Files
directus/docs/extensions/displays.md
2021-11-10 10:29:40 -05:00

134 lines
3.6 KiB
Markdown

# Custom Displays <small></small>
> Displays are small inline components that allow you to create new ways of viewing field values throughout the App.
> [Learn more about Displays](/getting-started/glossary/#displays).
## 1. Setup the Boilerplate
Every display is a standalone "package" that contains at least a metadata file and a Vue component. We recommend using
the following file structure:
```
src/
index.js
display.vue
```
### src/index.js
```js
import DisplayComponent from './display.vue';
export default {
id: 'custom',
name: 'Custom',
description: 'This is my custom display!',
icon: 'box',
component: DisplayComponent,
types: ['string'],
};
```
- `id` — The unique key for this display. It is good practice to scope proprietary displays with an author prefix.
- `name` — The human-readable name for this display.
- `description` — A short description (<80 characters) of this display shown in the App.
- `icon` — An icon name from the [material icon set](/getting-started/glossary/#material-icons), or the extended list of
Directus custom icons.
- `component` — A reference to your Vue component.
- `types` — A CSV of supported [types](/getting-started/glossary/#types).
::: tip
[See the TypeScript definition](https://github.com/directus/directus/blob/20355fee5eba514dd75565f60269311187010c66/app/src/displays/types.ts#L24-L34)
for more info on what can go into this object.
:::
### src/display.vue
```vue
<template>
<div>Value: {{ value }}</div>
</template>
<script>
export default {
props: {
value: String,
},
};
</script>
```
The props you can use in a display are:
- `value` — The value of the parent field.
- `interface` - The interface of the parent field.
- `interface-options` - The options for the parent field's interface.
- `type` — The type of the parent field.
- `collection` — The collection name of the parent field.
- `field` — The key of the parent field.
---
Instead of defining the component inside a Vue SFC file, you can use a functional component. This allows you to make
simple displays that don't need a full component rendered:
```js
export default {
id: 'custom',
name: 'Custom',
description: 'This is my custom display!',
icon: 'box',
component: function ({ value }) {
return value.toLowerCase();
},
types: ['string'],
};
```
## 2. Install Dependencies
Set up a package.json file by running:
```bash
npm init -y
```
To be read by the Admin App, your custom display's Vue component must first be bundled into a single `index.js` file. We
recommend bundling your code using the directus-extension CLI from our `@directus/extensions-sdk` package. The CLI
internally uses a Rollup configuration tailored specifically to bundling Directus extensions. To install the Extension
SDK, run this command:
```bash
npm i -D @directus/extensions-sdk
```
For the directus-extension CLI to recognize the extension type, the input path and the output path, add this field to
the root of the `package.json` file:
```json
"directus:extension": {
"type": "display",
"path": "dist/index.js",
"source": "src/index.js",
"host": "^9.0.0-rc.87",
"hidden": false
}
```
## 3. Develop Your Custom Display
The display itself is simply a function or a Vue component, providing a blank canvas for creating anything you need.
## 4. Build and Deploy
To build the display for use within Directus, run:
```bash
npx directus-extension build
```
Finally, move the output from your display's `dist` folder into your project's `/extensions/displays/my-custom-display`
folder. Keep in mind that the extensions directory is configurable within your env file, and may be located elsewhere.