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@decaf-ts/db-decorators

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Agnostic database decorators and repository

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"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.Repository = void 0; const utils_1 = require("./utils.cjs"); const constants_1 = require("./../operations/constants.cjs"); const errors_1 = require("./errors.cjs"); const BaseRepository_1 = require("./BaseRepository.cjs"); const constants_2 = require("./../model/constants.cjs"); const Context_1 = require("./Context.cjs"); /** * @description Concrete repository implementation with validation support. * @summary The Repository class extends BaseRepository to provide additional validation * functionality. It overrides prefix methods to perform model validation before database * operations and throws ValidationError when validation fails. * @template M - The model type extending Model * @template F - The repository flags type, defaults to RepositoryFlags * @template C - The context type, defaults to Context<F> * @class Repository * @example * class UserModel extends Model { * @id() * id: string; * * @required() * @minLength(3) * name: string; * } * * class UserRepository extends Repository<UserModel> { * constructor() { * super(UserModel); * } * * async create(model: UserModel): Promise<UserModel> { * // Implementation with automatic validation * return model; * } * } * * // Using the repository * const repo = new UserRepository(); * try { * const user = await repo.create({ name: 'Jo' }); // Will throw ValidationError * } catch (error) { * console.error(error); // ValidationError: name must be at least 3 characters * } */ class Repository extends BaseRepository_1.BaseRepository { constructor(clazz) { super(clazz); } /** * @description Prepares a model for creation with validation. * @summary Overrides the base createPrefix method to add validation checks. * Creates a context, instantiates a new model, enforces decorators, and validates * the model before allowing creation to proceed. * @param {M} model - The model instance to prepare for creation * @param {any[]} args - Additional arguments for the create operation * @return A promise that resolves to an array containing the validated model and context arguments * @throws {ValidationError} If the model fails validation */ async createPrefix(model, ...args) { const contextArgs = await Context_1.Context.args(constants_1.OperationKeys.CREATE, this.class, args); model = new this.class(model); await (0, utils_1.enforceDBDecorators)(this, contextArgs.context, model, constants_1.OperationKeys.CREATE, constants_1.OperationKeys.ON); const errors = await Promise.resolve(model.hasErrors()); if (errors) throw new errors_1.ValidationError(errors.toString()); return [model, ...contextArgs.args]; } /** * @description Prepares multiple models for creation with validation. * @summary Overrides the base createAllPrefix method to add validation checks for multiple models. * Creates a context, instantiates new models, enforces decorators, and validates * each model before allowing creation to proceed. Collects validation errors from all models. * @param {M[]} models - The array of model instances to prepare for creation * @param {any[]} args - Additional arguments for the create operation * @return {Promise<any[]>} A promise that resolves to an array containing the validated models and context arguments * @throws {ValidationError} If any model fails validation, with details about which models failed */ async createAllPrefix(models, ...args) { const contextArgs = await Context_1.Context.args(constants_1.OperationKeys.CREATE, this.class, args); await Promise.all(models.map(async (m) => { m = new this.class(m); await (0, utils_1.enforceDBDecorators)(this, contextArgs.context, m, constants_1.OperationKeys.CREATE, constants_1.OperationKeys.ON); return m; })); const modelsValidation = await Promise.all(models.map((m) => Promise.resolve(m.hasErrors()))); const errors = modelsValidation.reduce((accum, e, i) => { if (e) accum = typeof accum === "string" ? accum + `\n - ${i}: ${e.toString()}` : ` - ${i}: ${e.toString()}`; return accum; }, undefined); if (errors) throw new errors_1.ValidationError(errors); return [models, ...contextArgs.args]; } /** * @description Prepares a model for update with validation. * @summary Overrides the base updatePrefix method to add validation checks. * Creates a context, validates the primary key, retrieves the existing model, * merges the old and new models, enforces decorators, and validates the model * before allowing the update to proceed. * @param {M} model - The model instance to prepare for update * @param {any[]} args - Additional arguments for the update operation * @return A promise that resolves to an array containing the validated model and context arguments * @throws {InternalError} If the model doesn't have a primary key value * @throws {ValidationError} If the model fails validation */ async updatePrefix(model, ...args) { const contextArgs = await Context_1.Context.args(constants_1.OperationKeys.UPDATE, this.class, args); const pk = model[this.pk]; if (!pk) throw new errors_1.InternalError(`No value for the Id is defined under the property ${this.pk}`); const oldModel = await this.read(pk); model = this.merge(oldModel, model); await (0, utils_1.enforceDBDecorators)(this, contextArgs.context, model, constants_1.OperationKeys.UPDATE, constants_1.OperationKeys.ON, oldModel); const errors = await Promise.resolve(model.hasErrors(oldModel)); if (errors) throw new errors_1.ValidationError(errors.toString()); return [model, ...contextArgs.args]; } /** * @description Prepares multiple models for update with validation. * @summary Overrides the base updateAllPrefix method to add validation checks for multiple models. * Creates a context, validates primary keys, retrieves existing models, merges old and new models, * enforces decorators, and validates each model before allowing updates to proceed. * Collects validation errors from all models. * @param {M[]} models - The array of model instances to prepare for update * @param {any[]} args - Additional arguments for the update operation * @return A promise that resolves to an array containing the validated models and context arguments * @throws {InternalError} If any model doesn't have a primary key value * @throws {ValidationError} If any model fails validation, with details about which models failed */ async updateAllPrefix(models, ...args) { const contextArgs = await Context_1.Context.args(constants_1.OperationKeys.UPDATE, this.class, args); const ids = models.map((m) => { const id = m[this.pk]; if (typeof id === "undefined") throw new errors_1.InternalError(`No value for the Id is defined under the property ${this.pk}`); return id; }); const oldModels = await this.readAll(ids, ...contextArgs.args); models = models.map((m, i) => this.merge(oldModels[i], m)); await Promise.all(models.map((m, i) => (0, utils_1.enforceDBDecorators)(this, contextArgs.context, m, constants_1.OperationKeys.UPDATE, constants_1.OperationKeys.ON, oldModels[i]))); const modelsValidation = await Promise.all(models.map((m, i) => Promise.resolve(m.hasErrors(oldModels[i])))); const errors = modelsValidation.reduce((accum, e, i) => { if (e) accum = typeof accum === "string" ? accum + `\n - ${i}: ${e.toString()}` : ` - ${i}: ${e.toString()}`; return accum; }, undefined); if (errors) throw new errors_1.ValidationError(errors); return [models, ...contextArgs.args]; } /** * @description Creates a reflection key for database operations. * @summary Generates a key for storing metadata in the reflection system by prefixing * the provided key with the database reflection prefix. * @param {string} key - The base key to prefix * @return {string} The prefixed reflection key */ static key(key) { return constants_2.DBKeys.REFLECT + key; } } exports.Repository = Repository; //# 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{ enforceDBDecorators } from \"./utils\";\nimport { OperationKeys } from \"../operations/constants\";\nimport { InternalError, ValidationError } from \"./errors\";\nimport { BaseRepository } from \"./BaseRepository\";\nimport { Constructor, Model } from \"@decaf-ts/decorator-validation\";\nimport { DBKeys } from \"../model/constants\";\nimport { Context } from \"./Context\";\nimport { RepositoryFlags } from \"./types\";\n\n/**\n * @description Concrete repository implementation with validation support.\n * @summary The Repository class extends BaseRepository to provide additional validation\n * functionality. It overrides prefix methods to perform model validation before database\n * operations and throws ValidationError when validation fails.\n * @template M - The model type extending Model\n * @template F - The repository flags type, defaults to RepositoryFlags\n * @template C - The context type, defaults to Context<F>\n * @class Repository\n * @example\n * class UserModel extends Model {\n *   @id()\n *   id: string;\n *\n *   @required()\n *   @minLength(3)\n *   name: string;\n * }\n *\n * class UserRepository extends Repository<UserModel> {\n *   constructor() {\n *     super(UserModel);\n *   }\n *\n *   async create(model: UserModel): Promise<UserModel> {\n *     // Implementation with automatic validation\n *     return model;\n *   }\n * }\n *\n * // Using the repository\n * const repo = new UserRepository();\n * try {\n *   const user = await repo.create({ name: 'Jo' }); // Will throw ValidationError\n * } catch (error) {\n *   console.error(error); // ValidationError: name must be at least 3 characters\n * }\n */\nexport abstract class Repository<\n  M extends Model<boolean>,\n  F extends RepositoryFlags = RepositoryFlags,\n  C extends Context<F> = Context<F>,\n> extends BaseRepository<M, F, C> {\n  protected constructor(clazz?: Constructor<M>) {\n    super(clazz);\n  }\n\n  /**\n   * @description Prepares a model for creation with validation.\n   * @summary Overrides the base createPrefix method to add validation checks.\n   * Creates a context, instantiates a new model, enforces decorators, and validates\n   * the model before allowing creation to proceed.\n   * @param {M} model - The model instance to prepare for creation\n   * @param {any[]} args - Additional arguments for the create operation\n   * @return A promise that resolves to an array containing the validated model and context arguments\n   * @throws {ValidationError} If the model fails validation\n   */\n  protected override async createPrefix(\n    model: M,\n    ...args: any[]\n  ): Promise<[M, ...any[]]> {\n    const contextArgs = await Context.args(\n      OperationKeys.CREATE,\n      this.class,\n      args\n    );\n    model = new this.class(model);\n    await enforceDBDecorators(\n      this,\n      contextArgs.context,\n      model,\n      OperationKeys.CREATE,\n      OperationKeys.ON\n    );\n\n    const errors = await Promise.resolve(model.hasErrors());\n    if (errors) throw new ValidationError(errors.toString());\n\n    return [model, ...contextArgs.args];\n  }\n\n  /**\n   * @description Prepares multiple models for creation with validation.\n   * @summary Overrides the base createAllPrefix method to add validation checks for multiple models.\n   * Creates a context, instantiates new models, enforces decorators, and validates\n   * each model before allowing creation to proceed. Collects validation errors from all models.\n   * @param {M[]} models - The array of model instances to prepare for creation\n   * @param {any[]} args - Additional arguments for the create operation\n   * @return {Promise<any[]>} A promise that resolves to an array containing the validated models and context arguments\n   * @throws {ValidationError} If any model fails validation, with details about which models failed\n   */\n  protected override async createAllPrefix(\n    models: M[],\n    ...args: any[]\n  ): Promise<any[]> {\n    const contextArgs = await Context.args(\n      OperationKeys.CREATE,\n      this.class,\n      args\n    );\n    await Promise.all(\n      models.map(async (m) => {\n        m = new this.class(m);\n        await enforceDBDecorators(\n          this,\n          contextArgs.context,\n          m,\n          OperationKeys.CREATE,\n          OperationKeys.ON\n        );\n        return m;\n      })\n    );\n\n    const modelsValidation = await Promise.all(\n      models.map((m) => Promise.resolve(m.hasErrors()))\n    );\n\n    const errors = modelsValidation.reduce(\n      (accum: string | undefined, e, i) => {\n        if (e)\n          accum =\n            typeof accum === \"string\"\n              ? accum + `\\n - ${i}: ${e.toString()}`\n              : ` - ${i}: ${e.toString()}`;\n        return accum;\n      },\n      undefined\n    );\n\n    if (errors) throw new ValidationError(errors);\n    return [models, ...contextArgs.args];\n  }\n\n  /**\n   * @description Prepares a model for update with validation.\n   * @summary Overrides the base updatePrefix method to add validation checks.\n   * Creates a context, validates the primary key, retrieves the existing model,\n   * merges the old and new models, enforces decorators, and validates the model\n   * before allowing the update to proceed.\n   * @param {M} model - The model instance to prepare for update\n   * @param {any[]} args - Additional arguments for the update operation\n   * @return A promise that resolves to an array containing the validated model and context arguments\n   * @throws {InternalError} If the model doesn't have a primary key value\n   * @throws {ValidationError} If the model fails validation\n   */\n  protected override async updatePrefix(\n    model: M,\n    ...args: any[]\n  ): Promise<[M, ...args: any[]]> {\n    const contextArgs = await Context.args(\n      OperationKeys.UPDATE,\n      this.class,\n      args\n    );\n    const pk = (model as any)[this.pk];\n    if (!pk)\n      throw new InternalError(\n        `No value for the Id is defined under the property ${this.pk as string}`\n      );\n\n    const oldModel: M = await this.read(pk);\n\n    model = this.merge(oldModel, model);\n\n    await enforceDBDecorators(\n      this,\n      contextArgs.context,\n      model,\n      OperationKeys.UPDATE,\n      OperationKeys.ON,\n      oldModel\n    );\n\n    const errors = await Promise.resolve(model.hasErrors(oldModel as any));\n    if (errors) throw new ValidationError(errors.toString());\n    return [model, ...contextArgs.args];\n  }\n\n  /**\n   * @description Prepares multiple models for update with validation.\n   * @summary Overrides the base updateAllPrefix method to add validation checks for multiple models.\n   * Creates a context, validates primary keys, retrieves existing models, merges old and new models,\n   * enforces decorators, and validates each model before allowing updates to proceed.\n   * Collects validation errors from all models.\n   * @param {M[]} models - The array of model instances to prepare for update\n   * @param {any[]} args - Additional arguments for the update operation\n   * @return A promise that resolves to an array containing the validated models and context arguments\n   * @throws {InternalError} If any model doesn't have a primary key value\n   * @throws {ValidationError} If any model fails validation, with details about which models failed\n   */\n  protected override async updateAllPrefix(models: M[], ...args: any[]) {\n    const contextArgs = await Context.args(\n      OperationKeys.UPDATE,\n      this.class,\n      args\n    );\n    const ids = models.map((m) => {\n      const id = m[this.pk];\n      if (typeof id === \"undefined\")\n        throw new InternalError(\n          `No value for the Id is defined under the property ${this.pk as string}`\n        );\n      return id as string;\n    });\n    const oldModels: M[] = await this.readAll(ids, ...contextArgs.args);\n    models = models.map((m, i) => this.merge(oldModels[i], m));\n    await Promise.all(\n      models.map((m, i) =>\n        enforceDBDecorators(\n          this,\n          contextArgs.context,\n          m,\n          OperationKeys.UPDATE,\n          OperationKeys.ON,\n          oldModels[i]\n        )\n      )\n    );\n\n    const modelsValidation = await Promise.all(\n      models.map((m, i) => Promise.resolve(m.hasErrors(oldModels[i] as any)))\n    );\n\n    const errors = modelsValidation.reduce(\n      (accum: string | undefined, e, i) => {\n        if (e)\n          accum =\n            typeof accum === \"string\"\n              ? accum + `\\n - ${i}: ${e.toString()}`\n              : ` - ${i}: ${e.toString()}`;\n        return accum;\n      },\n      undefined\n    );\n\n    if (errors) throw new ValidationError(errors);\n    return [models, ...contextArgs.args];\n  }\n\n  /**\n   * @description Creates a reflection key for database operations.\n   * @summary Generates a key for storing metadata in the reflection system by prefixing\n   * the provided key with the database reflection prefix.\n   * @param {string} key - The base key to prefix\n   * @return {string} The prefixed reflection key\n   */\n  static key(key: string) {\n    return DBKeys.REFLECT + key;\n  }\n}\n"]}