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ssoftwaressoftware 

setter method for array variable

Hi All,

 

I am not sure if this is possible or not.

 

Budgets is being accessed in a form as input text fields from a visualforce page.

 

public Integer[] Budgets {get;set;}

 

public Integer[] getBudgets() {
    return Budgets;
}

 

public void setBudgets(????) {

       ???

}

 

Is it possible to write a setter method as well? If it is, can someone let me know the syntax? If not possible, can you point me to a workaround? Ideally, I do not want to define 12 individual Integer variables to do the same thing.

 

The visualforce code looks something like this:

 

          <apex:inputText value="{!Budgets[0]}" size="9"/>
          <apex:inputText value="{!Budgets[1]}" size="9"/>
          <apex:inputText value="{!Budgets[2]}" size="9"/>
          <apex:inputText value="{!Budgets[3]}" size="9"/>
          <apex:inputText value="{!Budgets[4]}" size="9"/>
          <apex:inputText value="{!Budgets[5]}" size="9"/>
          <apex:inputText value="{!Budgets[6]}" size="9"/>
          <apex:inputText value="{!Budgets[7]}" size="9"/>
          <apex:inputText value="{!Budgets[8]}" size="9"/>
          <apex:inputText value="{!Budgets[9]}" size="9"/>
          <apex:inputText value="{!Budgets[10]}" size="9"/>
          <apex:inputText value="{!Budgets[11]}" size="9"/>

 

 

Thanks in advance!!!

Best Answer chosen by Admin (Salesforce Developers) 
bob_buzzardbob_buzzard

I guess this means that integers are immutable or similar.  That being the case, our old friend wrapper classes can help here.

 

Here's the controller with a simple integer wrapper:

 

public with sharing class TestController {
public IntWrapper[] Budgets {get;set;}
public Integer x {get;set;}

public TestController() {
    Budgets = new IntWrapper[3];
    for(integer i = 0; i < 3 ; i++) {
        Budgets[i]=new IntWrapper(2000);
    }
    x = 1000;
}

public PageReference save() {
// do something
// return to a different page
    PageReference pg = new PageReference('/home/home.jsp');
    return pg;
}

public class IntWrapper
{
	public Integer val {get; set;}
	public IntWrapper(Integer inVal)
	{
		val=inVal;
	}
}
}

 and the page:

 

<apex:page Controller="TestController">
   <apex:pageMessages />
    <apex:form >
        <apex:pageBlock title="Test" mode="edit">
            <apex:pageBlockButtons location="top">
                <apex:commandButton action="{!save}" value="Save"/>
            </apex:pageBlockButtons>
          <apex:pageBlockSection title="Test" >
          <apex:repeat value="{!budgets}" var="budget">
          <apex:inputText value="{!budget.val}" size="9"/>
          </apex:repeat>
          <apex:inputText value="{!x}" size="9"/>
    </apex:pageBlockSection>
    </apex:pageBlock>
    </apex:form>
</apex:page>

 

All Answers

bob_buzzardbob_buzzard

I wrote a blog post a while ago regarding persisting list edits (lists and arrays being the same thing in Apex) which should give you a few pointers:

 

http://bobbuzzard.blogspot.com/2011/03/persisting-list-edits-in-visualforce.html
ssoftwaressoftware

Hi Bob,

 

Thank you for your quick reply. Your code makes perfect sense, and something very similar worked for me when I am persisting Salesforce standard and custom objects.

 

In this case, I am just trying to do the same with an array variable (or a List) in a controller and it does not seem to work. 

 

For example:

 

Apex Code:

---------------

public with sharing class TestController {
public Integer[] Budgets {get;set;}
public Integer x {get;set;}

public TestController() {
    Budgets = new Integer[3];
    for(integer i = 0; i < 3 ; i++) {
        Budgets[i] = 2000;
    }
    x = 1000;
}

public PageReference save() {
// do something
// return to a different page
    PageReference pg = new PageReference('/home/home.jsp');
    return pg;
}

}

 

Visualforce Code:

-----------------------

<apex:page Controller="TestController">
    <apex:form >
        <apex:pageBlock title="Test" mode="edit">
            <apex:pageBlockButtons location="top">
                <apex:commandButton action="{!save}" value="Save"/>
            </apex:pageBlockButtons>
          <apex:pageBlockSection title="Test" >
          <apex:inputText value="{!budgets[0]}" size="9"/>
          <apex:inputText value="{!budgets[1]}" size="9"/>
          <apex:inputText value="{!budgets[2]}" size="9"/>
          <apex:inputText value="{!x}" size="9"/>
    </apex:pageBlockSection>
    </apex:pageBlock>
    </apex:form>
</apex:page>

 

When I click on "Save" button, the above does not work and the page remains there as before. However, if I remove the three lines consisting of budgets and only keep the line with the "x" variable, clicking on "Save" returns to the home.jsp as expected.

 

Following works:

----------------------

<apex:page Controller="TestController">
    <apex:form >
        <apex:pageBlock title="Test" mode="edit">
            <apex:pageBlockButtons location="top">
                <apex:commandButton action="{!save}" value="Save"/>
            </apex:pageBlockButtons>
          <apex:pageBlockSection title="Test" >
          <apex:inputText value="{!x}" size="9"/>
          </apex:pageBlockSection>
    </apex:pageBlock>
    </apex:form>
</apex:page>

 

What am I doing wrong with the array variable? Please note that since I am not using a Salesforce object field, I have to use inputText instead of inputField.

 

Thanks again!

 
bob_buzzardbob_buzzard

Not sure why it isn't working - maybe something not quite right with dynamic visualforce bindings.

 

There shouldn't be any difference with processing a list of primitives versus a list of sobjects.  What happens if you have:

 

<apex:repeat value={!budgets}" var="budget">
   <apex:inputText value="{!budget}" size="9"/>
   <apex:inputText value="{!budget}" size="9"/>
   <apex:inputText value="{!budget}" size="9"/>
</apex:repeat>
   
<apex:inputText value="{!x}" size="9"/>

 
ssoftwaressoftware

Hi Bob,

 

Thanks for your quick response again. I used the code you sent and I get the following error in the page editor:

 

Error: Unknown property 'budget'

 

<apex:page Controller="TestController">
    <apex:form >
        <apex:pageBlock title="Test" mode="edit">
            <apex:pageBlockButtons location="top">
                <apex:commandButton action="{!save}" value="Save"/>
            </apex:pageBlockButtons>
          <apex:pageBlockSection title="Test" columns="3">
           <apex:repeat value="{!budgets}" var="budget">
           <apex:inputText value="{!budget}" size="9"/>
           <apex:inputText value="{!budget}" size="9"/>
           <apex:inputText value="{!budget}" size="9"/>
            </apex:repeat>
          <apex:inputText value="{!x}" size="9"/>
    </apex:pageBlockSection>
    </apex:pageBlock>
    </apex:form>
</apex:page>
bob_buzzardbob_buzzard

I guess this means that integers are immutable or similar.  That being the case, our old friend wrapper classes can help here.

 

Here's the controller with a simple integer wrapper:

 

public with sharing class TestController {
public IntWrapper[] Budgets {get;set;}
public Integer x {get;set;}

public TestController() {
    Budgets = new IntWrapper[3];
    for(integer i = 0; i < 3 ; i++) {
        Budgets[i]=new IntWrapper(2000);
    }
    x = 1000;
}

public PageReference save() {
// do something
// return to a different page
    PageReference pg = new PageReference('/home/home.jsp');
    return pg;
}

public class IntWrapper
{
	public Integer val {get; set;}
	public IntWrapper(Integer inVal)
	{
		val=inVal;
	}
}
}

 and the page:

 

<apex:page Controller="TestController">
   <apex:pageMessages />
    <apex:form >
        <apex:pageBlock title="Test" mode="edit">
            <apex:pageBlockButtons location="top">
                <apex:commandButton action="{!save}" value="Save"/>
            </apex:pageBlockButtons>
          <apex:pageBlockSection title="Test" >
          <apex:repeat value="{!budgets}" var="budget">
          <apex:inputText value="{!budget.val}" size="9"/>
          </apex:repeat>
          <apex:inputText value="{!x}" size="9"/>
    </apex:pageBlockSection>
    </apex:pageBlock>
    </apex:form>
</apex:page>

 

This was selected as the best answer
ssoftwaressoftware

Hi Bob,

 

Thank you so much for your solution. Now it works exactly the way I wanted. Thanks for your time. I appreciated.:smileyhappy:

 

ssoftware