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objection-gen-cli

Objection model generator

This package allow you to generate objection model class.

Like this one:


import { Model } from 'objection';
export class User extends Model {
    public id: number;
    public firstName?: string;
    static get tableName() {
        return 'users';
    }
    static get relationMappings() {
        const { Product } = require('./product');
        return {
            children: {
                relation: Model.HasManyRelation,
                modelClass: User,
                join: {
                    from: 'users.id',
                    to: 'users.parent_id'
                }
            },
            parent: {
                relation: Model.HasOneRelation,
                modelClass: User,
                join: {
                    from: 'users.parent_id',
                    to: 'users.id'
                }
            },
            userProducts: {
                relation: Model.ManyToManyRelation,
                modelClass: Product,
                join: {
                    from: 'users.id',
                    through: {
                        from: 'user_product.user_id',
                        to: 'user_product.product_id'
                    },
                    to: 'products.id'
                }
            },
        };
    }

}`

`Install as dev dependency:`

`yarn add -D objection-gen-cli`

Or:

`npm install -D objection-gen-cli`

`Usage:`

`npx objection-cli`

Or (after install):

`yarn run objection-cli``

How does it work ?

This script will generate a prompt that will guide you in building your models.

Note: The models generated should have a readable look. I dont plan to allow to configure the syntax (quote, commas ...). Your linter should take care of that.

Extend it:

All main methods should be exposed so you can use them, but at the moment it's not really customisable.

Things left to do:

- Testing
- Shortcut for id field generation
- Model update during prompts
- Add cli argument to avoid questions (folder name, extention, id ...)
- Add relations to properties (need to resolve circular deps first)
- Load existing models from the folder to allow relations to them (might be tricky)
- Generate a basic knex migration file (might be tricky)
- Remove remove all dependencies but prompts

If you have any idea of things you would like to add, feel free to fill an issue !

I hope you enjoy it :)

Other

Objection relations docs

Thanks a lot for making objection guys, it's an awesome tool !