Use Active Storage for Picture and File attachments #2968
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Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #2968 +/- ##
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- Coverage 96.58% 96.40% -0.19%
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Files 236 225 -11
Lines 6334 6252 -82
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- Hits 6118 6027 -91
- Misses 216 225 +9 ☔ View full report in Codecov by Sentry. |
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It would be great to support uploads on the Resources, to use it when Alchemy is being used as admin for other models. |
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This change is not related to allow attachments in Rails models. You can already do this with established Rails ways. There is nothing special about that in Alchemy. The model is yours. Just use it as normal Rails model. |
tvdeyen
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Sep 18, 2024
lib/alchemy_cms.rb
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| @@ -9,6 +9,8 @@ | |||
| require "active_model_serializers" | |||
| require "awesome_nested_set" | |||
| require "cancan" | |||
| require "dragonfly" | |||
| require "dragonfly_svg" | |||
tvdeyen
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lib/tasks/alchemy/upgrade.rake
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| Alchemy::Upgrader.display_todos | ||
| end | ||
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| namespace "7.3" do |
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Necessary for active storage image transforms
ActiveStorage uses the image_processing gem to process images. This uses a hash to describe the conversion instead of a string
Instead of using the Dragonfly Model validations we write our own. That way we can use another image attachment library more easily
The vips image_processing processor sharpens images by default. This disables this behavior.
Active storage already knows if a file is convertible
This avoids N+1 in the image library
Using activestorage methods to read the values. Ideally we would cache these values, but active storage asynchronously sets these values and provides no callback we could use.
Now that we use ActiveStorage we can remove our custom picture variant handling
This method is the only one left after the PictureVariant and PictureThumb removal.
Active storage has the mime type stored not the extension.
ruby-vips and mini_magick need to be told to ignore the page in order to resize animated gifs.
Before we where not telling active storage that we want a certain format explicitely. We need that for displaying animated PNGs properly.
Proxy downloads the file.
Only works in Rails 7.1
ActiveStorage expects an extension and not an mime type.
It is only configured by default in unreleased Rails 7.2
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What is this pull request for?
Use ActiveStorage instead of Dragonfly for picture and file attachments.
Important changes
vips. It works withmini_magickthoughTODO
Alchemy::Attachmentas wellmini_magickChecklist