Update teacher surveys

Gives 2 course headcount too.

server/trial_requests/TrialRequest.coffee

@@ -10,6 +10,8 @@ TrialRequestSchema = new mongoose.Schema {}, {strict: false, minimize: false, re
 
 TrialRequestSchema.pre 'save', (next) ->
   return next() unless @get('status') is 'approved'
+
+  # Add subscription
   Prepaid.generateNewCode (code) =>
     unless code
       log.error "Trial request pre save prepaid gen new code failure"
@@ -24,8 +26,20 @@ TrialRequestSchema.pre 'save', (next) ->
     prepaid.save (err) =>
       if err
         log.error "Trial request prepaid creation error: #{err}"
+        return next()
       @set('prepaidCode', code)
-      next()
+
+      # Add 2 course headcount
+      prepaid = new Prepaid
+        creator: @get('applicant')
+        type: 'course'
+        maxRedeemers: 2
+        properties:
+          trialRequestID: @get('_id')
+      prepaid.save (err) =>
+        if err
+          log.error "Trial request prepaid creation error: #{err}"
+        next()
 
 TrialRequestSchema.post 'save', (doc) ->
   if doc.get('status') is 'submitted'

test/server/functional/trial_request.spec.coffee

@@ -110,7 +110,7 @@ describe 'Trial Requests', ->
       createTrialRequest user, 'subscription', properties, (trialRequest) ->
         loginNewUser (admin) ->
           admin.set('permissions', ['admin'])
-          admin.save (err, user) ->
+          admin.save (err, admin) ->
             requestBody = trialRequest.toObject()
             requestBody.status = 'approved'
             request.put {uri: URL, json: requestBody }, (err, res, body) ->
@@ -128,7 +128,13 @@ describe 'Trial Requests', ->
                 expect(new Date(doc.get('reviewDate'))).toBeLessThan(new Date())
                 expect(doc.get('reviewer')).toEqual(admin._id)
                 expect(doc.get('prepaidCode')).toBeDefined()
-                done()
+                Prepaid.findOne {'properties.trialRequestID': doc.get('_id')}, (err, doc) ->
+                  expect(err).toBeNull()
+                  return done(err) if err
+                  expect(doc.get('type')).toEqual('course')
+                  expect(doc.get('creator')).toEqual(user.get('_id'))
+                  expect(doc.get('maxRedeemers')).toEqual(2)
+                  done()
 
   it 'Deny trial request', (done) ->
     loginNewUser (user) ->