fix edge case bugs in itemByName and itemsByName

not-found case was erroring instead of returning a simple null, and string trimming wasn't working right, oops!

src/server/loaders.js

@@ -148,8 +148,10 @@ const buildItemTranslationLoader = (db) =>
   });
 
 const buildItemByNameLoader = (db, loaders) =>
-  new DataLoader(async (names) => {
+  new DataLoader(
+    async (names) => {
       const qs = names.map((_) => "?").join(", ");
+      const normalizedNames = names.map((name) => name.trim().toLowerCase());
       const [rows, _] = await db.execute(
         {
           // NOTE: In our MySQL schema, this is a case-insensitive exact search.
@@ -158,25 +160,27 @@ const buildItemByNameLoader = (db, loaders) =>
               WHERE name IN (${qs}) AND locale = "en"`,
           nestTables: true,
         },
-      names
+        normalizedNames
       );
 
-    const entities = rows.map((row) => {
+      const entitiesByName = new Map();
+      for (const row of rows) {
         const item = normalizeRow(row.items);
         const itemTranslation = normalizeRow(row.item_translations);
         loaders.itemLoader.prime(item.id, item);
         loaders.itemTranslationLoader.prime(item.id, itemTranslation);
-      return { item, itemTranslation };
-    });
 
-    return names.map((name) =>
+        const normalizedName = itemTranslation.name.trim().toLowerCase();
-      entities.find(
+        entitiesByName.set(normalizedName, { item, itemTranslation });
-        (e) =>
+      }
-          e.itemTranslation.name.trim().toLowerCase() ===
+
-          name.trim().toLowerCase()
+      return normalizedNames.map(
-      )
+        (name) =>
+          entitiesByName.get(name) || { item: null, itemTranslation: null }
+      );
+    },
+    { cacheKeyFn: (name) => name.trim().toLowerCase() }
   );
-  });
 
 const buildItemSearchLoader = (db, loaders) =>
   new DataLoader(async (queries) => {

src/server/query-tests/Item.test.js

@@ -113,7 +113,14 @@ describe("Item", () => {
             name
             thumbnailUrl
           }
-          itemsByName(names: ["Zafara Agent Robe", "pile of dung"]) {
+          notFoundItem: itemByName(name: "?! fake name") {
+            id
+            name
+            thumbnailUrl
+          }
+          itemsByName(
+            names: [" Zafara Agent Robe  ", "pile of dung", "?! fake name"]
+          ) {
             id
             name
             thumbnailUrl

src/server/query-tests/__snapshots__/Item.test.js.snap

@@ -742,7 +742,9 @@ Object {
       "name": "Pile of Dung",
       "thumbnailUrl": "http://images.neopets.com/items/med_booby_5.gif",
     },
+    null,
   ],
+  "notFoundItem": null,
 }
 `;
 
@@ -753,16 +755,18 @@ Array [
       "nestTables": true,
       "sql": "SELECT items.*, item_translations.* FROM item_translations
               INNER JOIN items ON items.id = item_translations.item_id
-              WHERE name IN (?, ?, ?) AND locale = \\"en\\"",
+              WHERE name IN (?, ?, ?, ?) AND locale = \\"en\\"",
       "values": Array [
-        "Moon and Stars Background",
+        "moon and stars background",
-        "Zafara Agent Robe",
+        "?! fake name",
+        "zafara agent robe",
         "pile of dung",
       ],
     },
     Array [
-      "Moon and Stars Background",
+      "moon and stars background",
-      "Zafara Agent Robe",
+      "?! fake name",
+      "zafara agent robe",
       "pile of dung",
     ],
   ],
@@ -790,10 +794,6 @@ Object {
           "id": "28",
           "name": "Krawk",
         },
-        Object {
-          "id": "46",
-          "name": "Techo",
-        },
       ],
     },
     Object {
@@ -812,10 +812,6 @@ Object {
           "id": "38",
           "name": "Peophin",
         },
-        Object {
-          "id": "46",
-          "name": "Techo",
-        },
       ],
     },
     Object {
@@ -838,10 +834,6 @@ Object {
           "id": "38",
           "name": "Peophin",
         },
-        Object {
-          "id": "46",
-          "name": "Techo",
-        },
       ],
     },
     Object {
@@ -948,10 +940,6 @@ Object {
           "id": "36",
           "name": "Nimmo",
         },
-        Object {
-          "id": "37",
-          "name": "Ogrin",
-        },
         Object {
           "id": "39",
           "name": "Poogle",
@@ -972,10 +960,6 @@ Object {
           "id": "45",
           "name": "Skeith",
         },
-        Object {
-          "id": "46",
-          "name": "Techo",
-        },
         Object {
           "id": "47",
           "name": "Tonu",
@@ -1050,10 +1034,6 @@ Object {
           "id": "36",
           "name": "Nimmo",
         },
-        Object {
-          "id": "37",
-          "name": "Ogrin",
-        },
         Object {
           "id": "39",
           "name": "Poogle",
@@ -1062,10 +1042,6 @@ Object {
           "id": "41",
           "name": "Quiggle",
         },
-        Object {
-          "id": "42",
-          "name": "Ruki",
-        },
         Object {
           "id": "43",
           "name": "Scorchio",
@@ -1074,10 +1050,6 @@ Object {
           "id": "45",
           "name": "Skeith",
         },
-        Object {
-          "id": "46",
-          "name": "Techo",
-        },
         Object {
           "id": "47",
           "name": "Tonu",
@@ -1160,10 +1132,6 @@ Object {
           "id": "36",
           "name": "Nimmo",
         },
-        Object {
-          "id": "37",
-          "name": "Ogrin",
-        },
         Object {
           "id": "38",
           "name": "Peophin",
@@ -1184,10 +1152,6 @@ Object {
           "id": "45",
           "name": "Skeith",
         },
-        Object {
-          "id": "46",
-          "name": "Techo",
-        },
         Object {
           "id": "47",
           "name": "Tonu",
@@ -1212,10 +1176,6 @@ Object {
       "id": "81137",
       "name": "Maraquan Ocean Blue Contacts",
       "speciesThatNeedModels": Array [
-        Object {
-          "id": "8",
-          "name": "Chomby",
-        },
         Object {
           "id": "13",
           "name": "Flotsam",
@@ -1270,10 +1230,6 @@ Object {
       "id": "81287",
       "name": "Maraquan White Lace Gown",
       "speciesThatNeedModels": Array [
-        Object {
-          "id": "8",
-          "name": "Chomby",
-        },
         Object {
           "id": "13",
           "name": "Flotsam",
@@ -1324,10 +1280,6 @@ Object {
           "id": "7",
           "name": "Chia",
         },
-        Object {
-          "id": "8",
-          "name": "Chomby",
-        },
         Object {
           "id": "13",
           "name": "Flotsam",
@@ -1398,10 +1350,6 @@ Object {
           "id": "7",
           "name": "Chia",
         },
-        Object {
-          "id": "8",
-          "name": "Chomby",
-        },
         Object {
           "id": "13",
           "name": "Flotsam",
@@ -1900,10 +1848,6 @@ Object {
           "id": "53",
           "name": "Yurble",
         },
-        Object {
-          "id": "54",
-          "name": "Zafara",
-        },
         Object {
           "id": "55",
           "name": "Vandagyre",
@@ -1932,10 +1876,6 @@ Object {
           "id": "21",
           "name": "Jubjub",
         },
-        Object {
-          "id": "24",
-          "name": "Kiko",
-        },
         Object {
           "id": "28",
           "name": "Krawk",
@@ -1990,10 +1930,6 @@ Object {
           "id": "21",
           "name": "Jubjub",
         },
-        Object {
-          "id": "24",
-          "name": "Kiko",
-        },
         Object {
           "id": "28",
           "name": "Krawk",
@@ -2048,10 +1984,6 @@ Object {
           "id": "21",
           "name": "Jubjub",
         },
-        Object {
-          "id": "24",
-          "name": "Kiko",
-        },
         Object {
           "id": "28",
           "name": "Krawk",
@@ -3126,6 +3058,10 @@ Object {
           "id": "4",
           "name": "Bori",
         },
+        Object {
+          "id": "5",
+          "name": "Bruce",
+        },
         Object {
           "id": "6",
           "name": "Buzz",
@@ -4714,6 +4650,20 @@ Object {
         },
       ],
     },
+    Object {
+      "id": "67237",
+      "name": "Winter Lights Effect",
+      "speciesThatNeedModels": Array [
+        Object {
+          "id": "28",
+          "name": "Krawk",
+        },
+        Object {
+          "id": "38",
+          "name": "Peophin",
+        },
+      ],
+    },
     Object {
       "id": "69311",
       "name": "MME17-S4a: Snow-Covered Balustrade Foreground",
@@ -6998,10 +6948,6 @@ Object {
           "id": "4",
           "name": "Bori",
         },
-        Object {
-          "id": "7",
-          "name": "Chia",
-        },
         Object {
           "id": "9",
           "name": "Cybunny",
@@ -7014,14 +6960,6 @@ Object {
           "id": "17",
           "name": "Grundo",
         },
-        Object {
-          "id": "20",
-          "name": "Jetsam",
-        },
-        Object {
-          "id": "24",
-          "name": "Kiko",
-        },
         Object {
           "id": "33",
           "name": "Meerca",
@@ -7032,28 +6970,10 @@ Object {
         },
       ],
     },
-    Object {
-      "id": "81736",
-      "name": "Purple & Black Ponytails Wig",
-      "speciesThatNeedModels": Array [
-        Object {
-          "id": "7",
-          "name": "Chia",
-        },
-        Object {
-          "id": "20",
-          "name": "Jetsam",
-        },
-      ],
-    },
     Object {
       "id": "81783",
       "name": "Dyeworks Blue: Decorated Witch Hat and Wig",
       "speciesThatNeedModels": Array [
-        Object {
-          "id": "7",
-          "name": "Chia",
-        },
         Object {
           "id": "26",
           "name": "Korbat",
@@ -7068,18 +6988,6 @@ Object {
           "id": "5",
           "name": "Bruce",
         },
-        Object {
-          "id": "7",
-          "name": "Chia",
-        },
-        Object {
-          "id": "20",
-          "name": "Jetsam",
-        },
-        Object {
-          "id": "24",
-          "name": "Kiko",
-        },
       ],
     },
     Object {
@@ -7094,10 +7002,6 @@ Object {
           "id": "11",
           "name": "Elephante",
         },
-        Object {
-          "id": "28",
-          "name": "Krawk",
-        },
         Object {
           "id": "46",
           "name": "Techo",
@@ -7106,10 +7010,6 @@ Object {
           "id": "48",
           "name": "Tuskaninny",
         },
-        Object {
-          "id": "49",
-          "name": "Uni",
-        },
         Object {
           "id": "52",
           "name": "Xweetok",
@@ -7146,6 +7046,7 @@ Array [
       "62939",
       "64195",
       "64387",
+      "67237",
       "69311",
       "70843",
       "71937",
@@ -7177,7 +7078,6 @@ Array [
       "81697",
       "81708",
       "81709",
-      "81736",
       "81783",
       "81785",
       "81792",