Sir,

I am experiencing great difficulty with the following Trailhead module:

Lightning Components Basics, Connect to Salesforce with Server-Side Controllers

located at:  https://trailhead.salesforce.com/modules/lex_dev_lc_basics/units/lex_dev_lc_basics_server

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Here is my code:

(campingList.cmp)

<aura:component >
   
 <aura:attribute name="items" type="Camping_Item__c[]"/>
    <aura:attribute name="newItem" type="Camping_Item__c"
                    default="{'sobjectType' : 'Camping_Item__c',
                               'Quantity__c' : 0,
                               'Price__c' : 0}"/>
  <!-- BOXED AREA -->
  <fieldset class="slds-box slds-theme--default slds-container--small">
    <legend id="newCampItemForm" class="slds-text-heading--small
      slds-p-vertical--medium">
      Add Camping Item
    </legend>
    <!-- CREATE NEW CAMPING ITEM FORM -->
    <form class="slds-form--stacked">
      <div class="slds-form-element slds-is-required">
          <div class="slds-form-element__control">
              <ui:inputText aura:id="campItemName" label="Camping Item Name"
                  class="slds-input"
                  labelClass="slds-form-element__label"
                  value="{!v.newItem.Name}"
                  required="true"/>
          </div>
     </div>
     <div class="slds-form-element slds-is-required">
          <div class="slds-form-element__control">
              <ui:inputNumber aura:id="quantity" label="Quantity"
                  class="slds-input"
                  labelClass="slds-form-element__label"
                  value="{!v.newItem.Quantity__c}"
                  required="true"/>
          </div>
      </div>
      <div class="slds-form-element">
          <div class="slds-form-element__control">
              <ui:inputCurrency aura:id="price" label="Price"
                  class="slds-input"
                  labelClass="slds-form-element__label"
                  value="{!v.newItem.Price__c}"/>
          </div>
      </div>
      <div class="slds-form-element">
          <ui:inputCheckbox aura:id="packed" label="Packed?"
              class="slds-checkbox"
              labelClass="slds-form-element__label"
              value="{!v.newItem.Packed__c}"/>
      </div>
      <div class="slds-form-element">
          <ui:button label="Create Camping Item"
              class="slds-button slds-button--brand"
              press="{!c.clickCreateItem}"/>
      </div>
    </form>
    <!-- / CREATE NEW CAMPING ITEM FORM -->
  </fieldset>
        <div class ="slds-card slds-p-top--meduim">
        <header class ="slds-card__header">
            <h3 class = "slds-text-heading--small">Items</h3>
        </header>
        <section class ="slds-card__body">
         <div id="list" class = "row">
             <aura:iteration items="{!v.items}" var="item">
                    <c:campingListItem item="{!item}"/>
                </aura:iteration>
            </div>
        </section>
    </div>
    <!-- i do not think this html is needed any longer
 <ol> 
        <li>Bug Spray</li>
        <li>Bear Repellant</li>
        <li>Goat Food</li>
    </ol>-->
</aura:component>


(campingListController.js)

({
 
    doInit  : function(component, event, helper) {
  var action = component.get("c.getItems");
        action.setCallback(this, function(response){
            var state = response.getState();
          
            if (component.isValid() && state === "SUCCESS") {
          
              
                component.set("v.items", response.getReturnValue());
                
            }
        });
       
        $A.enqueueAction(action);
 },
   
    CreateCamping : function(component, event, helper){
       
        helper.validateFields (component,component.find("name"));
        helper.validateFields (component,component.find("Price"));
        helper.validateFields (component,component.find("Quantity"));
        if(component.get("v.er") === false)
        {    
&nbsp;           //Here I removed the lines and shifted the code to the helperJs      
            console.log('Before:'+Items);           
            helper.CreateCampaign(component,Item);            
             console.log('After:'+Items);                   
        }
 }   
})


(campingListHelper.js)

({
 
    validateFields : function (component,field) {
       
        var nameField = field;
        console.log('yes:'+nameField);
        var expname = nameField.get("v.value");
        if ($A.util.isEmpty(expname)){
           component.set("v.er",true);
           nameField.set("v.errors", [{message:"this field can't be blank."}]);
        }
        else {
            nameField.set("v.errors", null);
        }
    },
   
    CreateCampaign : function (component,Item){
     
        var action = component.get("c.saveItem");
        action.setParams({"CampingItem":Item});
        action.setCallback(this,function(response){
            var state = response.getState();
            if (component.isValid() && state === "SUCCESS") {
                console.log('save');
            }
        });
        $A.enqueueAction(action); 
//Below lines are shifted from controller Js to helperJs
        var Items = component.get("v.items");
&nbsp;       var Item = component.get("v.newItem");
&nbsp;       Items.push(Item);   
        component.set("v.items",Items);
        component.set("v.newItem",{ 'sobjectType': 'Camping_Item__c',
                'Name': '',
                'Quantity__c': 0,
                'Price__c': 0,
                'Packed__c': false });
    }
})

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When I do the Check Challenge, I receive the following error:

Challenge Not yet complete... here's what's wrong:
The Apex controller 'CampingListController' does not exist.

The only thing that I can find in the Forum help documentation is that my code has a campingListController.js and a campingListHelper.js, others have a .js file named camperList.js

Please advise.

Ryan
 

Hi,
I am not able to understand the below question correctly Please help me out. - 
Create a class that has a method accepting two strings. The method searches for contacts that have a last name matching the first string and a mailing postal code (API name: MailingPostalCode) matching the second. It gets the ID and Name of those contacts and returns them.The Apex class must be called 'ContactSearch' and be in the public scope.
The Apex class must have a public static method called 'searchForContacts'.
The 'searchForContacts' method must accept two incoming strings as parameters, find any contact that has a last name matching the first, and mailing postal code matching the second string. The method should return a list of Contact records with at least the ID and Name fields.
The return type for 'searchForContacts' must be 'List<Contact>'.