Field multiplicity

package.json

@@ -52,6 +52,14 @@
         "command": "slingr-vscode-extension.changeFieldType",
         "title": "Change type"
       },
+      {
+        "command": "slingr-vscode-extension.changeFieldToArray",
+        "title": "Change to array"
+      },
+      {
+        "command": "slingr-vscode-extension.changeFieldToSingleValue",
+        "title": "Change to single value"
+      },
       {
         "command": "slingr.runInfraUpdate",
         "title": "Run infrastructure update"
@@ -187,19 +195,29 @@
         },
         {
           "command": "slingr-vscode-extension.renameField",
-          "when": "view == slingrExplorer && viewItem == 'field'",
+          "when": "view == slingrExplorer && viewItem =~ /field(Single|Array)/",
           "group": "0_modification@1"
         },
         {
           "command": "slingr-vscode-extension.changeFieldType",
-          "when": "view == slingrExplorer && viewItem == 'field'",
+          "when": "view == slingrExplorer && viewItem =~ /field(Single|Array)/",
           "group": "0_modification@2"
         },
         {
-          "command": "slingr-vscode-extension.deleteField",
-          "when": "view == slingrExplorer && viewItem == 'field'",
+          "command": "slingr-vscode-extension.changeFieldToArray",
+          "when": "view == slingrExplorer && viewItem == 'fieldSingle'",
           "group": "0_modification@3"
         },
+        {
+          "command": "slingr-vscode-extension.changeFieldToSingleValue",
+          "when": "view == slingrExplorer && viewItem == 'fieldArray'",
+          "group": "0_modification@4"
+        },
+        {
+          "command": "slingr-vscode-extension.deleteField",
+          "when": "view == slingrExplorer && viewItem =~ /field(Single|Array)/",
+          "group": "0_modification@5"
+        },
         {
           "command": "slingr-vscode-extension.newFolder",
           "when": "view == slingrExplorer && viewItem == 'folder'",
@@ -301,17 +319,27 @@
         },
         {
           "command": "slingr-vscode-extension.renameField",
-          "when": "view == slingrExplorer && viewItem == 'field'",
+          "when": "view == slingrExplorer && viewItem =~ /field(Single|Array)/",
           "group": "1_modification@4"
         },
         {
           "command": "slingr-vscode-extension.changeFieldType",
-          "when": "view == slingrExplorer && viewItem == 'field'",
+          "when": "view == slingrExplorer && viewItem =~ /field(Single|Array)/",
           "group": "1_modification@5"
         },
+        {
+          "command": "slingr-vscode-extension.changeFieldToArray",
+          "when": "view == slingrExplorer && viewItem == 'fieldSingle'",
+          "group": "1_modification@6"
+        },
+        {
+          "command": "slingr-vscode-extension.changeFieldToSingleValue",
+          "when": "view == slingrExplorer && viewItem == 'fieldArray'",
+          "group": "1_modification@7"
+        },
         {
           "command": "slingr-vscode-extension.deleteField",
-          "when": "view == slingrExplorer && viewItem == 'field'",
+          "when": "view == slingrExplorer && viewItem =~ /field(Single|Array)/",
           "group": "2_modification@3"
         }
       ]
@@ -330,7 +358,7 @@
         {
           "id": "slingrExplorer",
           "name": "Slingr Explorer",
-          "icon": "resources/slingr-icon.jpg" 
+          "icon": "resources/slingr-icon.jpg"
         },
         {
           "id": "slingrQuickInfo",
@@ -352,6 +380,7 @@
   "devDependencies": {
     "@types/mocha": "^10.0.10",
     "@types/node": "22.x",
+    "@types/pluralize": "^0.0.33",
     "@types/vscode": "^1.103.0",
     "@typescript-eslint/eslint-plugin": "^8.39.0",
     "@typescript-eslint/parser": "^8.39.0",
@@ -361,6 +390,7 @@
     "typescript": "^5.9.2"
   },
   "dependencies": {
+    "pluralize": "^8.0.0",
     "ts-morph": "^26.0.0"
   }
 }

src/cache/cache.ts

@@ -721,16 +721,16 @@ export class MetadataCache {
     /**
      * Gets a clean, human-readable name for a ts-morph Type object.
      * This method correctly handles imported types, removing the "import(...)" part,
-     * and properly extracts element types from arrays.
+     * and preserves array notation for array types.
      * @param type The ts-morph Type object.
      * @returns The clean type name as a string.
      */
     private getCleanTypeName(type: Type): string {
-        // Handle array types by extracting the element type
+        // Handle array types by preserving the array notation
         if (type.isArray()) {
             const elementType = type.getArrayElementType();
             if (elementType) {
-                return this.getCleanTypeName(elementType);
+                return this.getCleanTypeName(elementType) + '[]';
             }
         }
 

src/explorer/appTreeItem.ts

@@ -14,9 +14,19 @@ export class AppTreeItem extends vscode.TreeItem {
     folderPath?: string
   ) {
     super(label, collapsibleState);
-    this.contextValue = itemType;
     this.folderPath = folderPath;
 
+    let finalContextValue = itemType;
+    if (itemType === 'field' && metadata && 'type' in metadata) {
+        const propMetadata = metadata as PropertyMetadata;
+        if (propMetadata.type.endsWith('[]')) {
+            finalContextValue = 'fieldArray';
+        } else {
+            finalContextValue = 'fieldSingle';
+        }
+    }
+    this.contextValue = finalContextValue;
+
     // Icon logic
     if (!this.extensionUri) {
       console.warn(`[MyTreeItem] Extension URI not provided for item: "${label}". Local icons will not be loaded.`);
@@ -47,6 +57,8 @@ export class AppTreeItem extends vscode.TreeItem {
           iconFileName = "database.svg";
           break;
         case "field":
+        case "fieldSingle":
+        case "fieldArray":
           iconFileName = "field.svg";
           break;
         case "modelActionsFolder":

src/refactor/refactorDisposables.ts

@@ -15,6 +15,8 @@ import { PropertyMetadata } from '../cache/cache';
 import { fieldTypeConfig } from '../utils/fieldTypes';
 import { RenameDataSourceTool } from './tools/renameDataSource';
 import { DeleteDataSourceTool } from './tools/deleteDataSource';
+import { ChangeFieldToArrayTool } from './tools/changeFieldToArray';
+import { ChangeFieldToSingleValueTool } from './tools/changeFieldToSingleValue';
 
 /**
  * Returns an array of all available refactor tools for the application.
@@ -38,6 +40,8 @@ export function getAllRefactorTools(): IRefactorTool[] {
         new RenameFieldTool(),
         new DeleteFieldTool(),
         new ChangeFieldTypeTool(),
+        new ChangeFieldToArrayTool(),
+        new ChangeFieldToSingleValueTool(),
         new AddDecoratorTool(),
         new RenameDataSourceTool(),
         new DeleteDataSourceTool(),

src/refactor/refactorInterfaces.ts

@@ -67,6 +67,16 @@ export interface DeleteDataSourcePayload extends BasePayload {
     urisToDelete: vscode.Uri[];
 }
 
+export interface ChangeFieldToArrayPayload extends BasePayload {
+    field: PropertyMetadata;
+    modelName: string;
+}
+
+export interface ChangeFieldToSingleValuePayload extends BasePayload {
+    field: PropertyMetadata;
+    modelName: string;
+}
+
 // --- Discriminated Union for ChangeObject ---
 
 /**
@@ -82,6 +92,8 @@ export type ChangePayloadMap = {
     'ADD_DECORATOR': AddDecoratorPayload;
     'RENAME_DATA_SOURCE': RenameDataSourcePayload;
     'DELETE_DATA_SOURCE': DeleteDataSourcePayload;
+    'CHANGE_FIELD_TO_ARRAY': ChangeFieldToArrayPayload;
+    'CHANGE_FIELD_TO_SINGLE_VALUE': ChangeFieldToSingleValuePayload;
 };
 
 /**