https://github.com/eagletmt/sqlx-derive-with

Derive `sqlx::FromRow` specific to the given database
https://github.com/eagletmt/sqlx-derive-with

Last synced: 2 months ago
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Derive `sqlx::FromRow` specific to the given database

• Host: GitHub
• URL: https://github.com/eagletmt/sqlx-derive-with
• Owner: eagletmt
• License: mit
• Created: 2022-08-05T15:55:50.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2022-08-06T11:25:33.000Z (over 2 years ago)
• Last Synced: 2024-08-08T16:50:19.360Z (5 months ago)
• Language: Rust
• Size: 13.7 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# sqlx-derive-with

Derive `sqlx::FromRow` specific to the given database.

sqlx-derive-with supports `decode` attribute to use custom decoder function to specific columns.

This feature is not (and unable to be, I think) supported by upstream `sqlx::FromRow`.

## Usage

```rust

use sqlx::Connection as _;

#[derive(sqlx_derive_with::FromRow)]

#[sqlx_with(db = "sqlx::Sqlite")]

struct Row {

    #[sqlx_with(decode = "split_x")]

    x: (i64, i64),

    y: String,

}

fn split_x(index: &str, row: &sqlx::sqlite::SqliteRow) -> sqlx::Result<(i64, i64)> {

    use sqlx::Row as _;

    let n: i64 = row.try_get(index)?;

    Ok((n, n + 2))

}

#[tokio::main]

async fn main() {

    let mut conn = sqlx::SqliteConnection::connect(":memory:").await.unwrap();

    let row: Row = sqlx::query_as("select 10 as x, 'hello' as y")

        .fetch_one(&mut conn)

        .await

        .unwrap();

    assert_eq!(row.x, (10, 12));

    assert_eq!(row.y, "hello");

}

```