Can't Relate Contact and Opportunity in SuiteCRM / SugarCRM CE - rest

Question

I'm working on a script to import data into SuiteCRM / SugarCRM CE. I need to create a Contact and an Opportunity. I then need to relate the two.
I have a many to many relationship between Contacts and Opportunities. Each contact should be able to create multiple opportunities. Each opportunity should be able to be assigned to multiple contacts.
When I run the code it says "1 Relationship(s) created", but when I check Suite there's nothing listed under the contact or opportunity subpanels.
FYI, I renamed the Opportunities module "Gigs" and am using this API Wrapper: github.com/asakusuma/SugarCRM-REST-API-Wrapper-Class
Here's the code:
<?php
// Load Composer Dependencies for Sugar API Wrapper
require_once('vendor/autoload.php');
// Create Sugar Object
$sugar = new \Asakusuma\SugarWrapper\Rest;
// Set Sugar Connection Items
$sugar->setUrl('https://example.com/suitecrm/service/v2/rest.php');
$sugar->setUsername('User');
$sugar->setPassword('Pass');
// Connect to Sugar
$sugar->connect();
// Did something go wrong with the connection? Report it.
$error = $sugar->get_error();
if($error !== FALSE) {
return $error['name'];
}
// Ok... We're going to try and create a test entry in Sugar/Suite
// Create a Contact
$modules = 'Contacts';
// Set Values
$values = array(
'contact_type_c' => 'Prospect',
'lead_source' => 'Website',
'first_name' => 'Test',
'last_name' => 'Contact',
'phone_mobile' => '[phone]',
'email1' => 'test#test.com'
);
// Put it in Suite
$result = $sugar->set($modules, $values);
$contactID = $result['id'];
// Ok, now let's create a Opportunity
$modules = "Opportunities";
$values = array(
'name' => 'My Test Gig',
'sales_stage' => 'New Inquiry',
'amount' => '400'
);
$result = $sugar->set($modules, $values);
$gigID = $result['id'];
// Lastly, let's relate the two - HERE'S WHERE I HAVE PROBLEMS!
// Set Relationship
$moduleName = 'Contacts';
$moduleID = $contactID;
$linkFieldName = 'opportunities';
$relatedIDs = array($gigID);
$nameValueList = array(); // Passing empty array because we don't have any fields that need it
$delete = 0;
$result = $sugar->set_relationship($moduleName, $moduleID, $linkFieldName, $relatedIDs, $nameValueList, $delete);
echo $result['created'] . " relationship(s) made";
?>
The Contact and Opportunity are created just fine. It's the relationship that's not happening.

Answer 1

Ugh... Ok, I get it.
I looked at the API documentation and was passing $relatedIDs back as an array. What I didn't realize is that the API was doing this as well. So what got passed into Suite was a multidimensional array instead of a single array.