e23ee170f5
- The types are: -- Previous: The default and the previously used type -- Subsequent: Compares against the next version -- Current: Compares against the current version - Allow switching between comparison types in index and diff views -- Have links vary depending upon current comparison type
47 lines
1.5 KiB
Ruby
47 lines
1.5 KiB
Ruby
module PostVersionsHelper
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def post_version_diff(post_version, type)
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other = post_version.send(type)
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this_tags = post_version.tag_array
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this_tags << "rating:#{post_version.rating}" if post_version.rating.present?
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this_tags << "parent:#{post_version.parent_id}" if post_version.parent_id.present?
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this_tags << "source:#{post_version.source}" if post_version.source.present?
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other_tags = other.present? ? other.tag_array : []
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if other.present?
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other_tags << "rating:#{other.rating}" if other.rating.present?
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other_tags << "parent:#{other.parent_id}" if other.parent_id.present?
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other_tags << "source:#{other.source}" if other.source.present?
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elsif type == "subsequent"
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other_tags = this_tags
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end
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if type == "previous"
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added_tags = this_tags - other_tags
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removed_tags = other_tags - this_tags
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else
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added_tags = other_tags - this_tags
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removed_tags = this_tags - other_tags
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end
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unchanged_tags = this_tags & other_tags
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html = '<span class="diff-list">'
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added_tags.each do |tag|
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html << '<ins>+' + link_to(wordbreakify(tag), posts_path(:tags => tag)) + '</ins>'
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html << " "
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end
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removed_tags.each do |tag|
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html << '<del>-' + link_to(wordbreakify(tag), posts_path(:tags => tag)) + '</del>'
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html << " "
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end
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unchanged_tags.each do |tag|
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html << '<span>' + link_to(wordbreakify(tag), posts_path(:tags => tag)) + '</span>'
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html << " "
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end
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html << "</span>"
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html.html_safe
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end
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end
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