Custom type for table primary key

[AngelOnFira]

PR Info

This PR addresses ideas from #1310. It isn't complete, but I wanted to start by adding some implementation for my ideas. The idea of this feature is to provide a type unique for each primary key of each table. This will make it easier to pass around primary key variables and know what table they reference.

• Dependencies:
  • will be dependant on a change in sea-query

New Features

This currently just adds a custom Rust type for compact entity generation. For example, this model:

#[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq, Serialize, Deserialize)]
#[sea_orm(table_name = "challenge")]
pub struct Model {
    #[sea_orm(primary_key)]
    pub id: i32,
}

would become:

pub type ChallengeTablePK = i32; // <-- type defined here

#[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq, Serialize, Deserialize)]
#[sea_orm(table_name = "challenge")]
pub struct Model {
    #[sea_orm(primary_key)]
    pub id: ChallengeTablePK, // <-- id references type
}

Breaking Changes

This won't add any breaking changes as it will be behind a CLI argument, and will not be enabled by default.

Changes

• Add CLI argument for adding custom types to table primary keys
• Change how entity files are generated

TODO

There are several items that have not yet been implemented:

• Adding this feature to expanded entity form
• Figuring out how to handle multiple primary keys on a table
• Verify this works correctly with queries
• Complete testing for more complex types
• Squash commits on this branch