Make an ability to re-use code for url helpers (`model.picture.url(:version)``) we already have in views. Possible options:
-
replace mount_uploader with some other method, which replicate current carrier_wave functionality for url helpers Pros: get rid of carrier_wave Cons: not clear how to test the whole application for possible errors after migration
-
create carrier_wave adapter like we have for cloudinary — it's a preferred option for now Pros: carrier_wave is good option for storing information about images/files versions, it's clear how to test — need to fulfill carrier_wave api using existing cloudinary adapter. Cons: additional dependency (carrier_wave), it requires us to create an extra product, probably not so large, — uploadcare carrier_wave adapter.
- Find all places where we send a data file or a string to controllers, change it to uploadcare uploader
- Mock all the conversion methods in carrier_wave, as well as all the uploading to the server.
- Check every for with upload, don't lose any functionality (resizing, previewing, removing, editing).
Duplicate every cloudinary attribute in every model with <attribute_name>_cloudinary, migrate cloudinary file to uploadcare.
Nothing was destructed, we have a general ability to use uploadcare and re-use current code (except uploaders).
- Check every special case (like if we use url somehow else in code except carrier_wave url_helpers).
- Check the original files requirements
- Make tests for each special case
Output of phase 2 is ability to migrate the application by request.