Table of Contents
Here are some exceptions I bumped into on upgrading from Cells 3 gem to Cells 4. ここにある対処法は、 それぞれの Cell クラス に対して行ってもいいですが、 it is easier to create the parent class, ApplicationCell.
対処した最終結果は Rails: Cells 3 から Cells 4 へのアップグレード に記載しています。
Exception: undefined method helper_method
The following error was raised in lib/devise/controllers/helpers.rb. The version of device gem I used at that time was 3.5.2.
undefined method `helper_method’ for XyzCell:Class
Add the following code to Cell class.
|
1 2 |
def self.helper_method(*) end |
It is empty method but there’s no problem. With Cells 3, we have to call self.helper_method but with Cells 4 we don’t have to do that and its method was removed.
Reference: apotonick/cells Issue Not working with react-rails
Exception in dom_class
The following exception may occur.
undefined method `dom_class’ for #<XyzCell:0x007ff36d4fecb0>
Add the following code to Cell class.
|
1 2 3 4 5 6 7 |
def dom_class(record, prefix = nil) ActionView::RecordIdentifier.dom_class(record, prefix) end def dom_id(record, prefix = nil) ActionView::RecordIdentifier.dom_id(record, prefix) end |
Reference: apotonick/cells Troubleshooting
Exception concerns number_with_delimiter is raised
Add include ActionView::Helpers::NumberHelper to Cell class.
Exception because of select tag can’t be used
The following message will be shown.
private method `select’ called for #<XyzCell:0x007ff48f4febe8>
Add include ActionView::Helpers::FormOptionsHelper to Cell class.
Reference: apotonick/cells Issue select form_helper doesn’t work in cells 4
