write data export script

seed/get-challenge-completion.js

@@ -0,0 +1,34 @@
+/* eslint-disable no-process-exit */
+require('dotenv').load();
+var secrets = require('../config/secrets'),
+    mongodb = require('mongodb'),
+    MongoClient = mongodb.MongoClient,
+    _ = require('lodash');
+
+MongoClient.connect(secrets.db, function(err, database) {
+  if (err) {
+    throw err;
+  }
+
+  database.collection('user').aggregate([
+    {$match: { 'completedChallenges': { $exists: true } } },
+    {$match: { 'completedChallenges': { $ne: '' } } },
+    {$match: { 'completedChallenges': { $ne: null } } },
+    {$group: { '_id': 1, 'completedChallenges': {$addToSet: '$completedChallenges' } } }
+  ], function(err, results) {
+    if (err) { throw err; }
+    var testout = results.map(function(camper) {
+      return _.flatten(camper.completedChallenges.map(function(challenges) {
+        return challenges.map(function(challenge) {
+          return { 
+            name: challenge.name,
+            completedDate: challenge.completedDate,
+            solution: challenge.solution
+          };
+        });
+      }), true); 
+    });
+    console.log(JSON.stringify(testout));
+    process.exit(0);
+  });
+});