reac-admin multuiple edit buttoins code example

Example: minvalue validation react admin

import React from 'react';
import {
    TabbedForm,
    FormTab,
    Edit,
    Datagrid,
    TextField,
    DateField,
    TextInput,
    ReferenceManyField,
    NumberInput,    
    DateInput,
    BooleanInput,
    EditButton
} from 'react-admin';

export const PostEdit = (props) => (
    <Edit {...props}>
        <TabbedForm>
            <FormTab label="summary">
                <TextInput disabled label="Id" source="id" />
                <TextInput source="title" validate={required()} />
                <TextInput multiline source="teaser" validate={required()} />
            </FormTab>
            <FormTab label="body">
                <RichTextInput source="body" validate={required()} addLabel={false} />
            </FormTab>
            <FormTab label="Miscellaneous">
                <TextInput label="Password (if protected post)" source="password" type="password" />
                <DateInput label="Publication date" source="published_at" />
                <NumberInput source="average_note" validate={[ number(), minValue(0) ]} />
                <BooleanInput label="Allow comments?" source="commentable" defaultValue />
                <TextInput disabled label="Nb views" source="views" />
            </FormTab>
            <FormTab label="comments">
                <ReferenceManyField reference="comments" target="post_id" addLabel={false}>
                    <Datagrid>
                        <TextField source="body" />
                        <DateField source="created_at" />
                        <EditButton />
                    </Datagrid>
                </ReferenceManyField>
            </FormTab>
        </TabbedForm>
    </Edit>
);