Module: VenusMediaLibrary::ImagesHelper

Included in:
ImagesController, PickersController
Defined in:
app/helpers/venus_media_library/images_helper.rb

Overview

Shared image URL/payload logic. Included in the views (automatically) and in ImagesController so the HTML grid and the JSON response stay in sync.

Instance Method Summary collapse

Instance Method Details

#ml_blob_url(blob) ⇒ Object

Permanent URL to the original file. Active Storage route helpers live on the host app, so they are reached through the main_app proxy. With url_type = :proxy the URL streams through Rails (works for private buckets and external crawlers); the default :redirect 302s to the storage URL.



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# File 'app/helpers/venus_media_library/images_helper.rb', line 23

def ml_blob_url(blob)
  if VenusMediaLibrary.configuration.url_type == :proxy
    main_app.rails_storage_proxy_url(blob)
  else
    main_app.rails_blob_url(blob)
  end
rescue StandardError
  main_app.rails_blob_path(blob)
end

#ml_image_payload(blob) ⇒ Object

A serializable description of a blob used by the JSON API and the tiles.



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# File 'app/helpers/venus_media_library/images_helper.rb', line 6

def ml_image_payload(blob)
  {
    id:           blob.id,
    signed_id:    blob.signed_id,
    filename:     blob.filename.to_s,
    content_type: blob.content_type,
    byte_size:    blob.byte_size,
    created_at:   blob.created_at,
    url:          ml_blob_url(blob),
    thumb_url:    ml_thumb_url(blob)
  }
end

#ml_thumb_url(blob) ⇒ Object

Small variant used for the grid thumbnail. Falls back to the original URL when the blob can't be variated (e.g. SVG).



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# File 'app/helpers/venus_media_library/images_helper.rb', line 35

def ml_thumb_url(blob)
  if blob.variable?
    w, h = VenusMediaLibrary.configuration.thumbnail_size
    main_app.rails_representation_url(blob.variant(resize_to_limit: [ w, h ]))
  else
    ml_blob_url(blob)
  end
rescue StandardError
  ml_blob_url(blob)
end