Upload Files in Lightning Component

Post Views: 493

Hey guys, In this post we are going to learn about how to upload files in Salesforce lightning component.

In this example we will attached the files from Custom sObject by help of wrapper apex class in lightning component.

Files we used in this post example:-

File Name	File Type	Description
uploadAttachmentCmp.cmp	Lightning Component	It is used to user interface display upload button and toast success message on browser.
uploadAttachmentCmpConroller.js	JavaScript Controller File	It is used for client side javascript function that is communicate to apex class method.
uploadFileController.apxc	Apex Class Controller	Upload the file into database server
Custom Object:- childObjTrigger__c	Custom Object	Upload the attachment files on custom sObject Files & Attechment section.

Final Output

Other post that would you like to learn

How to Create a Customizable Tabs for Salesforce Lightning Component Page Using Component Controller JavaScript
How to Show/Hide a Custom Loading Spinner Image in Salesforce Lightning Component
How to validate child component from parent component on click button using aura method in lightning component
Dynamic custom dependent picklist in lightning component
Adding a Custom Style CSS for Specific Role & Profile in Salesforce
How to fetch picklist values from apex controller in lightning component

Note:- Custom sObject >> childObjTrigger__c

You need to change custom sObject name with your custom sObject name.

Step 1:- Create Lightning Component : uploadAttachmentCmp.cmp

From Developer Console >> File >> New >> Lightning Component

uploadAttachmentCmp.cmp [Lightning Component File]

   <aura:component controller="uploadFileController" implements="force:appHostable,flexipage:availableForAllPageTypes,flexipage:availableForRecordHome,force:hasRecordId,forceCommunity:availableForAllPageTypes,force:lightningQuickAction" access="global" >
	<aura:attribute name="wrapListItems" type="childObjTrigger__c[]"/>
       <aura:handler name="init" value="{!this}" action="{!c.doInit}"/>
    
       <aura:attribute name="accept" type="List" default="['.jpg', '.jpeg','.pdf']"/>
       <aura:attribute name="multiple" type="Boolean" default="true"/>
       <aura:attribute name="disabled" type="Boolean" default="false"/>   
    
    <div class="slds">        
        
        <table class="slds-table slds-table--bordered slds-table--col-bordered" style="border-collapse:collapse;">
            <thead> 
                <tr>                    
                    <th>Attachment</th>                   
                </tr>
            </thead>
            <tbody>
                <aura:iteration items="{!v.wrapListItems}" var="childObjVar" indexVar="index">
                    <tr id="{!childObjVar.recordId}">                        
                        <td>
                            <lightning:fileUpload
                              multiple="{!v.multiple}" 
                              accept="{!v.accept}"
                              recordId="{!childObjVar.recordId}" 
                              onuploadfinished="{!c.uploadFileAction}" disabled="{!v.disabled}"/>
                        </td>
                    </tr>
                </aura:iteration>
            </tbody>
        </table>        
        
    </div>
    
   </aura:component>

<aura:component controller="uploadFileController" implements="force:appHostable,flexipage:availableForAllPageTypes,flexipage:availableForRecordHome,force:hasRecordId,forceCommunity:availableForAllPageTypes,force:lightningQuickAction" access="global" >

<aura:attribute name="wrapListItems" type="childObjTrigger__c[]"/>

<aura:handler name="init" value="{!this}" action="{!c.doInit}"/>

<aura:attribute name="accept" type="List" default="['.jpg', '.jpeg','.pdf']"/>

<aura:attribute name="multiple" type="Boolean" default="true"/>

<aura:attribute name="disabled" type="Boolean" default="false"/>

<thead>

<tr>

<th>Attachment</th>

</tr>

</thead>

<tbody>

<aura:iteration items="{!v.wrapListItems}" var="childObjVar" indexVar="index">

<td>

<lightning:fileUpload

multiple="{!v.multiple}"

accept="{!v.accept}"

recordId="{!childObjVar.recordId}"

onuploadfinished="{!c.uploadFileAction}" disabled="{!v.disabled}"/>

</td>

</tr>

</aura:iteration>

</tbody>

</table>

</div>

</aura:component>

Step 2:- Create Lightning Component : uploadAttachmentCmpController.js

From Developer Console >> File >> New >> Lightning Component >> JavaScript Controller

uploadAttachmentCmpController.js [JavaScript Controller]

   ({
    doInit : function(component, event, helper) {
        var action = component.get("c.childObjWrapMethod"); 
        
        action.setCallback(this, function(response){
            var state = response.getState();
            
            if(state=='SUCCESS'){
                var result = response.getReturnValue();                
                component.set('v.wrapListItems',result);
            }
        });
        $A.enqueueAction(action);
    },
    
    uploadFileAction : function(component, event, helper) {
        var uploadedFiles = event.getParam("files");
        var documentId = uploadedFiles[0].documentId;
        var fileName = uploadedFiles[0].name;
        var toastEvent = $A.get("e.force:showToast");
        toastEvent.setParams({
            "title": "Success!",   
            "type": "success",
            "message": "File "+fileName+" Uploaded successfully."
        });
        toastEvent.fire();
        $A.get('e.force:refreshView').fire();         
       },
   })

({

doInit : function(component, event, helper) {

var action = component.get("c.childObjWrapMethod");

action.setCallback(this, function(response){

var state = response.getState();

if(state=='SUCCESS'){

var result = response.getReturnValue();

component.set('v.wrapListItems',result);

}

});

$A.enqueueAction(action);

uploadFileAction : function(component, event, helper) {

var uploadedFiles = event.getParam("files");

var documentId = uploadedFiles[0].documentId;

var fileName = uploadedFiles[0].name;

var toastEvent = $A.get("e.force:showToast");

toastEvent.setParams({

"title": "Success!",

"type": "success",

"message": "File "+fileName+" Uploaded successfully."

});

toastEvent.fire();

$A.get('e.force:refreshView').fire();

})

Step 3:- Create Lightning Application : uploadFileController.apxc

From Developer Console >> File >> New >> Apex Class

uploadFileController.apxc [Apex Class Controller]

   public class cloneFilesFromOldCaseToNew {
    
    public class wrapperChildObjClass{                
        @AuraEnabled
        public Id recordId;        
        
        public wrapperChildObjClass(Id recordId){            
            this.recordId = recordId;                
        }
    }
    
    
    @AuraEnabled
    public static List<wrapperChildObjClass> childObjWrapMethod(){
      List<wrapperChildObjClass> wrapObj = new List<wrapperChildObjClass>();   
       List<childObjTrigger__c> childObjList = [Select Id, Name From childObjTrigger__c limit 1];         
        for(childObjTrigger__c childObjWrp: childObjList){
            wrapObj.add(new wrapperChildObjClass(childObjWrp.Id));
        }     
        return wrapObj;
     }    
   }

public class cloneFilesFromOldCaseToNew {

public class wrapperChildObjClass{

@AuraEnabled

public Id recordId;

public wrapperChildObjClass(Id recordId){

this.recordId = recordId;

}

@AuraEnabled

public static List<wrapperChildObjClass> childObjWrapMethod(){

List<wrapperChildObjClass> wrapObj = new List<wrapperChildObjClass>();

List<childObjTrigger__c> childObjList = [Select Id, Name From childObjTrigger__c limit 1];

for(childObjTrigger__c childObjWrp: childObjList){

wrapObj.add(new wrapperChildObjClass(childObjWrp.Id));

}

return wrapObj;

}

Further post that would you like to learn

3 thoughts on “Upload Files in Lightning Component”

sharegiants

October 21, 2020 at 7:03 am

nice its very helpfull…!!!!!
Ahsan khan

November 18, 2020 at 1:51 pm

Good Information about the topic
kashifhossain

December 3, 2020 at 4:30 pm

In this blog I get a great post sir please also visit my blog I post great content https://techkashif.com/slip-part-2-ullu-web-series/

Upload Files in Lightning Component

Files we used in this post example:-

Note:- Custom sObject >> childObjTrigger__c

uploadAttachmentCmp.cmp [Lightning Component File]

uploadAttachmentCmpController.js [JavaScript Controller]

uploadFileController.apxc [Apex Class Controller]

Related Topics

3 thoughts on “Upload Files in Lightning Component”

Leave a Comment Cancel reply

Files we used in this post example:-

Note:- Custom sObject >> childObjTrigger__c

uploadAttachmentCmp.cmp [Lightning Component File]

uploadAttachmentCmpController.js [JavaScript Controller]

uploadFileController.apxc [Apex Class Controller]

Related Topics

3 thoughts on “Upload Files in Lightning Component”

Leave a Comment Cancel reply

Contribute to Support If Some Value Added in Your Project or Website