integration.php

<?php
        $pw = $endpoint->edit($model->pw_id, $payload);
        $pw->custom_fields['_payload'] = $payload;
        /*
         * if the opportunity has the dummy contact still related to it, remove the relation
         */
        if ($resourceName == CRM::RES_OPPORTUNITY) {
            $dummyContact = Clients::findFirst('user_id = 8165');
            if (!empty($dummyContact) && ($dummyContact->pw_id === null || $dummyContact->pw_id == 0)) {
                $dummyContact = Clients::findFirst('pw_id IS NOT NULL AND pw_id > 0');
            }

            $resource->related($model->pw_id)->delete($dummyContact->pw_id, strtolower(CRM::RES_PERSON));
        }

        /*
         * Prospeworks fails to deliver a good api, on opportunities updates, it sets the
         * main company id of the opp to the same as the main contact.
         * Additionally, deleting company relations and recreating them allows to set an
         * arbitrary main company, but only by sending it as the first relation after deleting
         * all the current ones. It also requires to have a small delay between api calls to ensure
         * the calls order as it seems that the calls may not reach the backend in the same order as they are
         * sent to the endpoint if we do it too fast.
         */
        if ($resourceName == CRM::RES_OPPORTUNITY) {
            foreach ($relations as $key => $relation) {
                if ($relation['type'] == strtolower(CRM::RES_PERSON)) {
                    $resource->related($model->pw_id)->create($relation['id'], $relation['type']);
                    unset($relations[$key]);
                }
            }
            $currentRelations = $resource->related($model->pw_id)->all();
            if (is_object($currentRelations)) $currentRelations = [$currentRelations];
            foreach ($currentRelations as $relation) {
                if ($relation->type == strtolower(CRM::RES_COMPANY))
                    $resource->related($model->pw_id)->delete($relation->id, $relation->type);
            }
            foreach ($relations as $key => $relation) {
                sleep(1);
                $resource->related($model->pw_id)->create($relation['id'], $relation['type']);
            }
        }