diff options
Diffstat (limited to 'actionview/lib/action_view')
| -rw-r--r-- | actionview/lib/action_view/helpers/asset_tag_helper.rb | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/actionview/lib/action_view/helpers/asset_tag_helper.rb b/actionview/lib/action_view/helpers/asset_tag_helper.rb index 66e31978c6..82b0fcbf2e 100644 --- a/actionview/lib/action_view/helpers/asset_tag_helper.rb +++ b/actionview/lib/action_view/helpers/asset_tag_helper.rb @@ -200,7 +200,7 @@ module ActionView end # Returns an HTML image tag for the +source+. The +source+ can be a full - # path or a file. + # path, a file or an Active Storage attachment. # # ==== Options # @@ -217,6 +217,8 @@ module ActionView # # ==== Examples # + # Assets (images that are part of your app): + # # image_tag("icon") # # => <img alt="Icon" src="/assets/icon" /> # image_tag("icon.png") @@ -235,12 +237,21 @@ module ActionView # # => <img src="/assets/icon.png" srcset="/assets/icon_2x.png 2x, /assets/icon_4x.png 4x"> # image_tag("pic.jpg", srcset: [["pic_1024.jpg", "1024w"], ["pic_1980.jpg", "1980w"]], sizes: "100vw") # # => <img src="/assets/pic.jpg" srcset="/assets/pic_1024.jpg 1024w, /assets/pic_1980.jpg 1980w" sizes="100vw"> + # + # Active Storage (images that are uploaded by the users of your app): + # + # image_tag(user.avatar) + # # => <img src="/rails/active_storage/blobs/.../tiger.jpg" alt="Tiger" /> + # image_tag(user.avatar.variant(resize: "100x100")) + # # => <img src="/rails/active_storage/variants/.../tiger.jpg" alt="Tiger" /> + # image_tag(user.avatar.variant(resize: "100x100"), size: '100') + # # => <img width="100" height="100" src="/rails/active_storage/variants/.../tiger.jpg" alt="Tiger" /> def image_tag(source, options = {}) options = options.symbolize_keys check_for_image_tag_errors(options) skip_pipeline = options.delete(:skip_pipeline) - src = options[:src] = path_to_image(source, skip_pipeline: skip_pipeline) + src = options[:src] = resolve_image_source(source, skip_pipeline) unless src.start_with?("cid:") || src.start_with?("data:") || src.blank? options[:alt] = options.fetch(:alt) { image_alt(src) } @@ -364,6 +375,16 @@ module ActionView end end + def resolve_image_source(source, skip_pipeline) + if source.is_a?(Symbol) || source.is_a?(String) + path_to_image(source, skip_pipeline: skip_pipeline) + else + polymorphic_url(source) + end + rescue NoMethodError => e + raise ArgumentError, "Can't resolve image into URL: #{e}" + end + def extract_dimensions(size) size = size.to_s if /\A\d+x\d+\z/.match?(size) |