Classroom invite codes are now real words like BigFrogFarm

app/schemas/models/classroom.schema.coffee

@@ -8,6 +8,7 @@ _.extend ClassroomSchema.properties,
   ownerID: c.objectId()
   description: {type: 'string'}
   code: c.shortString(title: "Unique code to redeem")
+  codeCamel: c.shortString(title: "UpperCamelCase version of code for display purposes")
   aceConfig:
     language: {type: 'string', 'enum': ['python', 'javascript']}
 

app/templates/courses/invite-to-classroom-modal.jade

@@ -10,7 +10,7 @@ block modal-body-content
   p(data-i18n="courses.invite_link_p_1")
   .alert.alert-info
     
-    strong= document.location.origin + "/courses/students?_cc=" + view.classroom.get('code')
+    strong= document.location.origin + "/courses/students?_cc=" + (view.classroom.get('codeCamel') || view.classroom.get('code'))
   p(data-i18n="courses.invite_link_p_2")
   .form
     .form-group

app/views/courses/StudentCoursesView.coffee

@@ -28,7 +28,7 @@ module.exports = class StudentCoursesView extends RootView
     @supermodel.loadCollection(@classrooms, 'classrooms', { data: {memberID: me.id} })
     @courses = new CocoCollection([], { url: "/db/course", model: Course})
     @supermodel.loadCollection(@courses, 'courses')
-      
+
   onLoaded: ->
     if (@classCode = utils.getQueryVariable('_cc', false)) and not me.isAnonymous()
       @joinClass()
@@ -63,17 +63,17 @@ module.exports = class StudentCoursesView extends RootView
   onJoinClassroomSuccess: (data, textStatus, jqxhr) ->
     classroom = new Classroom(data)
     application.tracker?.trackEvent 'Joined classroom', {
-      classroomID: classroom.id, 
+      classroomID: classroom.id,
       classroomName: classroom.get('name')
       ownerID: classroom.get('ownerID')
     }
     @classrooms.add(classroom)
     @render()
-    
+
     classroomCourseInstances = new CocoCollection([], { url: "/db/course_instance", model: CourseInstance })
     classroomCourseInstances.fetch({ data: {classroomID: classroom.id} })
     @listenToOnce classroomCourseInstances, 'sync', ->
-      
+
       # join any course instances in the classroom which are free to join
       jqxhrs = []
       for courseInstance in classroomCourseInstances.models

server/classrooms/Classroom.coffee

@@ -14,12 +14,16 @@ ClassroomSchema.statics.editableProperties = [
   'aceConfig'
 ]
 
+# 250 words; will want to use 4 code words once we get past 10M classrooms.
+words = 'angry apple arm army art baby back bad bag ball bath bean bear bed bell best big bird bite blue boat book box boy bread burn bus cake car cat chair city class clock cloud coat coin cold cook cool corn crash cup dark day deep desk dish dog door down draw dream drink drop dry duck dust east eat egg enemy eye face false farm fast fear fight find fire flag floor fly food foot fork fox free fruit full fun funny game gate gift glass goat gold good green hair half hand happy heart heavy help hide hill home horse house ice idea iron jelly job jump key king lamp large last late lazy leaf left leg life light lion lock long luck map mean milk mix moon more most mouth music name neck net new next nice night north nose old only open page paint pan paper park party path pig pin pink place plane plant plate play point pool power pull push queen rain ready red rest rice ride right ring road rock room run sad safe salt same sand sell shake shape share sharp sheep shelf ship shirt shoe shop short show sick side silly sing sink sit size sky sleep slow small snow sock soft soup south space speed spell spoon star start step stone stop sweet swim sword table team thick thin thing think today tooth top town tree true turn type under want warm watch water west wide win word yes zoo'.split(' ')
+
 ClassroomSchema.statics.generateNewCode = (done) ->
   tryCode = ->
-    code = _.sample("abcdefghijklmnopqrstuvwxyz0123456789", 8).join('')
+    codeCamel = _.map(_.sample(words, 3), (s) -> s[0].toUpperCase() + s.slice(1)).join('')
+    code = codeCamel.toLowerCase()
     Classroom.findOne code: code, (err, classroom) ->
       return done() if err
-      return done(code) unless classroom
+      return done(code, codeCamel) unless classroom
       tryCode()
   tryCode()
 
@@ -27,14 +31,15 @@ ClassroomSchema.statics.generateNewCode = (done) ->
 
 ClassroomSchema.pre('save', (next) ->
   return next() if @get('code')
-  Classroom.generateNewCode (code) =>
+  Classroom.generateNewCode (code, codeCamel) =>
     @set 'code', code
+    @set 'codeCamel', codeCamel
     next()
 )
 
 ClassroomSchema.methods.isOwner = (userID) ->
   return userID.equals(@get('ownerID'))
-  
+
 ClassroomSchema.methods.isMember = (userID) ->
   return _.any @get('members') or [], (memberID) -> userID.equals(memberID)
 

server/classrooms/classroom_handler.coffee

@@ -51,7 +51,8 @@ ClassroomHandler = class ClassroomHandler extends Handler
 
   joinClassroomAPI: (req, res, classroomID) ->
     return @sendBadInputError(res, 'Need an object with a code') unless req.body?.code
-    Classroom.findOne {code: req.body.code}, (err, classroom) =>
+    code = req.body.code.toLowerCase()
+    Classroom.findOne {code: code}, (err, classroom) =>
       return @sendDatabaseError(res, err) if err
       return @sendNotFoundError(res) if not classroom
       members = _.clone(classroom.get('members'))
@@ -63,16 +64,16 @@ ClassroomHandler = class ClassroomHandler extends Handler
         members.push req.user.get('_id')
         classroom.set('members', members)
         return @sendSuccess(res, @formatEntity(req, classroom))
-      
+
   formatEntity: (req, doc) ->
     if req.user?.isAdmin() or req.user?.get('_id').equals(doc.get('ownerID'))
       return doc.toObject()
-    return _.omit(doc.toObject(), 'code')
+    return _.omit(doc.toObject(), 'code', 'codeCamel')
 
   inviteStudents: (req, res, classroomID) ->
     if not req.body.emails
       return @sendBadInputError(res, 'Emails not included')
-      
+
     Classroom.findById classroomID, (err, classroom) =>
       return @sendDatabaseError(res, err) if err
       return @sendNotFoundError(res) unless classroom
@@ -86,10 +87,10 @@ ClassroomHandler = class ClassroomHandler extends Handler
           email_data:
             class_name: classroom.get('name')
             # TODO: join_link
-            join_link: "https://codecombat.com/courses/students?_cc=" + classroom.get('code')
+            join_link: "https://codecombat.com/courses/students?_cc=" + (classroom.get('codeCamel') or classroom.get('code'))
         sendwithus.api.send context, _.noop
       return @sendSuccess(res, {})
-      
+
   get: (req, res) ->
     if ownerID = req.query.ownerID
       return @sendForbiddenError(res) unless req.user and (req.user.isAdmin() or ownerID is req.user.id)