Is there any way to overwrite the behavior of def crawlable_meta_data
with a simple plugin?
In particular, we would like to change:
elsif opts[:image].present?
result << tag(:meta, name: 'twitter:card', content: "summary")
result << tag(:meta, name: "twitter:image", content: opts[:image])
to
elsif opts[:image].present?
result << tag(:meta, name: 'twitter:card', content: "summary_large_image")
result << tag(:meta, name: "twitter:image", content: opts[:image])
as we’re pretty depending on Twitter and big cards for engagement.
I’m quite new to Ruby, so any nudge into the right direction would be appreciated.
Update: Here is the plugin.rb for those who want to patch core because of the small images on Twitter:
after_initialize do
reloadable_patch do |plugin|
ApplicationHelper.module_eval do
def crawlable_meta_data(opts = nil)
opts ||= {}
opts[:url] ||= "#{Discourse.base_url_no_prefix}#{request.fullpath}"
if opts[:image].blank?
twitter_summary_large_image_url = SiteSetting.site_twitter_summary_large_image_url
if twitter_summary_large_image_url.present?
opts[:twitter_summary_large_image] = twitter_summary_large_image_url
end
opts[:image] = SiteSetting.site_opengraph_image_url
end
# With and height available?
# Use the correct scheme for opengraph/twitter image
opts[:image] = get_absolute_image_url(opts[:image]) if opts[:image].present?
opts[:twitter_summary_large_image] =
get_absolute_image_url(opts[:twitter_summary_large_image]) if opts[:twitter_summary_large_image].present?
# Add opengraph & twitter tags
result = []
result << tag(:meta, property: 'og:site_name', content: SiteSetting.title)
if opts[:twitter_summary_large_image].present?
result << tag(:meta, name: 'twitter:card', content: "summary_large_image")
result << tag(:meta, name: "twitter:image", content: opts[:twitter_summary_large_image])
elsif opts[:image].present?
result << tag(:meta, name: 'twitter:card', content: "summary_large_image")
result << tag(:meta, name: "twitter:image", content: opts[:image])
else
result << tag(:meta, name: 'twitter:card', content: "summary")
end
result << tag(:meta, property: "og:image", content: opts[:image]) if opts[:image].present?
[:url, :title, :description].each do |property|
if opts[property].present?
content = (property == :url ? opts[property] : gsub_emoji_to_unicode(opts[property]))
result << tag(:meta, { property: "og:#{property}", content: content }, nil, true)
result << tag(:meta, { name: "twitter:#{property}", content: content }, nil, true)
end
end
if opts[:read_time] && opts[:read_time] > 0 && opts[:like_count] && opts[:like_count] > 0
result << tag(:meta, name: 'twitter:label1', value: I18n.t("reading_time"))
result << tag(:meta, name: 'twitter:data1', value: "#{opts[:read_time]} mins 🕑")
result << tag(:meta, name: 'twitter:label2', value: I18n.t("likes"))
result << tag(:meta, name: 'twitter:data2', value: "#{opts[:like_count]} ❤")
end
if opts[:published_time]
result << tag(:meta, property: 'article:published_time', content: opts[:published_time])
end
if opts[:ignore_canonical]
result << tag(:meta, property: 'og:ignore_canonical', content: true)
end
result.join("\n")
end
end
end
end
But it would be better if there would be an option for this going forward and if core would assess min Twitter images sizes to either do summary_large_image or summary (for very small images) if a admin opts for a new setting: “enable large Twitter summary images”.