { | |
db.agg_session_count.count(function(err,val){ | |
changes = val; | |
console.log("OK: "+val+" objects"); | |
}); | |
} | |
} | |
); | |
} |
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