impl create/update/delete mutations

[floffel]

Hi 👋
First of all: Thank you for your work, I already learned a lot! :)
I experimented with graphql and SeaQL and wanted some mutations... So I tried to implement it, following the style of the existing macros.

This PR introduces the new derive macro seaography::macros::Mutation for every model/entity and #[seaography_mutation(skip=true)] for every record to be skipped.

I would love to hear for you if this code could be of any use.

PR Info

• Closes Future: create one/many mutations #9 Add update mutation #10 Add delete one/many mutations #11

New Features

• create mutations
• update mutations
• delete mutations

Usage example:

examples/*/src/mutation_root.rs:

use async_graphql::MergedObject;

#[derive(MergedObject, Default)]
pub struct MutationRoot(crate::entities::actor::actorMutation, crate::entities::address::addressMutation);

examples/*/src/entities/actor.rs:

use sea_orm::entity::prelude::*;

#[derive(
    Clone,
    Debug,
    PartialEq,
    DeriveEntityModel,
    async_graphql::SimpleObject,
    seaography::macros::Filter,
    seaography::macros::Mutation
)]
#[sea_orm(table_name = "actor")]
#[graphql(complex)]
#[graphql(name = "Actor")]
pub struct Model {
    #[seaography_mutation(skip=true)]
    #[sea_orm(primary_key)]
    pub actor_id: i32,
    pub first_name: String,
    pub last_name: String,
    #[seaography_mutation(skip=true)]
    pub last_update: DateTime,
}

...

examples/*/src/entities/address.rs:

use sea_orm::entity::prelude::*;

#[derive(
    Clone,
    Debug,
    PartialEq,
    DeriveEntityModel,
    async_graphql::SimpleObject,
    seaography::macros::Filter,
    seaography::macros::Mutation
)]
#[sea_orm(table_name = "address")]
#[graphql(complex)]
#[graphql(name = "Address")]
pub struct Model {
    #[seaography_mutation(skip=true)]
    #[sea_orm(primary_key)]
    pub address_id: i32,
    pub address: String,
    pub address2: Option<String>,
    pub district: String,
    pub city_id: i16,
    pub postal_code: Option<String>,
    pub phone: String,
    #[seaography_mutation(skip=true)]
    pub last_update: DateTime,
}

examples/*/src/main.rs

    let mut schema = Schema::build(QueryRoot, MutationRoot::Default(), EmptySubscription)
        .data(database)
        .data(orm_dataloader);

[billy1624]

Hey @floffel, looks promising!! I would like to see the mutation in action. Perhaps you can alter one of the example just like you descripted and add a mutation_tests.rs to the examples/*/test folder.

[billy1624]

@karatakis any ideas?

[karatakis]

@billy1624 it needs to be ported to the functional API. After we finish the functional API I can continue the work. With the functional API we can skip the derive macro, so the task would be easier to implement.

[billy1624]

Thanks @karatakis for the input!! I agree, we should come back to this after we finished implementing the functional API.