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Add alternate comparison types to versions

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- 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
This commit is contained in:
BrokenEagle
2020-03-17 07:23:42 +00:00
parent a95e57d938
commit e23ee170f5
41 changed files with 488 additions and 221 deletions
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55
app/helpers/post_versions_helper.rb
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@@ -1,45 +1,38 @@
module PostVersionsHelper
def post_version_diff(post_version)
previous = post_version.previous
post = post_version.post
def post_version_diff(post_version, type)
other = post_version.send(type)
if post.nil?
latest_tags = post_version.tag_array
this_tags = post_version.tag_array
this_tags << "rating:#{post_version.rating}" if post_version.rating.present?
this_tags << "parent:#{post_version.parent_id}" if post_version.parent_id.present?
this_tags << "source:#{post_version.source}" if post_version.source.present?
other_tags = other.present? ? other.tag_array : []
if other.present?
other_tags << "rating:#{other.rating}" if other.rating.present?
other_tags << "parent:#{other.parent_id}" if other.parent_id.present?
other_tags << "source:#{other.source}" if other.source.present?
elsif type == "subsequent"
other_tags = this_tags
end
if type == "previous"
added_tags = this_tags - other_tags
removed_tags = other_tags - this_tags
else
latest_tags = post.tag_array
latest_tags << "rating:#{post.rating}" if post.rating.present?
latest_tags << "parent:#{post.parent_id}" if post.parent_id.present?
latest_tags << "source:#{post.source}" if post.source.present?
added_tags = other_tags - this_tags
removed_tags = this_tags - other_tags
end
new_tags = post_version.tag_array
new_tags << "rating:#{post_version.rating}" if post_version.rating.present?
new_tags << "parent:#{post_version.parent_id}" if post_version.parent_id.present?
new_tags << "source:#{post_version.source}" if post_version.source.present?
old_tags = previous.present? ? previous.tag_array : []
if previous.present?
old_tags << "rating:#{previous.rating}" if previous.rating.present?
old_tags << "parent:#{previous.parent_id}" if previous.parent_id.present?
old_tags << "source:#{previous.source}" if previous.source.present?
end
added_tags = new_tags - old_tags
removed_tags = old_tags - new_tags
obsolete_added_tags = added_tags - latest_tags,
obsolete_removed_tags = removed_tags & latest_tags,
unchanged_tags = new_tags & old_tags
unchanged_tags = this_tags & other_tags
html = '<span class="diff-list">'
added_tags.each do |tag|
prefix = obsolete_added_tags.include?(tag) ? '+<ins class="obsolete">' : '<ins>+'
html << prefix + link_to(wordbreakify(tag), posts_path(:tags => tag)) + '</ins>'
html << '<ins>+' + link_to(wordbreakify(tag), posts_path(:tags => tag)) + '</ins>'
html << " "
end
removed_tags.each do |tag|
prefix = obsolete_removed_tags.include?(tag) ? '-<del class="obsolete">' : '<del>-'
html << prefix + link_to(wordbreakify(tag), posts_path(:tags => tag)) + '</del>'
html << '<del>-' + link_to(wordbreakify(tag), posts_path(:tags => tag)) + '</del>'
html << " "
end
unchanged_tags.each do |tag|