collection-helpers problem ?

error.log

 TypeError: Object [object Object] has no method 'findOrCreateBy'

projects.coffee

@Projects = new Mongo.Collection("projects")

Schemas = {}
Schemas.Project = new SimpleSchema(
  _id:
    type: String
    optional: true

  projectName:
    type: String

  projectType:
    type: String
)

@Projects.helpers
  findOrCreateBy: (project) ->
    @Projects.upsert
        projectName: project.projectName
      ,
        $set:
          projectType: projectType
      , (error, result) ->
        console.log error if error?
        return

@Projects.attachSchema(Schemas.Project)

server.coffee

Meteor.startup ->
  project = Json.someJSON
  Projects.findOrCreateBy(project)