This commit is contained in:
gwenn
2018-08-16 18:29:46 +02:00
parent 33271764b1
commit 5e9c7bac4e
25 changed files with 527 additions and 385 deletions

View File

@@ -1,11 +1,11 @@
//! Traits dealing with SQLite data types.
//!
//! SQLite uses a [dynamic type system](https://www.sqlite.org/datatype3.html). Implementations of
//! the `ToSql` and `FromSql` traits are provided for the basic types that SQLite provides methods
//! for:
//! the `ToSql` and `FromSql` traits are provided for the basic types that
//! SQLite provides methods for:
//!
//! * Integers (`i32` and `i64`; SQLite uses `i64` internally, so getting an `i32` will truncate
//! if the value is too large or too small).
//! * Integers (`i32` and `i64`; SQLite uses `i64` internally, so getting an
//! `i32` will truncate if the value is too large or too small).
//! * Reals (`f64`)
//! * Strings (`String` and `&str`)
//! * Blobs (`Vec<u8>` and `&[u8]`)
@@ -22,16 +22,18 @@
//! extern crate rusqlite;
//! extern crate time;
//!
//! use rusqlite::types::{FromSql, FromSqlResult, ValueRef, ToSql, ToSqlOutput};
//! use rusqlite::{Result};
//! use rusqlite::types::{FromSql, FromSqlResult, ToSql, ToSqlOutput, ValueRef};
//! use rusqlite::Result;
//!
//! pub struct TimespecSql(pub time::Timespec);
//!
//! impl FromSql for TimespecSql {
//! fn column_result(value: ValueRef) -> FromSqlResult<Self> {
//! f64::column_result(value).map(|as_f64| {
//! TimespecSql(time::Timespec{ sec: as_f64.trunc() as i64,
//! nsec: (as_f64.fract() * 1.0e9) as i32 })
//! TimespecSql(time::Timespec {
//! sec: as_f64.trunc() as i64,
//! nsec: (as_f64.fract() * 1.0e9) as i32,
//! })
//! })
//! }
//! }
@@ -48,9 +50,9 @@
//! # fn main() {}
//! ```
//!
//! `ToSql` and `FromSql` are also implemented for `Option<T>` where `T` implements `ToSql` or
//! `FromSql` for the cases where you want to know if a value was NULL (which gets translated to
//! `None`).
//! `ToSql` and `FromSql` are also implemented for `Option<T>` where `T`
//! implements `ToSql` or `FromSql` for the cases where you want to know if a
//! value was NULL (which gets translated to `None`).
pub use self::from_sql::{FromSql, FromSqlError, FromSqlResult};
pub use self::to_sql::{ToSql, ToSqlOutput};
@@ -77,8 +79,7 @@ mod value_ref;
/// # extern crate rusqlite;
/// # use rusqlite::{Connection, Result};
/// # use rusqlite::types::{Null};
/// fn main() {
/// }
/// fn main() {}
/// fn insert_null(conn: &Connection) -> Result<usize> {
/// conn.execute("INSERT INTO people (name) VALUES (?)", &[&Null])
/// }