⛓️ honst

The name: I wanted it to be "honest", but it was occupied, so I removed a letter, and it became "honst".

Data Integrity fixer for an object matrix.

Use Cases

On editing a joined matrix data needs the data integrity to be kept.
Keeping your local state correct.

Demo

You can play with honst on CodeSandbox:

Overview

const data = [
  { username: "johndoe", name: "John", surname: "Doe", age: "22" },
  { username: "johndoe", name: "John", surname: "Doe", age: "25" },
  { username: "johndoe2", name: "John", surname: "Doe", age: "22" },
  { username: "johndoe2", name: "John", surname: "Doez", age: "22" },
]

According to username field, there are many integrity issues around the array. So let honst fix these:

[
  { username: "johndoe", name: "John", surname: "Doe", age: 22 },
-  { username: "johndoe", name: "John", surname: "Doe", age: 25 },
+  { username: "johndoe", name: "John", surname: "Doe", age: 22 },
  { username: "johnapple", name: "John", surname: "Apple", age: 29 },
- { username: "johnapple", name: "John", surname: "Orange", age: 22 },
+ { username: "johnapple", name: "John", surname: "Apple", age: 29 },
]

Referencing to data[0].username, name, surname, and age should be John, Doe and 22.
But data[1].age is 25 and it should be fixed.
Referencing to data[3].username, name, surname, and age should be John, Apple and 29.
But data[1].age is 25, data[1].surname is Orange and these should be fixed as well.

honst simply fixes these integrity issues.

Usage

Install using npm or yarn:

npm install honst
# or
yarn add honst

Now you can start:

import { honst } from 'honst';

const { data, delta } = honst({
  data: [
    { username: "johndoe", name: "John", surname: "Doe", age: "22" },
    { username: "johndoe", name: "John", surname: "Doe", age: "25" }
  ],
  pivot: 0,     // an index number, "scan" or "reverse-scan"
  delta: true,  // boolean
  rules: {
    // the ruleset of integrity
    // e.g. we want all names, surnames and ages to be same according to "username"
    name: ["username"],
    surname: ["username"],
    age: ["username"],
  }
})

This will generate following data:

const fixedData = {
  data: [
    { username: "johndoe", name: "John", surname: "Doe", age: "22" },
    { username: "johndoe", name: "John", surname: "Doe", age: "22" },
  ],
  delta: [
    {
      candidatePath: "age", // the path of the field
      falseValue: "25", // the wrong value
      candidateValue: "22", // the candidate value
      pivot: 0, // the pivot row index
      candidateIndex: 1, // the false row index
    }
  ]
}

Scanning and Reverse Scanning

Just pass pivot value scan or reverse-scan.

If you want to fix all the rows from top-down or bottom-up, this will scan the data and fix'em all.

const { data, delta } = honst({
  data: [
    { username: "johndoe", name: "John", surname: "Doe", age: "22" },
    { username: "johndoe", name: "John", surname: "Doe", age: "25" },
    { username: "johndoe2", name: "John", surname: "Doe", age: "22" },
    { username: "johndoe2", name: "John", surname: "Doez", age: "22" },
  ],
  pivot: "scan",
  delta: true,
  rules: {
    name: ["username"],
    surname: ["username"],
    age: ["username"],
  }
})

This will generate the following:

const fixedData = [
  { username: "johndoe", name: "John", surname: "Doe", age: "22" },
  { username: "johndoe", name: "John", surname: "Doe", age: "22" },
  { username: "johndoe2", name: "John", surname: "Appleseed", age: "22" },
  { username: "johndoe2", name: "John", surname: "Appleseed", age: "22" },
]

If you select scan the upper rows will be fixed first, and matching rows below will be updated accordingly. If you select reverse-scan it'll start fixing from bottom and scan to the top, so the bottom rows will be assumed correct.

Nested Objects?

Yes it supports nested objects as well.

const { data, delta } = honst({
  data: [
    // ... some nested data
  ],
  rules: {
    'user.name': ["account.username"],
    'user.surname': ["account.username"],
    'profile.age': ["account.username"],
  }
})

Parameters

Name	What's?	Type	Value
data	list to check	Array	`object[]`
rules	determines which area the areas will be controlled according to.	Array	`object`
pivot	the index of the data considered correct in the list.	Number or String	`number
delta	Used to get information about data corrected as a result of the operations	Boolean	`boolean` (Optional)

Result in delta :


candidatePath	modified path
falseValue	modified incorrect value
candidateValue	new value
pivot	correct value index in data
candidateIndex	modified value index in data

Contribution

Clone and edit the source as you wish.
Please do not forget to add tests.
Write a descriptive PR.

License

This project uses MIT license.

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