introduce use of mapAsync

packages/core/strapi/lib/services/entity-service/components.js

@@ -6,6 +6,7 @@ const { has, prop, omit, toString, pipe, assign } = require('lodash/fp');
 const { contentTypes: contentTypesUtils } = require('@strapi/utils');
 const { ApplicationError } = require('@strapi/utils').errors;
 const { getComponentAttributes } = require('@strapi/utils').contentTypes;
+const { mapAsyncDialects } = require('@strapi/utils').async;
 
 const omitComponentData = (contentType, data) => {
   const { attributes } = contentType;
@@ -16,28 +17,6 @@ const omitComponentData = (contentType, data) => {
   return omit(componentAttributes, data);
 };
 
-/**
- * Because of the way mysql works, making parallel requests can cause deadlocks.
- * This function will run the requests sequentially if mysql is used.
- */
-const mapAsyncDialects = async (array, func) => {
-  const results = [];
-
-  switch (strapi.db.dialect.client) {
-    case 'mysql': {
-      for (const elm of array) {
-        results.push(await func(elm));
-      }
-      break;
-    }
-    default:
-      results.push(...(await Promise.all(array.map(func))));
-      break;
-  }
-
-  return results;
-};
-
 // NOTE: we could generalize the logic to allow CRUD of relation directly in the DB layer
 const createComponents = async (uid, data) => {
   const { attributes = {} } = strapi.getModel(uid);

packages/core/utils/lib/async.js

@@ -20,7 +20,33 @@ function pipeAsync(...methods) {
  */
 const mapAsync = curry(pMap);
 
+/**
+ * Because of how mysql works, making parallel requests can cause deadlocks.
+ * This function will run the requests sequentially if mysql is used. Else,
+ * it will encapsulate them in a Promise.all.
+ *
+ * @type { import('./async').MapAsync }
+ */
+const mapAsyncDialects = async (array, func) => {
+  const results = [];
+
+  switch (strapi.db.dialect.client) {
+    case 'mysql': {
+      mapAsync(array, async (elm) => {
+        results.push(await func(elm));
+      });
+      break;
+    }
+    default:
+      results.push(...(await Promise.all(array.map(func))));
+      break;
+  }
+
+  return results;
+};
+
 module.exports = {
   mapAsync,
+  mapAsyncDialects,
   pipeAsync,
 };

packages/plugins/i18n/server/services/localizations.js

@@ -2,6 +2,7 @@
 
 const { prop, isNil, isEmpty } = require('lodash/fp');
 
+const { mapAsyncDialects } = require('@strapi/utils').async;
 const { getService } = require('../utils');
 
 /**
@@ -32,9 +33,9 @@ const syncLocalizations = async (entry, { model }) => {
       return strapi.query(model.uid).update({ where: { id }, data: { localizations } });
     };
 
-    for (const localization of entry.localizations) {
+    await mapAsyncDialects(entry.localizations, (localization) =>
-      await updateLocalization(localization.id);
+      updateLocalization(localization.id)
-    }
+    );
   }
 };
 
@@ -58,9 +59,9 @@ const syncNonLocalizedAttributes = async (entry, { model }) => {
       return strapi.entityService.update(model.uid, id, { data: nonLocalizedAttributes });
     };
 
-    for (const localization of entry.localizations) {
+    await mapAsyncDialects(entry.localizations, (localization) =>
-      await updateLocalization(localization.id);
+      updateLocalization(localization.id)
-    }
+    );
   }
 };