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Use the Document UI SDK

Create UIs directly from TerminusDB's schema
Use the TerminusDB documents User Interface (UI) utility terminusdb-documents-ui to automatically generate customizable 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'

The FrameViewer object

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

FrameViewer parameters

Parameter
Description
frame
The JSON frame structure of a TerminusDB schema.
uiFrame
JSON UI properties to customize the appearance of a form.
type
The document type definition in your schema to display the form for.
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.
hideSubmit
Hide the Submit button to show view-only data.

FrameViewer functions

Function
Description
onSubmit
A customizable JavaScrpt (JS) callback function to process data submitted via a form.
onChange
A customizable JS callback function to process data when form data is changed.
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.
FieldTemplate
Customize the appearance of a form.

FrameViewer common usage

A common use of terminusdb-documents-ui is as follows:
  1. 1.
    Set up a Webpack.
  2. 2.
    Use the TerminusDB JavaScript client.
  3. 3.
    Use the client function getSchemaFrame to retrieve frame data from a TerminusDB database.
  4. 4.
    Set custom values and behaviour for FrameViewer parameters and functions as required.
  5. 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 {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

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. The uiFrames parameter in the example adds customizations for your forms. See Customize the looks and feel of frames for details.
// Create a place holder for the "Person" "name" property.
​
let uiFrames = {
"name" : {
"placeholder": "Please enter a name ..."
}
}
​
// 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}
uiFrame = {uiFrames}
type = {type}
onSelect = {handleSelect}
mode = {mode}
onSubmit = {handleSubmit}/>
Screen-print/s of the output:

FrameViewer modes

The FrameViewer object supports three modes:

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}
onSelect = {handleSelect}
mode = {mode}
formData = {formData}
onSubmit = {handleSubmit}/>
Screen-print/s of the output:

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}
onSelect = {handleSelect}
mode = {mode}
formData = {formData}
onSubmit = {handleSubmit}/>
Screen-print/s of the output:

Further Reading

The Document UI SDK reference guide:
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Last modified 5mo ago