Build Admin pages

src/lib/svelte-admin/form-data.ts

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+import type { PrismaScalarType } from './types';
+
+export function extractFormData(
+	formData: FormData,
+	formFields: string[],
+	fieldTypes: Record<string, PrismaScalarType>
+): Record<string, unknown> {
+	const data: Record<string, unknown> = {};
+
+	for (const field of formFields) {
+		const type = fieldTypes[field] ?? 'String';
+		const raw = formData.get(field);
+
+		switch (type) {
+			case 'Int': {
+				const val = raw?.toString() ?? '';
+				data[field] = val === '' ? null : parseInt(val, 10);
+				break;
+			}
+			case 'Float': {
+				const val = raw?.toString() ?? '';
+				data[field] = val === '' ? null : parseFloat(val);
+				break;
+			}
+			case 'Boolean': {
+				data[field] = raw === 'on' || raw === 'true';
+				break;
+			}
+			case 'DateTime': {
+				const val = raw?.toString() ?? '';
+				data[field] = val === '' ? null : new Date(val);
+				break;
+			}
+			default: {
+				data[field] = raw?.toString() ?? '';
+				break;
+			}
+		}
+	}
+
+	return data;
+}