add-cms

source/admin/packages/decap-cms-lib-widgets/src/validations.ts

@@ -0,0 +1,31 @@
+import isNumber from 'lodash/isNumber';
+
+import type { List } from 'immutable';
+
+export function validateMinMax(
+  t: (key: string, options: unknown) => string,
+  fieldLabel: string,
+  value?: List<unknown>,
+  min?: number,
+  max?: number,
+) {
+  function minMaxError(messageKey: string) {
+    return {
+      type: 'RANGE',
+      message: t(`editor.editorControlPane.widget.${messageKey}`, {
+        fieldLabel,
+        minCount: min,
+        maxCount: max,
+        count: min,
+      }),
+    };
+  }
+
+  if ([min, max, value?.size].every(isNumber) && (value!.size < min! || value!.size > max!)) {
+    return minMaxError(min === max ? 'rangeCountExact' : 'rangeCount');
+  } else if (isNumber(min) && min > 0 && value?.size && value.size < min) {
+    return minMaxError('rangeMin');
+  } else if (isNumber(max) && value?.size && value.size > max) {
+    return minMaxError('rangeMax');
+  }
+}