Name conflicts migration script.

scripts/mongodb/migrations/2014-07-09-name-conflicts.js

@@ -0,0 +1,52 @@
+load('bower_components/lodash/dist/lodash.js');
+load('bower_components/underscore.string/dist/underscore.string.min.js');
+
+var slugs = {};
+var num = 0;
+
+var unconflictName;
+
+unconflictName = function(name) {
+  var otherUser, suffix;
+  otherUser = db.users.findOne({
+    slug: _.string.slugify(name)
+  });
+  if (!otherUser) {
+    return name;
+  }
+  suffix = _.random(0, 9) + '';
+  return unconflictName(name + suffix);
+};
+
+var params = {
+  name:1,
+  emails:1,
+  email:1,
+  slug:1,
+  dateCreated:1
+};
+
+db.users.find({anonymous:false}, params).sort({_id:1}).forEach(function (user) {
+  num += 1;
+  var slug = _.string.slugify(user.name);
+  if(!slug) return;
+  var update = {};
+  if(slugs[slug]) {
+    originalName = slugs[slug];
+    conflictingName = user.name;
+    availableName = unconflictName(conflictingName);
+    conflictingSlug = slug;
+    slug = _.string.slugify(availableName);
+    update.name = availableName;
+    update.nameLower = availableName.toLowerCase();
+    if (!(user.emails && user.emails.anyNotes === false))
+      db.changedEmails.insert({email:user.email, user:user._id, name:user.name});
+    print(_.str.sprintf('\n\n\tConflict! Username "%s" conflicts with "%s" (both sluggify to "%s"). Changing to "%s"\n\n\n',
+      conflictingName, originalName, conflictingSlug, availableName));
+  }
+  update.slug = slug;
+  slugs[slug] = user.name;
+  if(user.slug) return;
+  print(_.str.sprintf('Setting user %s (%s) to slug %s with update %s', user.name, user.dateCreated, slug, JSON.stringify({$set:update})));
+  db.users.update({_id:user._id}, {$set:update});
+});