Use _code as primary key

eh.crs

@@ -7,7 +7,7 @@ gallery(@page=0,code)="http://g.e-hentai.org/g/{code}/?p={@page}&hc=1"
 
 # Crawler Struct
 gallery[]: index -> $("table.itg tr.gtr0,tr.gtr1")
-    title*: $("td.itd div div.it5 a").text
+    title: $("td.itd div div.it5 a").text
     cover: $("td.itd div div.it2")
         .html
         .expand("(//|inits?~)(.*?org)[~/]([^~]*\\.jpg)[~\"]", "http://$2/$3")
@@ -18,7 +18,7 @@ gallery[]: index -> $("table.itg tr.gtr0,tr.gtr1")
         .style
         .expand(`background-position:-?(\d+)px -?(\d+)px`, "5-$1/16-($2-1)/40")
         .calc
-    _code: $("td.itd div div.it5 a").href.match("/g/(.*)")
+    _code*: $("td.itd div div.it5 a").href.match("/g/(.*)")
     tags[]: gallery(code = _code) -> $("div#taglist table tr td:eq(1) div a")
         name*: .html
     pictures[]: gallery(code = _code) -> $("div.gdtl,div.gdtm")