added helper for images with thumbnails and captions

1 files changed, 27 insertions, 0 deletions

diff --git a/helpers/extra_image_helpers.rb b/helpers/extra_image_helpers.rb
new file mode 100644
index 0000000..9c92d3c
--- /dev/null
+++ b/helpers/extra_image_helpers.rb
@@ -0,0 +1,27 @@
+module ExtraImageHelpers
+
+  # creates a div with image link, thumbnail and caption
+  # TODO make this work for non-image assets (pdf on 'verein' page)
+  def image_with_thumb(name, options={})
+    caption = options.delete(:caption)
+    full_path  = "/img/#{name}"
+
+    thumb_name = options.delete(:thumbnail) || default_thumbnail_for(name)
+    thumb_path = "/img/#{thumb_name}"
+
+    # oh boy, padrino-helpers has problems with nested content_for... FIXME
+    thumb_tag   = image_tag(thumb_path, options)
+    image_link  = content_tag(:a, thumb_tag, href: full_path)
+    caption_tag = content_tag(:p, caption)
+
+    content_tag :div, [image_link, caption_tag].join("\n")
+  end
+
+  private
+
+  def default_thumbnail_for(image_name_with_ext)
+    name, ext = image_name_with_ext.split(".")
+    "#{name}_klein.#{ext}"
+  end
+
+end