mobx-json

The simplest way to manage your form in React.
State management is charged by mobx, but you can use the materia-ui wrapped one without any knowledge of it.
You can check some examples here: https://mobx-json.thundermiracle.com
Table of Contents
Installation
npm i -S @mobx-json/mui-form react react-dom validatorjs
or
yarn @mobx-json/mui-form react react-dom validatorjs
How to use
-
Define your form in JSON or javascript.
{
"fields": [
{
"settings": {
"widget": "TextField",
"rule": "required|min:3"
},
"attrs": {
"name": "id",
"label": "Use Id",
"placeholder": "input your user id"
}
},
{
"settings": {
"widget": "Password",
"rule": "required|min:8"
},
"attrs": {
"name": "password",
"label": "Password",
"placeholder": "at least 8 chars"
}
}
]
}
-
Create the form
import { useMuiJsonForm } from '@mobx-json/form';
import LoginFormJson from './blueprints/login-form.json';
const IndexPage = props => {
const { form, getDataWithCheck } = useMuiJsonForm({
blueprint: LoginFormJson,
});
const handleSubmit = React.useCallback(async () => {
const data = getDataWithCheck();
if (data) {
await tryLogin(data);
}
}, [getDataWithCheck]);
return (
<Container maxWidth="xs">
<Card>
<CardContent>{form}</CardContent>
<CardActions>
<Button color="primary" onClick={handleSubmit}>
LOGIN
</Button>
</CardActions>
</Card>
</Container>
);
}
-
Display

A more useful sample
./examples/mui-form
How to define blueprint
The blueprint MUST be defined as follows.
{
"fields": [
...
]
}
Each field should contains 3 parts including settings, attrs and fields (which is only necessary for settings.valueType = container).
-
normal component
{
"fields": [
{
"settings": {
"widget": "TextField",
"valueType": "string"
...
},
"attrs": {
"name": "firstName"
...
}
}
]
}
-
container
{
"fields": [
{
"settings": {
"widget": "GridItemContainer",
"valueType": "container"
...
},
"attrs": {
"name": "baseInfoGrid"
...
},
"fields": [
{
"settings": {
"widget": "TextField",
"valueType": "string"
...
},
"attrs": {
"name": "firstName"
...
}
}
]
}
]
}
settings
To define which component to use and validation, etc.
exp:
{
"settings": {
"widget": "TextField",
"valueType": "string",
"rule": "required"
}
}
generate: TextField
component and display error if input is empty.
widget | 〇 | string | | 1. components contained in the package(TextField, Select...) 2. component you passed by widgetMap 3. native component in html(div, span...) |
valueType | | string | string | one of number, string, array, boolean, container |
rule | | string | null | using validatorjs as default validation tool, you can check the default validation rules here |
propRule | | string | null | rule to apply prop dynamically by input values. |
computeRule | | string | null | rule to compute value dynamically by target fields' value. |
widget
Following basic components are included in this package for quicker start: Checkbox, Checkboxes, Display, Password, PasswordOutlined, Radio, Select, SelectOutlined, Switch, TextField, TextFieldOutlined.
valueType (optional)
As every value from e.target.value is converted into string, we have to define a correct valueType to format.
※ container: a special valueType which means sub fields are contained
rule (optional)
A rule to validate the input.
exp: "rule": "required|max:30"
will throws error if input is empty or over 30.
※ here for details
※ sample page
propRule (optional)
Apply defined prop to attrs if meets theYou can define multiple propRule and split them by |
Format:
propName,propValueWhenMeetCondition,propValueType:targetFieldName,targetFieldValue
* Which means if (targetFieldName.value == targetFieldValue) set propName->propValue
exp: "propRule": "hidden,true,boolean:firstName,Daniel"
will hide the component when the firstName equals 'Daniel'.
※ sample page
computeRule (optional)
Compute by other fields value. You can define multiple computeRule and split them by |, but the last rule will win.
Format:
computeMethod:targetFieldName1,targetFieldName2,targetFieldName3...:extraInfo
Now supports 2 computeMethods:
-
concat
concat all targetFields' value into one string
exp: "computeRule": "concat:firstName,lastName:, "
When firstName is 'Daniel', lastName is Wood, component's value will automatically changed to 'Daniel, Woo'.
-
sum
sum all targetFields' value include string numbers. return 0 if character is contained.
exp: "computeRule": "sum:profit1,profit2"
When profit1 is 100, profit2 is 200, component's value will automatically changed to 300.
※ sample page
attrs
All props defined in attrs will be passed to each component. And attrs.name MUST
be unique in each form.
exp:
{
"settings": {
"widget": "TextField",
"valueType": "string"
},
"attrs": {
"name": "firstName",
"label": "First Name",
"placeholder": "input your first name"
}
}
generates:
<TextField name="firstName" label="First Name" placeholder="input your first name" />
Extended props in every component:
grid | | object | { "xs": 12 } | responsive grid layout. Automatically add xs=12 to every component unless noGrid is true . See here for details. |
noGrid | | boolean | false | if true , grid will be ignored |
defaultValue | | any | null | applied to value if it's undefined |
value | | any | null | value for display |
keepLabelSpace | | boolean | false | if true , margin-top: 16px |
icon | | string | | 1. iconsMap MUST be passed in initialization. see iconsMap example and how to initialize. 2. icon is one of the keys defined in iconsMap.js. 3. IconComponent will be passed to each component. |
itemsSource | | string | | 1. itemsSource MUST be passed in initialization. see itemsSource example and how to initialize. 2. itemsSource is one of the keys defined in itemsSource.js. 3. itemsSource will be converted to items and passed to each component. 4. Available in Radio, Checkboxes component |
Components
Check the example page:
GridItemContainer
rest props are the same with material-ui's Grid component.
{
"settings": {
"widget": "GridItemContainer",
"valueType": "container"
...
},
"attrs": {
"name": "nameGrid",
"divider": false,
"primary": '',
"primaryProps": {},
"secondary": '',
"secondaryProps": {},
"subPrimary": '',
"subPrimaryProps": {},
"hidden": false,
"disabled": false,
...rest props
}
}
Checkbox
rest props are the same with material-ui's Grid component.
{
"settings": {
"widget": "Checkbox",
"valueType": "boolean",
"rule": "required"
},
"attrs": {
"name": "subscription",
"label": "Subscribe the news letter!"
...rest props
}
}
Checkboxes
{
"settings": {
"widget": "Checkboxes",
"valueType": "array",
"rule": "required"
},
"attrs": {
"name": "interest",
"label": "Your Interests",
"selectAll": false,
"selectAllLabel": "ALL",
"icon": "",
"itemsSource": "",
"items": [
{
"label": "Movie",
"value": 1
},
{
"label": "Gaming",
"value": 2
},
{
"label": "Coding",
"value": 3
}
]
}
}
Data
For keeping data and will not be rendered.
exp:
{
"settings": {
"widget": "Data"
},
"attrs": {
"name": "id"
}
}
Display
For display and format value. See examples.
formatters:
- date: yyyy/MM/dd HH:mm:ss
- time: HH:mm
- age: compute age
- digit: toLocaleString() (1234 -> 1,234)
{
"settings": {
"widget": "Display"
},
"attrs": {
"name": "birthday",
"label": "Birthday",
"icon": "Today",
"format": {
"type": "date",
"template": "yyyy年MM月dd日"
}
}
}
Password
PasswordOutlined
Radio
Select
SelectOutlined
Switch
TextField
TextFieldOutlined
Autocomplete
See examples.
{
"settings": {
"widget": "Autocomplete",
"rule": "required",
"service": "filmService",
"serviceRouter": "get",
"serviceParamFields": [],
},
"attrs": {
"name": "film",
"label": "FavoriteFilm",
"freeSolo": true,
"icon": "MenuBook",
"reloadOnInput": true,
"reloadExcludeRegex": "[0-9]",
"reloadDelay": 300,
"loaderText": "Loading...",
"extraAutocompleteProps": {},
"autoHighlight": false,
"autoComplete": false,
"autoSelect": false,
...
}
+
}
AutocompleteOutlined
How to use in React
Package is using hook to make the form and return submit functions. React > 16.8 is needed.
Initialize (optional)
Need if icon, itemsSource
is used, use customized components or display self-defined error messages.
See example.
locale | | string | en | validatorjs' locale string |
messages | | object | {} | key-value object for extended error messages |
itemsSource | △ | object | {} | key-value object for items definition. ※ required if itemsSource is used in blueprint |
iconsMap | △ | object | {} | key-value object for IconComponent definition. ※ required if icon is used in blueprint |
serviceContainer | △ | object | {} | key-value object for services' definition. pass asyncLoadItems to component which returns items asynchronously ※ required if service is used in blueprint |
extraWidgetMap | | object | {} | key-value object for extra Widget(component) |
-
initialize example:
import { initialize } from '@mobx-json/mui-form';
initialize({
locale: 'zh',
messages,
itemsSource,
iconsMap,
extraWidgetMap
});
-
itemsSource example:
export default {
City: [
{
label: '東京都',
value: 'tokyo',
},
{
label: '神奈川県',
value: 'kanagawa',
},
{
label: '千葉県',
value: 'chiba',
},
],
Sex: [
{
label: 'Male',
value: 0,
},
{
label: 'Female',
value: 1,
},
{
label: 'Other',
value: -1,
},
],
}
-
iconsMap example:
import AccountCircle from '@material-ui/icons/AccountCircle';
import ContactMail from '@material-ui/icons/ContactMail';
export default {
AccountCircle,
ContactMail,
};
-
extraWidgetMap example:
import MyTextField from './MyTextField';
export default {
AdvancedTextField: MyTextField,
};
Generate form
Use hook useMuiJsonForm to generate form.
example:
import { useMuiJsonForm } from '@mobx-json/mui-form';
const { form, getDataWithCheck, setData, setBlueprint } = useMuiJsonForm({
blueprint,
formUniqName,
data,
});
React.useEffect(async () => {
const dataFromServer = await readDataFromServer();
setData(dataFromServer);
}, []);
const handleSubmit = React.useCallback(async () => {
const submitData = getDataWithCheck();
if (submitData) {
await saveDataToServer(submitData);
}
}, [getDataWithCheck]);
See example.
useMuiJsonForm's parameters
blueprint | 〇 | object | | blueprint for rendering form. See details. |
formUniqName | △ | string | '' | necessary if define multiple forms in one page, or auto focus when errors occur will fail. |
data | | object | {} | data for form in initialization |
options | | object | { smoothScroll: true, gridContainerProps: {} } | 1. smoothScroll: if true, append style scroll-behavior:smooth; to the latest overflow: auto; component. 2. gridContainerProps: props applied to root grid container |
useMuiJsonForm's output
useMuiJsonForm returns an object contains following parameters:
form | React.Element | React form generated by blueprint |
setData | Function | apply data object to form |
getData | Function | returns input data without running validation |
getDataWithCheck | Function | validate all inputs, if ok, returns input data; if not, returns false and automatically focus the first error field. |
setBlueprint | Function | apply a new blueprint. ※ re-render all fields! |
clearError | Function | clear all error messages |
clearData | Function | clear all data, set it to defaultValue if exists |
clearAll | Function | clearError & clearData |
revertToInit | Function | clearError & revert inputs to initialized data |
License
This project is licensed under the terms of the MIT license.