feat: add meta to all relations

[zaosoula]

🔗 Linked issue

❓ Type of change

• [ ] 🐞 Bug fix (a non-breaking change that fixes an issue)
• [ ] 👌 Enhancement (improving an existing functionality like performance)
• [x] ✨ New feature (a non-breaking change that adds functionality)
• [ ] ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

Add the meta property to relations like on classic column to convey additional data for third party libraries

📝 Checklist

• [ ] I have linked an issue or discussion.
• [ ] I have updated the documentation accordingly.

[thetutlage]

Hello @zaosoula

Can you please share what use-cases we are trying to serve by adding the meta property to relationships?

[zaosoula]

@thetutlage Hi, we use meta to define the options of editable field for the frontend, it allow use to automaticaly generate view, and forms based on the model

import { BaseModel, column, manyToMany } from '@adonisjs/lucid/orm'
import { compose } from '@adonisjs/core/helpers'
import { Filterable } from 'adonis-lucid-filter'
import ProductFilter from '#filters/product_filter'
import { CommonModel } from '#mixins/common_model'
import { EntityModel } from '#mixins/entity_model'
import User from '#models/user'
import ProductCategory from './product_category.js'
import type { ManyToMany } from '@adonisjs/lucid/types/relations'

export default class Product extends compose(
  BaseModel,
  Filterable,
  CommonModel({ userModel: User }),
  EntityModel({ userModel: User })
) {
  static $filter = () => ProductFilter

  @column({
    meta: {
      label: 'Nom',
      type: 'text',
      summary: true,
    },
  })
  declare name: string

  @column({
    meta: {
      label: 'Récurrent',
      type: 'checkbox',
      summary: true,
    },
  })
  declare isRecurrent: boolean

  @manyToMany(() => ProductCategory, {
    meta: {
      label: 'Catégories',
      type: 'autocomplete',
      options: {
        resource: 'product-category',
        label: 'name',
      },
      summary: true,
    },
  })
  declare categories: ManyToMany<typeof ProductCategory>
}

[thetutlage]

Thanks 👍