code: def get_by_wiki(citiao):
          '''
          Get the wiki record by title.
          '''
          q_res = TabWiki.select().where(TabWiki.title == citiao)
          the_count = q_res.count()
          if the_count == 0 or the_count > 1:
              return None
          else:
              MWiki.update_view_count(citiao)
              return q_res.get(f get_by_wiki(citiao):
          '''
          Get the wiki record by title.
          '''
          q_res = TabWiki.select().where(TabWiki.title == citiao)
          the_count = q_res.count()
          if the_count == 0 or the_count > 1:
              return None
          else:
              MWiki.update_view_count(citiao)
              return q_res.get()
docs: Get the wiki record by title.