MoneyField

Description

A controlled input component for money values with validation states and a label.

High Precision Money Values

The MoneyField component always operates on a value consisting of

{ amount: String, currencyCode: String }

The amount can have an arbitrary precision. When the precision of the amount exceeds the precision of that currency, then that Money Value is referred to as being "high precision".

⚠️ The MoneyField will allow high precision money values by default. If you want to discourage them, you need to add validation as shown in the example below, or the Examples/Forms story.

Installation

yarn add @commercetools-uikit/money-field

npm --save install @commercetools-uikit/money-field

Additionally install the peer dependencies (if not present)

yarn add react

npm --save install react

Usage

import MoneyField from '@commercetools-uikit/money-field';

const Example = () => (
  <MoneyField
    title="Price"
    value={{ amount: '20', currencyCode: 'EUR' }}
    onChange={(event) => alert(event.target.value)}
    currencies={['EUR', 'USD']}
  />
);

export default Example;

Properties

| Props | Type | Required | Default | Description | | ------------------------- | ----------------------------------------------------------------------------------------------------- | :------: | --------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | id | string | | | Used as HTML id property. An id is auto-generated when it is not specified. | | horizontalConstraint | unionPossible values:, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 'scale', 'auto' | | 'scale' | Horizontal size limit of the input fields. | | errors | Record | | | A map of errors. Error messages for known errors are rendered automatically. Unknown errors will be forwarded to renderError | | warnings | Record | | | A map of warnings. Warning messages for known warnings are rendered automatically. Unknown warnings will be forwarded to renderWarning. | | renderError | FunctionSee signature. | | | Called with custom errors. This function can return a message which will be wrapped in an ErrorMessage. It can also return null to show no error. | | renderWarning | FunctionSee signature. | | | Called with custom warnings, as renderWarning(key, warning). This function can return a message which will be wrapped in a WarningMessage. It can also return null to show no warning. | | isRequired | boolean | | | Indicates if the value is required. Shows an the "required asterisk" if so. | | touched | ObjectSee signature. | | | Indicates whether the currencyCode or amount fields were touched. Errors will only be shown when the field was touched. | | isTouched | unknown | | | | | autoComplete | string | | | Used as HTML autocomplete property | | name | string | | | The prefix used to create a HTML name property for the amount input field (${name}.amount) and the currency dropdown (${name}.currencyCode). | | value | ObjectSee signature. | ✅ | | Value of the input. Consists of the currency code and an amount. amount is a string representing the amount. A dot has to be used as the decimal separator. | | currencies | Array: string[] | | | List of possible currencies. When not provided or empty, the component renders a label with the value's currency instead of a dropdown. | | placeholder | string | | | Placeholder text for the amount input | | onBlur | FunctionSee signature. | | | Called when input is blurred | | onFocus | FunctionSee signature. | | | Called when input is focused | | isDisabled | boolean | | | Indicates that the input cannot be modified (e.g not authorized, or changes currently saving). | | isReadOnly | boolean | | | Indicates that the field is displaying read-only content | | isAutofocussed | boolean | | | Focus the input on initial render | | onChange | FunctionSee signature. | | | Called with the event of the input or dropdown when either the currency or the amount have changed. | | menuPortalTarget | ReactSelectProps['menuPortalTarget'] | | | Dom element to portal the currency select menu to Props from React select was used | | menuPortalZIndex | number | | | z-index value for the currency select menu portal Use in conjunction with menuPortalTarget | | menuShouldBlockScroll | ReactSelectProps['menuShouldBlockScroll'] | | | whether the menu should block scroll while open Props from React select was used | | title | unionPossible values:string , ReactNode | ✅ | | Title of the label | | hint | unionPossible values:string , ReactNode | | | Hint for the label. Provides a supplementary but important information regarding the behaviour of the input (e.g warn about uniqueness of a field, when it can only be set once), whereas description can describe it in more depth. Can also receive a hintIcon. | | description | unionPossible values:string , ReactNode | | | Provides a description for the title. | | onInfoButtonClick | FunctionSee signature. | | | Function called when info button is pressed. Info button will only be visible when this prop is passed. | | hintIcon | ReactElement | | | Icon to be displayed beside the hint text. Will only get rendered when hint is passed as well. | | hasHighPrecisionBadge | boolean | | | Shows high precision badge in case current value uses high precision. | | isCurrencyInputDisabled | boolean | | | Indicates that the currency input cannot be modified. |

Signatures

Signature renderError

(key: string, error?: boolean) => ReactNode;

Signature renderWarning

(key: string, warning?: boolean) => ReactNode;

Signature touched

{
  amount?: boolean;
  currencyCode?: boolean;
}

Signature value

{
  amount: string;
  currencyCode: TCurrencyCode;
}

Signature onBlur

(event: TCustomEvent) => void

Signature onFocus

(event: TCustomEvent) => void

Signature onChange

(event: TCustomEvent) => void

Signature onInfoButtonClick

() => void

data-* props

The component further forwards all data- attributes to the underlying input component.

errors

This object is a key-value map. The renderError prop will be called for each entry with the key and the value. The return value will be rendered inside an ErrorMessage component underneath the input.

The MoneyField supports some errors out of the box. Return undefined from renderError for these and the default errors will be shown instead. This prevents consumers from having to reimplement the same error messages for known errors while still keeping the flexibility of showing custom error messages for them.

When the key is known, and when the value is truthy, and when renderError returned undefined for that error entry, then the MoneyField will render an appropriate error automatically.

Known error keys are:

• missing: tells the user that this field is required but no value was provided

Main Functions and use cases are:

• Getting monetary value input with a currency from users (with cent precision or high precision)

Static methods

MoneyField.toFieldErrors

Use this function to convert the Formik errors object type to our custom field errors type. This is primarily useful when using TypeScript.

type FormValues = {
  myField: string;
};

<MoneyField
  // ...
  name="my-field"
  errors={MoneyField.toFieldErrors<FormValues>(formik.errors).myField}
/>;