I am a newbie Apex Developer trying to solve an issue with calling the StandardController.edit() method.
I created a custom Organization__c object for a user to enter info about their company. I want logic in the class to limit t 1 instance of Organization__c, so I over-rode the "New" button on the object to point to a Visualforce page that calls my determinePageRedirect method. If the list of Organization__c is > 0, it returns a PageReference to the edit page using the current ID. If the list is null, I want to call StandardController.edit() to show the regular new page for Organization__c.
Code works as expected when this.existingOrganization.size () > 0. however, I get an error message "cannot call edit() on null object when that list is empty. Seems like I need some mojo on my StandardController instantiation to make this work. Any ideas? Any help is greatly appreciated - this is driving me nuts!
Thanks
Apex Class
public class OrganizationValidation {
//declare a private controller variable
private ApexPages.StandardController controller;
private Organization__c org {get;set;}
//populate list of existingOrganizations
public List<Organization__c> existingOrganizations;
public List<Organization__c> getExistingOrganizations(){
return existingOrganizations;
}
//instatiate class
public OrganizationValidation(){
}
//standard controller constructor
public OrganizationValidation(ApexPages.StandardController pController) {
this.controller = pController;
System.debug('***this.controller: ' +this.controller);
//need StandardController to be aware of current context
this.org = (Organization__c)pController.getRecord();
System.debug('***org: '+ org);
OrganizationRedirect();
}
//Run these methods when we hit the Visualforce page
public PageReference OrganizationRedirect(){
//invoke method to query if there is an Organization__c result
queryOrganizations();
//invoke method to redirect based on if/then
determinePageRedirect();
return null;
}
//PageReference method – button on Visualforce page calls
public PageReference editButtonRedirect() {
PageReference editRedirect;
for(Organization__c org: this.existingOrganizations){
Organization__c myOrg = org;
editRedirect = new PageReference ('/' + myOrg.id + '/e');
}
return editRedirect;
}
public void queryOrganizations(){
//query the orgID
this.existingOrganizations = [Select id, Name From Organization__c];
//System debug
System.debug('***existingOrganizations: '+existingOrganizations);
}
//Method to run if/else statement to redirect page
public PageReference determinePageRedirect(){
PageReference redirectPage;
if (this.existingOrganizations.size() > 0){
redirectPage = new PageReference ('apex/OrganizationRedirect');
}else{
//Show new page
redirectPage = this.controller.edit();
}
return redirectPage;
}
}
I am new to Apex programming and am getting weird little error when i try to attach a PDF to Notes and Attachments. I'm rendering a Visualforce page as a PDF, with an extension to an "EstimateProposal" Apex class. The project compiles fine, but when I run it in the UI, I get an error "EXCEPTION_THROWN|[70,24]|System.VisualforceException: Too many nested getContent calls." Funny thing is, the code block works when I execute it anonymously, just not it's part of my VF controller execution flow. Anyone seen this before or could point me to a resource to fix it? Any help would be greatly appreciated!
****APEX CLASS****
public PageReference attachQuote() {
PageReference pdfPage = Page.GenerateProposal;
pdfPage.getParameters().put('id',this.opp.Id);
Blob pdfBlob = pdfPage.getContent();
Attachment proposalPDF = new Attachment (parentId = this.opp.Id, name=this.opp.name + '.pdf', body = pdfBlob);
I am a newbie Apex Developer trying to solve an issue with calling the StandardController.edit() method.
I created a custom Organization__c object for a user to enter info about their company. I want logic in the class to limit t 1 instance of Organization__c, so I over-rode the "New" button on the object to point to a Visualforce page that calls my determinePageRedirect method. If the list of Organization__c is > 0, it returns a PageReference to the edit page using the current ID. If the list is null, I want to call StandardController.edit() to show the regular new page for Organization__c.
Code works as expected when this.existingOrganization.size () > 0. however, I get an error message "cannot call edit() on null object when that list is empty. Seems like I need some mojo on my StandardController instantiation to make this work. Any ideas? Any help is greatly appreciated - this is driving me nuts!
Thanks
Apex Class
public class OrganizationValidation {
//declare a private controller variable
private ApexPages.StandardController controller;
private Organization__c org {get;set;}
//populate list of existingOrganizations
public List<Organization__c> existingOrganizations;
public List<Organization__c> getExistingOrganizations(){
return existingOrganizations;
}
//instatiate class
public OrganizationValidation(){
}
//standard controller constructor
public OrganizationValidation(ApexPages.StandardController pController) {
this.controller = pController;
System.debug('***this.controller: ' +this.controller);
//need StandardController to be aware of current context
this.org = (Organization__c)pController.getRecord();
System.debug('***org: '+ org);
OrganizationRedirect();
}
//Run these methods when we hit the Visualforce page
public PageReference OrganizationRedirect(){
//invoke method to query if there is an Organization__c result
queryOrganizations();
//invoke method to redirect based on if/then
determinePageRedirect();
return null;
}
//PageReference method – button on Visualforce page calls
public PageReference editButtonRedirect() {
PageReference editRedirect;
for(Organization__c org: this.existingOrganizations){
Organization__c myOrg = org;
editRedirect = new PageReference ('/' + myOrg.id + '/e');
}
return editRedirect;
}
public void queryOrganizations(){
//query the orgID
this.existingOrganizations = [Select id, Name From Organization__c];
//System debug
System.debug('***existingOrganizations: '+existingOrganizations);
}
//Method to run if/else statement to redirect page
public PageReference determinePageRedirect(){
PageReference redirectPage;
if (this.existingOrganizations.size() > 0){
redirectPage = new PageReference ('apex/OrganizationRedirect');
}else{
//Show new page
redirectPage = this.controller.edit();
}
return redirectPage;
}
}
