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feat: add way to get all instances of a type of model from dashboard #649

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feat: add way to get all instances of a type of model from dashboard #649

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c96c32a
feat: add way to get all instance of a type of model from dashboard
jake-bassett Mar 14, 2023
f9d1599
feat: return interface access to private
jake-bassett Mar 14, 2023
dbf3cb5
feat: added check for root model
jake-bassett Mar 15, 2023
da87244
feat: root arg mandatory and back to weakmap
jake-bassett Mar 15, 2023
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2 changes: 1 addition & 1 deletion src/dashboard/dashboard-manager.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -188,6 +188,6 @@ describe('Dashboard manager', () => {
mockModelManager.getModelInstances = jest.fn().mockReturnValue([new mockDataSource()]);

expect(dashboard.getModelInstances(mockDataSource).length).toBe(1);
expect(mockModelManager.getModelInstances).toHaveBeenCalledWith(mockDataSource);
expect(mockModelManager.getModelInstances).toHaveBeenCalledWith(mockDataSource, {});
});
});
2 changes: 1 addition & 1 deletion src/dashboard/default-dashboard.ts
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Expand Up @@ -91,6 +91,6 @@ export class DefaultDashboard<TRoot extends object> implements Dashboard<TRoot>
* @inheritdoc
*/
public getModelInstances<T extends object>(modelClass: Constructable<T>): object[] {
return this.modelManager.getModelInstances<T>(modelClass);
return this.modelManager.getModelInstances<T>(modelClass, this.root);
}
}
1 change: 1 addition & 0 deletions src/model/manager/model-manager.test.ts
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Expand Up @@ -74,6 +74,7 @@ describe('Model manager', () => {
expect(manager.getModelInstances(testClass).length).toBe(2);
expect(manager.getModelInstances(testClass1).length).toBe(1);
expect(manager.getModelInstances(testClass2).length).toBe(0);
expect(manager.getModelInstances(testClass, {}).length).toBe(0);
});

test('allows constructing new models', () => {
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6 changes: 4 additions & 2 deletions src/model/manager/model-manager.ts
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Expand Up @@ -27,8 +27,10 @@ export class ModelManager {
/**
* Returns a shallow copy array of model instances that match the argument model class
*/
public getModelInstances<T extends object>(modelClass: Constructable<T>): object[] {
return Array.from(this.modelInstanceMap.keys()).filter(modelInstance => modelInstance instanceof modelClass);
public getModelInstances<T extends object>(modelClass: Constructable<T>, root?: object): object[] {
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we'd never want to call this without root, and once you have root, you don't need to enumerate keys so you can revert the instancemap back to a weakmap.

return Array.from(this.modelInstanceMap.keys())
.filter(modelInstance => root === undefined || this.getRoot(modelInstance) === root)
.filter(modelInstance => modelInstance instanceof modelClass);
}

/**
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