WIP - using objection base model to handle objects operations

backend/src/object/models/model.registry.ts

@@ -0,0 +1,63 @@
+import { Injectable } from '@nestjs/common';
+import { ModelClass } from 'objection';
+import { BaseModel } from './base.model';
+import { DynamicModelFactory, ObjectMetadata } from './dynamic-model.factory';
+
+/**
+ * Registry to store and retrieve dynamic models
+ * One registry per tenant
+ */
+@Injectable()
+export class ModelRegistry {
+  private registry = new Map<string, ModelClass<BaseModel>>();
+
+  /**
+   * Register a model in the registry
+   */
+  registerModel(apiName: string, modelClass: ModelClass<BaseModel>): void {
+    this.registry.set(apiName, modelClass);
+  }
+
+  /**
+   * Get a model from the registry
+   */
+  getModel(apiName: string): ModelClass<BaseModel> {
+    const model = this.registry.get(apiName);
+    if (!model) {
+      throw new Error(`Model for ${apiName} not found in registry`);
+    }
+    return model;
+  }
+
+  /**
+   * Check if a model exists in the registry
+   */
+  hasModel(apiName: string): boolean {
+    return this.registry.has(apiName);
+  }
+
+  /**
+   * Create and register a model from metadata
+   */
+  createAndRegisterModel(
+    metadata: ObjectMetadata,
+  ): ModelClass<BaseModel> {
+    const model = DynamicModelFactory.createModel(metadata);
+    this.registerModel(metadata.apiName, model);
+    return model;
+  }
+
+  /**
+   * Get all registered model names
+   */
+  getAllModelNames(): string[] {
+    return Array.from(this.registry.keys());
+  }
+
+  /**
+   * Clear the registry (useful for testing)
+   */
+  clear(): void {
+    this.registry.clear();
+  }
+}