Tag Archives: Lightning Component

Lightning Button Group

Lightning Component:

<aura:component>
    <!--Component Start--> 
    <div class="slds-m-around_xx-large">
        <lightning:buttonGroup>
            <lightning:button label="Add" variant="Brand" onclick="{!c.handleAdd}" />
            <lightning:button label="Edit" onclick="{!c.handleEdit}" />
            <lightning:button label="Delete" disabled="true" onclick="{!c.handleDelete}" />
        </lightning:buttonGroup>
    </div>
    <!--Component End-->
</aura:component>

Lightning JS Controller:

({
    handleAdd : function(component, event, helper) {
        var selectedButtonLabel = event.getSource().get("v.label");
        alert("Button label: " + selectedButtonLabel);
    },
    
    handleEdit : function(component, event, helper) {
        var selectedButtonLabel = event.getSource().get("v.label");
        alert("Button label: " + selectedButtonLabel);
    },
    
    handleDelete : function(component, event, helper) {
        var selectedButtonLabel = event.getSource().get("v.label");
        alert("Button label: " + selectedButtonLabel);
    }
})

Output:

Invoke Flow From Lightning Component With Input Variables

Using lightning:flow component, we can invoke a flow in Lightning runtime. This component requires API version 41.0 and later. Here is an example to delete all Contact records from an Account using a flow.

Here I’ve created a flow and the flow is invoked by a lightning component, and that lightning component is configured with a QuickAction on Account object.

1. Go to Setup | Quick Find – Search Flows | New Flow

2. Create a variable as “AccountId”

3. Create a sObject Collection Variable as “CollectionOfContacts”

4. Create a Fast Lookup to get Contacts with Account Id

5. Create a Decision to check Account has contacts.

6. Default Outcome in Decision

7. Create Fast Delete to delete Contacts

8. Set the Fast Lookup as a starting element, indicated by the green down arrow. Then, connect the flow element “Fast Lookup” to “Decision” and “Decision” to “Fast Delete”.

9. Create a Lightning Component to invoke the flow.

Lightning component:

<aura:component implements="force:lightningQuickActionWithoutHeader,flexipage:availableForRecordHome,force:hasRecordId">
    
    <!--Custom Styles for Modal Header and Footer--> 
    <aura:html tag="style">
        .cuf-content {
        padding: 0 0rem !important;
        }
        .slds-p-around--medium {
        padding: 0rem !important;
        }       
        .slds-modal__content{
        overflow-y:hidden !important;
        height:unset !important;
        max-height:unset !important;
        }
    </aura:html>
    
    <!--Declare Attributes--> 
    <aura:attribute name="hasError" type="Boolean" default="false"/>
    
    <!--Modal Header-->  
    <div class="modal-header slds-modal__header slds-size_1-of-1">
        <h4 class="title slds-text-heading--medium">Delete Contacts</h4>
    </div>
    <!--End Modal Header-->  
    
    <!--Modal Body-->   
    <div class="slds-modal__content slds-p-around--x-small slds-align_absolute-center slds-size_1-of-1 slds-is-relative">
        <form class="slds-form--stacked">
            <aura:if isTrue="{!!v.hasError}">
                <div class="slds-align_absolute-center">
                    Do you want to delete all contacts?
                </div>
                <aura:set attribute="else">
                    <div>
                        <div class="slds-text-color_error">Error on Contact record deletion.
                            Please forward following error message to your admin:</div>
                    </div>
                </aura:set>
            </aura:if>
            <div>
                <!--Lightning Flow Attribute-->
                <lightning:flow aura:id="deleteContactFlow" onstatuschange="{!c.statusChange}"/>
            </div>
        </form> 
    </div>
    <!--End of Modal Body--> 
    
    <!--Modal Footer-->
    <div class="modal-footer slds-modal__footer slds-size_1-of-1">
        <lightning:button variant="Brand" class="slds-button" label="Confirm" onclick="{!c.handleConfirm}"/>
        <lightning:button variant="Neutral" class="slds-button" label="Cancel" onclick="{!c.handleClose}"/>
    </div>
    <!--End of Modal Footer-->
</aura:component>

Lightning JS Controller:

({
    //Confirm 
    handleConfirm : function(component, event, helper) {
        //Find lightning flow from component
        var flow = component.find("deleteContactFlow");
        //Put input variable values
        var inputVariables = [
            {
                name : "AccountId",
                type : "String",
                value : component.get("v.recordId")
            }
        ];
        //Reference flow's Unique Name
        flow.startFlow("Delete_Contact_From_Account", inputVariables);
    },
    
    //Close the quick action
    handleClose : function(component, event, helper) {
        $A.get("e.force:closeQuickAction").fire();
    },
    
    //Flow Status Change
    statusChange : function (component, event, helper) {
        //Check Flow Status
        if (event.getParam('status') === "FINISHED_SCREEN" || event.getParam('status') === "FINISHED") {
            var toastEvent = $A.get("e.force:showToast");
            toastEvent.setParams({
                title: "Success!",
                message: "Contacts deleted successfully!",
                type: "success"
            });
            toastEvent.fire();
            $A.get("e.force:closeQuickAction").fire();
            $A.get('e.force:refreshView').fire();
        } else if (event.getParam('status') === "ERROR") {
            component.set("v.hasError", true);
        }
    }
})

10. Configure above created lightning component on Account object Quick Action.

11. Add created quick action on Account object page layout.

12. Here is the quick action to delete all contacts.

Get Picklist Values Dynamically In Lightning Radio Group Component

In below example I’m loading Account object Industry picklist field values in Lightning Radio Group.

Apex Controller:

public class SampleController {
    
    @AuraEnabled //Save Account Data
    Public static void createAccount(Account objacc){
        try{
            //Insert Account Record
            insert objacc; 
            
        }catch(Exception e){
            //throw exception message
            throw new AuraHandledException(e.getMessage());
        }
        finally {
        }
    }
    
    @AuraEnabled //get Account Industry Picklist Values
    public static Map<String, String> getIndustry(){
        Map<String, String> options = new Map<String, String>();
        //get Account Industry Field Describe
        Schema.DescribeFieldResult fieldResult = Account.Industry.getDescribe();
        //get Account Industry Picklist Values
        List<Schema.PicklistEntry> pList = fieldResult.getPicklistValues();
        for (Schema.PicklistEntry p: pList) {
            //Put Picklist Value & Label in Map
            options.put(p.getValue(), p.getLabel());
        }
        return options;
    }
}

Lightning Component:

<!--Sample.cmp-->
<aura:component controller="SampleController" implements="flexipage:availableForAllPageTypes,force:appHostable">
    
    <!--Declare Attributes-->
    <aura:attribute name="industryMap" type="Map"/>
    <aura:attribute name="acc" type="Account" default="{'sobjectType':'Account', 
                                                       'Name': '',
                                                       'AccountNumber': '',
                                                       'Email': '',
                                                       'Phone': '', 
                                                       'Industry': ''}"/>
    
    <!--Declare Handler-->
    <aura:handler name="init" value="{!this}" action="{!c.doInit}"/>  
    
    <!--Component Start-->
    <div class="slds-m-around--xx-large">
        <div class="container-fluid">
            <div class="form-group">
                <lightning:input name="accName" type="text" required="true" maxlength="50" label="Account Name" value="{!v.acc.Name}" />
            </div>
            <div class="form-group">
                <lightning:input name="accNumber" type="text" required="true" maxlength="10" label="Account Number" value="{!v.acc.AccountNumber}" />
            </div>
            <div class="form-group">
                <lightning:input name="accEmail" type="email" required="true" maxlength="100" label="Email" value="{!v.acc.Email}" />
            </div>
            <div class="form-group">
                <lightning:input name="accPhone" type="phone" required="true" maxlength="10" label="Phone" value="{!v.acc.Phone}" />
            </div>
            <div class="form-group">
                <!--Lightning radio group component-->
                <lightning:radioGroup name="radioGroup"
                                      label="Industry"
                                      required="true"
                                      options="{!v.industryMap}"
                                      value="{!v.acc.Industry}"
                                      type="radio"/>
            </div>
        </div>
        <br/>
        <lightning:button variant="brand" label="Submit" onclick="{!c.handleAccountSave}" />              
    </div>
    <!--Component End-->
</aura:component>

Lightning Component Controller:

({
    //Load Account Industry Picklist
    doInit: function(component, event, helper) {        
        helper.getIndustryPicklist(component, event);
    },
    
    //handle Account Save
    handleAccountSave : function(component, event, helper) {
        helper.saveAccount(component, event);
    },
    
    //handle Industry Picklist Selection
    handleCompanyOnChange : function(component, event, helper) {
        var indutry = component.get("v.acc.Industry");
        alert(indutry);
    }
})

Lightning Component Helper:

({
    //get Industry Picklist Value
    getIndustryPicklist: function(component, event) {
        var action = component.get("c.getIndustry");
        action.setCallback(this, function(response) {
            var state = response.getState();
            if (state === "SUCCESS") {
                var result = response.getReturnValue();
                var industryMap = [];
                for(var key in result){
                    industryMap.push({label: result[key], value: key});
                }
                component.set("v.industryMap", industryMap);
            }
        });
        $A.enqueueAction(action);
    },
    
    //handle Account Save
    saveAccount : function(component, event) {
        var acc = component.get("v.acc");
        var action = component.get("c.createAccount");
        action.setParams({
            objacc : acc
        });
        action.setCallback(this,function(response){
            var state = response.getState();
            if(state === "SUCCESS"){
                alert('Record is Created Successfully');
            } else if(state === "ERROR"){
                var errors = action.getError();
                if (errors) {
                    if (errors[0] && errors[0].message) {
                        alert(errors[0].message);
                    }
                }
            }else if (status === "INCOMPLETE") {
                alert('No response from server or client is offline.');
            }
        });       
        $A.enqueueAction(action);
    }
})

Output:

Get Current User Name In Lightning Component

Apex Controller:

public class SampleController {
    
    @AuraEnabled
    public static String getUserName() {
        return userinfo.getName();
    }
}

Lightning Component:

<aura:component implements="force:appHostable,flexipage:availableForAllPageTypes" controller="SampleController" access="global" >
    <!--Declare Attributes-->
    <aura:attribute name="currentUserName" type="String"/>
    
    <!--Declare Handler-->
    <aura:handler name="init" value="{!this}" action="{!c.doInit}"/>  
    
    <!--Component Start-->
    <div class="slds-m-around--xx-large">
        <div class="slds-text-heading_large">{!v.currentUserName}</div>
    </div>
    <!--Component End-->
</aura:component>

Lightning JS Controller:

({
    doInit : function(component, event, helper) {
        var action = component.get("c.getUserName");
        action.setCallback(this, function(response){
            var state = response.getState();
            if (state === "SUCCESS") {
                var result = response.getReturnValue();
                component.set("v.currentUserName", result);
            }
        });
        $A.enqueueAction(action);
    }
})

Record Type Selector Custom Lightning Component

Apex Controller:

public class SampleAuraController {
    
    @AuraEnabled
    public string defaultRecordTypeId {get; set;}
    @AuraEnabled
    public Map<Id, String> contactRecordTypes {get; set;}
    
    @AuraEnabled        
    public static SampleAuraController getRecordTypeValues(){
        SampleAuraController obj = new SampleAuraController();
        Map<Id, String> recordtypeMap = new Map<Id, String>();
        //Get all record types of Contact object
        List<Schema.RecordTypeInfo> recordTypeInfoList = Contact.SObjectType.getDescribe().getRecordTypeInfos();
        for(RecordTypeInfo info: recordTypeInfoList) {
            //Check record type is available for current user profile
            if(info.isAvailable()) {
                //Check master record type
                if(info.getName() != 'Master' && info.getName().trim() != ''){
                    recordtypeMap.put(info.getRecordTypeId(), info.getName());
                }
                //Get the default record type for current user profile
                if(info.isDefaultRecordTypeMapping()){
                    obj.defaultRecordTypeId = info.getRecordTypeId();
                }
            }
        }    
        obj.contactRecordTypes = recordtypeMap;
        return obj;
    }
}

Lightning Component:

<aura:component controller="SampleAuraController" implements="flexipage:availableForAllPageTypes,force:appHostable">
    
    <!--Declare Attributes-->
    <aura:attribute name="recordTypeMap" type="Map"/>
    <aura:attribute name="selectedRecordTypeId" type="String"/>
    <!--Declare Handler-->
    <aura:handler name="init" value="{!this}" action="{!c.doInit}"/>  
    
    <!--Component Start-->
    <div class="slds-m-around--xx-large">
        <div class="container-fluid">
            <lightning:radioGroup name="radioGroup"
                                  label="Select Record Type"
                                  required="true"
                                  options="{!v.recordTypeMap}"
                                  value="{!v.selectedRecordTypeId}"
                                  type="radio"/>
        </div>
        <br/>
        <lightning:button variant="brand" label="Submit" onclick="{!c.handleCreateRecord}" />  
    </div>
</aura:component>

JS Controller:

({
    doInit: function(component, event, helper) {        
        var action = component.get("c.getRecordTypeValues");
        action.setCallback(this, function(response) {
            var state = response.getState();
            if (state === "SUCCESS") {
                var result = response.getReturnValue();
                var recordTypes = result.contactRecordTypes;
                var recordtypeMap = [];
                for(var key in recordTypes){
                    recordtypeMap.push({label: recordTypes[key], value: key});
                }
                component.set("v.recordTypeMap", recordtypeMap);
                component.set("v.selectedRecordTypeId", result.defaultRecordTypeId);
            }
        });
        $A.enqueueAction(action);
    },
    
    handleCreateRecord: function(component, event, helper) { 
        var selectedRecordTypeId = component.get("v.selectedRecordTypeId");
        if(selectedRecordTypeId){
            var createRecordEvent = $A.get("e.force:createRecord");
            createRecordEvent.setParams({
                "entityApiName": 'Contact',
                "recordTypeId": selectedRecordTypeId,
            });
            createRecordEvent.fire();
        }
    }
})

Output: