Adds appendConditions to allow adding multiple in one go

src/Umbraco.Web.UI.Client/src/libs/extension-api/registry/extension.registry.test.ts

@@ -533,4 +533,24 @@ describe('Append Conditions', () => {
 		const updatedWorkspaceExt = extensionRegistry.getByAlias('Umb.Test.Section.2') as ManifestWithDynamicConditions;
 		expect(updatedWorkspaceExt.conditions?.length).to.equal(1);
 	});
+
+	it('allows an extension to update with multiple conditions', () => {
+		const ext = extensionRegistry.getByAlias('Umb.Test.Section.1') as ManifestWithDynamicConditions;
+		expect(ext.conditions?.length).to.equal(1);
+
+		const conditions:Array<UmbConditionConfigBase> = [
+			{
+				alias: 'Umb.Test.Condition.Valid'
+			},
+			{
+				alias: 'Umb.Condition.WorkspaceAlias',
+				match: 'Umb.Workspace.Document'
+			} as WorkspaceAliasConditionConfig
+		]
+
+		extensionRegistry.appendConditions('Umb.Test.Section.1', conditions);
+
+		const extUpdated = extensionRegistry.getByAlias('Umb.Test.Section.1') as ManifestWithDynamicConditions;
+		expect(ext.conditions?.length).to.equal(3);
+	});
 });

src/Umbraco.Web.UI.Client/src/libs/extension-api/registry/extension.registry.ts

@@ -440,7 +440,7 @@ export class UmbExtensionRegistry<
 	 * Useful to add a condition for example the Save And Publish workspace action shipped by core
 	 * As overwriting the whole extension to simply add an extra condition is not ideal as it causes a lot of duplicated code
 	 * and could easily get out of sync from the CMS core implementation if a 3rd party dev was to try and overwrite it
-	 * @param alias {string} - The alias of the extension to get.
+	 * @param alias {string} - The alias of the extension to append the condition to
 	 * @param newCondition {UmbConditionConfigBase} - The condition to append to the extension.
 	 */
 	appendCondition(alias: string, newCondition: UmbConditionConfigBase) {
@@ -461,4 +461,13 @@ export class UmbExtensionRegistry<
 		// Update the extensions observable
 		this._extensions.setValue(allExtensions);
 	}
+
+	/**
+	 * Appends a collection of conditions to an exsiting extension
+	 * @param alias {string} - The alias of the extension to append the condition to
+	 * @param newConditions {Array<UmbConditionConfigBase>} - A collection of conditions to append to an extension.
+	 */
+	appendConditions(alias: string, newConditions: Array<UmbConditionConfigBase>){
+		newConditions.forEach((condition) => this.appendCondition(alias, condition));
+	}
 }