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[NOREF] cedar system dataloader (#2577)
* feat: WIP cedar systems data loaders, need to update data loaders signature * add stubbed functions to dataloader instantiation in tests * fix loader fn * fix tests to use testconfig context with dataloaders * update system intake systems to also use dataloaders --------- Co-authored-by: Steven Wade <steven.wade@oddball.io>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| package dataloaders | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
|
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| "github.com/graph-gophers/dataloader" | ||
| "go.uber.org/zap" | ||
|
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| "github.com/cmsgov/easi-app/pkg/appcontext" | ||
| "github.com/cmsgov/easi-app/pkg/models" | ||
| ) | ||
|
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| const cedar_system_loader_key = "id" | ||
|
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| func (loaders *DataLoaders) getCedarSystemBatchFunction(ctx context.Context, keys dataloader.Keys) []*dataloader.Result { | ||
| logger := appcontext.ZLogger(ctx) | ||
| cedarSystems, err := loaders.GetCedarSystems(ctx) | ||
| if err != nil { | ||
| logger.Error("error getting cedar systems in data loader", zap.Error(err)) | ||
| loaderErrors := make([]*dataloader.Result, len(keys)) | ||
| for index := range keys { | ||
| loaderErrors[index] = &dataloader.Result{Data: nil, Error: err} | ||
| } | ||
| return loaderErrors | ||
| } | ||
|
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| systemSummaryMap := make(map[string]*models.CedarSystem) | ||
| for _, sys := range cedarSystems { | ||
| if sys != nil { | ||
| systemSummaryMap[sys.ID.String] = sys | ||
| } | ||
| } | ||
| output := make([]*dataloader.Result, len(keys)) | ||
|
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| for index, key := range keys { | ||
| ck, ok := key.Raw().(KeyArgs) | ||
| if ok { | ||
| resKey := fmt.Sprint(ck.Args[cedar_system_loader_key]) | ||
| cedarSystem, ok := systemSummaryMap[resKey] | ||
| if ok { | ||
| output[index] = &dataloader.Result{Data: cedarSystem, Error: nil} | ||
| } else { | ||
| err := fmt.Errorf("cedar system not found for id %s", resKey) | ||
| output[index] = &dataloader.Result{Data: nil, Error: err} | ||
| } | ||
| } else { | ||
| err := fmt.Errorf("could not retrive key from %s", key.String()) | ||
| output[index] = &dataloader.Result{Data: nil, Error: err} | ||
| } | ||
| } | ||
|
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| return output | ||
| } | ||
|
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| func GetCedarSystemByID(ctx context.Context, id string) (*models.CedarSystem, error) { | ||
| allLoaders := Loaders(ctx) | ||
| cedarSystemLoader := allLoaders.cedarSystemByIDLoader | ||
|
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| key := NewKeyArgs() | ||
| key.Args[cedar_system_loader_key] = id | ||
|
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| thunk := cedarSystemLoader.Loader.Load(ctx, key) | ||
| result, err := thunk() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| system, isCedarSystem := result.(*models.CedarSystem) | ||
| if !isCedarSystem { | ||
| return nil, fmt.Errorf("result is not a cedar system it is Type %T", system) | ||
| } | ||
|
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||
| return system, nil | ||
| } |
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