Variant processor that you are using, but both support the following parameters: Parameterĭownsizes the image to fit within the specified dimensions while retaining the original aspect ratio. The parameters available are defined by the image_processing gem and depend on the Representable? returns false you may want to link to Some file formatsĬan't be previewed by Active Storage out of the box (e.g. Before calling representation, check if theĪttachment can be represented by calling representable?.
Representation on an attachment to display an image variant, or a 8 Displaying Images, Videos, and PDFsĪctive Storage supports representing a variety of files. Audio analysis provides duration and bit_rate attributes. Video analysis provides these, as well as duration, angle, display_aspect_ratio, and video and audio booleans to indicate the presence of those channels. Image analysis provides width and height attributes. You can check whether a blob has been analyzed by calling analyzed? on it. Analyzed files will store additional information in the metadata hash, including analyzed: true. 7 Analyzing FilesĪctive Storage analyzes files once they've been uploaded by queuing a job in Active Job. It's important to know that the file is not yet available in the after_create callback but in the after_create_commit only. open do | file | system '/path/to/virus/scanner', file. Have an avatar, define the User model as follows:
Each record can have one file attached to it.įor example, suppose your application has a User model. The has_one_attached macro sets up a one-to-one mapping between records andįiles. 3 Attaching Files to Records 3.1 has_one_attached When converting an existing application to use public: true, make sure to update every individual file in the bucket to be publicly-readable before switching over. Amazon S3 additionally requires that you have the s3:PutObjectAcl permission. See docs on how to enable public read permissions for Amazon S3, Google Cloud Storage, and Microsoft Azure storage services. Make sure your buckets are properly configured for public access. Gcs : &gcs service : GCS project : " " private_gcs : bucket : " " public_gcs : bucket : " " public : true Copy
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