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@codersvn/repository

v1.1.0

Published

NF Repository is a abstract layer of Sequelize Application, that make application more easy to understand and flexible to maintain.

Downloads

31

Readme

NF Repository

NF Repository is a abstract layer of Sequelize Application, that make application more easy to understand and flexible to maintain.

You want to know a little more about the Repository pattern? Read this great article.

Table of Contents

  • Installation
  • Methods
  • Usage

Installation

NPM

Execute the following command to get the latest version of the package:

npm install @codersvn/repository

If Yarn

yarn add @codersvn/repository

Methods

RepositoryInterface

  • get()
  • first()
  • paginate(limit = 20)
  • findById(id)
  • create(attributes)
  • update(attributes, id)
  • updateOrCreate(attributes, values)
  • firstOrCreate(attributes, values)
  • deleteById(id)
  • delete()
  • orderBy(column, direction = 'asc');
  • with(relation);
  • has(relation);
  • whereHas(relation, callback);
  • withScope(scope);

Usage

Create a Model

Create your Sequelize Model normally

"use strict";

module.exports = (sequelize, DataTypes) => {
  var Demo = sequelize.define(
    "demo",
    {
      name: DataTypes.STRING,
      type: DataTypes.STRING
    },
    {
      underscored: true
    }
  );

  return Demo;
};

Create a Repository

import models from "your_sequelize_model_folder";
import { Repository } from "@codersvn/repository";

export default class DemoRepository extends Repository {
  Models() {
    return models.product;
  }
}

Use methods

Find all results in Repository

const repository = new DemoRepository();
const items = await repository.get();

Find all results in Repository with pagination

const repository = new DemoRepository();
const items = await repository.paginate(10);

Find item by id

const repository = new DemoRepository();
const item = await repository.findById(123);

Loading the Model relationships

const repository = new DemoRepository();
const items = await repository.with("relation").get();

Find by result by field name

const repository = new DemoRepository();
const items = await repository.where("name", "your_name").get();

Find by result by multiple values in one field

const repository = new DemoRepository();
const items = await repository.whereIn("id", [1, 2, 3, 4, 5]).get();

Find by result by excluding multiple values in one field

const repository = new DemoRepository();
const items = await repository.whereNotIn("id", [6, 7, 8, 9, 10]).get();

Find all using custom scope

const repository = new DemoRepository();
const items = await repository
  .withScope("scope")
  .withScope("another_scope")
  .get();

Create new entry in Repository

const repository = new DemoRepository();
const item = await repository.create(attributes);

Update entry in Repository

const repository = new DemoRepository();
const item = await repository.update(attributes, id);

Delete entry in Repository

const repository = new DemoRepository();
const item = await repository.deleteById(id);

Delete entry in Repository by multiple fields

const repository = new DemoRepository();
const item = await repository
  .where("name", "item_should_be_deleted")
  .where("another_field", "another_case_should_be_deleted")
  .delete();