<aura:component >
<aura:attribute name="recordId" type="String" required="true"/>
<aura:attribute name="recordInfo" type="Object"/>
<aura:attribute name="fieldsInfo" type="Object"/>
<aura:attribute name="currView" type="String" />
<aura:attribute name="recordError" type="String"/>
<force:recordData aura:id="recordLoader"
recordId="{!v.recordId}"
mode="VIEW"
targetRecord="{!v.recordInfo}"
targetFields="{!v.fieldsInfo}"
fields="Name,Owner.Name,AnnualRevenue,AccountNumber"
targetError="{!v.recordError}"
/>
<div class="maincontainer">
<div class="slds-col--padded slds-size--1-of-1 slds-medium--1-of-1 slds-large-size--1-of-1">
<div class="slds-form-element__control" >
<lightning:input label="Account Name" name="accname" value="{!v.fieldsInfo.Name}" disabled="true"/>
</div>
</div>
<div class="slds-col--padded slds-size--1-of-1 slds-medium--1-of-1 slds-large-size--1-of-1">
<div class="slds-form-element__control" >
<lightning:input type="number" label="Annual Revenue" name="atype" value="{!v.fieldsInfo.AnnualRevenue}" formatter="currency" disabled="true"/>
</div>
</div>
<div class="slds-col--padded slds-size--1-of-1 slds-medium--1-of-1 slds-large-size--1-of-1">
<div class="slds-form-element__control" >
<lightning:input label="Account Number" name="accnum" value="{!v.fieldsInfo.AccountNumber}" disabled="true"/>
</div>
</div>
<div class="slds-col--padded slds-size--1-of-1 slds-medium--1-of-1 slds-large-size--1-of-1">
<div class="slds-form-element__control" >
<!--<lightning:button variant="brand" label="Save" onclick="{!c.saveRecordHandler}"/> -->
<lightning:button variant="brand" label="Back" onclick="{!c.goBackToListView}"/>
</div>
</div>
</div>
<!-- Display Lightning Data Service errors, if any -->
<aura:if isTrue="{!not(empty(v.recordError))}">
<div class="recordError">
<ui:message title="Error" severity="error" closable="true">
{!v.recordError}
</ui:message>
</div>
</aura:if>
</aura:component>
Create a Apex class to fetch Account records
- Create Apex Class “LDSAccountListViewController” to fetch latest 10 Account records from your org.
public with Sharing class LDSAccountListViewController {
@AuraEnabled public static List<Account> findAccounts(){
List<Account> accList = new List<Account>();
accList=[select id, name,owner.name,type,AccountNumber,AnnualRevenue,Phone from Account order by lastModifiedDate DESC Limit 10];
return accList;
}
}
Create a LDSAccountListView lightning Component
In the Developer Console, choose File > New > Lightning Component.
Specify “LDSAccountListView” as the component name and click submit.
<aura:component controller="LDSAccountListViewController" >
<aura:attribute name="accList" type="List" />
<aura:attribute name="menu" type="List" default="View,Edit"/>
<aura:attribute name="currentView" type="String" default="ListView"/>
<aura:attribute name="selectedRecord" type="String" />
<aura:handler name="init" value="{!this}" action="{!c.doInit}"/>
<!--Section for Account List View starts-->
<aura:if isTrue="{!v.currentView =='ListView'}">
<div class="slds-card">
<div class="slds-card__header slds-grid">
<header class="slds-media slds-media_center slds-has-flexi-truncate">
<div class="slds-media__figure">
<lightning:Icon iconName="standard:account" size="large" variant="inverse" />
</div>
<div class="slds-media__body">
<h2> <span class="slds-text-heading_small">Accounts({!v.accList.length})</span> </h2>
</div>
</header>
<div class="slds-no-flex"> <lightning:button variant="brand" label="New Account" /> </div>
</div>
<div class="slds-card__body slds-card__body_inner">
<aura:if isTrue="{!v.accList.length > 0}"> <!--display all accounts--> </aura:if>
</div>
<footer class="slds-card__footer">@sunil02kumar</footer> </div>
</aura:if>
<!--Section for Account List View ends-->
</aura:component>
- Click CONTROLLER in the right side bar of the code editor and add doInit function and save the file
({
doInit : function(component, event, helper){
var action = component.get("c.findAccounts");
action.setCallback(this, function(response) {
var state = response.getState();
if (state === "SUCCESS") {
var apexResponse = response.getReturnValue();
//console.log('***apexResponse:'+ JSON.stringify(apexResponse));
component.set("v.accList", apexResponse);
console.log('********Accounts list view loaded successfully');
}else if(state === "ERROR"){
alert('Problem with connection. Please try again.');
}});
$A.enqueueAction(action);
}
})
- Update the “LDSAccountListViewApp” code with below code and save file.
<aura:application extends="force:slds">
<div class="slds-text-heading_large slds-text-align_center">
Lightning Data Service Demo App
</div>
<c:LDSAccountListView />
</aura:application>
- Update LDSAccountListView lightning Component. Replace <!--display all accounts--> section with below code and save file.
<table class="slds-table slds-table_fixed-layout slds-table_bordered slds-table_cell-buffer">
<thead>
<tr class="slds-text-title--caps">
<th scope="col">Actions</th>
<th scope="col">Name</th>
<th scope="col">Account Number</th>
</tr>
</thead>
<tbody>
<aura:iteration items="{!v.accList}" var="item">
<tr class="slds-hint-parent">
<td scope="row">
<lightning:buttonMenu iconName="utility:threedots" >
<aura:iteration items="{!v.menu}" var="menuItem">
<lightning:menuItem label="{!menuItem}" value="{!item.Id + '---' + menuItem}" onactive="{!c.onSelectMenuItem}"/>
</aura:iteration>
</lightning:buttonMenu>
</td>
<td > {!item.Name}</td>
<td > {!item.AccountNumber}</td>
</tr>
</aura:iteration>
</tbody>
</table>
- Click CONTROLLER in the right side bar of the code editor and add onSelectMenuItem function and save the file.
onSelectMenuItem : function(component, event, helper) {
var selectedOption = event.getSource().get('v.value');
var selectedId = selectedOption.split('---')[0];
console.log('*************selectedId:'+selectedId);
component.set("v.selectedRecord",selectedId);
console.log('*************selectedOption:'+selectedOption);
if (selectedOption.endsWith("View")) {
component.set("v.currentView","RecordView");
}else if(selectedOption.endsWith("Edit")){
component.set("v.currentView","RecordEdit");
}
}
- Update LDSAccountListView lightning Component. Now we are going to display LDSAccountView and LDSAccountEdit components based selection made by user on menu item. Add below markup code in LDSAccountListView component after the section for account list views and save file.
<!--Section for Account record View starts-->
<aura:if isTrue="{!v.currentView =='RecordView'}">
<c:LDSAccountView recordId="{!v.selectedRecord}" currView="{!v.currentView}"/> </aura:if>
<!--Section for Account record View ends-->
<!--Section for Account record edit starts-->
<aura:if isTrue="{!v.currentView =='RecordEdit'}">
<c:LDSAccountEdit recordId="{!v.selectedRecord}" currView="{!v.currentView}" /> </aura:if>
<!--Section for Account record edit ends-->
Update LDSAccountView & LDSAccountView lightning Component
- In LDSAccountEdit component, add action to lightning:button with label as "Back".
<lightning:button variant="brand" label="Back" onclick="{!c.goBackToListView}"/>
- Click CONTROLLER in the right side bar of the code editor and add goBackToListViewfunction and save the file.
goBackToListView : function(component,event,helper){
component.set("v.currView","ListView");
}
- Same way in LDSAccountView, update lightning:button with label as "Back" and add "goBackToListView" JavaScript function to controller.
Let see what we have done so far!!!
So now we are loading account view and edit page using Lightning Data Services. I think this will help you to understand basic concept of Lightning data services.
Below are list of items which can be implemented to for better User experience and for learning.
- You can add deletion of records using LDS.
- When you click on Save in account edit page, it should refresh the list view with latest changes. In this hands on training you have to refresh the browser to see latest values of account record.
- You can use "New Account" to create new account record using LDS.
Hope this will help in basic understanding of Lightning Data Services!!!.
