Trait FromDbValue

pub trait FromDbValue {
    // Required methods
    fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>
       where Self: Sized;
    fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>
       where Self: Sized;
    fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>
       where Self: Sized;
}

Available on crate feature db only.

A trait for converting a database value to a Rust value.

Required Methods

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

where Self: Sized,

Available on crate feature sqlite only.

Converts the given SQLite database value to a Rust value.

Errors

This method can return an error if the value is not compatible with the Rust type.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

where Self: Sized,

Available on crate feature postgres only.

Converts the given PostgreSQL database value to a Rust value.

Errors

This method can return an error if the value is not compatible with the Rust type.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

where Self: Sized,

Available on crate feature mysql only.

Converts the given MySQL database value to a Rust value.

Errors

This method can return an error if the value is not compatible with the Rust type.

Implementations on Foreign Types

impl FromDbValue for Option<bool>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for Option<f32>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for Option<f64>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for Option<i8>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

impl FromDbValue for Option<i16>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for Option<i32>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for Option<i64>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for Option<u8>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

impl FromDbValue for Option<u16>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

impl FromDbValue for Option<u32>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

impl FromDbValue for Option<u64>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

impl FromDbValue for Option<String>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for Option<Vec<u8>>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for Option<DateTime<FixedOffset>>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for Option<NaiveDate>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for Option<NaiveDateTime>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for Option<NaiveTime>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for bool

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for f32

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for f64

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for i8

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

impl FromDbValue for i16

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for i32

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for i64

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for u8

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

impl FromDbValue for u16

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

impl FromDbValue for u32

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

impl FromDbValue for u64

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

impl FromDbValue for String

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for Vec<u8>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for DateTime<FixedOffset>

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for NaiveDate

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for NaiveDateTime

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl FromDbValue for NaiveTime

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

impl<T: DatabaseField> FromDbValue for Option<Auto<T>>

where Option<T>: FromDbValue,

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

where Self: Sized,

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

where Self: Sized,

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

where Self: Sized,

Available on crate feature mysql only.

impl<T: Model + Send + Sync> FromDbValue for Option<ForeignKey<T>>

where Option<T::PrimaryKey>: FromDbValue,

fn from_sqlite(value: SqliteValueRef<'_>) -> Result<Self>

Available on crate feature sqlite only.

fn from_postgres(value: PostgresValueRef<'_>) -> Result<Self>

Available on crate feature postgres only.

fn from_mysql(value: MySqlValueRef<'_>) -> Result<Self>

Available on crate feature mysql only.

Implementors

impl FromDbValue for PasswordHash

impl<T: DatabaseField> FromDbValue for Auto<T>

impl<T: Model + Send + Sync> FromDbValue for ForeignKey<T>

impl<const LIMIT: u32> FromDbValue for LimitedString<LIMIT>