Merge pull request #842 from mirumee/saleor-1516-do-not-clear-form-on-error

[1516] Create product only when all required fields are valid

src/products/views/ProductCreate/ProductCreate.tsx

@@ -10,6 +10,7 @@ import useShop from "@saleor/hooks/useShop";
 import ProductCreatePage from "@saleor/products/components/ProductCreatePage";
 import {
   useProductChannelListingUpdate,
+  useProductDeleteMutation,
   useProductVariantChannelListingUpdate,
   useVariantCreateMutation
 } from "@saleor/products/mutations";
@@ -37,6 +38,9 @@ export const ProductCreateView: React.FC = () => {
   const notify = useNotifier();
   const shop = useShop();
   const intl = useIntl();
+  const [productCreateComplete, setProductCreateComplete] = React.useState(
+    false
+  );
   const {
     loadMore: loadMoreCategories,
     search: searchCategory,
@@ -100,14 +104,9 @@ export const ProductCreateView: React.FC = () => {
     navigate(productUrl(productId));
   };
 
-  const [updateChannels, updateChannelsOpts] = useProductChannelListingUpdate({
-    onCompleted: data => {
-      const productId = data.productChannelListingUpdate.product.id;
-      if (productId) {
-        handleSuccess(productId);
-      }
-    }
-  });
+  const [updateChannels, updateChannelsOpts] = useProductChannelListingUpdate(
+    {}
+  );
   const [
     updateVariantChannels,
     updateVariantChannelsOpts
@@ -116,6 +115,7 @@ export const ProductCreateView: React.FC = () => {
   const handleBack = () => navigate(productListUrl());
 
   const [productCreate, productCreateOpts] = useProductCreateMutation({});
+  const [deleteProduct] = useProductDeleteMutation({});
   const [
     productVariantCreate,
     productVariantCreateOpts
@@ -133,17 +133,32 @@ export const ProductCreateView: React.FC = () => {
     }
   });
 
-  const handleSubmit = createMetadataCreateHandler(
-    createHandler(
-      productTypes,
-      variables => productCreate({ variables }),
-      variables => productVariantCreate({ variables }),
-      updateChannels,
-      updateVariantChannels
-    ),
-    updateMetadata,
-    updatePrivateMetadata
-  );
+  const handleSubmit = async data => {
+    const result = await createMetadataCreateHandler(
+      createHandler(
+        productTypes,
+        variables => productCreate({ variables }),
+        variables => productVariantCreate({ variables }),
+        updateChannels,
+        updateVariantChannels,
+        deleteProduct
+      ),
+      updateMetadata,
+      updatePrivateMetadata
+    )(data);
+
+    if (result) {
+      setProductCreateComplete(true);
+    }
+  };
+
+  React.useEffect(() => {
+    const productId = productCreateOpts.data?.productCreate?.product?.id;
+
+    if (productCreateComplete && productId) {
+      handleSuccess(productId);
+    }
+  }, [productCreateComplete]);
 
   return (
     <>

src/products/views/ProductCreate/handlers.ts

@@ -9,6 +9,10 @@ import {
   ProductCreate,
   ProductCreateVariables
 } from "@saleor/products/types/ProductCreate";
+import {
+  ProductDelete,
+  ProductDeleteVariables
+} from "@saleor/products/types/ProductDelete";
 import {
   ProductVariantChannelListingUpdate,
   ProductVariantChannelListingUpdateVariables
@@ -59,7 +63,10 @@ export function createHandler(
   }) => Promise<MutationFetchResult<ProductChannelListingUpdate>>,
   updateVariantChannels: (options: {
     variables: ProductVariantChannelListingUpdateVariables;
-  }) => Promise<MutationFetchResult<ProductVariantChannelListingUpdate>>
+  }) => Promise<MutationFetchResult<ProductVariantChannelListingUpdate>>,
+  productDelete: (options: {
+    variables: ProductDeleteVariables;
+  }) => Promise<MutationFetchResult<ProductDelete>>
 ) {
   return async (formData: ProductCreateData) => {
     const productVariables: ProductCreateVariables = {
@@ -85,6 +92,7 @@ export function createHandler(
     };
 
     const result = await productCreate(productVariables);
+    let hasErrors = false;
 
     const hasVariants = productTypes.find(
       product => product.id === formData.productType.id
@@ -98,7 +106,13 @@ export function createHandler(
         ),
         productVariantCreate(getSimpleProductVariables(formData, productId))
       ]);
-      const variantErrors = result[1].data.productVariantCreate.errors;
+      const channelErrors = result[0].data?.productChannelListingUpdate?.errors;
+      const variantErrors = result[1].data?.productVariantCreate?.errors;
+
+      if ([...(channelErrors || []), ...(variantErrors || [])].length > 0) {
+        hasErrors = true;
+      }
+
       const variantId = result[1].data.productVariantCreate.productVariant?.id;
       if (variantErrors.length === 0 && variantId) {
         updateVariantChannels({
@@ -113,7 +127,23 @@ export function createHandler(
         });
       }
     } else {
-      updateChannels(getChannelsVariables(productId, formData.channelListings));
+      const result = await updateChannels(
+        getChannelsVariables(productId, formData.channelListings)
+      );
+
+      if (result.data?.productChannelListingUpdate?.errors.length > 0) {
+        hasErrors = true;
+      }
+    }
+
+    /*
+     INFO: This is a stop-gap solution, where we delete products that didn't meet all required data in the create form
+     A more robust solution would require merging create and update form into one to persist form state across redirects
+    */
+    if (productId && hasErrors) {
+      productDelete({ variables: { id: productId } });
+
+      return null;
     }
     return productId || null;
   };