description
Create UIs directly from TerminusDB's schema

Use the Document UI SDK

Use the TerminusDB documents User Interface (UI) utility terminusdb-documents-ui to automatically generate user interfaces for the document definitions in your TerminusDB schema. The utility takes frames as input and outputs forms in HTML format. A frame is the JSON structure of a JSON document, including the document's inherited properties and IRIs.

Install and import

Install the utility from npm:

npm install @terminusdb/terminusdb-documents-ui --save

Import the FrameViewer component into your code:

import {FrameViewer} from '@terminusdb/terminusdb-documents-ui'

Import the FrameViewer css into your code:

For dark mode include the below css

import '@terminusdb/terminusdb-documents-ui/dist/css/terminusdb__darkly.css'

light mode

import '@terminusdb/terminusdb-documents-ui/dist/css/terminusdb__light.css'

The FrameViewer object

Use the FrameViewer object of terminusdb-documents-ui to configure and display your forms. FrameViewer supports several parameters and functions.

FrameViewer parameters

Parameter	Description
frame	The JSON frame structure of a TerminusDB schema.
mode	Form modes - Create, Edit, or View.
formData	The data entered into or provided for a form. Specify formData in Edit and View modes to display data.
type	document type of interest to be displayed in form.
language	language code parameters to support a wide variety of languages in UI as defined in schema

FrameViewer functions

Function	Description
onSubmit	A customizable JavaScrpt (JS) callback function to process data submitted via a form.
onSelect	JS callback function to retrieve the selected values from a Select component.
onTraverse	Return the ID of a document on a click event. Useful for binding an onClick event with a document.

FrameViewer Mandatory props

props	Mandatory
frame	true
type	true
mode	true
formData	formData has to be mandatory in Edit or View mode. If nothing to display then pass empty json {}

FrameViewer common usage

A common use of terminusdb-documents-ui is as follows:

1. Set up a Webpack.
2. Use the TerminusDB JavaScript client.
3. Use the client function getSchemaFrame to retrieve frame data from a TerminusDB database.
4. Set custom values and behaviour for FrameViewer parameters and functions as required.
5. Call FrameViewer to display frame data in the specified form.

Get schema frame data from a database

A basic example below to get started with a TerminusDB JavaScript client.

const TerminusDBClient = require("@terminusdb/terminusdb-client");
import '@terminusdb/terminusdb-documents-ui/dist/css/terminusdb__darkly.css'
import {FrameViewer} from '@terminusdb/terminusdb-documents-ui'

try {
    let type = "Person" // type is the a document class of interest
    let frames = await woqlClient.getSchemaFrame(type, woqlClient.db())
    console.log(`Frames generated from ${woqlClient.db()}`, frames)
} catch(err) {
    console.log("Error fetching frames", err)
}

FrameViewer usage step-by-step

Use three simple steps - input, configure, and output:

Step 1. Create frame data

Step 2. Configure properties and functions

Step 3. Generate the form

Step 1. Create frame data

For simplicity, all examples use the frames definition below consisting of one document Person.

let frames = {
   "@context": {
        "@base": "terminusdb:///data/",
        "@schema": "terminusdb:///schema#",
        "@type": "@context"
   },
   "Person": {
        "@key": {
            "@type": "Random"
        },
        "@type": "Class",
        "DOB": "xsd:dateTime",
        "active": "xsd:boolean",
        "age": "xsd:decimal",
        "name": "xsd:string"
    }
}

// The document to display the frame for. 

let type = "Person"

Step 2. Configure properties and functions

The example below generates an empty frame for the attributes of the Person document. The callback function handleSubmit displays any user-entered form data. Add functionality to handleSubmit to suit your requirements.

// Mode "Create" displays an empty frame.

let mode = "Create"

// Callback to display form data.

function handleSubmit(data) {
    console.log("Form data: ", data)
}

Step 3. Generate the form

Generate the form using the properties and functions defined in the previous step.

// Generate the form.

return <FrameViewer
    frame = {frames}
    type = {type}
    mode = {mode}
    onSubmit = {handleSubmit}/>

FrameViewer modes

The FrameViewer object supports three modes:

• Create
• Edit
• View

Create mode

The Create mode displays an empty frame as demonstrated in the previous example.

Edit mode

The Edit mode displays populated and empty frames. This mode requires the formData parameter.

// Mode "Edit" displays a frame with editable data.

let mode = "Edit"

// Add form data to populate the frame.

let formData = {
	"@id": "Person/John%20Doe",
	"@type": "Person",
	first_name: "John",
	last_name: "Doe",
	age: "17",
	active: true,
	DOB: "2022-03-31T10:01:11.000Z"
}

// Callback to display form data.

function handleSubmit(data) {
    console.log("Form data: ", data)
}

// Generate the form with formData paramter.

return <FrameViewer
    frame = {frames}
    type = {type}
    mode = {mode}
    formData = {formData}
    onSubmit = {handleSubmit}/>

View Mode

The View mode displays populated frames for view-only - the Submit button is automatically hidden. If the formData parameter is omitted, an empty form is displayed.

// Mode "View" displays populated frames.

let mode = "View"

// Add form data to populate the frame.

let formData = {
	"@id": "Person/John%20Doe",
	"@type": "Person",
	first_name: "John",
	last_name: "Doe",
	age: "17",
	active: true,
	DOB: "2022-03-31T10:01:11.000Z"
}

// Callback to display form data.

function handleSubmit(data) {
    console.log("Form data: ", data)
}

// Generate the form with formData paramter.

return <FrameViewer
    frame = {frames}
    type = {type}
    mode = {mode}
    formData = {formData}
    onSubmit = {handleSubmit}/>

Further Reading

The Document UI SDK reference guide:

Documents UI SDK data types.

****Documents UI SDK Geographic Maps.

****TerminusDB JavaScript client reference guide.