@decaf-ts/db-decorators
Version:
Agnostic database decorators and repository
85 lines (83 loc) • 14.7 kB
JavaScript
import { enforceDBDecorators } from "./utils";
import { OperationKeys } from "../operations/constants";
import { InternalError, ValidationError } from "./errors";
import { BaseRepository } from "./BaseRepository";
import { DBKeys } from "../model/constants";
import { Context } from "./Context";
export class Repository extends BaseRepository {
constructor(clazz) {
super(clazz);
}
async createPrefix(model, ...args) {
const contextArgs = await Context.args(OperationKeys.CREATE, this.class, args);
model = new this.class(model);
await enforceDBDecorators(this, contextArgs.context, model, OperationKeys.CREATE, OperationKeys.ON);
const errors = model.hasErrors();
if (errors)
throw new ValidationError(errors.toString());
return [model, ...contextArgs.args];
}
async createAllPrefix(models, ...args) {
const contextArgs = await Context.args(OperationKeys.CREATE, this.class, args);
await Promise.all(models.map(async (m) => {
m = new this.class(m);
await enforceDBDecorators(this, contextArgs.context, m, OperationKeys.CREATE, OperationKeys.ON);
return m;
}));
const errors = models
.map((m) => m.hasErrors())
.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 ValidationError(errors);
return [models, ...contextArgs.args];
}
async updatePrefix(model, ...args) {
const contextArgs = await Context.args(OperationKeys.UPDATE, this.class, args);
const pk = model[this.pk];
if (!pk)
throw new 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 enforceDBDecorators(this, contextArgs.context, model, OperationKeys.UPDATE, OperationKeys.ON, oldModel);
const errors = model.hasErrors(oldModel);
if (errors)
throw new ValidationError(errors.toString());
return [model, ...contextArgs.args];
}
async updateAllPrefix(models, ...args) {
const contextArgs = await Context.args(OperationKeys.UPDATE, this.class, args);
const ids = models.map((m) => {
const id = m[this.pk];
if (!id)
throw new 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) => enforceDBDecorators(this, contextArgs.context, m, OperationKeys.UPDATE, OperationKeys.ON, oldModels[i])));
const errors = models
.map((m, i) => m.hasErrors(oldModels[i], m))
.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 ValidationError(errors);
return [models, ...contextArgs.args];
}
static key(key) {
return DBKeys.REFLECT + key;
}
}
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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\";\n\nexport abstract class Repository<M extends Model> extends BaseRepository<M> {\n  protected constructor(clazz?: Constructor<M>) {\n    super(clazz);\n  }\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 = model.hasErrors();\n    if (errors) throw new ValidationError(errors.toString());\n\n    return [model, ...contextArgs.args];\n  }\n\n  protected async createAllPrefix(models: M[], ...args: any[]): 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    const errors = models\n      .map((m) => m.hasErrors())\n      .reduce((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      }, undefined);\n    if (errors) throw new ValidationError(errors);\n    return [models, ...contextArgs.args];\n  }\n\n  protected 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}`\n      );\n\n    const oldModel = 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 = model.hasErrors(oldModel);\n    if (errors) throw new ValidationError(errors.toString());\n    return [model, ...contextArgs.args];\n  }\n\n  protected 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 as any)[this.pk];\n      if (!id)\n        throw new InternalError(\n          `No value for the Id is defined under the property ${this.pk}`\n        );\n      return id;\n    });\n    const oldModels = 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 errors = models\n      .map((m, i) => m.hasErrors(oldModels[i], m))\n      .reduce((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      }, undefined);\n    if (errors) throw new ValidationError(errors);\n    return [models, ...contextArgs.args];\n  }\n\n  static key(key: string) {\n    return DBKeys.REFLECT + key;\n  }\n}\n"]}