Trait rusqlite::OptionalExtension

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pub trait OptionalExtension<T> {
    // Required method
    fn optional(self) -> Result<Option<T>>;
}
Expand description

Required Methods§

source

fn optional(self) -> Result<Option<T>>

Converts a Result<T> into a Result<Option<T>>.

By default, Rusqlite treats 0 rows being returned from a query that is expected to return 1 row as an error. This method will handle that error, and give you back an Option<T> instead.

Implementors§