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John NeffJohn Neff 

Help with Compile Error: DML requires SObject or SObject list type: List<String>

Hello, 

I am trying to add UPDATE functionality to a controller and am getting the error: DML requires SObject or SObject list type: List<String>

However my variable is set up like this: public List<String> campaigns {get;set;}

I am not sure how to achieve the proper syntax here, and was hoping that someone out there in developerland would be able to help me!

Here is my (broken) controller: 
  
public with sharing class QualOpController
{

public List <Opportunity> listOfOpty {get;set;}
public List<String> campaigns {get;set;}

public PageReference saveOp(){
    UPDATE campaigns;
    return null;
    }

 public String getName(){
        return 'QualOpController';
        }

public void load() 
{
  campaigns= new List<String>();
  listOfOpty = [Select id, name, CreatedDate, StageName, Vert_Med__c, Company_Name__c, Next_Step__c, Vertical__c, Weeks_Live__c, Days_Since_Last_Modified__c, Contract_SENT__c, NextStep, LeadSource, Probability, Spend_Last_Week__c, Spend_Last_30_Days__c, Owner_Name__c, Revenue_All_Time__c from Opportunity WHERE Pipeline_Oppty__c = TRUE ]; 
  
  Set<String> campaignSet = new Set<String>();
  for (Opportunity j : listOfOpty)
      campaignSet.add(j.Vert_Med__c);
      
      for (String campaign : campaignSet) 
      {
            campaigns.add(campaign);
      }
      campaigns.sort();
    }
}

Thanks in advance!

John

 
deepak balur 19deepak balur 19
Hi Jeff; Sorry my bad, I know I mentioned this in the earlier post, but what is the thought behind lines 22-30 in your code. You can perform DML operations only on List Object not on Sets of Strings.That is why you are getting the error. I would suggest you put back update listOfOpty and set the debug log to see what is happening behind the scenes as your earlier post mentioned that it did not update opportunities at all.
John NeffJohn Neff
Thanks for your help Deepak!

Lines 22-30 dynamically group the querry results by a picklist value on the Opportunity Record. I used this article as a template: http://blog.jeffdouglas.com/2011/03/02/dynamically-group-display-query-results/


Here is how it is output in VF: 
  
<apex:form >
    <apex:pageBlock title="{!camp}" mode="inlineedit">
        <table cellpadding="5" style="border-collapse: collapse;table-layout:fixed" width="1080" border="1" class="list sortable" >
                
          
                <tr class="headerRow">
                              <th style="background-color: #C6D4D4; color: #040404" width="100">
                        <b>Opportunity Name</b>
                    </th>
                    <th style="background-color: #C6D4D4; color: #040404" width="100">
                        <b>Company Name</b>
                    </th>
                    <th style="background-color: #C6D4D4; color: #040404" width="80">
                        <b>Contract Sent</b>
                                   
                    
                    </th>
                     <th style="background-color: #C6D4D4; color: #040404" width="50">
                        <b>Days Idle</b>
                    </th>
                                 
                    <th style="background-color: #C6D4D4; color: #040404" width="70">
                        <b>Created</b>
                    </th>
        <th style="background-color: #C6D4D4; color: #040404" width="450">
                        <b>Next Step</b>
                    </th>
                  
                    <th style="background-color: #C6D4D4; color: #040404" width="50">
                        <b><apex:commandLink reRender="button" onclick="window.open('/apex/Probability_Guide','','width=500,height=300')" id="button">Prob%</apex:commandLink></b>
                    </th>
                    <th style="background-color: #C6D4D4; color: #040404" width="100">
                        <b>Owner</b>
                    </th>
                    <th style="background-color: #C6D4D4; color: #040404" width="100">
                        <b>Stage</b>
                    </th>
                
                </tr>
                           
                 <apex:repeat value="{!listOfOpty}" var="cs"> 
                 
                  <apex:outputPanel layout="none" rendered="{!IF(camp=cs.Vert_Med__c,true,false)}" >
                  
                      <tr class="dataRow even first">
                                  
                            <td width="100">
                                <a href="https://na2.salesforce.com/{!cs.id}">{!cs.name}</a>
                            </td>  
                              <td width="100">
                                {!cs.Company_Name__c}
                            </td> 
                                <td width="80">
                            
                               <apex:outputField value="{!cs.Contract_SENT__c}" >
                                     <apex:inlineEditSupport event="ondblclick" showOnEdit="saveButton, cancelButton" />
                                </apex:outputField>
                            </td>
                          
                           
                            <td width="50">
                                {!cs.Days_Since_Last_Modified__c}
                            </td>
                            <td width="70">
                                 {!MONTH(DATEVALUE(cs.CreatedDate))}/{!DAY(DATEVALUE(cs.CreatedDate))}/{!YEAR(DATEVALUE(cs.CreatedDate))}
                            </td>
                            
                            <td width="450">
                                <apex:outputField value="{!cs.Next_Step__c}" >
                                     <apex:inlineEditSupport event="ondblclick" showOnEdit="saveButton, cancelButton" />
                                </apex:outputField>
                            </td>
                
                           
                             <td width="50">
                                <apex:outputField value="{!cs.Probability}" >
                                     <apex:inlineEditSupport event="ondblclick" showOnEdit="saveButton, cancelButton" />
                                </apex:outputField>
                            </td>
                            <td width="100">
                                {!cs.Owner_Name__c}
                            </td>
                            <td width="100">
                                {!cs.StageName}
                            </td>
                          
                        </tr>
                    
                      </apex:outputPanel>
                     </apex:repeat>
                      
                     </table>
                     
                     <apex:commandButton action="{!saveOp}" value="Update Opptys"/>  
    </apex:pageBlock>
    </apex:form>

Could there be a problem with my VF markup?
 
John NeffJohn Neff
could the outpanel be the problem?