CODEWITHSUNDEEP
laravelgraphqllaravel-lighthouse
user2682025
user2682025

Reputation: 804

How to query a third party package trait in Laravel lighthouse

I read Laravel Lighthouse documentation and searched around the web I did not find how to query a trait in a third party package in Laravel. I'm using the qirolab/laravel-reactions package, it has the reactionSummary() trait. I was asking how can I add this relation in the lighthouse query?

type Post {
    id: ID!
    title: String!
    excerpt: String!
    image_url: String!
    slug: String!
    source: Source! @belongsTo
    reactionSummary: ???????
    created_at: DateTime!
    updated_at: DateTime!
}

I have a purpose with my question beside solving my issue, understanding how lighthouse work with packages or how to integrate third party packages with lighthouse?

Upvotes: 0

Views: 179

Answers (1)

jobnomade
jobnomade

Reputation: 180

You need to define the schema for the reaction model in graphql and in the post schema you need to define an array of the reaction type.

According to the model (https://github.com/qirolab/laravel-reactions/blob/master/src/Models/Reaction.php) the reaction graphql schema would look something like this:

type Reaction {
   reactBy: User! @belongsTo
   type: String
   reactable: Reactable! @morphTo
}

Your post schema would change to

type Post {
    id: ID!
    title: String!
    excerpt: String!
    image_url: String!
    slug: String!
    source: Source! @belongsTo
    reactionSummary: [Reaction]
    created_at: DateTime!
    updated_at: DateTime!
}

As I can see from the migration file https://github.com/qirolab/laravel-reactions/blob/master/migrations/2018_07_10_000000_create_reactions_table.php. The reaction has a polymorphic relation.

That means the returning type can vary depending on which kind of model is set as the reactable_type in the field. Therefore you need to define your own Union type.

A Union is an abstract type that simply enumerates other Object Types. They are similar to interfaces in that they can return different types, but they can not have fields defined.

Source: https://lighthouse-php.com/5/the-basics/types.html#union

See also polymorphic relations and the union section: https://lighthouse-php.com/5/eloquent/polymorphic-relationships.html#one-to-one

I hope that gives you the direction on how you can proceed.

Upvotes: 0

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