Add basic zone info to simpler item previews

We're missing the feature where we enumerate the exact species in
ambiguous cases, though!

app/assets/stylesheets/items/_show.sass

@@ -160,3 +160,26 @@ body.items-show
       select
         border-color: $error-border-color
         color: $error-color
+
+  .item-zones-info
+    margin-top: .5em
+
+    h3
+      display: inline
+      font: inherit
+      font-weight: bold
+      &:after
+        content: ": "
+
+    ul
+      list-style-type: none
+      display: inline
+
+      li
+        display: inline
+        &:not(:last-of-type):after
+          content: ", "
+
+    .no-zones
+      font-style: italic
+      opacity: .85

app/models/item.rb

@@ -287,7 +287,7 @@ class Item < ApplicationRecord
     options[:scope] ||= Zone.all
     all_body_ids = []
     zone_body_ids = {}
-    selected_assets = swf_assets.select('body_id, zone_id').each do |swf_asset|
+    selected_assets = swf_assets.each do |swf_asset|
       zone_body_ids[swf_asset.zone_id] ||= []
       body_ids = zone_body_ids[swf_asset.zone_id]
       body_ids << swf_asset.body_id unless body_ids.include?(swf_asset.body_id)

app/views/items/show.html.haml

@@ -33,6 +33,25 @@
         "id", "human_name", @selected_preview_pet_type.species_id)
     = submit_tag "Go", name: nil
 
+  .item-zones-info
+    %section
+      %h3 Occupies
+      - if @item.occupied_zones.present?
+        %ul
+          - @item.occupied_zones.sort_by(&:label).each do |zone|
+            %li= zone.label
+      - else
+        %span.no-zones (None)
+
+    %section
+      %h3 Restricts
+      - if @item.restricted_zones.present?
+        %ul
+          - @item.restricted_zones.sort_by(&:label).each do |zone|
+            %li= zone.label
+      - else
+        %span.no-zones (None)
+
 - unless @contributors_with_counts.empty?
   #item-contributors
     %header #{t '.contributors.header'}: