sweet-local-storage-db

Local Storage DB

A database system in Javascript, which uses localStorage to store data, in order to facilitate their persistence in processes and creation.

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Inicialize

const db = new SweetLocalDB(<dbName>);

Check if the database has been initialized

const isInit = db.dbHasBeenInitialized();

Create Table

bd.createTable(<tableName>,<arrayColumnsName>);

Get all Tables

const tables = db.getAllTables();

get table by name

const table = db.getTable(<table-name>);

update the table

  const table = db.updateTable(<table-name>,{
    name:<new-table-name><optional>,
    updateCols:{
        remove:[<remove-items-list>]<optional>,
        add:[<add-items-list>']<optional>,
        update:{
            <new-column>:<old-column>
        }<optional>
    }
  });

const table = db.updateTable("users", {
  name: "clients",
  updateCols: {
    remove: ["last_name", "first_name"],
    add: ["full_name"],
    update: {
      password: "pass",
    },
  },
});

delete the table

const table = db.removeTable(<table-name>);

CRUD

Insert

const data = db.insert("<table-name>", {
  name: "John Doe",
  email: "jhon@doe.com",
  password: "123456",
});

or

const data = db.insert("<table-name>", [
  {
    name: "John Doe",
    email: "jhon@doe.com",
    password: "123456",
  },
  {
    name: "Doe John",
    email: "email@email.com",
    password: "654321",
  },
]);

Update

const data = db.update('<table-name>',{<data>},'<find>','<condition>','<where>');

const data = db.update('users',{password:'654321'},'$id','=',3);

Conditions

Read (Get)

Get all items

const data = db.get("users");

Find by

const data1 = db.find("<table-name>", "<find>", "<condition>", "<where>");

const data1 = db.find("users", "full-name", "start", "John");

About the Conditions see the list Conditions

Delete

const data1 = db.find("<table-name>", "<$id>", "<id>");

const data = db.delete("clients", "$id", 2);

Contitions