CustomField Controls

CustomField Controls

Another way to extend the Admin UI app is to define custom form control components for manipulating any Custom Fields you have defined on your entities.

Let’s say you define a custom “intensity” field on the Product entity:

// project/vendure-config.ts

customFields: {
  Product: [
    { name: 'intensity', type: 'int', min: 0, max: 100, defaultValue: 0 },
  ],
}

By default, the “intensity” field will be displayed as a number input:

But let’s say we want to display a range slider instead. Here’s how we can do this using our shared extension module combined with the registerCustomFieldComponent() function:

import { NgModule, Component } from '@angular/core';
import { FormControl } from '@angular/forms';
import { SharedModule, CustomFieldControl, 
  CustomFieldConfigType, registerCustomFieldComponent } from '@vendure/admin-ui/core';

@Component({
  template: `
    <input
        type="range"
        [min]="config.intMin"
        [max]="config.intMax"
        [formControl]="formControl" />
    {{ formControl.value }}
  `,
})
export class SliderControl implements CustomFieldControl {
  readonly: boolean;
  config: CustomFieldConfigType;
  formControl: FormControl;
}

@NgModule({
  imports: [SharedModule],
  declarations: [SliderControl],
  providers: [
    registerCustomFieldComponent('Product', 'intensity', SliderControl),
  ]
})
export class SharedExtensionModule { }

Re-compiling the Admin UI will result in our SliderControl now being used for the “intensity” custom field:

To recap the steps involved:

Create an Angular Component which implements the CustomFieldControl interface.
Add this component to your shared extension module’s declarations array.
Use registerCustomFieldComponent() to register your component for the given entity & custom field name.