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brielea1984brielea1984 

Creating Multiple Child Records Input Screen - Pass Multiple Values from Parent in PageReference

I have two objects - Demographics and Quotas. Both objects also have a lookup to a third object called Qualification. I have used Visualforce and Apex to create a multi-entry screen for adding multiple Quotas to a Demographic at once. I have successfullly passed the Demographics Id directly into the Demographics lookup by using both the controller and the custom button URL. I haven't figured out yet what to write in the controller to pass a second parameter from the URL into the input field. I tried a few things, but just removed them since they weren't working. Below is what I'm working with.

Objects
Demographic: Demographic__c
Quota: Quota__c
Qualification: Qualification_Library__c

Fields
The Qualification field on both Demographics and Quotas is Qualification__c

Visualforce Page 
<apex:page controller="addDemoController" tabstyle="Quota__c">
  <apex:form >
    <apex:pageBlock title="Define Demographic Quotas">
      <apex:pageBlockTable value="{!wrappers}" var="wrapper" id="wtable">
        <apex:column headerValue="IDent" rendered="false">
          <apex:outputText value="{!wrapper.ident}"/>
        </apex:column>  
        <apex:column headerValue="Condition">
          <apex:inputField value="{!wrapper.quota.Condition__c}"/>
        </apex:column>
        <apex:column headerValue="Option">
          <apex:inputField value="{!wrapper.quota.Condition_Option__c}"/>
        </apex:column>
        <apex:column headerValue="Demographic">
          <apex:inputField value="{!wrapper.quota.Demographic__c}"/>
        </apex:column>
        <apex:column headerValue="Qualification">
          <apex:inputField value="{!wrapper.quota.Qualification__c}"/>
        </apex:column>                  
        <apex:column headerValue="Action">
          <apex:commandButton value="Delete" action="{!delWrapper}" rerender="wtable">
            <apex:param name="toDelIdent" value="{!wrapper.ident}" assignTo="{!toDelIdent}"/>
          </apex:commandButton>
        </apex:column> 
      </apex:pageBlockTable>
      <apex:commandButton value="Add Row" action="{!addRows}" rerender="wtable">
        <apex:param name="addCount" value="1" assignTo="{!addCount}"/>
      </apex:commandButton>    
      <apex:commandButton value="Save" action="{!save}"/>
    </apex:pageBlock>
  </apex:form>    
</apex:page>
Apex Class 
public class addDemoController 

{
     public List<quotaWrapper> wrappers {get; set;}
     public static Integer toDelIdent {get; set;}
     public static Integer addCount {get; set;}
     private Integer nextIdent=0;
  
     public addDemoController()
     {
          wrappers=new List<quotaWrapper>();
          for (Integer idx=0; idx<1; idx++)
              {
               wrappers.add(new quotaWrapper(nextIdent++));
              }
     }
  
     public void delWrapper()
     {
          Integer toDelPos=-1;
          for (Integer idx=0; idx<wrappers.size(); idx++)
              {
                   if (wrappers[idx].ident==toDelIdent)
                   {
                    toDelPos=idx;
                   }
              }
           
          if (-1!=toDelPos)
              {
               wrappers.remove(toDelPos);
              }
     }
      
     public void addRows()
     {
          for (Integer idx=0; idx<addCount; idx++)
          {
           wrappers.add(new quotaWrapper(nextIdent++));
          }
     }
      
   public PageReference save()
   {
      Id eventId;
      eventId = ApexPages.currentPage().getParameters().get('eventId');
      List<Quota__c> quotas=new List<Quota__c>();
        for (quotaWrapper wrap : wrappers)
        {
         quotas.add(wrap.quota);
        }
       
      insert quotas;
       
      return new PageReference('/' + ApexPages.currentPage().getParameters().get('eventId'));
    
   }
  
   public class quotaWrapper
   {
    public Quota__c quota {get; private set;}
    public Integer ident {get; private set;}
     
      public quotaWrapper(Integer inIdent)
      {
       ident=inIdent;
       quota=new Quota__c(Demographic__c =ApexPages.currentPage().getParameters().get('eventId'));
      }
   }
 
}

Button
(URL) 
/apex/AddQuotaSelect?eventId={!Demographic__c.Id}

Any help in getting that qualification id to populate in the Qualification__c field for each row would be much appreciated

Here's what it looks like in action, just need that one field autofilled!
User-added image

 
Best Answer chosen by brielea1984
brielea1984brielea1984
Don't know if it's the most efficent code, but I got it to work thanks to seeing how you called 2 variables in that final bit (just needed a comma!).

Here's the final code if anyone is interested or has suggestions on a cleaner, shorter, more efficient way to write it 
public class addDemoController 

{
     public List<quotaWrapper> wrappers {get; set;}
     public static Integer toDelIdent {get; set;}
     public static Integer addCount {get; set;}
     private Integer nextIdent=0;
  
     public addDemoController()
     {
          wrappers=new List<quotaWrapper>();
          for (Integer idx=0; idx<1; idx++)
              {
               wrappers.add(new quotaWrapper(nextIdent++));
              }
     }
  
     public void delWrapper()
     {
          Integer toDelPos=-1;
          for (Integer idx=0; idx<wrappers.size(); idx++)
              {
                   if (wrappers[idx].ident==toDelIdent)
                   {
                    toDelPos=idx;
                   }
              }
           
          if (-1!=toDelPos)
              {
               wrappers.remove(toDelPos);
              }
     }
      
     public void addRows()
     {
          for (Integer idx=0; idx<addCount; idx++)
          {
           wrappers.add(new quotaWrapper(nextIdent++));
          }
     }
      
   public PageReference save()
   {
      Id eventId;
      Id qualId;
      eventId = ApexPages.currentPage().getParameters().get('eventId');
      qualId = ApexPages.currentPage().getParameters().get('qualId');
      List<Quota__c> quotas=new List<Quota__c>();
        for (quotaWrapper wrap : wrappers)
        {
         quotas.add(wrap.quota);
        }
       
      insert quotas;
       
      return new PageReference('/' + ApexPages.currentPage().getParameters().get('eventId'));
      return new PageReference('/' + ApexPages.currentPage().getParameters().get('qualId'));    
   }
  
   public class quotaWrapper
   {
    public Quota__c quota {get; private set;}
    public Integer ident {get; private set;}
     
      public quotaWrapper(Integer inIdent)
      {
       ident=inIdent;
       quota=new Quota__c(Demographic__c =ApexPages.currentPage().getParameters().get('eventId'), Qualification__c =ApexPages.currentPage().getParameters().get('qualId'));
      }
   }
 
}

 

All Answers

viruSviruS
Try below one 

public class addDemoController 

{
     public List<quotaWrapper> wrappers {get; set;}
     public static Integer toDelIdent {get; set;}
     public static Integer addCount {get; set;}
     private Integer nextIdent=0;
  
     public addDemoController()
     {
          wrappers=new List<quotaWrapper>();
           Id eventId =  ApexPages.currentPage().getParameters().get('eventId')
           Id qualLibraryId = null;
           for(Demographic__c demo:[Select id ,Qualification_Library__c from Demographic__c where id = eventId]){
               qualLibraryId = demo.Qualification_Library__c;
           }
           
          for (Integer idx=0; idx<1; idx++)
              {
               wrappers.add(new quotaWrapper(nextIdent++));
              }
     }
  
     public void delWrapper()
     {
          Integer toDelPos=-1;
          for (Integer idx=0; idx<wrappers.size(); idx++)
              {
                   if (wrappers[idx].ident==toDelIdent)
                   {
                    toDelPos=idx;
                   }
              }
           
          if (-1!=toDelPos)
              {
               wrappers.remove(toDelPos);
              }
     }
      
     public void addRows()
     {
          for (Integer idx=0; idx<addCount; idx++)
          {
           wrappers.add(new quotaWrapper(nextIdent++));
          }
     }
      
   public PageReference save()
   {
      Id eventId;
      eventId = ApexPages.currentPage().getParameters().get('eventId');
      List<Quota__c> quotas=new List<Quota__c>();
        for (quotaWrapper wrap : wrappers)
        {
         quotas.add(wrap.quota);
        }
       
      insert quotas;
       
      return new PageReference('/' +eventId);
    
   }
  
   public class quotaWrapper
   {
    public Quota__c quota {get; private set;}
    public Integer ident {get; private set;}
     
      public quotaWrapper(Integer inIdent)
      {
       ident=inIdent;
       quota=new Quota__c(Demographic__c = eventId,Qualification_Library__c = qualLibraryId);
      }
   }
 
}

 
brielea1984brielea1984
thank you for your help!

Unfortunately this has not worked yet. There were a few errors (colon needed here, semi colon there, and the field is Qualification__c for the objects). Once I got those sorted, I got this error: Error: addDemoController Compile Error: Variable does not exist: eventId at line 73 column 44

Here's an image of the screen
User-added image

And the updated code 
public class addDemoController 

{
     public List<quotaWrapper> wrappers {get; set;}
     public static Integer toDelIdent {get; set;}
     public static Integer addCount {get; set;}
     private Integer nextIdent=0;
  
     public addDemoController()
     {
          wrappers=new List<quotaWrapper>();
           Id eventId =  ApexPages.currentPage().getParameters().get('eventId');
           Id qualLibraryId = null;
           for(Demographic__c demo:[Select id ,Qualification__c from Demographic__c where id =: eventId]){
               qualLibraryId = demo.Qualification__c;
           }
           
          for (Integer idx=0; idx<1; idx++)
              {
               wrappers.add(new quotaWrapper(nextIdent++));
              }
     }
  
     public void delWrapper()
     {
          Integer toDelPos=-1;
          for (Integer idx=0; idx<wrappers.size(); idx++)
              {
                   if (wrappers[idx].ident==toDelIdent)
                   {
                    toDelPos=idx;
                   }
              }
           
          if (-1!=toDelPos)
              {
               wrappers.remove(toDelPos);
              }
     }
      
     public void addRows()
     {
          for (Integer idx=0; idx<addCount; idx++)
          {
           wrappers.add(new quotaWrapper(nextIdent++));
          }
     }
      
   public PageReference save()
   {
      Id eventId;
      eventId = ApexPages.currentPage().getParameters().get('eventId');
      List<Quota__c> quotas=new List<Quota__c>();
        for (quotaWrapper wrap : wrappers)
        {
         quotas.add(wrap.quota);
        }
       
      insert quotas;
       
      return new PageReference('/' +eventId);
    
   }
  
   public class quotaWrapper
   {
    public Quota__c quota {get; private set;}
    public Integer ident {get; private set;}
     
      public quotaWrapper(Integer inIdent)
      {
       ident=inIdent;
       quota=new Quota__c(Demographic__c = eventId,Qualification__c = qualLibraryId);
      }
   }
 
}

Thoughts?
brielea1984brielea1984
Don't know if it's the most efficent code, but I got it to work thanks to seeing how you called 2 variables in that final bit (just needed a comma!).

Here's the final code if anyone is interested or has suggestions on a cleaner, shorter, more efficient way to write it 
public class addDemoController 

{
     public List<quotaWrapper> wrappers {get; set;}
     public static Integer toDelIdent {get; set;}
     public static Integer addCount {get; set;}
     private Integer nextIdent=0;
  
     public addDemoController()
     {
          wrappers=new List<quotaWrapper>();
          for (Integer idx=0; idx<1; idx++)
              {
               wrappers.add(new quotaWrapper(nextIdent++));
              }
     }
  
     public void delWrapper()
     {
          Integer toDelPos=-1;
          for (Integer idx=0; idx<wrappers.size(); idx++)
              {
                   if (wrappers[idx].ident==toDelIdent)
                   {
                    toDelPos=idx;
                   }
              }
           
          if (-1!=toDelPos)
              {
               wrappers.remove(toDelPos);
              }
     }
      
     public void addRows()
     {
          for (Integer idx=0; idx<addCount; idx++)
          {
           wrappers.add(new quotaWrapper(nextIdent++));
          }
     }
      
   public PageReference save()
   {
      Id eventId;
      Id qualId;
      eventId = ApexPages.currentPage().getParameters().get('eventId');
      qualId = ApexPages.currentPage().getParameters().get('qualId');
      List<Quota__c> quotas=new List<Quota__c>();
        for (quotaWrapper wrap : wrappers)
        {
         quotas.add(wrap.quota);
        }
       
      insert quotas;
       
      return new PageReference('/' + ApexPages.currentPage().getParameters().get('eventId'));
      return new PageReference('/' + ApexPages.currentPage().getParameters().get('qualId'));    
   }
  
   public class quotaWrapper
   {
    public Quota__c quota {get; private set;}
    public Integer ident {get; private set;}
     
      public quotaWrapper(Integer inIdent)
      {
       ident=inIdent;
       quota=new Quota__c(Demographic__c =ApexPages.currentPage().getParameters().get('eventId'), Qualification__c =ApexPages.currentPage().getParameters().get('qualId'));
      }
   }
 
}

 
This was selected as the best answer