19 lines
728 B
Ruby
19 lines
728 B
Ruby
module PostVersionsHelper
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def post_version_diff(post_version)
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diff = post_version.diff(post_version.previous)
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html = []
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diff[:added_tags].each do |tag|
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prefix = diff[:obsolete_added_tags].include?(tag) ? '+<ins class="obsolete">' : '<ins>+'
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html << prefix + link_to(tag, posts_path(:tags => tag)) + '</ins>'
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end
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diff[:removed_tags].each do |tag|
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prefix = diff[:obsolete_removed_tags].include?(tag) ? '-<del class="obsolete">' : '<del>-'
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html << prefix + link_to(tag, posts_path(:tags => tag)) + '</del>'
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end
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diff[:unchanged_tags].each do |tag|
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html << '<span>' + link_to(tag, posts_path(:tags => tag)) + '</span>'
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end
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return html.join(" ").html_safe
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end
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end
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