helper.rb in dynamic_image-2.0.14

- old
+ new

@@ -29,11 +29,11 @@
     #   # => <img alt="My file" height="200" src="..." width="320" />
     #   dynamic_image_tag(image, size: "100x100", alt="Avatar")
     #   # => <img alt="Avatar" height="62" src="..." width="100" />
     def dynamic_image_tag(record_or_array, options = {})
       record = extract_dynamic_image_record(record_or_array)
-      options = { alt: image_alt(record.filename) }.merge(options)
+      options = { alt: filename_to_alt(record.filename) }.merge(options)
 
       size = fit_size!(record_or_array, options)
       url_options = options.extract!(*allowed_dynamic_image_url_options)
       html_options = { size: size }.merge(options)
 
@@ -157,9 +157,16 @@
       when Array
         record_or_array.last
       else
         record_or_array
       end
+    end
+
+    def filename_to_alt(str)
+      File.basename(str, ".*".freeze)
+          .sub(/-[[:xdigit:]]{32,64}\z/, "".freeze)
+          .tr("-_".freeze, " ".freeze)
+          .capitalize
     end
 
     def fit_size!(record_or_array, options)
       record = extract_dynamic_image_record(record_or_array)
       action = options[:action].try(:to_s)