76 lines
2.0 KiB
Ruby
76 lines
2.0 KiB
Ruby
# encoding: utf-8
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class ImageUploader < CarrierWave::Uploader::Base
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require 'mime/types'
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include Sprockets::Helpers::RailsHelper
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process :set_content_type
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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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include CarrierWave::MiniMagick
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def set_content_type(*args)
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content_type = file.content_type == ('binary/octet-stream' || 'application/octet-stream') || file.content_type.blank? ? MIME::Types.type_for(original_filename).first.to_s : file.content_type
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self.file.instance_variable_set(:@content_type, content_type)
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end
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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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"#{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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def default_url
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[version_name, (Site.first.default_image.file.url rescue "sign-in-logo.png")].compact.join('_')
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end
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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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# Create different versions of your uploaded files:
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# version :thumb do
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# process :scale => [50, 50]
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# end
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version :thumb do
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process :resize_to_limit => [200, 200]
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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)
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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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# "something.jpg" if original_filename
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# end
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def manipulate!
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cache_stored_file! if !cached?
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image = ::MiniMagick::Image.open(current_path)
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image = yield(image)
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image.write(current_path)
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::MiniMagick::Image.open(current_path)
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rescue
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nil
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end
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end
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