I can get url in model with this code (Active Storage)
Rails.application.routes.url_helpers.rails_blob_path(picture_of_car, only_path: true)
But I need get url of resized varian
picture_of_car.variant(resize: "300x300").processed
For example this code
Rails.application.routes.url_helpers.rails_blob_path(picture_of_car.variant(resize: "300x300").processed, only_path: true)
throw
NoMethodError (undefined method `signed_id' for #< ActiveStorage::Variant:0x0000000004ea6498 >):
Solution:
Rails.application.routes.url_helpers.rails_representation_url(picture_of_car.variant(resize: "300x300").processed, only_path: true)
Answer provided here.
for a variant you need to use rails_representation_url(variant) - this will build a url similar to the one that rails_blob_url builds but specifically for that variant.
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