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Maps and Relationship Queries in Apex
I have the following relationship query instantiated to a Map<>:
Map<Id, Account> accountsMap = new Map<Id, Account>([ select a.id, a.Name, a.Active_Support_Contract__c, (select s.id, s.status__c, s.status, s.name, s.accountId, s.recordType.name from a.ServiceContracts s) from Account a where a.id in :accountIds]);
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Account account = accountsMap.get(aid);
if (account.ServiceContracts != null) {...} // "Attempt to de-reference a null object"
if (account.ServiceContracts.size() != 0 {...} // "Attempt to de-reference a null object"
for (ServiceContract sc : account.ServiceContracts) {} // "Attempt to de-reference a null object"
I've tried several ways of accessing the Account's ServiceContracts. Everything works fine in my sandbox but when I'm ready to deploy to production, I get the errors above.
The log files are not helpful either.
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- Jan Julian
- March 14, 2012
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Retrieve salesforce instance instead of visualforce instance
From a visualforce page, I need to retrieve our organization's salesforce instance's URL, and not the visual force URL.
For example I need https://cs1.salesforce.com instead of https://c.cs1.visual.force.com
Here's what I've tried so far and the outcome I got:
- Accessed the Site global variable from the VF Page .
<apex:outputText value="{!$Site.Domain}" /> returns null
Sidenote: Everything in $Site.xxx seems to return null. - From the Apex controller
public String getSfInstance() { return ApexPages.currentPage().getHeaders().get('Host'); }
public String getSfInstance() { return URL.getSalesforceBaseUrl().toExternalForm(); }returns c.cs1.visual.force.com and https://c.cs1.visual.force.com, respectively.
Question: How do I retrieve the right instance: https://cs1.salesforce.com?
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- Jan Julian
- February 20, 2012
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Testing email deliverability of scheduled reports and dashboards
Hi,
I was wondering if there's a way to forcefully send an email of scheduled reports and dashboards, instead of waiting for the scheduled refresh time?
Every now and then I need to have an email version of the report/dashboard immediately so I can forward it to colleagues who have no Salesforce access.
Cheers,
Jan
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- Jan Julian
- December 22, 2011
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Multiple page editors in development mode
I'm currently working on a standard controller extension for ServiceContract which is invoked via a custom button on the detail page.
The custom button takes the user to a visualforce page. As I'm the developer however, Salesforce, by default, will automatically show the page editor for the corresponding visualforce page and controller.
As I'm coding/testing out the page and its controller, a couple of annoyances happen which I can't find workarounds for.
1. The visualforce page has a cancel button (which uses the standard cancel action) which upon clicking DOES take the user to the ServiceContract detail page, but the URL remains in the https://Salesforce_instance/apex/myNewPageName, as opposed to https://Salesforce_instance/servicecontractId.
How should I implement the buttons so that the URL will correctly change?
Additionally, the page editor remains after I'm redirected to the detail page (which might be related to the non-changing URL). This, I think, lead to #2
2. Everytime I click the custom button on the ServiceContract detail page - invoking the above controller, another page editor is rendered. If i keep doing that eventually I'd get something like this:
Are these bugs, or am I doing something wrong?
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- Jan Julian
- December 01, 2011
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Displaying messages after triggers run.
I was wondering if it's possible to display messages/notifications to let the user know that a trigger has run.
There's concerns over a trigger automating too much so it would be nice to somehow let the user know that a trigger has made changes.
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- Jan Julian
- November 08, 2011
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