discourse/db/migrate/20121204183855_fix_link_pos...

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class FixLinkPostId < ActiveRecord::Migration
def up
to_remove = []
TopicLink.where('internal = TRUE AND link_post_id IS NULL').each do |tl|
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begin
parsed = URI.parse(tl.url)
route = Rails.application.routes.recognize_path(parsed.path)
if route[:topic_id].present?
post = Post.where(topic_id: route[:topic_id], post_number: route[:post_number] || 1).first
tl.update_column(:link_post_id, post.id) if post.present?
end
rescue ActionController::RoutingError
to_remove << tl.id
end
end
TopicLink.delete_all ["id in (?)", to_remove]
end
def down
end
end