96 lines
2.1 KiB
Ruby
96 lines
2.1 KiB
Ruby
# -*- encoding : utf-8 -*-
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class ImageUploader < CarrierWave::Uploader::Base
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# Include RMagick or ImageScience support:
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include CarrierWave::RMagick
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# include CarrierWave::ImageScience
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# Choose what kind of storage to use for this uploader:
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storage :file
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# storage :s3
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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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"public_medias/#{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
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# "/images/fallback/" + [version_name, "default.png"].compact.join('_')
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# end
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# Process files as they are uploaded:
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process :resize_to_limit => [1200, 1200]
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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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# Create different versions of your uploaded files:
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version :large do
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process :resize_to_limit => [1200, 1200]
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version :medium do
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process :resize_to_limit => [800, 700]
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version :small do
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process :resize_to_limit => [300, 400]
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version :thumb do
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process :resize_to_limit => [250, 250]
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end
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end
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end
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end
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version :square do
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process :resize_to_fill => [250, 250]
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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_white_list
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%w(jpg jpeg gif png bmp)
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end
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# Override the filename of the uploaded files:
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def filename
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"#{secure_token}.#{file.extension}" if original_filename.present?
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end
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before :cache, :save_original_filename
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def save_original_filename(file)
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if !model.origin_name?
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puts file.original_filename
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model.origin_name = file.original_filename if file.original_filename.present?
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end
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end
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protected
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def secure_token
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var = :"@#{mounted_as}_secure_token"
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model.instance_variable_get(var) or model.instance_variable_set(var, SecureRandom.hex(4))
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end
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end
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