geekorm_core::backends

Trait GeekConnection

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pub trait GeekConnection {
    type Connection;

    // Provided methods
    async fn create_table<T>(connection: &Self::Connection) -> Result<(), Error>
       where T: TableBuilder + QueryBuilderTrait + Sized + Serialize + DeserializeOwned { ... }
    async fn row_count(
        connection: &Self::Connection,
        query: Query,
    ) -> Result<i64, Error> { ... }
    async fn execute<T>(
        connection: &Self::Connection,
        query: Query,
    ) -> Result<(), Error>
       where T: DeserializeOwned { ... }
    async fn query<T>(
        connection: &Self::Connection,
        query: Query,
    ) -> Result<Vec<T>, Error>
       where T: DeserializeOwned { ... }
    async fn query_first<T>(
        connection: &Self::Connection,
        query: Query,
    ) -> Result<T, Error>
       where T: DeserializeOwned { ... }
    async fn query_raw(
        connection: &Self::Connection,
        query: Query,
    ) -> Result<Vec<HashMap<String, Value>>, Error> { ... }
}
Expand description

GeekConnection is the trait that all backends must implement to be able to interact with the database.

Required Associated Types§

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type Connection

Native Connection

Provided Methods§

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async fn create_table<T>(connection: &Self::Connection) -> Result<(), Error>
where T: TableBuilder + QueryBuilderTrait + Sized + Serialize + DeserializeOwned,

Create a table in the database

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async fn row_count( connection: &Self::Connection, query: Query, ) -> Result<i64, Error>

Run a SELECT Count query on the database and return the number of rows

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async fn execute<T>( connection: &Self::Connection, query: Query, ) -> Result<(), Error>
where T: DeserializeOwned,

Execute a query on the database and do not return any rows

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async fn query<T>( connection: &Self::Connection, query: Query, ) -> Result<Vec<T>, Error>
where T: DeserializeOwned,

Query the database with an active Connection and Query

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async fn query_first<T>( connection: &Self::Connection, query: Query, ) -> Result<T, Error>
where T: DeserializeOwned,

Query the database with an active Connection and Query and return the first row.

Note: Make sure the query is limited to 1 row to avoid retrieving multiple rows and only using the first one.

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async fn query_raw( connection: &Self::Connection, query: Query, ) -> Result<Vec<HashMap<String, Value>>, Error>

Query the database with an active Connection and Query and return a list of GeekORM Values.

Object Safety§

This trait is not object safe.

Implementors§