app/views/content/display/_changelog.html.erb
<%
attribute_change_events = content.raw_model.attribute_change_events
changed_attributes = Attribute.where(id: attribute_change_events.select { |event| event.content_type == 'Attribute' }.map(&:content_id))
changed_fields = AttributeField.where(id: changed_attributes.pluck(:attribute_field_id)).includes([:attribute_category])
%>
<div class="row">
<div class="col s12 m12 l10 offset-l1">
<h1 class="flow-text grey-text">
Recent changes for <%= link_to content.name, polymorphic_path(content.raw_model) %>
</h1>
<% attribute_change_events.reverse.each do |change_event| %>
<%
# Some of the really old events (4+ years ago) don't have a user. We can just skip those.
next if change_event.user.nil?
%>
<% change_event.changed_fields.each do |field_key, change| %>
<% related_attribute = changed_attributes.detect { |attribute| attribute.id == change_event.content_id } %>
<% related_field = changed_fields.detect { |field| field.id == related_attribute.attribute_field_id } %>
<% related_category = related_field.attribute_category %>
<%
# Skip field changes if the value didn't actually change
next if change.first == change.second
# Skip field changes if the value only changed from one blank value to another
next if change.first.blank? && change.second.blank?
# Don't show ContentChangeEvents for excluded fields like updated_at, etc
next if ContentChangeEvent::FIELD_IDS_TO_EXCLUDE.include?(field_key)
%>
<%
old_value = change.first.blank? ? ContentChangeEvent::BLANK_PLACEHOLDER : change.first.to_s
new_value = change.second.blank? ? ContentChangeEvent::BLANK_PLACEHOLDER : change.second.to_s
visible_change = true
if related_field.label.start_with?('Private') # todo actual privacy flag on attributes
visible_change = user_signed_in? && (
(content.raw_model.is_a?(Universe) && content.user == current_user) ||
(content.respond_to?(:universe) && content.universe && content.universe.user == current_user) ||
(content.respond_to?(:universe) && content.universe.nil? && content.user == current_user)
)
end
unless visible_change
old_value = ContentChangeEvent::PRIVATE_PLACEHOLDER
new_value = ContentChangeEvent::PRIVATE_PLACEHOLDER
end
# Just for clarity / ease of mind to users -- we treat blank on privacy field as "private", but that's not obvious to them.
if related_field.label.downcase == 'privacy'
old_value = 'private' if old_value == ContentChangeEvent::BLANK_PLACEHOLDER
new_value = 'private' if new_value == ContentChangeEvent::BLANK_PLACEHOLDER
end
%>
<div class="row">
<div class="col s12">
<strong>
<i class="material-icons tiny" style="position: relative; top: 2px"><%= related_category.icon %></i>
<%= related_category.label %>
</strong>
›
<strong><%= related_field.label %></strong>
<%= change_event.action %>
by
<span>
<%= link_to(change_event.user.display_name, change_event.user, class: "#{User.text_color}") %>
</span>
<div class="grey-text right">
<%= time_ago_in_words change_event.created_at %> ago
·
<%= change_event.created_at.strftime('%B %d, %H:%M %Z') %>
</div>
</div>
</div>
<div style="margin-bottom: 4em" class="black-text">
<%=
render partial: "content/changelog/field_change/#{related_field.field_type}",
locals: { old_value: old_value, new_value: new_value }
%>
</div>
<% end %>
<% end %>
<% if content.user.present? %>
<div class="card-panel">
<%= content.class_name %> <%= content.name %> was created by <%= link_to content.user.name, content.user %>
<span class='grey-text'><%= time_ago_in_words content.raw_model.created_at %> ago</span>.
</div>
<% end %>
</div>
</div>