Akita  

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Akita - Mini orm for rust

This Crate offers:

• MySql database's helper in pure rust;
• SQLite database's helper in pure rust;
• A mini orm framework (With MySQL/SQLite)。

Features:

• Other Database support, i.e. support Oracle, MSSQL...;
• support of named parameters for custom condition;

---

You may be looking for:

• An overview of Akita
• Examples
• API documentation
• Release notes

Akita in action

Click to show Cargo.toml. Run this code in the playground.

[dependencies]

# The core APIs, including the Table traits. Always
# required when using Akita. using #[derive(AkitaTable)] 
# to make Akita work with structs defined in your crate.
akita = { version = "0.4.0", features = ["akita-mysql"] }

API Documentation

use akita::*;

/// Annotion Support: AkitaTable、table_id、field (name, exist, fill(function, mode))
#[derive(AkitaTable, Clone, Default)]
#[table(name = "t_system_user")]
pub struct User {
    #[table_id(name = "id")]
    pub pk: i64,
    pub id: String,
    pub headline: Option<NaiveDateTime>,
    /// 状态
    pub status: u8,
    /// 用户等级 0.普通会员 1.VIP会员
    pub level: u8,
    /// 生日
    pub birthday: Option<NaiveDate>,
    /// 性别
    pub gender: u8,
    #[field(exist = "false", fill="is_org_build")]
    pub is_org: bool,
    #[field(name = "token", fill(function = "token_build", mode="default"))]
    pub url_token: String,
}

static area: &str = "china"; 

fn is_org_build() -> bool {
    area.eq("china")
}

fn token_build() -> String {
    // generate the token
    todo!()
}

CRUD with Akita

fn main() {
    let cfg = AkitaConfig::new(String::from("mysql://root:password@localhost:3306/akita"))
        .set_connection_timeout(Duration::from_secs(6))
        .set_log_level(LogLevel::Info).set_max_size(6);
    let akita = Akita::new(cfg).expect("must be ok");
    // The Wrapper to build query condition
    let wrapper = Wrapper::new()
        .eq("username", "ussd") // username = 'ussd'
        .gt("age", 1) // age > 1
        .lt("age", 10) // age < 10
        .inside("user_type", vec!["admin", "super"]) // user_type in ('admin', 'super')
        .and(|wrapper| { // or
            wrapper.like("username", &name)
                .or_direct().like("username", &name)
        });
    // CRUD with Akita
    let insert_id: Option<i32> = akita.save(&User::default()).unwrap();
    let _ = akita.save_batch(&[&User::default()]).unwrap();
    // Update with wrapper
    let res = akita.update(&User::default(), Wrapper::new().eq("name", "Jack")).unwrap();
    // Update with primary id
    let res = akita.update_by_id(&User::default());
    // Query return List
    let list: Vec<User> = akita.list(Wrapper::new().eq("name", "Jack")).unwrap();
    // Query return Page
    let pageNo = 1;
    let pageSize = 10;
    let page: IPage<User> = akita.page(pageNo, pageSize, Wrapper::new().eq("name", "Jack")).unwrap();
    // Remove with wrapper
    let res = akita.remove::<User>(Wrapper::new().eq("name", "Jack")).unwrap();
    // Remove with primary id
    let res = akita.remove_by_id::<User,_>(0).unwrap();
    // Get the record count
    let count = akita.count::<User>(Wrapper::new().eq("name", "Jack")).unwrap();
    // Query with original sql
    let user: User = akita.exec_first("select * from t_system_user where name = ? and id = ?", ("Jack", 1)).unwrap();
    // Or
    let user: User = akita.exec_first("select * from t_system_user where name = :name and id = :id", params! {
        "name" => "Jack",
        "id" => 1
    }).unwrap();
    let res = akita.exec_drop("select now()", ()).unwrap();

    // Transaction
    akita.start_transaction().and_then(|mut transaction| {
        let list: Vec<User> = transaction.list(Wrapper::new().eq("name", "Jack"))?;
        let insert_id: Option<i32> = transaction.save(&User::default())?;
        transaction.commit()
    }).unwrap();
}

CRUD with Entity

fn main() {
    let cfg = AkitaConfig::new(String::from("mysql://root:password@localhost:3306/akita"))
        .set_connection_timeout(Duration::from_secs(6))
        .set_log_level(LogLevel::Info).set_max_size(6);
    let akita = Akita::new(cfg).expect("must be ok");
    // CRUD with Entity
    let model = User::default();
    // insert
    let insert_id = model.insert::<Option<i32>, _>(&akita).unwrap();
    // update
    let res = model.update_by_id::<_>(&akita).unwrap();
    // delete
    let res = model.delete_by_id::<i32,_>(&akita, 1).unwrap();
    // list
    let list = User::list::<_>(Wrapper::new().eq("name", "Jack"), &akita).unwrap();
    // page
    let page = User::page::<_>(pageNo, pageSize, Wrapper::new().eq("name", "Jack"), &akita).unwrap();
}

Fast with sql

fn main() {
    pub static AK:Lazy<Akita> = Lazy::new(|| {
        let mut cfg = AkitaConfig::new("xxxx".to_string()).set_max_size(5).set_connection_timeout(Duration::from_secs(5)).set_log_level(LogLevel::Info);
        Akita::new(cfg).unwrap()
    });
    
    #[sql(AK,"select * from mch_info where mch_no = ?")]
    fn select_example(name: &str) -> Vec<MchInfo> { todo!() }
        
    // or:
    #[sql(AK,"select * from mch_info where mch_no = ?")]
    fn select_example2(ak: &AKita, name: &str) -> Vec<MchInfo> { todo!() }
    // ...
    
}

Wrapper

let mut wrapper = Wrapper::new().like(true, "column1", "ffff")
.eq(true, "column2", 12)
.eq(true, "column3", "3333")
.inside(true, "column4", vec![1,44,3])
.not_between(true, "column5", 2, 8)
.set(true, "column1", 4);

Feature.

• akita-mysql - to use mysql
• akita-sqlite - to use sqlite
• akita-auth - to use some auth mehod
• akita-fuse - to use some fuse feature

Annotions.

• AkitaTable - to make Akita work with structs
• FromValue - from value with akita
• ToValue - to value with akita
• table_id - to make Table Ident
• field - to make struct field with own database.
• name - work with column, make the table's field name. default struct' field name.
• exist - ignore struct's field with table. default true.

Support Field Types.

• Option<T>
• u8, u32, u64
• i32, i64
• usize
• bool
• f32, f64
• str, String
• serde_json::Value
• NaiveDate, NaiveDateTime

Developing

To setup the development envrionment run cargo run.

Contributers

MrPan <[email protected]>

Getting help

Akita is a personal project. At the beginning, I just like Akita dog because of my hobbies. I hope this project will grow more and more lovely. Many practical database functions will be added in the future. I hope you can actively help this project grow and put forward suggestions. I believe the future will be better and better.

License

^{Licensed under either of Apache License, Version 2.0 or MIT license at your option.}
_{Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in Akita by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.}