#45 差分表示以外完了

backend/app/models/wiki_page.rb

@@ -14,15 +14,14 @@ class WikiPage < ApplicationRecord
   end
 
   def set_body content, user:
-    page = wiki.page("#{ id }.md")
-
-    commit_info = { message:  "Update #{ title }",
-                    name:     user.id.to_s,
+    commit_info = { name:     user.id.to_s,
                     email:    'dummy@example.com' }
-
+    page = wiki.page("#{ id }.md")
     if page
+      commit_info[:message] = "Updated #{ id }"
       wiki.update_page(page, id.to_s, :markdown, content, commit_info)
     else
+      commit_info[:message] = "Created #{ id }"
       wiki.write_page(id.to_s, :markdown, content, commit_info)
     end
   end