Custom Lookup Lightning Component


Lookup Relationship:


 A Lookup Relationship creates a field that allows users to click a Lookup Icon and select another record from a popup window.
In visual force pages, we create a lookup field simple using  "apex:inputField" component.

But, in lightning components, we can not create a lookup field simply using any component like above. So, here we can find the solution for this please find the Lightning components below to create a lookup field.

Apex Controller:


public class InputLookup {
    @AuraEnabled
    public static SObject loadDefault(String s, String sObjectType) {
        try {
            String query = 'SELECT Id, Name FROM {1} WHERE Id={0}';
            return Database.query(String.format(query, new List<String> { '\''+s+'\'', sObjectType }));
        } catch (Exception e) {       
        } 
        return null;
    }

    @AuraEnabled
    public static List<SObject> searchLookup(String s, String sObjectType) {
        try {
            String query = 'FIND {0} IN Name FIELDS RETURNING {1}(Id,Name) LIMIT 50';
            List<List <SObject>> results = Search.query(String.format(query, new List<String> { '\''+s+'\'', sObjectType }));
            return results[0];
        } catch (Exception e){
        }
        return null;
    }
}

Lightning Component:


<aura:component implements="force:lightningQuickAction,force:appHostable,flexipage:availableForAllPageTypes,force:hasRecordId" access="global" controller="InputLookup">
    <aura:attribute name="searchString" type="String"/>
    <aura:attribute name="searchResults" type="SObject[]"/>
    <aura:attribute name="sObjectType" type="String"/>
    <aura:attribute name="label" type="String"/>
    <aura:attribute name="icon" type="String"/>
    <aura:attribute name="selectedResult" type="SObject"/>
    <aura:attribute name="value" type="Id"/>
    <aura:attribute name="required" type="Boolean" default="false"/>
    <!--<aura:handler name="init" value="{!this}" action="{!c.doInit}" />-->
    <aura:handler name="change" value="{!v.value}" action="{!c.valueChange}"/>                   
    <div aura:id="lookup" class="slds-form-element slds-lookup" data-select="single">
        <label class="slds-form-element__label">
            <aura:if isTrue="{!v.required}"><abbr class="slds-required" title="required">*</abbr> </aura:if>
            {!v.label}
        </label>
        <div id="a" tabindex="-1" onfocusout="{!c.lookup_hide}">
            <div class="slds-form-element__control">
                <div class="slds-input-has-icon slds-input-has-icon--right">
                    <aura:if isTrue="{!empty(v.selectedResult)}">
                        <!--<lightning:icon class="slds-input__icon" iconName="utility:search" size="x-small"/>-->
                        <ui:inputText aura:id="searchInput" class="slds-lookup__search-input slds-input" placeholder="{!'Search '+v.sObjectType}" value="{!v.searchString}" updateOn="keyup" keyup="{!c.lookup_typeahead}" focus="{!c.lookup_show}"/>
                        <aura:set attribute="else">
                            <div class="slds-pill_container">
                                <span class="slds-pill">
                                    <span class="slds-icon_container slds-icon-standard-account slds-pill__icon_container">
                                        <lightning:icon class="slds-icon" iconName="{!v.icon}" size="x-small"/>
                                        <span class="slds-assistive-text">{!v.sObjectType}</span>
                                    </span>
                                    <span class="slds-pill__label">{!v.selectedResult.Name}</span>
                                    <lightning:buttonIcon class="slds-button slds-button--icon slds-pill__remove" iconName="utility:close" variant="bare" onclick="{!c.lookup_unselect}"/>
                                </span>
                            </div>
                        </aura:set>
                    </aura:if>       
                </div>
            </div>
            <div class="slds-lookup__menu">
                <div class="slds-lookup__item--label slds-text-body--small">"{!v.searchString}" in {!v.sObjectType}</div>
                <ul class="slds-lookup__list" role="listbox">
                    <aura:iteration items="{!v.searchResults}" var="r" indexVar="i">
                        <li role="presentation">
                            <a class="slds-lookup__item-action slds-media slds-media--center" id="{!i}" role="option" onclick="{!c.lookup_select}">
                                <div class="slds-media__body">
                                    <div class="slds-lookup__result-text">{!r.Name}</div>
                                </div>
                            </a>
                        </li>
                    </aura:iteration>
                </ul>
            </div>
        </div>
    </div>
</aura:component>

JavaScript Controller:


({
    doInit: function(component, event, helper) {
        var action = component.get("c.loadDefault");
        action.setParams({
            "s": component.get("v.value"),
            "sObjectType": component.get("v.sObjectType")
        })
        action.setCallback(this, function(response) {
            var state = response.getState();
            if (state === "SUCCESS") {
                component.set("v.selectedResult", response.getReturnValue());
component.set("v.value", component.get("v.selectedResult.Id"));
            } else {
                console.log(response.getError());
        component.set("v.value", null);
            }
        });
        $A.enqueueAction(action);
    },
    valueChange: function(component, event, helper) {
        if ($A.util.isEmpty(event.getParam("value"))) {
        return;
        }
        var action = component.get("c.loadDefault");
        action.setParams({
            "s": component.get("v.value"),
            "sObjectType": component.get("v.sObjectType")
        })
        action.setCallback(this, function(response) {
            var state = response.getState();
            if (state === "SUCCESS") {
                component.set("v.selectedResult", response.getReturnValue());
component.set("v.value", component.get("v.selectedResult.Id"));
            } else {
                console.log(response.getError());
        component.set("v.value", null);
            }
        });
        $A.enqueueAction(action);
        event.stopPropagation();
    },
lookup_typeahead: function(component, event, helper) {
        var action = component.get("c.searchLookup");
        action.setAbortable();
        action.setParams({
            "s": component.find("searchInput").get("v.value"),
            "sObjectType": component.get("v.sObjectType")
        })
        action.setCallback(this, function(response) {
            var state = response.getState();
            if (state === "SUCCESS") {
                component.set("v.searchResults", response.getReturnValue());
            } else {
                console.log(response.getError());
            }
        });
        $A.util.addClass(component.find('lookup'), 'slds-is-open');
        $A.enqueueAction(action);
},

    lookup_show: function(component, event, helper) {
        $A.util.addClass(component.find('lookup'), 'slds-is-open');
    },
    lookup_hide: function(component, event, helper) {
        setTimeout(function() {
            $A.util.removeClass(component.find('lookup'), 'slds-is-open');
        }, 1);
    },

    lookup_select: function(component, event, helper) {
component.set("v.selectedResult", component.get("v.searchResults["+event.currentTarget.id+"]"));
component.set("v.value", component.get("v.selectedResult.Id"));
        $A.util.removeClass(component.find('lookup'), 'slds-is-open');
},

    lookup_unselect: function(component, event, helper) {
        component.set("v.selectedResult", null);
        component.set("v.searchString", null);
        component.set("v.searchResults", null);
        component.set("v.value", null);
}
})

Apex Controller:

public class ParentInputLookup {
    @AuraEnabled
    public static List<User> searchUser(String userId){
        List<User> ownerid=new List<User>();
        ownerid=[SELECT id,isActive From User where isActive=true];
        return ownerid;
    }
   /* @AuraEnabled
    public static List<Contact> searchContacts(String contact){
        List<Contact> contactid=new List<Contact>();
        contactid=[SELECT id,Name From Contact ];
        return contactid;
   
    }*/
}

Lightning Component:


<aura:component implements="force:appHostable,flexipage:availableForAllPageTypes" controller="ParentInputLookup">
    <aura:handler name="init" value="{!this}" action="{!c.doSearchUser}" access="public"/>
    <!--<aura:handler name="init" value="{!this}" action="{!c.doSearchContact}" access="public"/>-->
    <aura:attribute name="users" type="User" default="{'sobjectType':'User'}"/>
    <aura:attribute name="contacts" type="Contact" default="{'sobjectType':'Contact'}"/>
    <lightning:card>
        <c:InputLookup label="Users" value="{!v.users.id}" sObjectType="User"/>
    </lightning:card>
    <!--<c:InputLookup label="contacts" value="{!v.contacts.id}" sObjectType="Contact"/>-->
</aura:component>

JavaScript Controller:


({
    doSearchUser: function(component) {
        var action = component.get("c.searchUser");
        action.setParams({
            "userId": component.get("v.users.id")
        });
    },
  /*  doSearchContact: function(component) {
        var action = component.get("c.searchUser");
        action.setParams({
            "contact": component.get("v.contacts.id")
        });
    }*/
})


OutCome 





Comments

Post a Comment

Popular posts from this blog

Configur Docusign For Salesforce

Image
DocuSign For Salesforce The basic steps are : Step 1:Sign in or create a Docusign account ( Refer  sfdcsireesha.blogspot.in --Docusign Integration With Salesforce). Step 2:Connect salesforce to Docusign( Refer  sfdcsireesha.blogspot.in --Docusign Integration With Salesforce). . Steps To Configure Docusign For Salesforce: Step 1:  After installing the DocuSign for Salesforce managed package, select the  DocuSign Admin  tab in Salesforce to bring up the DocuSign Log In view Step 2: Log in to your DocuSign Account:  Use an existing DocuSign admin account.                                                          Or Step 2: Sign up for a Free DocuSign Trial:  This creates a new account with a complementary 30-day free trial.  The free trial account is automatically directed to the DocuSign...
Read more

How To Make DataTable Column Resizable

Image
First, we will use the dummy table shared by the  Lightning Design System . We need to store the original width of the selected column to calculate the new width for which we have defined the oldWidth attribute to store the value. We also need the distance of the selected column width from the left of the screen to identify the start point from where user start to drag the column. We have used mouseStart attribute for the same. We have used two mouse events to identify when user start to drag and when user is dragging the column for adjusting the width. onmousedown  will be fired when user click on the column divider element and ondrag  will be fired when user is dragging th . Component : <aura:component implements="force:appHostable,flexipage:availableForAllPageTypes,flexipage:availableForRecordHome,force:hasRecordId" access="global" >     <aura:attribute name="mouseStart" type="string" />     <aura:attrib...
Read more

Lightning:recordForm - Lightning Data Service

Image
Lightning:recordForm is a very powerful component for editing, viewing and adding a record in lightning and combines both lightning:recordEditForm and lightning:recordViewForm. Here is an example lightning component for lightning:recordForm. Lightning Component:- <aura:component implements="flexipage:availableForRecordHome,force:hasSObjectName,force:hasRecordId" access="global" >     <aura:attribute name="fieldsList" type="String[]" default="['Id', 'Name', 'BillingAddress', 'Phone' , 'Type']"/>     <div class="THIS">                <lightning:recordForm                               recordId="{!v.recordId}"                               objectApiName="{!v.sObjectName}"                     ...
Read more