feat: make non default locales optional

packages/core/dev-test/config.yml

@@ -19,6 +19,10 @@ i18n:
   # Optional, defaults to the first item in locales.
   # The locale to be used for fields validation and as a baseline for the entry.
   default_locale: en
+
+  # Optional, defaults to true.
+  # Enforce required fields in non-default locales
+  enforce_required_non_default: true
 collections:
   - name: posts
     label: Posts

packages/core/src/actions/__tests__/config.spec.ts

@@ -697,7 +697,12 @@ describe('config', () => {
               },
             ],
           }).collections[0].i18n,
-        ).toEqual({ structure: 'multiple_folders', locales: ['en', 'de'], default_locale: 'en' });
+        ).toEqual({
+          structure: 'multiple_folders',
+          locales: ['en', 'de'],
+          default_locale: 'en',
+          enforce_required_non_default: true,
+        });
       });
 
       it('should not set root i18n on collection when collection i18n is not set', () => {
@@ -757,7 +762,12 @@ describe('config', () => {
               },
             ],
           }).collections[0].i18n,
-        ).toEqual({ structure: 'multiple_folders', locales: ['en', 'fr'], default_locale: 'fr' });
+        ).toEqual({
+          structure: 'multiple_folders',
+          locales: ['en', 'fr'],
+          default_locale: 'fr',
+          enforce_required_non_default: true,
+        });
       });
 
       it('should throw when i18n structure is not single_file on files collection', () => {

packages/core/src/actions/config.ts

@@ -92,17 +92,24 @@ function setI18nField<T extends BaseField = UnknownField>(field: T) {
 
 function getI18nDefaults(
   collectionOrFileI18n: boolean | Partial<I18nInfo>,
-  { default_locale, locales = ['en'], structure = I18N_STRUCTURE_SINGLE_FILE }: Partial<I18nInfo>,
+  {
+    default_locale,
+    locales = ['en'],
+    structure = I18N_STRUCTURE_SINGLE_FILE,
+    enforce_required_non_default = true,
+  }: Partial<I18nInfo>,
 ): I18nInfo {
   if (typeof collectionOrFileI18n === 'boolean') {
-    return { default_locale, locales, structure };
+    return { default_locale, locales, structure, enforce_required_non_default };
   } else {
     const mergedI18n: I18nInfo = deepmerge(
-      { default_locale, locales, structure },
+      { default_locale, locales, structure, enforce_required_non_default },
       collectionOrFileI18n,
     );
     mergedI18n.locales = collectionOrFileI18n.locales ?? locales;
     mergedI18n.default_locale = collectionOrFileI18n.default_locale || locales?.[0];
+    mergedI18n.enforce_required_non_default =
+      collectionOrFileI18n.enforce_required_non_default || true;
     throwOnMissingDefaultLocale(mergedI18n);
     return mergedI18n;
   }
@@ -202,6 +209,7 @@ function applyCollectionFileDefaults(
       locales: collectionI18n.locales,
       default_locale: collectionI18n.default_locale,
       structure: collectionI18n.structure,
+      enforce_required_non_default: collectionI18n.enforce_required_non_default,
     });
     file.i18n = fileI18n;
   } else {
@@ -315,6 +323,7 @@ export function applyDefaults<EF extends BaseField = UnknownField>(
 
   if (i18n) {
     i18n.default_locale = i18n.default_locale ?? i18n.locales[0];
+    i18n.enforce_required_non_default = i18n.enforce_required_non_default ?? true;
   }
 
   throwOnMissingDefaultLocale(i18n);

packages/core/src/components/entry-editor/editor-control-pane/EditorControl.tsx

@@ -124,7 +124,8 @@ const EditorControl: FC<EditorControlProps> = ({
       (!dirty && !submitted) ||
       disabled ||
       i18nDisabled ||
-      (forList && field.widget === 'object' && field.fields.length === 1)
+      (forList && field.widget === 'object' && field.fields.length === 1) ||
+      (i18n?.enforceRequiredNonDefault === false && i18n?.currentLocale !== i18n?.defaultLocale)
     ) {
       return;
     }

packages/core/src/components/entry-editor/editor-control-pane/EditorControlPane.tsx

@@ -88,11 +88,12 @@ const EditorControlPane: FC<EditorControlPaneProps> = ({
 
   const i18n = useMemo(() => {
     if (hasI18n(collection)) {
-      const { locales, default_locale } = getI18nInfo(collection);
+      const { locales, default_locale, enforce_required_non_default } = getI18nInfo(collection);
       return {
         currentLocale: locale ?? locales?.[0],
         locales,
         defaultLocale: default_locale,
+        enforceRequiredNonDefault: enforce_required_non_default,
       } as I18nSettings;
     }
 

packages/core/src/constants/configSchema.tsx

@@ -40,6 +40,7 @@ const i18n = {
       uniqueItems: true,
     },
     default_locale: localeType,
+    enforce_required_non_default: { type: 'boolean' },
   },
 };
 

packages/core/src/interface.ts

@@ -267,6 +267,7 @@ export interface I18nSettings {
   currentLocale: string;
   defaultLocale: string;
   locales: string[];
+  enforceRequiredNonDefault?: boolean;
 }
 
 export type Format = keyof typeof formatExtensions;
@@ -1306,6 +1307,7 @@ export interface I18nInfo {
   locales: string[];
   default_locale?: string;
   structure: I18nStructure;
+  enforce_required_non_default?: boolean;
 }
 
 export interface ProcessedCodeLanguage {

packages/core/src/lib/i18n.ts

@@ -343,6 +343,7 @@ export async function getI18nEntry<EF extends BaseField>(
     i18nInfo = {
       structure: I18N_STRUCTURE_SINGLE_FILE,
       locales: [],
+      enforce_required_non_default: true,
     };
   }
 

packages/core/src/reducers/__tests__/entryDraft.spec.ts

@@ -115,6 +115,7 @@ describe('entryDraft', () => {
                 locales: ['en', 'fr', 'es'],
                 defaultLocale: 'en',
                 currentLocale: 'en',
+                enforceRequiredNonDefault: true,
               },
               isMeta: false,
             },
@@ -155,6 +156,7 @@ describe('entryDraft', () => {
             locales: ['en', 'fr', 'es'],
             defaultLocale: 'en',
             currentLocale: 'en',
+            enforceRequiredNonDefault: true,
           };
 
           let state = entryDraftReducer(startState, {

packages/docs/content/docs/i18n-support.mdx

@@ -25,6 +25,10 @@ i18n:
   # Optional, defaults to the first item in locales.
   # The locale to be used for fields validation and as a baseline for the entry.
   default_locale: en
+
+  # Optional, defaults to true.
+  # Enforce required fields in non-default locales
+  enforce_required_non_default: false
 ```
 
 ```js
@@ -44,7 +48,13 @@ i18n: {
    * Optional, defaults to the first item in locales.
    * The locale to be used for fields validation and as a baseline for the entry.
    */
-  default_locale: 'en'
+  default_locale: 'en',
+
+  /**
+   * Optional, defaults to true.
+   * Enforce required fields in non-default locales
+   */
+  enforce_required_non_default: false
 },
 ```