Lightning Web Component: How to Get Picklist Values when recordTypeId is null

Question

The lighting web component documentation shows how to get picklist values with the getPicklistValues wire adapter. Following this and other examples, I have come up with the below code.

The getPicklistValues adapter requires a recordTypeId value. Documenation says:

recordTypeId—(Required) The ID of the record type. Use the Object Info defaultRecordTypeId property, which is returned from getObjectInfo or getRecordUi

There are situations where defaultRecordTypeId returns null when using the getObjectInfo adapter. For example, in my case when trying to get the values for a picklist on the Opportunity Line Item Object. When the defaultRecordTypeId is null, I am finding that it crashes the component when loading.

I am wondering if this is a limitation of the getPicklistValues adapter or if I am missing some workaround. Thanks for your input!

/*eslint-disable no-console*/
import { LightningElement, wire, track } from 'lwc';
import { getPicklistValues, getObjectInfo } from 'lightning/uiObjectInfoApi'; 
import SuppliesLeftUOM_Field from '@salesforce/schema/OpportunityLineItem.SuppliesLeftUOM__c'; 
import OpptyLiObject from '@salesforce/schema/OpportunityLineItem'; 

export default class aTemp extends LightningElement {
    @track picklistValues;

    // GET OBJECT INFO
    @wire (getObjectInfo, {objectApiName: OpptyLiObject})
    objectInfo({
        error,data
    })
    {if(data){
        console.log(data); 
    } else if(error){
        console.log(error);
    }}  

    // GET PICKLIST VALUES 
    @wire (getPicklistValues, {recordTypeId: '$objectInfo.data.defaultRecordTypeId', fieldApiName: SuppliesLeftUOM_Field})
    picklistValues({
        error,data
    })
    {if(data){
        this.picklistValues = data;
    } else if(error){
        console.log(error);
    }}  
}

Answer 1

To use getPicklistValues on OpportunityLineItem (and possibly other objects without record types) you can hard-code the master record type Id - 012000000000000AAA - like so:

@wire(
    getPicklistValues, 
    { recordTypeId: '012000000000000AAA', fieldApiName: PICKLIST_FIELD }
)
picklistValues;

This works for me in API 46.0. Hope this helps!

Answer 2

The issue is that $objectInfo.data.defaultRecordTypeId never becomes non-undefined because this.objectInfo is a function.

Try the code below instead.

Also remember that @wire provisions a stream of values. If you wire to a function you need to "reset" all state in the if/else.

import { LightningElement, wire, track } from 'lwc';
import { getPicklistValues, getObjectInfo } from 'lightning/uiObjectInfoApi'; 
import SuppliesLeftUOM_Field from '@salesforce/schema/OpportunityLineItem.SuppliesLeftUOM__c'; 
import OpptyLiObject from '@salesforce/schema/OpportunityLineItem'; 

export default class aTemp extends LightningElement {
    @track picklistValues;

    // GET OBJECT INFO
    @wire (getObjectInfo, {objectApiName: OpptyLiObject})
    objectInfo;

    // GET PICKLIST VALUES 
    @wire (getPicklistValues, {recordTypeId: '$objectInfo.data.defaultRecordTypeId', fieldApiName: SuppliesLeftUOM_Field})
    wiredPicklistValues({ error, data }) {
        // reset values to handle eg data provisioned then error provisioned
        this.picklistValues = undefined;
        if (data) {
            this.picklistValues = data;
        } else if (error) {
            console.log(error);
        }
    }  
}

Answer 3

For anyone that comes across this issue in the future:

The issue seems to be specific to the object OpportuinityLineItem.

In order to retrieve picklist values for this object you need to provide the recordTypeId of the opportunity itself.

import { getPicklistValues, getObjectInfo } from 'lightning/uiObjectInfoApi'; 
import YOUR_PICKLIST_FIELD from '@salesforce/schema/OpportunityLineItem.PicklistField__c'; 
import OPPORTUNITY_OBJECT from '@salesforce/schema/Opportunity';

export default class aTemp extends LightningElement {
    picklistValues;

    // GET OBJECT INFO
    @wire (getObjectInfo, {objectApiName: OPPORTUNITY_OBJECT})
    opportunityObjectInfo  

    // GET PICKLIST VALUES 
    @wire (getPicklistValues, {recordTypeId: '$opportunityObjectInfo.data.defaultRecordTypeId', fieldApiName: YOUR_PICKLIST_FIELD})
    wiredPicklistValues({ error, data }) {
        if (data) {
            this.picklistValues = data.values;
        } else if (error) {
            console.log(error);
        }
    }  
}

Answer 4

I was having the same issue just now and it appears that the data object contains an array of values where the options for the combobox are contained. In other words I had to assign them like so: this.options = data.values;

import { LightningElement, wire, track } from 'lwc';
import { getPicklistValues, getObjectInfo } from 'lightning/uiObjectInfoApi'; 
import SuppliesLeftUOM_Field from '@salesforce/schema/OpportunityLineItem.SuppliesLeftUOM__c'; 
import OpptyLiObject from '@salesforce/schema/OpportunityLineItem'; 

export default class aTemp extends LightningElement {
    @track picklistValues;

    // GET OBJECT INFO
    @wire (getObjectInfo, {objectApiName: OpptyLiObject})
    objectInfo;

    // GET PICKLIST VALUES 
    @wire (getPicklistValues, {recordTypeId: '$objectInfo.data.defaultRecordTypeId', fieldApiName: SuppliesLeftUOM_Field})
    wiredPicklistValues({ error, data }) {
        // reset values to handle eg data provisioned then error provisioned
        this.picklistValues = undefined;
        if (data) {
            this.picklistValues = data.values;
        } else if (error) {
            console.log(error);
        }
    }  
}