feat: checkpoint

platform/database/parser.ts

@@ -0,0 +1,29 @@
+import type z from "zod";
+import type { ZodType } from "zod";
+
+/**
+ * Takes a single record from a list of database rows.
+ *
+ * @param rows - List of rows to retrieve record from.
+ */
+export function takeOne<TSchema extends ZodType>(
+  schema: TSchema,
+): (records: unknown[]) => z.output<TSchema> | undefined {
+  return (records: unknown[]) => {
+    if (records[0] === undefined) {
+      return undefined;
+    }
+    return schema.parse(records[0]);
+  };
+}
+
+/**
+ * Takes all records from a list of database rows and validates each one.
+ *
+ * @param schema - Zod schema to validate each record against.
+ */
+export function takeAll<TSchema extends ZodType>(schema: TSchema): (records: unknown[]) => z.output<TSchema>[] {
+  return (records: unknown[]) => {
+    return records.map((record) => schema.parse(record));
+  };
+}