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Make FromSql impl for TimeSpec support double/int.

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This commit is contained in:
gwenn 2016-02-25 18:44:53 +01:00
parent 08d4d9aadf
commit ecac52dc4c
3 changed files with 145 additions and 113 deletions
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130
src/types/chrono.rs
View File

@ -55,16 +55,15 @@ impl FromSql for NaiveDate {
} }
} }
unsafe fn column_has_valid_sqlite_type(stmt: *mut sqlite3_stmt, col: c_int) -> bool { unsafe fn column_has_valid_sqlite_type(_: *mut sqlite3_stmt, _: c_int) -> bool {
let sqlite_type = sqlite3_column_type(stmt, col); true // to avoid double check
sqlite_type == ffi::SQLITE_TEXT || sqlite_type == ffi::SQLITE_FLOAT
} }
} }
/// ISO 8601 time without timezone => "HH:MM:SS.SSS" /// ISO 8601 time without timezone => "HH:MM:SS.SSS"
impl ToSql for NaiveTime { impl ToSql for NaiveTime {
unsafe fn bind_parameter(&self, stmt: *mut sqlite3_stmt, col: c_int) -> c_int { unsafe fn bind_parameter(&self, stmt: *mut sqlite3_stmt, col: c_int) -> c_int {
let date_str = self.format("%H:%M:%S%.3f").to_string(); let date_str = self.format("%H:%M:%S%.f").to_string();
date_str.bind_parameter(stmt, col) date_str.bind_parameter(stmt, col)
} }
} }
@ -72,20 +71,15 @@ impl ToSql for NaiveTime {
/// "HH:MM"/"HH:MM:SS"/"HH:MM:SS.SSS" => ISO 8601 time without timezone. /// "HH:MM"/"HH:MM:SS"/"HH:MM:SS.SSS" => ISO 8601 time without timezone.
impl FromSql for NaiveTime { impl FromSql for NaiveTime {
unsafe fn column_result(stmt: *mut sqlite3_stmt, col: c_int) -> Result<NaiveTime> { unsafe fn column_result(stmt: *mut sqlite3_stmt, col: c_int) -> Result<NaiveTime> {
match sqlite3_column_type(stmt, col) { let s = try!(String::column_result(stmt, col));
ffi::SQLITE_TEXT => { let fmt = match s.len() {
let s = try!(String::column_result(stmt, col)); 5 => "%H:%M",
let fmt = match s.len() { 8 => "%H:%M:%S",
5 => "%H:%M", _ => "%H:%M:%S%.f",
8 => "%H:%M:%S", };
_ => "%H:%M:%S%.3f", match NaiveTime::parse_from_str(&s, fmt) {
}; Ok(dt) => Ok(dt),
match NaiveTime::parse_from_str(&s, fmt) { Err(err) => Err(Error::FromSqlConversionFailure(Box::new(err))),
Ok(dt) => Ok(dt),
Err(err) => Err(Error::FromSqlConversionFailure(Box::new(err))),
}
}
_ => Err(Error::InvalidColumnType),
} }
} }
@ -97,7 +91,7 @@ impl FromSql for NaiveTime {
/// ISO 8601 combined date and time without timezone => "YYYY-MM-DD HH:MM:SS.SSS" /// ISO 8601 combined date and time without timezone => "YYYY-MM-DD HH:MM:SS.SSS"
impl ToSql for NaiveDateTime { impl ToSql for NaiveDateTime {
unsafe fn bind_parameter(&self, stmt: *mut sqlite3_stmt, col: c_int) -> c_int { unsafe fn bind_parameter(&self, stmt: *mut sqlite3_stmt, col: c_int) -> c_int {
let date_str = self.format("%Y-%m-%d %H:%M:%S%.3f").to_string(); let date_str = self.format("%Y-%m-%d %H:%M:%S%.f").to_string();
date_str.bind_parameter(stmt, col) date_str.bind_parameter(stmt, col)
} }
} }
@ -124,8 +118,8 @@ impl FromSql for NaiveDateTime {
} }
_ => { _ => {
match s.as_bytes()[10] { match s.as_bytes()[10] {
b'T' => "%Y-%m-%dT%H:%M:%S%.3f", b'T' => "%Y-%m-%dT%H:%M:%S%.f",
_ => "%Y-%m-%d %H:%M:%S%.3f", _ => "%Y-%m-%d %H:%M:%S%.f",
} }
} }
}; };
@ -165,17 +159,15 @@ impl FromSql for NaiveDateTime {
} }
} }
unsafe fn column_has_valid_sqlite_type(stmt: *mut sqlite3_stmt, col: c_int) -> bool { unsafe fn column_has_valid_sqlite_type(_: *mut sqlite3_stmt, _: c_int) -> bool {
let sqlite_type = sqlite3_column_type(stmt, col); true // to avoid double check
sqlite_type == ffi::SQLITE_TEXT || sqlite_type == ffi::SQLITE_INTEGER ||
sqlite_type == ffi::SQLITE_FLOAT
} }
} }
/// ISO 8601 date and time with time zone => "YYYY-MM-DD HH:MM:SS.SSS[+-]HH:MM" /// ISO 8601 date and time with time zone => "YYYY-MM-DD HH:MM:SS.SSS[+-]HH:MM"
impl ToSql for DateTime<UTC> { impl ToSql for DateTime<UTC> {
unsafe fn bind_parameter(&self, stmt: *mut sqlite3_stmt, col: c_int) -> c_int { unsafe fn bind_parameter(&self, stmt: *mut sqlite3_stmt, col: c_int) -> c_int {
let date_str = self.format("%Y-%m-%d %H:%M:%S%.3f%:z").to_string(); let date_str = self.format("%Y-%m-%d %H:%M:%S%.f%:z").to_string();
date_str.bind_parameter(stmt, col) date_str.bind_parameter(stmt, col)
} }
} }
@ -190,9 +182,9 @@ impl FromSql for DateTime<UTC> {
let s = try!(String::column_result(stmt, col)); let s = try!(String::column_result(stmt, col));
if s.len() > 23 { if s.len() > 23 {
let fmt = if s.as_bytes()[10] == b'T' { let fmt = if s.as_bytes()[10] == b'T' {
"%Y-%m-%dT%H:%M:%S%.3f%:z" "%Y-%m-%dT%H:%M:%S%.f%:z"
} else { } else {
"%Y-%m-%d %H:%M:%S%.3f%:z" "%Y-%m-%d %H:%M:%S%.f%:z"
}; };
match UTC.datetime_from_str(&s, fmt) { match UTC.datetime_from_str(&s, fmt) {
Ok(dt) => Ok(dt), Ok(dt) => Ok(dt),
@ -212,8 +204,8 @@ impl FromSql for DateTime<UTC> {
} }
} }
unsafe fn column_has_valid_sqlite_type(stmt: *mut sqlite3_stmt, col: c_int) -> bool { unsafe fn column_has_valid_sqlite_type(_: *mut sqlite3_stmt, _: c_int) -> bool {
NaiveDateTime::column_has_valid_sqlite_type(stmt, col) true // to avoid double check
} }
} }
@ -221,7 +213,7 @@ impl FromSql for DateTime<UTC> {
/// ISO 8601 date and time with time zone => "YYYY-MM-DD HH:MM:SS.SSS[+-]HH:MM" /// ISO 8601 date and time with time zone => "YYYY-MM-DD HH:MM:SS.SSS[+-]HH:MM"
impl ToSql for DateTime<Local> { impl ToSql for DateTime<Local> {
unsafe fn bind_parameter(&self, stmt: *mut sqlite3_stmt, col: c_int) -> c_int { unsafe fn bind_parameter(&self, stmt: *mut sqlite3_stmt, col: c_int) -> c_int {
let date_str = self.format("%Y-%m-%d %H:%M:%S%.3f%:z").to_string(); let date_str = self.format("%Y-%m-%d %H:%M:%S%.f%:z").to_string();
date_str.bind_parameter(stmt, col) date_str.bind_parameter(stmt, col)
} }
} }
@ -236,9 +228,9 @@ impl FromSql for DateTime<Local> {
let s = try!(String::column_result(stmt, col)); let s = try!(String::column_result(stmt, col));
if s.len() > 23 { if s.len() > 23 {
let fmt = if s.as_bytes()[10] == b'T' { let fmt = if s.as_bytes()[10] == b'T' {
"%Y-%m-%dT%H:%M:%S%.3f%:z" "%Y-%m-%dT%H:%M:%S%.f%:z"
} else { } else {
"%Y-%m-%d %H:%M:%S%.3f%:z" "%Y-%m-%d %H:%M:%S%.f%:z"
}; };
match Local.datetime_from_str(&s, fmt) { match Local.datetime_from_str(&s, fmt) {
Ok(dt) => Ok(dt), Ok(dt) => Ok(dt),
@ -258,8 +250,8 @@ impl FromSql for DateTime<Local> {
} }
} }
unsafe fn column_has_valid_sqlite_type(stmt: *mut sqlite3_stmt, col: c_int) -> bool { unsafe fn column_has_valid_sqlite_type(_: *mut sqlite3_stmt, _: c_int) -> bool {
NaiveDateTime::column_has_valid_sqlite_type(stmt, col) true // to avoid double check
} }
} }
@ -273,7 +265,7 @@ mod test {
fn checked_memory_handle() -> Connection { fn checked_memory_handle() -> Connection {
let db = Connection::open_in_memory().unwrap(); let db = Connection::open_in_memory().unwrap();
db.execute_batch("CREATE TABLE chrono (t TEXT, i INTEGER, f FLOAT, b BLOB)").unwrap(); db.execute_batch("CREATE TABLE foo (t TEXT, i INTEGER, f FLOAT, b BLOB)").unwrap();
db db
} }
@ -281,14 +273,14 @@ mod test {
fn test_naive_date() { fn test_naive_date() {
let db = checked_memory_handle(); let db = checked_memory_handle();
let d = NaiveDate::from_ymd(2016, 2, 23); let d = NaiveDate::from_ymd(2016, 2, 23);
db.execute("INSERT INTO chrono (t) VALUES (?)", &[&d]).unwrap(); db.execute("INSERT INTO foo (t) VALUES (?)", &[&d]).unwrap();
db.execute("UPDATE chrono SET f = julianday(t)", &[]).unwrap(); db.execute("UPDATE foo SET f = julianday(t)", &[]).unwrap();
let s: String = db.query_row("SELECT t FROM chrono", &[], |r| r.get(0)).unwrap(); let s: String = db.query_row("SELECT t FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!("2016-02-23", s); assert_eq!("2016-02-23", s);
let t: NaiveDate = db.query_row("SELECT t FROM chrono", &[], |r| r.get(0)).unwrap(); let t: NaiveDate = db.query_row("SELECT t FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!(d, t); assert_eq!(d, t);
let f: NaiveDate = db.query_row("SELECT f FROM chrono", &[], |r| r.get(0)).unwrap(); let f: NaiveDate = db.query_row("SELECT f FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!(d, f); assert_eq!(d, f);
} }
@ -296,11 +288,11 @@ mod test {
fn test_naive_time() { fn test_naive_time() {
let db = checked_memory_handle(); let db = checked_memory_handle();
let t = NaiveTime::from_hms(23, 56, 4); let t = NaiveTime::from_hms(23, 56, 4);
db.execute("INSERT INTO chrono (t) VALUES (?)", &[&t]).unwrap(); db.execute("INSERT INTO foo (t) VALUES (?)", &[&t]).unwrap();
let s: String = db.query_row("SELECT t FROM chrono", &[], |r| r.get(0)).unwrap(); let s: String = db.query_row("SELECT t FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!("23:56:04.000", s); assert_eq!("23:56:04", s);
let v: NaiveTime = db.query_row("SELECT t FROM chrono", &[], |r| r.get(0)).unwrap(); let v: NaiveTime = db.query_row("SELECT t FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!(t, v); assert_eq!(t, v);
} }
@ -314,27 +306,27 @@ mod test {
let di = NaiveDateTime::new(d, NaiveTime::from_hms(23, 56, 3)); let di = NaiveDateTime::new(d, NaiveTime::from_hms(23, 56, 3));
let ds = NaiveDateTime::new(d, NaiveTime::from_hms(23, 56, 5)); let ds = NaiveDateTime::new(d, NaiveTime::from_hms(23, 56, 5));
db.execute("INSERT INTO chrono (t) VALUES (?)", &[&dt]).unwrap(); db.execute("INSERT INTO foo (t) VALUES (?)", &[&dt]).unwrap();
db.execute("UPDATE chrono SET f = julianday(t), i = strftime('%s', t)", db.execute("UPDATE foo SET f = julianday(t), i = strftime('%s', t)",
&[]) &[])
.unwrap(); .unwrap();
let s: String = db.query_row("SELECT t FROM chrono", &[], |r| r.get(0)).unwrap(); let s: String = db.query_row("SELECT t FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!("2016-02-23 23:56:04.000", s); assert_eq!("2016-02-23 23:56:04", s);
let v: NaiveDateTime = db.query_row("SELECT t FROM chrono", &[], |r| r.get(0)).unwrap(); let v: NaiveDateTime = db.query_row("SELECT t FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!(dt, v); assert_eq!(dt, v);
let f: NaiveDateTime = db.query_row("SELECT f FROM chrono", &[], |r| r.get(0)).unwrap(); let f: NaiveDateTime = db.query_row("SELECT f FROM foo", &[], |r| r.get(0)).unwrap();
// FIXME `2016-02-23T23:56:04` vs `2016-02-23T23:56:03.999992609` // `2016-02-23T23:56:04` vs `2016-02-23T23:56:03.999992609`
assert!(f.ge(&di) && f.le(&ds)); assert!(f.ge(&di) && f.le(&ds));
let i: NaiveDateTime = db.query_row("SELECT i FROM chrono", &[], |r| r.get(0)).unwrap(); let i: NaiveDateTime = db.query_row("SELECT i FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!(dt, i); assert_eq!(dt, i);
db.execute("UPDATE chrono set b = datetime(t)", &[]).unwrap(); // "YYYY-MM-DD HH:MM:SS" db.execute("UPDATE foo set b = datetime(t)", &[]).unwrap(); // "YYYY-MM-DD HH:MM:SS"
let b: NaiveDateTime = db.query_row("SELECT b FROM chrono", &[], |r| r.get(0)).unwrap(); let b: NaiveDateTime = db.query_row("SELECT b FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!(dt, b); assert_eq!(dt, b);
db.execute("UPDATE chrono set b = strftime('%Y-%m-%dT%H:%M', t)", &[]).unwrap(); db.execute("UPDATE foo set b = strftime('%Y-%m-%dT%H:%M', t)", &[]).unwrap();
let b: NaiveDateTime = db.query_row("SELECT b FROM chrono", &[], |r| r.get(0)).unwrap(); let b: NaiveDateTime = db.query_row("SELECT b FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!(NaiveDateTime::new(d, NaiveTime::from_hms(23, 56, 0)), b); assert_eq!(NaiveDateTime::new(d, NaiveTime::from_hms(23, 56, 0)), b);
} }
@ -346,16 +338,16 @@ mod test {
let dt = NaiveDateTime::new(d, t); let dt = NaiveDateTime::new(d, t);
let utc = UTC.from_utc_datetime(&dt); let utc = UTC.from_utc_datetime(&dt);
db.execute("INSERT INTO chrono (t) VALUES (?)", &[&utc]).unwrap(); db.execute("INSERT INTO foo (t) VALUES (?)", &[&utc]).unwrap();
db.execute("UPDATE chrono SET f = julianday(t), i = strftime('%s', t)", db.execute("UPDATE foo SET f = julianday(t), i = strftime('%s', t)",
&[]) &[])
.unwrap(); .unwrap();
let s: String = db.query_row("SELECT t FROM chrono", &[], |r| r.get(0)).unwrap(); let s: String = db.query_row("SELECT t FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!("2016-02-23 23:56:04.000+00:00", s); assert_eq!("2016-02-23 23:56:04+00:00", s);
let v: DateTime<UTC> = db.query_row("SELECT t FROM chrono", &[], |r| r.get(0)).unwrap(); let v: DateTime<UTC> = db.query_row("SELECT t FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!(utc, v); assert_eq!(utc, v);
let i: DateTime<UTC> = db.query_row("SELECT i FROM chrono", &[], |r| r.get(0)).unwrap(); let i: DateTime<UTC> = db.query_row("SELECT i FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!(utc, i); assert_eq!(utc, i);
} }
@ -367,16 +359,16 @@ mod test {
let dt = NaiveDateTime::new(d, t); let dt = NaiveDateTime::new(d, t);
let local = Local.from_local_datetime(&dt).single().unwrap(); let local = Local.from_local_datetime(&dt).single().unwrap();
db.execute("INSERT INTO chrono (t) VALUES (?)", &[&local]).unwrap(); db.execute("INSERT INTO foo (t) VALUES (?)", &[&local]).unwrap();
db.execute("UPDATE chrono SET f = julianday(t), i = strftime('%s', t)", db.execute("UPDATE foo SET f = julianday(t), i = strftime('%s', t)",
&[]) &[])
.unwrap(); .unwrap();
//let s: String = db.query_row("SELECT t FROM chrono", &[], |r| r.get(0)).unwrap(); // let s: String = db.query_row("SELECT t FROM foo", &[], |r| r.get(0)).unwrap();
//assert_eq!("2016-02-23 23:56:04.000+01:00", s); // assert_eq!("2016-02-23 23:56:04.000+01:00", s);
let v: DateTime<Local> = db.query_row("SELECT t FROM chrono", &[], |r| r.get(0)).unwrap(); let v: DateTime<Local> = db.query_row("SELECT t FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!(local, v); assert_eq!(local, v);
let i: DateTime<Local> = db.query_row("SELECT i FROM chrono", &[], |r| r.get(0)).unwrap(); let i: DateTime<Local> = db.query_row("SELECT i FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!(local, i); assert_eq!(local, i);
} }
} }

47
src/types/mod.rs
View File

@ -52,8 +52,6 @@
//! } //! }
//! ``` //! ```
extern crate time;
use libc::{c_int, c_double, c_char}; use libc::{c_int, c_double, c_char};
use std::ffi::CStr; use std::ffi::CStr;
use std::mem; use std::mem;
@ -66,11 +64,10 @@ pub use ffi::sqlite3_column_type;
pub use ffi::{SQLITE_INTEGER, SQLITE_FLOAT, SQLITE_TEXT, SQLITE_BLOB, SQLITE_NULL}; pub use ffi::{SQLITE_INTEGER, SQLITE_FLOAT, SQLITE_TEXT, SQLITE_BLOB, SQLITE_NULL};
mod time;
#[cfg(feature = "chrono")] #[cfg(feature = "chrono")]
mod chrono; mod chrono;
const SQLITE_DATETIME_FMT: &'static str = "%Y-%m-%d %H:%M:%S";
/// A trait for types that can be converted into SQLite values. /// A trait for types that can be converted into SQLite values.
pub trait ToSql { pub trait ToSql {
unsafe fn bind_parameter(&self, stmt: *mut sqlite3_stmt, col: c_int) -> c_int; unsafe fn bind_parameter(&self, stmt: *mut sqlite3_stmt, col: c_int) -> c_int;
@ -156,13 +153,6 @@ impl ToSql for Vec<u8> {
} }
} }
impl ToSql for time::Timespec {
unsafe fn bind_parameter(&self, stmt: *mut sqlite3_stmt, col: c_int) -> c_int {
let time_str = time::at_utc(*self).strftime(SQLITE_DATETIME_FMT).unwrap().to_string();
time_str.bind_parameter(stmt, col)
}
}
impl<T: ToSql> ToSql for Option<T> { impl<T: ToSql> ToSql for Option<T> {
unsafe fn bind_parameter(&self, stmt: *mut sqlite3_stmt, col: c_int) -> c_int { unsafe fn bind_parameter(&self, stmt: *mut sqlite3_stmt, col: c_int) -> c_int {
match *self { match *self {
@ -265,22 +255,6 @@ impl FromSql for Vec<u8> {
} }
} }
impl FromSql for time::Timespec {
unsafe fn column_result(stmt: *mut sqlite3_stmt, col: c_int) -> Result<time::Timespec> {
let col_str = FromSql::column_result(stmt, col);
col_str.and_then(|txt: String| {
match time::strptime(&txt, SQLITE_DATETIME_FMT) {
Ok(tm) => Ok(tm.to_timespec()),
Err(err) => Err(Error::FromSqlConversionFailure(Box::new(err))),
}
})
}
unsafe fn column_has_valid_sqlite_type(stmt: *mut sqlite3_stmt, col: c_int) -> bool {
String::column_has_valid_sqlite_type(stmt, col)
}
}
impl<T: FromSql> FromSql for Option<T> { impl<T: FromSql> FromSql for Option<T> {
unsafe fn column_result(stmt: *mut sqlite3_stmt, col: c_int) -> Result<Option<T>> { unsafe fn column_result(stmt: *mut sqlite3_stmt, col: c_int) -> Result<Option<T>> {
if sqlite3_column_type(stmt, col) == ffi::SQLITE_NULL { if sqlite3_column_type(stmt, col) == ffi::SQLITE_NULL {
@ -331,8 +305,9 @@ impl FromSql for Value {
#[cfg(test)] #[cfg(test)]
mod test { mod test {
extern crate time;
use Connection; use Connection;
use super::time;
use Error; use Error;
use libc::{c_int, c_double}; use libc::{c_int, c_double};
@ -364,20 +339,6 @@ mod test {
assert_eq!(from, s); assert_eq!(from, s);
} }
#[test]
fn test_timespec() {
let db = checked_memory_handle();
let ts = time::Timespec {
sec: 10_000,
nsec: 0,
};
db.execute("INSERT INTO foo(t) VALUES (?)", &[&ts]).unwrap();
let from: time::Timespec = db.query_row("SELECT t FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!(from, ts);
}
#[test] #[test]
fn test_option() { fn test_option() {
let db = checked_memory_handle(); let db = checked_memory_handle();
@ -455,7 +416,6 @@ mod test {
assert!(is_invalid_column_type(row.get_checked::<i32, c_double>(2).err().unwrap())); assert!(is_invalid_column_type(row.get_checked::<i32, c_double>(2).err().unwrap()));
assert!(is_invalid_column_type(row.get_checked::<i32, String>(2).err().unwrap())); assert!(is_invalid_column_type(row.get_checked::<i32, String>(2).err().unwrap()));
assert!(is_invalid_column_type(row.get_checked::<i32, Vec<u8>>(2).err().unwrap())); assert!(is_invalid_column_type(row.get_checked::<i32, Vec<u8>>(2).err().unwrap()));
assert!(is_invalid_column_type(row.get_checked::<i32, time::Timespec>(2).err().unwrap()));
assert!(is_invalid_column_type(row.get_checked::<i32, Option<c_double>>(2).err().unwrap())); assert!(is_invalid_column_type(row.get_checked::<i32, Option<c_double>>(2).err().unwrap()));
// 3 is actually a float (c_double) // 3 is actually a float (c_double)
@ -463,7 +423,6 @@ mod test {
assert!(is_invalid_column_type(row.get_checked::<i32, i64>(3).err().unwrap())); assert!(is_invalid_column_type(row.get_checked::<i32, i64>(3).err().unwrap()));
assert!(is_invalid_column_type(row.get_checked::<i32, String>(3).err().unwrap())); assert!(is_invalid_column_type(row.get_checked::<i32, String>(3).err().unwrap()));
assert!(is_invalid_column_type(row.get_checked::<i32, Vec<u8>>(3).err().unwrap())); assert!(is_invalid_column_type(row.get_checked::<i32, Vec<u8>>(3).err().unwrap()));
assert!(is_invalid_column_type(row.get_checked::<i32, time::Timespec>(3).err().unwrap()));
assert!(is_invalid_column_type(row.get_checked::<i32, Option<c_int>>(3).err().unwrap())); assert!(is_invalid_column_type(row.get_checked::<i32, Option<c_int>>(3).err().unwrap()));
// 4 is actually NULL // 4 is actually NULL

81
src/types/time.rs Normal file
View File

@ -0,0 +1,81 @@
extern crate time;
use libc::c_int;
use {Error, Result};
use types::{FromSql, ToSql};
use ffi;
use ffi::sqlite3_stmt;
use ffi::sqlite3_column_type;
const SQLITE_DATETIME_FMT: &'static str = "%Y-%m-%d %H:%M:%S";
const JULIAN_DAY: f64 = 2440587.5; // 1970-01-01 00:00:00 is JD 2440587.5
const DAY_IN_SECONDS: f64 = 86400.0;
impl ToSql for time::Timespec {
unsafe fn bind_parameter(&self, stmt: *mut sqlite3_stmt, col: c_int) -> c_int {
let time_str = time::at_utc(*self).strftime(SQLITE_DATETIME_FMT).unwrap().to_string();
time_str.bind_parameter(stmt, col)
}
}
impl FromSql for time::Timespec {
unsafe fn column_result(stmt: *mut sqlite3_stmt, col: c_int) -> Result<time::Timespec> {
match sqlite3_column_type(stmt, col) {
ffi::SQLITE_TEXT => {
let col_str = FromSql::column_result(stmt, col);
col_str.and_then(|txt: String| {
match time::strptime(&txt, SQLITE_DATETIME_FMT) {
Ok(tm) => Ok(tm.to_timespec()),
Err(err) => Err(Error::FromSqlConversionFailure(Box::new(err))),
}
})
}
ffi::SQLITE_INTEGER => Ok(time::Timespec::new(ffi::sqlite3_column_int64(stmt, col), 0)),
ffi::SQLITE_FLOAT => {
let mut jd = ffi::sqlite3_column_double(stmt, col);
jd -= JULIAN_DAY;
jd *= DAY_IN_SECONDS;
let ns = jd.fract() * 10f64.powi(9);
Ok(time::Timespec::new(jd as i64, ns as i32))
}
_ => Err(Error::InvalidColumnType),
}
}
unsafe fn column_has_valid_sqlite_type(_: *mut sqlite3_stmt, _: c_int) -> bool {
true // to avoid double check
}
}
#[cfg(test)]
mod test {
use Connection;
use super::time;
fn checked_memory_handle() -> Connection {
let db = Connection::open_in_memory().unwrap();
db.execute_batch("CREATE TABLE foo (t TEXT, i INTEGER, f FLOAT)").unwrap();
db
}
#[test]
fn test_timespec() {
let db = checked_memory_handle();
let ts = time::Timespec {
sec: 10_000,
nsec: 0,
};
db.execute("INSERT INTO foo(t, i) VALUES (?, ?)", &[&ts, &ts.sec]).unwrap();
db.execute("UPDATE foo SET f = julianday(t)", &[]).unwrap();
let from: time::Timespec = db.query_row("SELECT t FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!(from, ts);
let from: time::Timespec = db.query_row("SELECT i FROM foo", &[], |r| r.get(0)).unwrap();
assert_eq!(from, ts);
// `Timespec { sec: 9999, nsec: 999994039 }` vs `Timespec{ sec: 10000, nsec: 0 }`
let from: time::Timespec = db.query_row("SELECT f FROM foo", &[], |r| r.get(0)).unwrap();
assert!((from.sec - ts.sec).abs() <= 1);
}
}