Merge pull request #5449 from terakilobyte/data-exporting

Data exporting

get-challenge-completion.js

@@ -0,0 +1,46 @@
+/* eslint-disable no-process-exit */
+
+/**
+ * Data creation script for academic data pushes. Run this script with
+ * node seed/get-challenge-completion.js >> ~/output.json
+ * For large data sets supply the flag --max_old_space_size=2000000 to node.
+ * Run from the root FCC directory. Beware, this will generate a very large file
+ * if you have a large user collection such as the production mongo db.
+*/
+
+require('dotenv').load();
+var secrets = require('../config/secrets'),
+    mongodb = require('mongodb'),
+    MongoClient = mongodb.MongoClient;
+
+MongoClient.connect(secrets.db, function(err, database) {
+  if (err) {
+    throw err;
+  }
+  var stream = database.collection('user')
+        .find({'completedChallenges': { $ne: null },
+               'isLocked': { $ne: true } },
+              {'completedChallenges': true})
+        .stream();
+  console.log('[');
+  stream.on('data', function(results) {
+    if (!results.completedChallenges) {
+      // dud
+    } else {
+      var dataOut = [];
+      results.completedChallenges.forEach(function(challenge) {
+        dataOut.push({
+          name: challenge.name,
+          completedDate: challenge.completedDate,
+          solution: challenge.solution
+        });
+      });
+      if (dataOut.length) {
+          console.log(JSON.stringify(dataOut) + ',');
+      }
+    }
+  }).on('end', function() {
+    console.log(']');
+    process.exit(0);
+  });
+});