Answers.Body: <p>You now need to set the groups, product types, and purchasables on the discount model directly, then just pass the discount model to the saveDiscount method:</p>
  
  <p><code>Plugin::getInstance()-&gt;getDiscounts()-&gt;saveDiscount($discount)</code></p>
  
  <p>An example of setting these things on the discount before saving can be found in the discount controller:</p>
  
  <p><a href="https://github.com/craftcms/commerce/blob/develop/src/controllers/DiscountsController.php#L128-L166" rel="nofollow noreferrer">https://github.com/craftcms/commerce/blob/develop/src/controllers/DiscountsController.php#L128-L166</a></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2019-01-09T11:17:57.167Z
Answers.Text: Ok , so this would be $discount->setCategoryIds($productTypes); in my case. Thanks a lot!
Answers.UserDisplayName: phaetons
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2019-01-09T11:07:49.940Z
Answers.LastActivityDate: 2019-01-09T11:07:49.940Z
Answers.UserDisplayName: Luke Holder
Body: <p>We sell vouchers to our shop users. To prevent them for being used on vouchers themself, i could relate them to specific productTypes or even products in Commerce 1.</p>
  
  <pre><code>craft()-&gt;commerce_discounts-&gt;saveDiscount($discount, $groups, $productTypes, $products)
  </code></pre>
  
  <p>In Commerce 2 the 3rd and 4th parametes are gone. How can i relate vouchers to product types programmaticely? </p>
  
Tags: <plugin-development><plugin-craftcommerce2>
Title: What happened to commerce_discounts->saveDiscounts or How to relate vouchers to product types in Commerce 2?
ThreadText: # What happened to commerce_discounts->saveDiscounts or How to relate vouchers to product types in Commerce 2?
  
  (Asked by: username_0 on 2019-01-09)
  
  We sell vouchers to our shop users. To prevent them for being used on vouchers themself, i could relate them to specific productTypes or even products in Commerce 1.
  
  ```
  craft()->commerce_discounts->saveDiscount($discount, $groups, $productTypes, $products)
  
  ```
  
  In Commerce 2 the 3rd and 4th parametes are gone. How can i relate vouchers to product types programmaticely?
  
  **Tags:** plugin-development, plugin-craftcommerce2
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2019-01-09. Score: 1 | Accepted answer
  
  You now need to set the groups, product types, and purchasables on the discount model directly, then just pass the discount model to the saveDiscount method:
  
  `Plugin::getInstance()->getDiscounts()->saveDiscount($discount)`
  
  An example of setting these things on the discount before saving can be found in the discount controller:
  
  <https://github.com/craftcms/commerce/blob/develop/src/controllers/DiscountsController.php#L128-L166>
  
  > **Comments:**
  > **username_0**: Ok , so this would be $discount->setCategoryIds($productTypes); in my case. Thanks a lot!  
  
  ---
  
  