Sanity.io - Reference Code

role.js

export default {
    name: 'role',
    type: 'document', 
    title: 'Role',
    fieldsets: [
        {name: 'duration', title: 'Duration', options:{columns: 2}}
    ],
    fields: [
        {title: 'Title', name: 'title', type: 'string'},
        {title: 'Role', name: 'role', type: 'string'},
        {title: 'Company', name: 'company', type: 'reference',to: [{type: 'company'}]},
        {title: 'Start Date', name: 'startDate', type: 'date', fieldset: 'duration'},
        {title: 'End Date',name: 'endDate', type: 'date', fieldset: 'duration'},
        {title: 'Summary', name: 'summary', type: 'richText' }
    ]
}