module OpenGraphHelper
- def opengraph_tags(title = nil)
+ require "addressable/uri"
+
+ def opengraph_tags(title = nil, og_image = nil)
tags = {
"og:site_name" => t("layouts.project_name.title"),
- "og:title" => [t("layouts.project_name.title"), title].compact.join(" | "),
+ "og:title" => title || t("layouts.project_name.title"),
"og:type" => "website",
- "og:image" => image_path("osm_logo_256.png", :host => SERVER_URL, :protocol => "http"),
- "og:image:secure_url" => image_path("osm_logo_256.png", :host => SERVER_URL, :protocol => "https")
+ "og:image" => og_image_url(og_image),
+ "og:url" => url_for(:only_path => false),
+ "og:description" => t("layouts.intro_text")
}
- tags.map do |property, content|
- tag(:meta, :property => property, :content => content)
- end.join("").html_safe
+ safe_join(tags.map do |property, content|
+ tag.meta(:property => property, :content => content)
+ end, "\n")
+ end
+
+ private
+
+ def og_image_url(og_image)
+ begin
+ return Addressable::URI.join(root_url, og_image).normalize if og_image
+ rescue Addressable::URI::InvalidURIError
+ # return default image
+ end
+ image_url("osm_logo_256.png")
end
end