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fix: constrain entity fields type to string-keyed object
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wschurman committed Jun 4, 2024
1 parent 7c3c985 commit 4caea03
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Showing 23 changed files with 60 additions and 36 deletions.
Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,9 @@ export const DOES_NOT_EXIST_LOCAL_MEMORY_CACHE = Symbol('doesNotExist');
type LocalMemoryCacheValue<TFields> = Readonly<TFields> | typeof DOES_NOT_EXIST_LOCAL_MEMORY_CACHE;
export type LocalMemoryCache<TFields> = LRUCache<string, LocalMemoryCacheValue<TFields>>;

export default class GenericLocalMemoryCacher<TFields> implements IEntityGenericCacher<TFields> {
export default class GenericLocalMemoryCacher<TFields extends Record<string, any>>
implements IEntityGenericCacher<TFields>
{
constructor(
private readonly entityConfiguration: EntityConfiguration<TFields>,
private readonly localMemoryCache: LocalMemoryCache<TFields>
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Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,7 @@ export default class LocalMemoryCacheAdapterProvider implements IEntityCacheAdap
private readonly localMemoryCacheCreator: <TFields>() => LocalMemoryCache<TFields>
) {}

public getCacheAdapter<TFields>(
public getCacheAdapter<TFields extends Record<string, any>>(
entityConfiguration: EntityConfiguration<TFields>
): IEntityCacheAdapter<TFields> {
return computeIfAbsent(this.localMemoryCacheAdapterMap, entityConfiguration.tableName, () => {
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Original file line number Diff line number Diff line change
Expand Up @@ -57,7 +57,9 @@ export interface GenericRedisCacheContext {
ttlSecondsNegative: number;
}

export default class GenericRedisCacher<TFields> implements IEntityGenericCacher<TFields> {
export default class GenericRedisCacher<TFields extends Record<string, any>>
implements IEntityGenericCacher<TFields>
{
constructor(
private readonly context: GenericRedisCacheContext,
private readonly entityConfiguration: EntityConfiguration<TFields>
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@ import GenericRedisCacher, { GenericRedisCacheContext } from './GenericRedisCach
export default class RedisCacheAdapterProvider implements IEntityCacheAdapterProvider {
constructor(private readonly context: GenericRedisCacheContext) {}

getCacheAdapter<TFields>(
getCacheAdapter<TFields extends Record<string, any>>(
entityConfiguration: EntityConfiguration<TFields>
): IEntityCacheAdapter<TFields> {
return new GenericEntityCacheAdapter(new GenericRedisCacher(this.context, entityConfiguration));
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,9 @@ import { Knex } from 'knex';
import { JSONArrayField, MaybeJSONArrayField } from './EntityFields';
import wrapNativePostgresCallAsync from './errors/wrapNativePostgresCallAsync';

export default class PostgresEntityDatabaseAdapter<TFields> extends EntityDatabaseAdapter<TFields> {
export default class PostgresEntityDatabaseAdapter<
TFields extends Record<string, any>
> extends EntityDatabaseAdapter<TFields> {
protected getFieldTransformerMap(): FieldTransformerMap {
return new Map<string, FieldTransformer<any>>([
[
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ import PostgresEntityDatabaseAdapter from './PostgresEntityDatabaseAdapter';
export default class PostgresEntityDatabaseAdapterProvider
implements IEntityDatabaseAdapterProvider
{
getDatabaseAdapter<TFields>(
getDatabaseAdapter<TFields extends Record<string, any>>(
entityConfiguration: EntityConfiguration<TFields>
): EntityDatabaseAdapter<TFields> {
return new PostgresEntityDatabaseAdapter(entityConfiguration);
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ import { v4 as uuidv4 } from 'uuid';
const dbObjects: Readonly<{ [key: string]: any }>[] = [];

export class InMemoryDatabaseAdapterProvider implements IEntityDatabaseAdapterProvider {
getDatabaseAdapter<TFields>(
getDatabaseAdapter<TFields extends Record<string, any>>(
entityConfiguration: EntityConfiguration<TFields>
): EntityDatabaseAdapter<TFields> {
return new InMemoryDatabaseAdapter(entityConfiguration);
Expand All @@ -26,7 +26,7 @@ export class InMemoryDatabaseAdapterProvider implements IEntityDatabaseAdapterPr
* In-memory database adapter for entity for the purposes of this example. Normally `@expo/entity-database-adapter-knex`
* or another production adapter would be used. Very similar to StubDatabaseAdapter but shared in a way more akin to a normal database.
*/
class InMemoryDatabaseAdapter<T> extends EntityDatabaseAdapter<T> {
class InMemoryDatabaseAdapter<T extends Record<string, any>> extends EntityDatabaseAdapter<T> {
protected getFieldTransformerMap(): FieldTransformerMap {
return new Map();
}
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@ import {
* TLoadParams must be JSON stringifyable.
*/
export default class LocalMemorySecondaryEntityCache<
TFields,
TFields extends Record<string, any>,
TLoadParams
> extends GenericSecondaryEntityCache<TFields, TLoadParams> {
constructor(
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@ import { GenericRedisCacheContext, GenericRedisCacher } from '@expo/entity-cache
* A redis GenericSecondaryEntityCache.
*/
export default class RedisSecondaryEntityCache<
TFields,
TFields extends Record<string, any>,
TLoadParams
> extends GenericSecondaryEntityCache<TFields, TLoadParams> {
constructor(
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2 changes: 1 addition & 1 deletion packages/entity/src/EntityCompanionProvider.ts
Original file line number Diff line number Diff line change
Expand Up @@ -209,7 +209,7 @@ export default class EntityCompanionProvider {
return entityDatabaseAdapterFlavor.queryContextProvider;
}

private getTableDataCoordinatorForEntity<TFields>(
private getTableDataCoordinatorForEntity<TFields extends Record<string, any>>(
entityConfiguration: EntityConfiguration<TFields>,
entityClassName: string
): EntityTableDataCoordinator<TFields> {
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4 changes: 2 additions & 2 deletions packages/entity/src/EntityConfiguration.ts
Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ import { mapMap, invertMap, reduceMap } from './utils/collections/maps';
* The data storage configuration for a type of Entity. Contains information relating to IDs,
* cachable fields, field mappings, and types of cache and database adapter.
*/
export default class EntityConfiguration<TFields> {
export default class EntityConfiguration<TFields extends Record<string, any>> {
readonly idField: keyof TFields;
readonly tableName: string;
readonly cacheableKeys: ReadonlySet<keyof TFields>;
Expand Down Expand Up @@ -76,7 +76,7 @@ export default class EntityConfiguration<TFields> {
// external schema is a Record to typecheck that all fields have FieldDefinitions,
// but internally the most useful representation is a map for lookups
// TODO(wschurman): validate schema
this.schema = new Map(Object.entries(schema) as any);
this.schema = new Map(Object.entries(schema));

this.cacheableKeys = EntityConfiguration.computeCacheableKeys(this.schema);
this.entityToDBFieldsKeyMapping = EntityConfiguration.computeEntityToDBFieldsKeyMapping(
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2 changes: 1 addition & 1 deletion packages/entity/src/EntityDatabaseAdapter.ts
Original file line number Diff line number Diff line change
Expand Up @@ -113,7 +113,7 @@ export interface TableQuerySelectionModifiersWithOrderByRaw extends TableQuerySe
* handles all entity field transformation. Subclasses are responsible for
* implementing database-specific logic for a type of database.
*/
export default abstract class EntityDatabaseAdapter<TFields> {
export default abstract class EntityDatabaseAdapter<TFields extends Record<string, any>> {
private readonly fieldTransformerMap: FieldTransformerMap;

constructor(private readonly entityConfiguration: EntityConfiguration<TFields>) {
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2 changes: 1 addition & 1 deletion packages/entity/src/IEntityCacheAdapterProvider.ts
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ export default interface IEntityCacheAdapterProvider {
/**
* Vend a cache adapter for an entity configuration.
*/
getCacheAdapter<TFields>(
getCacheAdapter<TFields extends Record<string, any>>(
entityConfiguration: EntityConfiguration<TFields>
): IEntityCacheAdapter<TFields>;
}
2 changes: 1 addition & 1 deletion packages/entity/src/IEntityDatabaseAdapterProvider.ts
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ export default interface IEntityDatabaseAdapterProvider {
/**
* Vend a database adapter.
*/
getDatabaseAdapter<TFields>(
getDatabaseAdapter<TFields extends Record<string, any>>(
entityConfiguration: EntityConfiguration<TFields>
): EntityDatabaseAdapter<TFields>;
}
4 changes: 3 additions & 1 deletion packages/entity/src/__tests__/ComposedCacheAdapter-test.ts
Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,9 @@ const entityConfiguration = new EntityConfiguration<BlahFields>({
export const DOES_NOT_EXIST_LOCAL_MEMORY_CACHE = Symbol('doesNotExist');
type LocalMemoryCacheValue<TFields> = Readonly<TFields> | typeof DOES_NOT_EXIST_LOCAL_MEMORY_CACHE;

class TestLocalCacheAdapter<TFields> implements IEntityCacheAdapter<TFields> {
class TestLocalCacheAdapter<TFields extends Record<string, any>>
implements IEntityCacheAdapter<TFields>
{
constructor(
private readonly entityConfiguration: EntityConfiguration<TFields>,
private readonly cache: Map<string, LocalMemoryCacheValue<TFields>>
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2 changes: 1 addition & 1 deletion packages/entity/src/__tests__/EntityMutator-test.ts
Original file line number Diff line number Diff line change
Expand Up @@ -303,7 +303,7 @@ const createEntityMutatorFactory = (
)
);
const customStubDatabaseAdapterProvider: IEntityDatabaseAdapterProvider = {
getDatabaseAdapter<TFields>(
getDatabaseAdapter<TFields extends Record<string, any>>(
_entityConfiguration: EntityConfiguration<TFields>
): EntityDatabaseAdapter<TFields> {
return databaseAdapter as any as EntityDatabaseAdapter<TFields>;
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2 changes: 1 addition & 1 deletion packages/entity/src/internal/EntityDataManager.ts
Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,7 @@ import { computeIfAbsent, zipToMap } from '../utils/collections/maps';
*
* It is also responsible for invalidating all sources of data when mutated using EntityMutator.
*/
export default class EntityDataManager<TFields> {
export default class EntityDataManager<TFields extends Record<string, any>> {
private readonly fieldDataLoaders: Map<
keyof TFields,
DataLoader<NonNullable<TFields[keyof TFields]>, readonly Readonly<TFields>[]>
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30 changes: 21 additions & 9 deletions packages/entity/src/internal/EntityFieldTransformationUtils.ts
Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,7 @@ export interface FieldTransformer<T> {
*/
export type FieldTransformerMap = Map<string, FieldTransformer<any>>;

export const getDatabaseFieldForEntityField = <TFields>(
export const getDatabaseFieldForEntityField = <TFields extends Record<string, any>>(
entityConfiguration: EntityConfiguration<TFields>,
entityField: keyof TFields
): string => {
Expand All @@ -29,7 +29,7 @@ export const getDatabaseFieldForEntityField = <TFields>(
return databaseField!;
};

export const transformDatabaseObjectToFields = <TFields>(
export const transformDatabaseObjectToFields = <TFields extends Record<string, any>>(
entityConfiguration: EntityConfiguration<TFields>,
fieldTransformerMap: FieldTransformerMap,
databaseObject: { [key: string]: any }
Expand All @@ -50,7 +50,7 @@ export const transformDatabaseObjectToFields = <TFields>(
return fields;
};

export const transformFieldsToDatabaseObject = <TFields>(
export const transformFieldsToDatabaseObject = <TFields extends Record<string, any>>(
entityConfiguration: EntityConfiguration<TFields>,
fieldTransformerMap: FieldTransformerMap,
fields: Readonly<Partial<TFields>>
Expand All @@ -70,7 +70,7 @@ export const transformFieldsToDatabaseObject = <TFields>(
return databaseObject;
};

export const transformCacheObjectToFields = <TFields>(
export const transformCacheObjectToFields = <TFields extends Record<string, any>>(
entityConfiguration: EntityConfiguration<TFields>,
fieldTransformerMap: FieldTransformerMap,
cacheObject: { [key: string]: any }
Expand All @@ -88,7 +88,7 @@ export const transformCacheObjectToFields = <TFields>(
return fields;
};

export const transformFieldsToCacheObject = <TFields>(
export const transformFieldsToCacheObject = <TFields extends Record<string, any>>(
entityConfiguration: EntityConfiguration<TFields>,
fieldTransformerMap: FieldTransformerMap,
fields: Readonly<Partial<TFields>>
Expand All @@ -106,7 +106,10 @@ export const transformFieldsToCacheObject = <TFields>(
return cacheObject;
};

const maybeTransformDatabaseValueToFieldValue = <TFields, N extends keyof TFields>(
const maybeTransformDatabaseValueToFieldValue = <
TFields extends Record<string, any>,
N extends keyof TFields
>(
entityConfiguration: EntityConfiguration<TFields>,
fieldTransformerMap: FieldTransformerMap,
fieldName: N,
Expand All @@ -120,7 +123,10 @@ const maybeTransformDatabaseValueToFieldValue = <TFields, N extends keyof TField
return readTransformer ? readTransformer(value) : value;
};

const maybeTransformFieldValueToDatabaseValue = <TFields, N extends keyof TFields>(
const maybeTransformFieldValueToDatabaseValue = <
TFields extends Record<string, any>,
N extends keyof TFields
>(
entityConfiguration: EntityConfiguration<TFields>,
fieldTransformerMap: FieldTransformerMap,
fieldName: N,
Expand All @@ -132,7 +138,10 @@ const maybeTransformFieldValueToDatabaseValue = <TFields, N extends keyof TField
return writeTransformer ? writeTransformer(value) : value;
};

const maybeTransformCacheValueToFieldValue = <TFields, N extends keyof TFields>(
const maybeTransformCacheValueToFieldValue = <
TFields extends Record<string, any>,
N extends keyof TFields
>(
entityConfiguration: EntityConfiguration<TFields>,
fieldTransformerMap: FieldTransformerMap,
fieldName: N,
Expand All @@ -148,7 +157,10 @@ const maybeTransformCacheValueToFieldValue = <TFields, N extends keyof TFields>(
return readTransformer ? readTransformer(value) : value;
};

const maybeTransformFieldValueToCacheValue = <TFields, N extends keyof TFields>(
const maybeTransformFieldValueToCacheValue = <
TFields extends Record<string, any>,
N extends keyof TFields
>(
entityConfiguration: EntityConfiguration<TFields>,
fieldTransformerMap: FieldTransformerMap,
fieldName: N,
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2 changes: 1 addition & 1 deletion packages/entity/src/internal/EntityTableDataCoordinator.ts
Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@ import IEntityMetricsAdapter from '../metrics/IEntityMetricsAdapter';
* table. Note that one instance is shared amongst all entities that read from
* the table to ensure cross-entity data consistency.
*/
export default class EntityTableDataCoordinator<TFields> {
export default class EntityTableDataCoordinator<TFields extends Record<string, any>> {
readonly databaseAdapter: EntityDatabaseAdapter<TFields>;
readonly cacheAdapter: IEntityCacheAdapter<TFields>;
readonly dataManager: EntityDataManager<TFields>;
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2 changes: 1 addition & 1 deletion packages/entity/src/internal/ReadThroughEntityCache.ts
Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@ export type CacheLoadResult<TFields> =
* A read-through entity cache is responsible for coordinating EntityDatabaseAdapter and
* EntityCacheAdapter within the EntityDataManager.
*/
export default class ReadThroughEntityCache<TFields> {
export default class ReadThroughEntityCache<TFields extends Record<string, any>> {
constructor(
private readonly entityConfiguration: EntityConfiguration<TFields>,
private readonly entityCacheAdapter: IEntityCacheAdapter<TFields>
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8 changes: 5 additions & 3 deletions packages/entity/src/utils/testing/StubCacheAdapter.ts
Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ import IEntityCacheAdapterProvider from '../../IEntityCacheAdapterProvider';
import { CacheStatus, CacheLoadResult } from '../../internal/ReadThroughEntityCache';

export class NoCacheStubCacheAdapterProvider implements IEntityCacheAdapterProvider {
getCacheAdapter<TFields>(
getCacheAdapter<TFields extends Record<string, any>>(
_entityConfiguration: EntityConfiguration<TFields>
): IEntityCacheAdapter<TFields> {
return new NoCacheStubCacheAdapter();
Expand Down Expand Up @@ -45,7 +45,7 @@ export class NoCacheStubCacheAdapter<TFields> implements IEntityCacheAdapter<TFi
export class InMemoryFullCacheStubCacheAdapterProvider implements IEntityCacheAdapterProvider {
cache: Map<string, Readonly<object>> = new Map();

getCacheAdapter<TFields>(
getCacheAdapter<TFields extends Record<string, any>>(
entityConfiguration: EntityConfiguration<TFields>
): IEntityCacheAdapter<TFields> {
return new InMemoryFullCacheStubCacheAdapter(
Expand All @@ -55,7 +55,9 @@ export class InMemoryFullCacheStubCacheAdapterProvider implements IEntityCacheAd
}
}

export class InMemoryFullCacheStubCacheAdapter<TFields> implements IEntityCacheAdapter<TFields> {
export class InMemoryFullCacheStubCacheAdapter<TFields extends Record<string, any>>
implements IEntityCacheAdapter<TFields>
{
constructor(
private readonly entityConfiguration: EntityConfiguration<TFields>,
readonly cache: Map<string, Readonly<TFields>>
Expand Down
6 changes: 4 additions & 2 deletions packages/entity/src/utils/testing/StubDatabaseAdapter.ts
Original file line number Diff line number Diff line change
Expand Up @@ -16,15 +16,17 @@ import {
} from '../../internal/EntityFieldTransformationUtils';
import { computeIfAbsent, mapMap } from '../collections/maps';

export default class StubDatabaseAdapter<T> extends EntityDatabaseAdapter<T> {
export default class StubDatabaseAdapter<
T extends Record<string, any>
> extends EntityDatabaseAdapter<T> {
constructor(
private readonly entityConfiguration2: EntityConfiguration<T>,
private readonly dataStore: Map<string, Readonly<{ [key: string]: any }>[]>
) {
super(entityConfiguration2);
}

public static convertFieldObjectsToDataStore<T>(
public static convertFieldObjectsToDataStore<T extends Record<string, any>>(
entityConfiguration: EntityConfiguration<T>,
dataStore: Map<string, Readonly<T>[]>
): Map<string, Readonly<{ [key: string]: any }>[]> {
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ import IEntityDatabaseAdapterProvider from '../../IEntityDatabaseAdapterProvider
export default class StubDatabaseAdapterProvider implements IEntityDatabaseAdapterProvider {
private readonly objectCollection = new Map();

getDatabaseAdapter<TFields>(
getDatabaseAdapter<TFields extends Record<string, any>>(
entityConfiguration: EntityConfiguration<TFields>
): EntityDatabaseAdapter<TFields> {
return new StubDatabaseAdapter(entityConfiguration, this.objectCollection);
Expand Down

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