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Update custom-field-type.mdx to add custom validation #587

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Update custom-field-type.mdx to add custom validation #587

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10 changes: 9 additions & 1 deletion src/docs/5.35.x/headless-cms/extending/custom-field-type.mdx
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Original file line number Diff line number Diff line change
Expand Up @@ -127,6 +127,7 @@ As our next step, we'll define a renderer for our new field. The renderer determ
```ts secretTextFieldRendererPlugin.tsx
import React from "react";
import { CmsEditorFieldRendererPlugin } from "@webiny/app-headless-cms/types";
import { ValidationError } from "@webiny/validation";
import { Input } from "@webiny/ui/Input";

export default (): CmsEditorFieldRendererPlugin => ({
Expand All @@ -142,8 +143,15 @@ export default (): CmsEditorFieldRendererPlugin => ({
render({ field, getBind }) {
const Bind = getBind();

const validator = (value: any) => {
if (value.length < 8) {
return new ValidationError("Value must be at least 8 characters long to have enough entropy to be secret enough.");
}
return true;
}

return (
<Bind>
<Bind validators={validator}>
{bind => (
<Input
{...bind}
Expand Down