質問編集履歴

1

修正

2020/03/11 20:38

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@@ -71,3 +71,119 @@
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  ```
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+ ```uploader
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+ class StudentLicenseUploader < CarrierWave::Uploader::Base
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+ # Include RMagick or MiniMagick support:
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+ # include CarrierWave::RMagick
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+ include CarrierWave::MiniMagick
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+ # Choose what kind of storage to use for this uploader:
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+ if Rails.env.development?
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+ storage :file
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+ elsif Rails.env.test?
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+ storage :file
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+ else
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+ storage :fog
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+ end
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+ # storage :fog
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+ # Override the directory where uploaded files will be stored.
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+ # This is a sensible default for uploaders that are meant to be mounted:
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+ def store_dir
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+ "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
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+ end
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+ # Provide a default URL as a default if there hasn't been a file uploaded:
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+ # def default_url(*args)
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+ # # For Rails 3.1+ asset pipeline compatibility:
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+ # # ActionController::Base.helpers.asset_path("fallback/" + [version_name, "default.png"].compact.join('_'))
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+ #
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+ # "/images/fallback/" + [version_name, "default.png"].compact.join('_')
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+ # end
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+ process resize_to_fit: [300, 300]
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+ # Process files as they are uploaded:
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+ # process scale: [200, 300]
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+ #
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+ # def scale(width, height)
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+ # # do something
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+ # end
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+ process :convert => 'jpg'
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+ # Create different versions of your uploaded files:
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+ # version :thumb do
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+ # process resize_to_fit: [50, 50]
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+ # end
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+ version :thumb do
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+ process resize_to_fit: [300, 300]
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+ end
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+ # Add a white list of extensions which are allowed to be uploaded.
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+ # For images you might use something like this:
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+ # def extension_whitelist
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+ # %w(jpg jpeg gif png)
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+ # end
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+ # Override the filename of the uploaded files:
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+ # Avoid using model.id or version_name here, see uploader/store.rb for details.
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+ def filename
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+ super.chomp(File.extname(super))+'jpg' if original_filename.present?
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+ end
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+ end
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+ ```