Supporting Dynamic Fields Form for Mongoid
Mongoid currently supports the dynamic fields configuration option, which provided in the mongoid.yml,
allow_dynamic_fields: true
When attributes are not defined as fields but added to an object, they will get fields added for them dynamically and will get persisted. If set to false an error will get raised when attempting to set a value that has no field defined.
But there is a problem with a dynamic fields form, you will get raised when attempting to add a undefined atribute in your form, so question comes, how to enable form to support dynamic fields that could be added to an object? The only thing you should do is that override the method_missing method in mongoid module.
module Mongoid
module Attributes
alias_method :old_method_missing, :method_missing
def method_missing(name, *args)
old_method_missing(name, *args)
rescue
nil
end
end
end
You can directly put this file in config/initializer directory, or lib and require this file, whatever you like.