Trait TryGetableMany

pub trait TryGetableMany: Sized {
    // Required methods
    fn try_get_many(
        res: &QueryResult,
        pre: &str,
        cols: &[String],
    ) -> Result<Self, TryGetError>;
    fn try_get_many_by_index(res: &QueryResult) -> Result<Self, TryGetError>;

    // Provided method
    fn find_by_statement<C>(
        stmt: Statement,
    ) -> SelectorRaw<SelectGetableValue<Self, C>>
       where C: IntoEnumIterator + Iden { ... }
}

An interface to get a tuple value from the query result

Required Methods

fn try_get_many( res: &QueryResult, pre: &str, cols: &[String], ) -> Result<Self, TryGetError>

Get a tuple value from the query result with prefixed column name

fn try_get_many_by_index(res: &QueryResult) -> Result<Self, TryGetError>

Get a tuple value from the query result based on the order in the select expressions

Provided Methods

fn find_by_statement<C>( stmt: Statement, ) -> SelectorRaw<SelectGetableValue<Self, C>>

where C: IntoEnumIterator + Iden,

use sea_orm::{entity::*, query::*, tests_cfg::cake, DeriveIden, EnumIter, TryGetableMany};

#[derive(EnumIter, DeriveIden)]
enum ResultCol {
    Name,
    NumOfCakes,
}

let res: Vec<(String, i32)> =
    <(String, i32)>::find_by_statement::<ResultCol>(Statement::from_sql_and_values(
        DbBackend::Postgres,
        r#"SELECT "cake"."name", count("cake"."id") AS "num_of_cakes" FROM "cake""#,
        [],
    ))
    .all(&db)
    .await?;

assert_eq!(
    res,
    [
        ("Chocolate Forest".to_owned(), 1),
        ("New York Cheese".to_owned(), 1),
    ]
);

assert_eq!(
    db.into_transaction_log(),
    [Transaction::from_sql_and_values(
        DbBackend::Postgres,
        r#"SELECT "cake"."name", count("cake"."id") AS "num_of_cakes" FROM "cake""#,
        []
    ),]
);

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<T0, T1> TryGetableMany for (T0, T1)

where T0: TryGetable, T1: TryGetable,

fn try_get_many( res: &QueryResult, pre: &str, cols: &[String], ) -> Result<Self, TryGetError>

fn try_get_many_by_index(res: &QueryResult) -> Result<Self, TryGetError>

impl<T0, T1, T2> TryGetableMany for (T0, T1, T2)

where T0: TryGetable, T1: TryGetable, T2: TryGetable,

fn try_get_many( res: &QueryResult, pre: &str, cols: &[String], ) -> Result<Self, TryGetError>

fn try_get_many_by_index(res: &QueryResult) -> Result<Self, TryGetError>

impl<T0, T1, T2, T3> TryGetableMany for (T0, T1, T2, T3)

where T0: TryGetable, T1: TryGetable, T2: TryGetable, T3: TryGetable,

fn try_get_many( res: &QueryResult, pre: &str, cols: &[String], ) -> Result<Self, TryGetError>

fn try_get_many_by_index(res: &QueryResult) -> Result<Self, TryGetError>

impl<T0, T1, T2, T3, T4> TryGetableMany for (T0, T1, T2, T3, T4)

where T0: TryGetable, T1: TryGetable, T2: TryGetable, T3: TryGetable, T4: TryGetable,

fn try_get_many( res: &QueryResult, pre: &str, cols: &[String], ) -> Result<Self, TryGetError>

fn try_get_many_by_index(res: &QueryResult) -> Result<Self, TryGetError>

impl<T0, T1, T2, T3, T4, T5> TryGetableMany for (T0, T1, T2, T3, T4, T5)

where T0: TryGetable, T1: TryGetable, T2: TryGetable, T3: TryGetable, T4: TryGetable, T5: TryGetable,

fn try_get_many( res: &QueryResult, pre: &str, cols: &[String], ) -> Result<Self, TryGetError>

fn try_get_many_by_index(res: &QueryResult) -> Result<Self, TryGetError>

impl<T0, T1, T2, T3, T4, T5, T6> TryGetableMany for (T0, T1, T2, T3, T4, T5, T6)

where T0: TryGetable, T1: TryGetable, T2: TryGetable, T3: TryGetable, T4: TryGetable, T5: TryGetable, T6: TryGetable,

fn try_get_many( res: &QueryResult, pre: &str, cols: &[String], ) -> Result<Self, TryGetError>

fn try_get_many_by_index(res: &QueryResult) -> Result<Self, TryGetError>

impl<T0, T1, T2, T3, T4, T5, T6, T7> TryGetableMany for (T0, T1, T2, T3, T4, T5, T6, T7)

where T0: TryGetable, T1: TryGetable, T2: TryGetable, T3: TryGetable, T4: TryGetable, T5: TryGetable, T6: TryGetable, T7: TryGetable,

fn try_get_many( res: &QueryResult, pre: &str, cols: &[String], ) -> Result<Self, TryGetError>

fn try_get_many_by_index(res: &QueryResult) -> Result<Self, TryGetError>

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8> TryGetableMany for (T0, T1, T2, T3, T4, T5, T6, T7, T8)

where T0: TryGetable, T1: TryGetable, T2: TryGetable, T3: TryGetable, T4: TryGetable, T5: TryGetable, T6: TryGetable, T7: TryGetable, T8: TryGetable,

fn try_get_many( res: &QueryResult, pre: &str, cols: &[String], ) -> Result<Self, TryGetError>

fn try_get_many_by_index(res: &QueryResult) -> Result<Self, TryGetError>

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9> TryGetableMany for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9)

where T0: TryGetable, T1: TryGetable, T2: TryGetable, T3: TryGetable, T4: TryGetable, T5: TryGetable, T6: TryGetable, T7: TryGetable, T8: TryGetable, T9: TryGetable,

fn try_get_many( res: &QueryResult, pre: &str, cols: &[String], ) -> Result<Self, TryGetError>

fn try_get_many_by_index(res: &QueryResult) -> Result<Self, TryGetError>

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> TryGetableMany for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10)

where T0: TryGetable, T1: TryGetable, T2: TryGetable, T3: TryGetable, T4: TryGetable, T5: TryGetable, T6: TryGetable, T7: TryGetable, T8: TryGetable, T9: TryGetable, T10: TryGetable,

fn try_get_many( res: &QueryResult, pre: &str, cols: &[String], ) -> Result<Self, TryGetError>

fn try_get_many_by_index(res: &QueryResult) -> Result<Self, TryGetError>

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> TryGetableMany for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11)

where T0: TryGetable, T1: TryGetable, T2: TryGetable, T3: TryGetable, T4: TryGetable, T5: TryGetable, T6: TryGetable, T7: TryGetable, T8: TryGetable, T9: TryGetable, T10: TryGetable, T11: TryGetable,

fn try_get_many( res: &QueryResult, pre: &str, cols: &[String], ) -> Result<Self, TryGetError>

fn try_get_many_by_index(res: &QueryResult) -> Result<Self, TryGetError>

impl<T> TryGetableMany for (T,)

where T: TryGetableMany,

fn try_get_many( res: &QueryResult, pre: &str, cols: &[String], ) -> Result<Self, TryGetError>

fn try_get_many_by_index(res: &QueryResult) -> Result<Self, TryGetError>

Implementors

impl<T> TryGetableMany for T

where T: TryGetable,