<aura:component implements="flexipage:availableForAllPageTypes,
                            flexipage:availableForRecordHome,
                            force:hasRecordId" access="global" controller="updateOrder">
    <aura:attribute name="disabled" type="boolean" default="false"/>
    <aura:attribute name="statusValue" type="string" />
        <aura:attribute name="orderRecordId" type="string" default="8015g000000PNXEAA4"/>
       <aura:if isTrue="{!v.disabled}">
   
   
    <aura:set attribute="else">
         <lightning:recordEditForm recordId="{!v.orderRecordId}" 
                              objectApiName="Order" 
                              aura:id="recordHandler"
                               onload="{!c.handleLoad}"
                              onsuccess="{!c.handleSuccess}"
                              onsubmit="{!c.handleSubmit}">
          
        <lightning:messages />
          <lightning:outputField fieldName="AccountId" />
        <lightning:outputField fieldName="ContractId" />
        <lightning:inputField fieldName="Name" />
        <lightning:inputField fieldName="Status__c" value="{!v.statusValue}" aura:id="statusFld"/>
        
        <div class="slds-wrap slds-text-align_center">
            <lightning:button disabled="{!v.disabled}"  type="submit" name="save" label="Save" />
             <lightning:button type="button" name="Approve" label="Approve" onclick="{!c.approveMethod}" />
            <!-- <lightning:button type="button" name="Reassign" label="Reassign" />   -->         
            <lightning:button type="button" variant="neutral" label="Cancel" title="Cancel" onclick="{!c.handleCancel}" />
            
        </div>  
    </lightning:recordEditForm>
           </aura:set>
        <lightning:recordViewForm recordId="{!v.orderRecordId}"
                                  objectApiName="Order">
        <div class="slds-box">
         <lightning:outputField fieldName="AccountId" />
        <lightning:outputField fieldName="ContractId" />
        <lightning:outputField fieldName="Name" />
        <lightning:outputField fieldName="Status__c" value="{!v.statusValue}" aura:id="statusFld"/>
        
        </div>
    </lightning:recordViewForm>
    </aura:if>
</aura:component>

({
	approveMethod: function (component, event, helper) {
        component.set('v.statusValue','Approved');
       
       
        var action = component.get("c.updateStatus");
        action.setParams({ orderId : component.get("v.orderRecordId") });
        action.setCallback(this, function(response) {
            var state = response.getState();
            alert(state);
            if (state === "SUCCESS") {
                alert("From server: " + response.getReturnValue());
            }
            else if (state === "INCOMPLETE") {
                // do something
            }
            else if (state === "ERROR") {
                var errors = response.getError();
                console.log(JSON.stringify(errors));
                if (errors) {
                    if (errors[0] && errors[0].message) {
                        console.log("Error message: " + 
                                 errors[0].message);
                    }
                } else {
                    console.log("Unknown error");
                }
            }
        });
 
        $A.enqueueAction(action);
        component.set("v.disabled",true);
        
    },
    handleLoad: function (component, event, helper) {
        console.log('it is loading');
    },
      handleSubmit: function (component, event, helper) {
        console.log('handleSubmit');
        },
   handleSuccess: function (component, event, helper) {
        console.log('handleSuccess');
    }
    
    

})

public class updateOrder {
@AuraEnabled
    public static Order updateStatus(string orderId){
        
        Order oOrder = [SELECT Id,Name,Status From Order WHERE Id =:orderId ];
            oOrder.Status__c = 'Approved';
         update oOrder;
        return oOrder;
        
    }
}