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Topics#VisualforceQuestion de Blair Burnette
Blair Burnette (Monroe Harding) a posé une question dans #Visualforce
18 nov. 2019, 18:15

Need help with passing parent ID to child record and assigning record type

Hi,

I am attempting to create a visualforce page that will be accessed from a button on a related list. This button will allow users to add multiple child records related to the parent record. 

The parent object is Sessions__c and the child object is Class_Enrollments__c. I want users to be able to click the button and be routed to a VF page where they can add child records on one page.

I am running into three issues:

1) Whenever I try to save the record, I get the following error:

System.DmlException: Insert failed. First exception on row 0; first error: REQUIRED_FIELD_MISSING, Required fields are missing: [Session]: [Session]

Error is in expression '{!insertClass_Enrollments}' in component <apex:commandButton> in page add_class_enrollments: Class.AddingEnrollmentsController.insertClass_Enrollments: line 14, column 1

Class.AddingEnrollmentsController.insertClass_Enrollments: line 14, column 1

So, the parent record ID is not being passed to the child records.

2) I want to assign the record type ID to new child records. Child records will have the same record type for this particular page/button.

3) The "Delete" row function is not working

Below is my controller extension:

Need help with passing parent ID to child record and assigning record type

VF page:

User-added image

Finally, all of this is being accessed via a list button that has the following URL:

/apex/Add_Class_Enrollments?SessionId={!Class_Enrollments__c.SessionId__c}

Help appreciated!

 
1 réponse
  1. Blair Burnette (Monroe Harding)
    18 nov. 2019, 18:16
    I thought pictures would be more helpful, but apparently not. Here are the codes:

    Controller extension:

    public class AddingEnrollmentsController {

        Id SessionId;

        public List<Class_Enrollments__c> class_enrollmentsList {get;set;}

        public Integer rowNum{get;set;}

        

        public AddingEnrollmentsController(ApexPages.StandardSetController controller){

           SessionId=ApexPages.currentPage().getParameters().get('class_enrollments.SessionId');

           class_enrollmentsList = new List<Class_Enrollments__c>();  

           class_enrollmentsList.add(new Class_Enrollments__c());      

        }

        

        public pagereference insertclass_enrollments(){

        insert class_enrollmentsList;

        Pagereference page=new pagereference('/'+SessionId);

        Return page;

    }

        

        public void insertRow(){

            class_enrollmentsList.add(new Class_Enrollments__c()); 

        }

        public void delRow(){

            rowNum = Integer.valueOf(apexpages.currentpage().getparameters().get('index'));

            class_enrollmentsList.remove(rowNum);   

        }

    }

    VF Page:

    <apex:page standardController="Sessions__c" recordSetVar="session" extensions="AddingEnrollmentsController">

        <apex:form >

            <apex:variable var="rowNum" value="{!0}"  />

            <apex:pageBlock >

                <apex:variable var="rowNum" value="{!0}"  />  

                <apex:pageBlockTable value="{!Class_EnrollmentsList}" var="CE">

                    <apex:facet name="footer">

                        <apex:commandLink value="Add" action="{!insertRow}"/>

                    </apex:facet>

                    <apex:column headerValue="Youth Name">

                        <apex:inputField value="{!CE.Youth_Name__c}"/>

                    </apex:column>

                    <apex:column headerValue="Works Wonders Record">

                        <apex:inputField value="{!CE.Works_Wonders_Youth_Name__c}"/>

                    </apex:column>

                    <apex:column headerValue="Attendance">

                        <apex:inputField value="{!CE.Attendance__c}"/>

                    </apex:column>

                     <apex:column headerValue="Participation Note">

                        <apex:inputField value="{!CE.Participation_Note__c}"/>

                    </apex:column>         

                    <apex:column headerValue="Delete" >

                        <apex:commandLink style="font-size:15px; font-weight:bold; text-align:center;color:red;" value="X" action="{!delRow}">

                            <apex:param value="{!rowNum}" name="index" />

                        </apex:commandLink>

                        <apex:variable var="rowNum" value="{!rowNum+1}"/>

                    </apex:column>          

                </apex:pageBlockTable>

                <apex:pageBlockButtons >

                    <apex:commandButton value="Save" action="{!insertClass_Enrollments}"/>

                </apex:pageBlockButtons>

            </apex:pageBlock>

        </apex:form>

    </apex:page>

     
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