ruby on rails - Changing Mongoid class name mid-production -

is possible?

i have mongoid class named magazine, associations well, re-name publication. problem have bunch of users have made magazines, issues , articles.

original magazine model:

class magazine   # 1. include mongoid stuff   include mongoid::document   include mongoid::timestamps   include mongoid::slug    # 2. define fields   field :title, type: string   field :description, type: string   field :live, type: boolean, default: false   field :show_walkthrough, type: boolean, default: true    # 3. set attributes accesible   attr_accessible :title, :description, :live, :show_walkthrough, :cover_image_attributes, :logo_image_attributes    # 4. set slug   slug :title    # 5. set associations   belongs_to :user   has_many :issues, dependent: :delete, autosave: true   has_one :foreword, :as => :articleable, :class_name => 'article', dependent: :delete, autosave: true   embeds_one :cover_image, :as => :imageable, :class_name => 'image', cascade_callbacks: true, autobuild: true   embeds_one :logo_image, :as => :imageable, :class_name => 'image', cascade_callbacks: true, autobuild: true    # 6. accepting nested attributes   accepts_nested_attributes_for :cover_image, :allow_destroy => true   accepts_nested_attributes_for :logo_image, :allow_destroy => true    # 7. set validations   validates_presence_of :title, :description, :cover_image, :logo_image end 

i know can change class-name publication , db.magazines.renamecollection( "publications" ) on mongodb, associations doesn't follow along.

any suggestions?

i looks have association fields in issue , foreword models refer magazine. if happy enough change name of class , underlying collection renaming these association fields main problem. may have like:

class issue   belongs_to :magazine end 

you redefine association belongs_to :publication. assuming happy fix references issue#magazine in code remaining problem issues collection full of documents have magazine_id field instead of publication_field. have 2 options fix database mapping.

first option rename field in database. see mongodb : renaming column name in collection

the second option declare association maps old database field overriding 'foreign key' name:

belongs_to :publication, foreign_key: :magazine_id 

you have repeat foreword model , others reference magazine.