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Merge pull request #404 from gwenn/into-iterator

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Take IntoIterator rather than `&[&ToSql]` (#312)
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gwenn 2018-10-07 11:29:02 +02:00 committed by GitHub
commit ef45312125
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18 changed files with 297 additions and 247 deletions
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14
src/backup.rs
View File

@ -309,7 +309,7 @@ impl<'a, 'b> Drop for Backup<'a, 'b> {
mod test { mod test {
use super::Backup; use super::Backup;
use std::time::Duration; use std::time::Duration;
use {Connection, DatabaseName}; use {Connection, DatabaseName, NO_PARAMS};
#[test] #[test]
fn test_backup() { fn test_backup() {
@ -328,7 +328,7 @@ mod test {
} }
let the_answer: i64 = dst let the_answer: i64 = dst
.query_row("SELECT x FROM foo", &[], |r| r.get(0)) .query_row("SELECT x FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(42, the_answer); assert_eq!(42, the_answer);
@ -342,7 +342,7 @@ mod test {
} }
let the_answer: i64 = dst let the_answer: i64 = dst
.query_row("SELECT SUM(x) FROM foo", &[], |r| r.get(0)) .query_row("SELECT SUM(x) FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(42 + 43, the_answer); assert_eq!(42 + 43, the_answer);
} }
@ -366,7 +366,7 @@ mod test {
} }
let the_answer: i64 = dst let the_answer: i64 = dst
.query_row("SELECT x FROM foo", &[], |r| r.get(0)) .query_row("SELECT x FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(42, the_answer); assert_eq!(42, the_answer);
@ -382,7 +382,7 @@ mod test {
} }
let the_answer: i64 = dst let the_answer: i64 = dst
.query_row("SELECT SUM(x) FROM foo", &[], |r| r.get(0)) .query_row("SELECT SUM(x) FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(42 + 43, the_answer); assert_eq!(42 + 43, the_answer);
} }
@ -410,7 +410,7 @@ mod test {
} }
let the_answer: i64 = dst let the_answer: i64 = dst
.query_row("SELECT x FROM foo", &[], |r| r.get(0)) .query_row("SELECT x FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(42, the_answer); assert_eq!(42, the_answer);
@ -429,7 +429,7 @@ mod test {
} }
let the_answer: i64 = dst let the_answer: i64 = dst
.query_row("SELECT SUM(x) FROM foo", &[], |r| r.get(0)) .query_row("SELECT SUM(x) FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(42 + 43, the_answer); assert_eq!(42 + 43, the_answer);
} }

10
src/blob.rs
View File

@ -18,15 +18,17 @@
//! extern crate rusqlite; //! extern crate rusqlite;
//! //!
//! use rusqlite::blob::ZeroBlob; //! use rusqlite::blob::ZeroBlob;
//! use rusqlite::{Connection, DatabaseName}; //! use rusqlite::{Connection, DatabaseName, NO_PARAMS};
//! use std::io::{Read, Seek, SeekFrom, Write}; //! use std::io::{Read, Seek, SeekFrom, Write};
//! //!
//! fn main() { //! fn main() {
//! let db = Connection::open_in_memory().unwrap(); //! let db = Connection::open_in_memory().unwrap();
//! db.execute_batch("CREATE TABLE test (content BLOB);") //! db.execute_batch("CREATE TABLE test (content BLOB);")
//! .unwrap(); //! .unwrap();
//! db.execute("INSERT INTO test (content) VALUES (ZEROBLOB(10))", &[]) //! db.execute(
//! .unwrap(); //! "INSERT INTO test (content) VALUES (ZEROBLOB(10))",
//! NO_PARAMS,
//! ).unwrap();
//! //!
//! let rowid = db.last_insert_rowid(); //! let rowid = db.last_insert_rowid();
//! let mut blob = db //! let mut blob = db
@ -44,7 +46,7 @@
//! let bytes_read = blob.read(&mut buf[..]).unwrap(); //! let bytes_read = blob.read(&mut buf[..]).unwrap();
//! assert_eq!(bytes_read, 10); // note we read 10 bytes because the blob has size 10 //! assert_eq!(bytes_read, 10); // note we read 10 bytes because the blob has size 10
//! //!
//! db.execute("INSERT INTO test (content) VALUES (?)", &[&ZeroBlob(64)]) //! db.execute("INSERT INTO test (content) VALUES (?)", &[ZeroBlob(64)])
//! .unwrap(); //! .unwrap();
//! //!
//! // given a new row ID, we can reopen the blob on that row //! // given a new row ID, we can reopen the blob on that row

10
src/busy.rs
View File

@ -14,7 +14,7 @@ impl Connection {
/// ///
/// Calling this routine with an argument equal to zero turns off all busy /// Calling this routine with an argument equal to zero turns off all busy
/// handlers. /// handlers.
// ///
/// There can only be a single busy handler for a particular database /// There can only be a single busy handler for a particular database
/// connection at any given moment. If another busy handler was defined /// connection at any given moment. If another busy handler was defined
/// (using `busy_handler`) prior to calling this routine, that other /// (using `busy_handler`) prior to calling this routine, that other
@ -81,7 +81,7 @@ mod test {
use std::thread; use std::thread;
use std::time::Duration; use std::time::Duration;
use {Connection, Error, ErrorCode, TransactionBehavior}; use {Connection, Error, ErrorCode, TransactionBehavior, NO_PARAMS};
#[test] #[test]
fn test_default_busy() { fn test_default_busy() {
@ -93,7 +93,7 @@ mod test {
.transaction_with_behavior(TransactionBehavior::Exclusive) .transaction_with_behavior(TransactionBehavior::Exclusive)
.unwrap(); .unwrap();
let db2 = Connection::open(&path).unwrap(); let db2 = Connection::open(&path).unwrap();
let r = db2.query_row("PRAGMA schema_version", &[], |_| unreachable!()); let r = db2.query_row("PRAGMA schema_version", NO_PARAMS, |_| unreachable!());
match r.unwrap_err() { match r.unwrap_err() {
Error::SqliteFailure(err, _) => { Error::SqliteFailure(err, _) => {
assert_eq!(err.code, ErrorCode::DatabaseBusy); assert_eq!(err.code, ErrorCode::DatabaseBusy);
@ -125,7 +125,7 @@ mod test {
assert_eq!(tx.recv().unwrap(), 1); assert_eq!(tx.recv().unwrap(), 1);
let _ = db2 let _ = db2
.query_row("PRAGMA schema_version", &[], |row| { .query_row("PRAGMA schema_version", NO_PARAMS, |row| {
row.get_checked::<_, i32>(0) row.get_checked::<_, i32>(0)
}).expect("unexpected error"); }).expect("unexpected error");
@ -163,7 +163,7 @@ mod test {
assert_eq!(tx.recv().unwrap(), 1); assert_eq!(tx.recv().unwrap(), 1);
let _ = db2 let _ = db2
.query_row("PRAGMA schema_version", &[], |row| { .query_row("PRAGMA schema_version", NO_PARAMS, |row| {
row.get_checked::<_, i32>(0) row.get_checked::<_, i32>(0)
}).expect("unexpected error"); }).expect("unexpected error");
assert_eq!(CALLED.load(Ordering::Relaxed), true); assert_eq!(CALLED.load(Ordering::Relaxed), true);

50
src/cache.rs
View File

@ -17,13 +17,13 @@ impl Connection {
/// fn insert_new_people(conn: &Connection) -> Result<()> { /// fn insert_new_people(conn: &Connection) -> Result<()> {
/// { /// {
/// let mut stmt = try!(conn.prepare_cached("INSERT INTO People (name) VALUES (?)")); /// let mut stmt = try!(conn.prepare_cached("INSERT INTO People (name) VALUES (?)"));
/// try!(stmt.execute(&[&"Joe Smith"])); /// try!(stmt.execute(&["Joe Smith"]));
/// } /// }
/// { /// {
/// // This will return the same underlying SQLite statement handle without /// // This will return the same underlying SQLite statement handle without
/// // having to prepare it again. /// // having to prepare it again.
/// let mut stmt = try!(conn.prepare_cached("INSERT INTO People (name) VALUES (?)")); /// let mut stmt = try!(conn.prepare_cached("INSERT INTO People (name) VALUES (?)"));
/// try!(stmt.execute(&[&"Bob Jones"])); /// try!(stmt.execute(&["Bob Jones"]));
/// } /// }
/// Ok(()) /// Ok(())
/// } /// }
@ -152,7 +152,7 @@ impl StatementCache {
#[cfg(test)] #[cfg(test)]
mod test { mod test {
use super::StatementCache; use super::StatementCache;
use Connection; use {Connection, NO_PARAMS};
impl StatementCache { impl StatementCache {
fn clear(&self) { fn clear(&self) {
@ -180,14 +180,20 @@ mod test {
{ {
let mut stmt = db.prepare_cached(sql).unwrap(); let mut stmt = db.prepare_cached(sql).unwrap();
assert_eq!(0, cache.len()); assert_eq!(0, cache.len());
assert_eq!(0, stmt.query_row(&[], |r| r.get::<_, i64>(0)).unwrap()); assert_eq!(
0,
stmt.query_row(NO_PARAMS, |r| r.get::<_, i64>(0)).unwrap()
);
} }
assert_eq!(1, cache.len()); assert_eq!(1, cache.len());
{ {
let mut stmt = db.prepare_cached(sql).unwrap(); let mut stmt = db.prepare_cached(sql).unwrap();
assert_eq!(0, cache.len()); assert_eq!(0, cache.len());
assert_eq!(0, stmt.query_row(&[], |r| r.get::<_, i64>(0)).unwrap()); assert_eq!(
0,
stmt.query_row(NO_PARAMS, |r| r.get::<_, i64>(0)).unwrap()
);
} }
assert_eq!(1, cache.len()); assert_eq!(1, cache.len());
@ -205,7 +211,10 @@ mod test {
{ {
let mut stmt = db.prepare_cached(sql).unwrap(); let mut stmt = db.prepare_cached(sql).unwrap();
assert_eq!(0, cache.len()); assert_eq!(0, cache.len());
assert_eq!(0, stmt.query_row(&[], |r| r.get::<_, i64>(0)).unwrap()); assert_eq!(
0,
stmt.query_row(NO_PARAMS, |r| r.get::<_, i64>(0)).unwrap()
);
} }
assert_eq!(1, cache.len()); assert_eq!(1, cache.len());
@ -215,7 +224,10 @@ mod test {
{ {
let mut stmt = db.prepare_cached(sql).unwrap(); let mut stmt = db.prepare_cached(sql).unwrap();
assert_eq!(0, cache.len()); assert_eq!(0, cache.len());
assert_eq!(0, stmt.query_row(&[], |r| r.get::<_, i64>(0)).unwrap()); assert_eq!(
0,
stmt.query_row(NO_PARAMS, |r| r.get::<_, i64>(0)).unwrap()
);
} }
assert_eq!(0, cache.len()); assert_eq!(0, cache.len());
@ -223,7 +235,10 @@ mod test {
{ {
let mut stmt = db.prepare_cached(sql).unwrap(); let mut stmt = db.prepare_cached(sql).unwrap();
assert_eq!(0, cache.len()); assert_eq!(0, cache.len());
assert_eq!(0, stmt.query_row(&[], |r| r.get::<_, i64>(0)).unwrap()); assert_eq!(
0,
stmt.query_row(NO_PARAMS, |r| r.get::<_, i64>(0)).unwrap()
);
} }
assert_eq!(1, cache.len()); assert_eq!(1, cache.len());
} }
@ -237,7 +252,10 @@ mod test {
{ {
let mut stmt = db.prepare_cached(sql).unwrap(); let mut stmt = db.prepare_cached(sql).unwrap();
assert_eq!(0, cache.len()); assert_eq!(0, cache.len());
assert_eq!(0, stmt.query_row(&[], |r| r.get::<_, i64>(0)).unwrap()); assert_eq!(
0,
stmt.query_row(NO_PARAMS, |r| r.get::<_, i64>(0)).unwrap()
);
stmt.discard(); stmt.discard();
} }
assert_eq!(0, cache.len()); assert_eq!(0, cache.len());
@ -259,7 +277,7 @@ mod test {
let mut stmt = db.prepare_cached(sql).unwrap(); let mut stmt = db.prepare_cached(sql).unwrap();
assert_eq!( assert_eq!(
1i32, 1i32,
stmt.query_map::<i32, _>(&[], |r| r.get(0)) stmt.query_map::<i32, _, _>(NO_PARAMS, |r| r.get(0))
.unwrap() .unwrap()
.next() .next()
.unwrap() .unwrap()
@ -278,7 +296,7 @@ mod test {
let mut stmt = db.prepare_cached(sql).unwrap(); let mut stmt = db.prepare_cached(sql).unwrap();
assert_eq!( assert_eq!(
(1i32, 2i32), (1i32, 2i32),
stmt.query_map(&[], |r| (r.get(0), r.get(1))) stmt.query_map(NO_PARAMS, |r| (r.get(0), r.get(1)))
.unwrap() .unwrap()
.next() .next()
.unwrap() .unwrap()
@ -306,14 +324,20 @@ mod test {
{ {
let mut stmt = db.prepare_cached(sql).unwrap(); let mut stmt = db.prepare_cached(sql).unwrap();
assert_eq!(0, cache.len()); assert_eq!(0, cache.len());
assert_eq!(0, stmt.query_row(&[], |r| r.get::<_, i64>(0)).unwrap()); assert_eq!(
0,
stmt.query_row(NO_PARAMS, |r| r.get::<_, i64>(0)).unwrap()
);
} }
assert_eq!(1, cache.len()); assert_eq!(1, cache.len());
{ {
let mut stmt = db.prepare_cached(sql).unwrap(); let mut stmt = db.prepare_cached(sql).unwrap();
assert_eq!(0, cache.len()); assert_eq!(0, cache.len());
assert_eq!(0, stmt.query_row(&[], |r| r.get::<_, i64>(0)).unwrap()); assert_eq!(
0,
stmt.query_row(NO_PARAMS, |r| r.get::<_, i64>(0)).unwrap()
);
} }
assert_eq!(1, cache.len()); assert_eq!(1, cache.len());
} }

46
src/functions.rs
View File

@ -14,7 +14,7 @@
//! extern crate regex; //! extern crate regex;
//! //!
//! use regex::Regex; //! use regex::Regex;
//! use rusqlite::{Connection, Error, Result}; //! use rusqlite::{Connection, Error, Result, NO_PARAMS};
//! use std::collections::HashMap; //! use std::collections::HashMap;
//! //!
//! fn add_regexp_function(db: &Connection) -> Result<()> { //! fn add_regexp_function(db: &Connection) -> Result<()> {
@ -43,9 +43,11 @@
//! add_regexp_function(&db).unwrap(); //! add_regexp_function(&db).unwrap();
//! //!
//! let is_match: bool = db //! let is_match: bool = db
//! .query_row("SELECT regexp('[aeiou]*', 'aaaaeeeiii')", &[], |row| { //! .query_row(
//! row.get(0) //! "SELECT regexp('[aeiou]*', 'aaaaeeeiii')",
//! }).unwrap(); //! NO_PARAMS,
//! |row| row.get(0),
//! ).unwrap();
//! //!
//! assert!(is_match); //! assert!(is_match);
//! } //! }
@ -209,14 +211,14 @@ impl Connection {
/// # Example /// # Example
/// ///
/// ```rust /// ```rust
/// # use rusqlite::{Connection, Result}; /// # use rusqlite::{Connection, Result, NO_PARAMS};
/// fn scalar_function_example(db: Connection) -> Result<()> { /// fn scalar_function_example(db: Connection) -> Result<()> {
/// try!(db.create_scalar_function("halve", 1, true, |ctx| { /// try!(db.create_scalar_function("halve", 1, true, |ctx| {
/// let value = try!(ctx.get::<f64>(0)); /// let value = try!(ctx.get::<f64>(0));
/// Ok(value / 2f64) /// Ok(value / 2f64)
/// })); /// }));
/// ///
/// let six_halved: f64 = try!(db.query_row("SELECT halve(6)", &[], |r| r.get(0))); /// let six_halved: f64 = try!(db.query_row("SELECT halve(6)", NO_PARAMS, |r| r.get(0)));
/// assert_eq!(six_halved, 3f64); /// assert_eq!(six_halved, 3f64);
/// Ok(()) /// Ok(())
/// } /// }
@ -478,7 +480,7 @@ mod test {
use std::os::raw::c_double; use std::os::raw::c_double;
use functions::{Aggregate, Context}; use functions::{Aggregate, Context};
use {Connection, Error, Result}; use {Connection, Error, Result, NO_PARAMS};
fn half(ctx: &Context) -> Result<c_double> { fn half(ctx: &Context) -> Result<c_double> {
assert!(ctx.len() == 1, "called with unexpected number of arguments"); assert!(ctx.len() == 1, "called with unexpected number of arguments");
@ -490,7 +492,7 @@ mod test {
fn test_function_half() { fn test_function_half() {
let db = Connection::open_in_memory().unwrap(); let db = Connection::open_in_memory().unwrap();
db.create_scalar_function("half", 1, true, half).unwrap(); db.create_scalar_function("half", 1, true, half).unwrap();
let result: Result<f64> = db.query_row("SELECT half(6)", &[], |r| r.get(0)); let result: Result<f64> = db.query_row("SELECT half(6)", NO_PARAMS, |r| r.get(0));
assert!((3f64 - result.unwrap()).abs() < EPSILON); assert!((3f64 - result.unwrap()).abs() < EPSILON);
} }
@ -499,11 +501,11 @@ mod test {
fn test_remove_function() { fn test_remove_function() {
let db = Connection::open_in_memory().unwrap(); let db = Connection::open_in_memory().unwrap();
db.create_scalar_function("half", 1, true, half).unwrap(); db.create_scalar_function("half", 1, true, half).unwrap();
let result: Result<f64> = db.query_row("SELECT half(6)", &[], |r| r.get(0)); let result: Result<f64> = db.query_row("SELECT half(6)", NO_PARAMS, |r| r.get(0));
assert!((3f64 - result.unwrap()).abs() < EPSILON); assert!((3f64 - result.unwrap()).abs() < EPSILON);
db.remove_function("half", 1).unwrap(); db.remove_function("half", 1).unwrap();
let result: Result<f64> = db.query_row("SELECT half(6)", &[], |r| r.get(0)); let result: Result<f64> = db.query_row("SELECT half(6)", NO_PARAMS, |r| r.get(0));
assert!(result.is_err()); assert!(result.is_err());
} }
@ -554,13 +556,15 @@ mod test {
.unwrap(); .unwrap();
let result: Result<bool> = let result: Result<bool> =
db.query_row("SELECT regexp('l.s[aeiouy]', 'lisa')", &[], |r| r.get(0)); db.query_row("SELECT regexp('l.s[aeiouy]', 'lisa')", NO_PARAMS, |r| {
r.get(0)
});
assert_eq!(true, result.unwrap()); assert_eq!(true, result.unwrap());
let result: Result<i64> = db.query_row( let result: Result<i64> = db.query_row(
"SELECT COUNT(*) FROM foo WHERE regexp('l.s[aeiouy]', x) == 1", "SELECT COUNT(*) FROM foo WHERE regexp('l.s[aeiouy]', x) == 1",
&[], NO_PARAMS,
|r| r.get(0), |r| r.get(0),
); );
@ -604,13 +608,15 @@ mod test {
}).unwrap(); }).unwrap();
let result: Result<bool> = let result: Result<bool> =
db.query_row("SELECT regexp('l.s[aeiouy]', 'lisa')", &[], |r| r.get(0)); db.query_row("SELECT regexp('l.s[aeiouy]', 'lisa')", NO_PARAMS, |r| {
r.get(0)
});
assert_eq!(true, result.unwrap()); assert_eq!(true, result.unwrap());
let result: Result<i64> = db.query_row( let result: Result<i64> = db.query_row(
"SELECT COUNT(*) FROM foo WHERE regexp('l.s[aeiouy]', x) == 1", "SELECT COUNT(*) FROM foo WHERE regexp('l.s[aeiouy]', x) == 1",
&[], NO_PARAMS,
|r| r.get(0), |r| r.get(0),
); );
@ -636,7 +642,7 @@ mod test {
("onetwo", "SELECT my_concat('one', 'two')"), ("onetwo", "SELECT my_concat('one', 'two')"),
("abc", "SELECT my_concat('a', 'b', 'c')"), ("abc", "SELECT my_concat('a', 'b', 'c')"),
] { ] {
let result: String = db.query_row(query, &[], |r| r.get(0)).unwrap(); let result: String = db.query_row(query, NO_PARAMS, |r| r.get(0)).unwrap();
assert_eq!(expected, result); assert_eq!(expected, result);
} }
} }
@ -682,17 +688,17 @@ mod test {
// sum should return NULL when given no columns (contrast with count below) // sum should return NULL when given no columns (contrast with count below)
let no_result = "SELECT my_sum(i) FROM (SELECT 2 AS i WHERE 1 <> 1)"; let no_result = "SELECT my_sum(i) FROM (SELECT 2 AS i WHERE 1 <> 1)";
let result: Option<i64> = db.query_row(no_result, &[], |r| r.get(0)).unwrap(); let result: Option<i64> = db.query_row(no_result, NO_PARAMS, |r| r.get(0)).unwrap();
assert!(result.is_none()); assert!(result.is_none());
let single_sum = "SELECT my_sum(i) FROM (SELECT 2 AS i UNION ALL SELECT 2)"; let single_sum = "SELECT my_sum(i) FROM (SELECT 2 AS i UNION ALL SELECT 2)";
let result: i64 = db.query_row(single_sum, &[], |r| r.get(0)).unwrap(); let result: i64 = db.query_row(single_sum, NO_PARAMS, |r| r.get(0)).unwrap();
assert_eq!(4, result); assert_eq!(4, result);
let dual_sum = "SELECT my_sum(i), my_sum(j) FROM (SELECT 2 AS i, 1 AS j UNION ALL SELECT \ let dual_sum = "SELECT my_sum(i), my_sum(j) FROM (SELECT 2 AS i, 1 AS j UNION ALL SELECT \
2, 1)"; 2, 1)";
let result: (i64, i64) = db let result: (i64, i64) = db
.query_row(dual_sum, &[], |r| (r.get(0), r.get(1))) .query_row(dual_sum, NO_PARAMS, |r| (r.get(0), r.get(1)))
.unwrap(); .unwrap();
assert_eq!((4, 2), result); assert_eq!((4, 2), result);
} }
@ -705,11 +711,11 @@ mod test {
// count should return 0 when given no columns (contrast with sum above) // count should return 0 when given no columns (contrast with sum above)
let no_result = "SELECT my_count(i) FROM (SELECT 2 AS i WHERE 1 <> 1)"; let no_result = "SELECT my_count(i) FROM (SELECT 2 AS i WHERE 1 <> 1)";
let result: i64 = db.query_row(no_result, &[], |r| r.get(0)).unwrap(); let result: i64 = db.query_row(no_result, NO_PARAMS, |r| r.get(0)).unwrap();
assert_eq!(result, 0); assert_eq!(result, 0);
let single_sum = "SELECT my_count(i) FROM (SELECT 2 AS i UNION ALL SELECT 2)"; let single_sum = "SELECT my_count(i) FROM (SELECT 2 AS i UNION ALL SELECT 2)";
let result: i64 = db.query_row(single_sum, &[], |r| r.get(0)).unwrap(); let result: i64 = db.query_row(single_sum, NO_PARAMS, |r| r.get(0)).unwrap();
assert_eq!(2, result); assert_eq!(2, result);
} }
} }

177
src/lib.rs
View File

@ -5,7 +5,8 @@
//! extern crate rusqlite; //! extern crate rusqlite;
//! extern crate time; //! extern crate time;
//! //!
//! use rusqlite::Connection; //! use rusqlite::types::ToSql;
//! use rusqlite::{Connection, NO_PARAMS};
//! use time::Timespec; //! use time::Timespec;
//! //!
//! #[derive(Debug)] //! #[derive(Debug)]
@ -26,7 +27,7 @@
//! time_created TEXT NOT NULL, //! time_created TEXT NOT NULL,
//! data BLOB //! data BLOB
//! )", //! )",
//! &[], //! NO_PARAMS,
//! ).unwrap(); //! ).unwrap();
//! let me = Person { //! let me = Person {
//! id: 0, //! id: 0,
@ -37,14 +38,14 @@
//! conn.execute( //! conn.execute(
//! "INSERT INTO person (name, time_created, data) //! "INSERT INTO person (name, time_created, data)
//! VALUES (?1, ?2, ?3)", //! VALUES (?1, ?2, ?3)",
//! &[&me.name, &me.time_created, &me.data], //! &[&me.name as &ToSql, &me.time_created, &me.data],
//! ).unwrap(); //! ).unwrap();
//! //!
//! let mut stmt = conn //! let mut stmt = conn
//! .prepare("SELECT id, name, time_created, data FROM person") //! .prepare("SELECT id, name, time_created, data FROM person")
//! .unwrap(); //! .unwrap();
//! let person_iter = stmt //! let person_iter = stmt
//! .query_map(&[], |row| Person { //! .query_map(NO_PARAMS, |row| Person {
//! id: row.get(0), //! id: row.get(0),
//! name: row.get(1), //! name: row.get(1),
//! time_created: row.get(2), //! time_created: row.get(2),
@ -139,6 +140,8 @@ pub mod vtab;
// Number of cached prepared statements we'll hold on to. // Number of cached prepared statements we'll hold on to.
const STATEMENT_CACHE_DEFAULT_CAPACITY: usize = 16; const STATEMENT_CACHE_DEFAULT_CAPACITY: usize = 16;
/// To be used when your statement has no [parameter](https://sqlite.org/lang_expr.html#varparam).
pub const NO_PARAMS: &'static [&'static ToSql] = &[];
/// Old name for `Result`. `SqliteResult` is deprecated. /// Old name for `Result`. `SqliteResult` is deprecated.
#[deprecated(since = "0.6.0", note = "Use Result instead")] #[deprecated(since = "0.6.0", note = "Use Result instead")]
@ -306,7 +309,7 @@ impl Connection {
/// ```rust,no_run /// ```rust,no_run
/// # use rusqlite::{Connection}; /// # use rusqlite::{Connection};
/// fn update_rows(conn: &Connection) { /// fn update_rows(conn: &Connection) {
/// match conn.execute("UPDATE foo SET bar = 'baz' WHERE qux = ?", &[&1i32]) { /// match conn.execute("UPDATE foo SET bar = 'baz' WHERE qux = ?", &[1i32]) {
/// Ok(updated) => println!("{} rows were updated", updated), /// Ok(updated) => println!("{} rows were updated", updated),
/// Err(err) => println!("update failed: {}", err), /// Err(err) => println!("update failed: {}", err),
/// } /// }
@ -317,7 +320,11 @@ impl Connection {
/// ///
/// Will return `Err` if `sql` cannot be converted to a C-compatible string /// Will return `Err` if `sql` cannot be converted to a C-compatible string
/// or if the underlying SQLite call fails. /// or if the underlying SQLite call fails.
pub fn execute(&self, sql: &str, params: &[&ToSql]) -> Result<usize> { pub fn execute<P>(&self, sql: &str, params: P) -> Result<usize>
where
P: IntoIterator,
P::Item: ToSql,
{
self.prepare(sql).and_then(|mut stmt| stmt.execute(params)) self.prepare(sql).and_then(|mut stmt| stmt.execute(params))
} }
@ -362,11 +369,11 @@ impl Connection {
/// ## Example /// ## Example
/// ///
/// ```rust,no_run /// ```rust,no_run
/// # use rusqlite::{Result,Connection}; /// # use rusqlite::{Result,Connection, NO_PARAMS};
/// fn preferred_locale(conn: &Connection) -> Result<String> { /// fn preferred_locale(conn: &Connection) -> Result<String> {
/// conn.query_row( /// conn.query_row(
/// "SELECT value FROM preferences WHERE name='locale'", /// "SELECT value FROM preferences WHERE name='locale'",
/// &[], /// NO_PARAMS,
/// |row| row.get(0), /// |row| row.get(0),
/// ) /// )
/// } /// }
@ -379,8 +386,10 @@ impl Connection {
/// ///
/// Will return `Err` if `sql` cannot be converted to a C-compatible string /// Will return `Err` if `sql` cannot be converted to a C-compatible string
/// or if the underlying SQLite call fails. /// or if the underlying SQLite call fails.
pub fn query_row<T, F>(&self, sql: &str, params: &[&ToSql], f: F) -> Result<T> pub fn query_row<T, P, F>(&self, sql: &str, params: P, f: F) -> Result<T>
where where
P: IntoIterator,
P::Item: ToSql,
F: FnOnce(&Row) -> T, F: FnOnce(&Row) -> T,
{ {
let mut stmt = try!(self.prepare(sql)); let mut stmt = try!(self.prepare(sql));
@ -415,11 +424,11 @@ impl Connection {
/// ## Example /// ## Example
/// ///
/// ```rust,no_run /// ```rust,no_run
/// # use rusqlite::{Result,Connection}; /// # use rusqlite::{Result,Connection, NO_PARAMS};
/// fn preferred_locale(conn: &Connection) -> Result<String> { /// fn preferred_locale(conn: &Connection) -> Result<String> {
/// conn.query_row_and_then( /// conn.query_row_and_then(
/// "SELECT value FROM preferences WHERE name='locale'", /// "SELECT value FROM preferences WHERE name='locale'",
/// &[], /// NO_PARAMS,
/// |row| row.get_checked(0), /// |row| row.get_checked(0),
/// ) /// )
/// } /// }
@ -432,13 +441,10 @@ impl Connection {
/// ///
/// Will return `Err` if `sql` cannot be converted to a C-compatible string /// Will return `Err` if `sql` cannot be converted to a C-compatible string
/// or if the underlying SQLite call fails. /// or if the underlying SQLite call fails.
pub fn query_row_and_then<T, E, F>( pub fn query_row_and_then<T, E, P, F>(&self, sql: &str, params: P, f: F) -> result::Result<T, E>
&self,
sql: &str,
params: &[&ToSql],
f: F,
) -> result::Result<T, E>
where where
P: IntoIterator,
P::Item: ToSql,
F: FnOnce(&Row) -> result::Result<T, E>, F: FnOnce(&Row) -> result::Result<T, E>,
E: convert::From<Error>, E: convert::From<Error>,
{ {
@ -448,37 +454,6 @@ impl Connection {
rows.get_expected_row().map_err(E::from).and_then(|r| f(&r)) rows.get_expected_row().map_err(E::from).and_then(|r| f(&r))
} }
/// Convenience method to execute a query that is expected to return a
/// single row.
///
/// ## Example
///
/// ```rust,no_run
/// # use rusqlite::{Result,Connection};
/// fn preferred_locale(conn: &Connection) -> Result<String> {
/// conn.query_row_safe(
/// "SELECT value FROM preferences WHERE name='locale'",
/// &[],
/// |row| row.get(0),
/// )
/// }
/// ```
///
/// If the query returns more than one row, all rows except the first are
/// ignored.
///
/// ## Deprecated
///
/// This method should be considered deprecated. Use `query_row` instead,
/// which now does exactly the same thing.
#[deprecated(since = "0.1.0", note = "Use query_row instead")]
pub fn query_row_safe<T, F>(&self, sql: &str, params: &[&ToSql], f: F) -> Result<T>
where
F: FnOnce(&Row) -> T,
{
self.query_row(sql, params, f)
}
/// Prepare a SQL statement for execution. /// Prepare a SQL statement for execution.
/// ///
/// ## Example /// ## Example
@ -487,8 +462,8 @@ impl Connection {
/// # use rusqlite::{Connection, Result}; /// # use rusqlite::{Connection, Result};
/// fn insert_new_people(conn: &Connection) -> Result<()> { /// fn insert_new_people(conn: &Connection) -> Result<()> {
/// let mut stmt = try!(conn.prepare("INSERT INTO People (name) VALUES (?)")); /// let mut stmt = try!(conn.prepare("INSERT INTO People (name) VALUES (?)"));
/// try!(stmt.execute(&[&"Joe Smith"])); /// try!(stmt.execute(&["Joe Smith"]));
/// try!(stmt.execute(&[&"Bob Jones"])); /// try!(stmt.execute(&["Bob Jones"]));
/// Ok(()) /// Ok(())
/// } /// }
/// ``` /// ```
@ -1089,14 +1064,14 @@ mod test {
// SELECT first makes sqlite lock with a shared lock // SELECT first makes sqlite lock with a shared lock
let _ = tx1 let _ = tx1
.query_row("SELECT x FROM foo LIMIT 1", &[], |_| ()) .query_row("SELECT x FROM foo LIMIT 1", NO_PARAMS, |_| ())
.unwrap(); .unwrap();
let _ = tx2 let _ = tx2
.query_row("SELECT x FROM foo LIMIT 1", &[], |_| ()) .query_row("SELECT x FROM foo LIMIT 1", NO_PARAMS, |_| ())
.unwrap(); .unwrap();
tx1.execute("INSERT INTO foo VALUES(?1)", &[&1]).unwrap(); tx1.execute("INSERT INTO foo VALUES(?1)", &[1]).unwrap();
let _ = tx2.execute("INSERT INTO foo VALUES(?1)", &[&2]); let _ = tx2.execute("INSERT INTO foo VALUES(?1)", &[2]);
let _ = tx1.commit(); let _ = tx1.commit();
let _ = tx2.commit(); let _ = tx2.commit();
@ -1126,7 +1101,7 @@ mod test {
let path_string = path.to_str().unwrap(); let path_string = path.to_str().unwrap();
let db = Connection::open(&path_string).unwrap(); let db = Connection::open(&path_string).unwrap();
let the_answer: Result<i64> = db.query_row("SELECT x FROM foo", &[], |r| r.get(0)); let the_answer: Result<i64> = db.query_row("SELECT x FROM foo", NO_PARAMS, |r| r.get(0));
assert_eq!(42i64, the_answer.unwrap()); assert_eq!(42i64, the_answer.unwrap());
} }
@ -1216,18 +1191,18 @@ mod test {
assert_eq!( assert_eq!(
1, 1,
db.execute("INSERT INTO foo(x) VALUES (?)", &[&1i32]) db.execute("INSERT INTO foo(x) VALUES (?)", &[1i32])
.unwrap() .unwrap()
); );
assert_eq!( assert_eq!(
1, 1,
db.execute("INSERT INTO foo(x) VALUES (?)", &[&2i32]) db.execute("INSERT INTO foo(x) VALUES (?)", &[2i32])
.unwrap() .unwrap()
); );
assert_eq!( assert_eq!(
3i32, 3i32,
db.query_row::<i32, _>("SELECT SUM(x) FROM foo", &[], |r| r.get(0)) db.query_row::<i32, _, _>("SELECT SUM(x) FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap() .unwrap()
); );
} }
@ -1235,7 +1210,7 @@ mod test {
#[test] #[test]
fn test_execute_select() { fn test_execute_select() {
let db = checked_memory_handle(); let db = checked_memory_handle();
let err = db.execute("SELECT 1 WHERE 1 < ?", &[&1i32]).unwrap_err(); let err = db.execute("SELECT 1 WHERE 1 < ?", &[1i32]).unwrap_err();
match err { match err {
Error::ExecuteReturnedResults => (), Error::ExecuteReturnedResults => (),
_ => panic!("Unexpected error: {}", err), _ => panic!("Unexpected error: {}", err),
@ -1262,18 +1237,18 @@ mod test {
db.execute_batch("CREATE TABLE foo(x INTEGER);").unwrap(); db.execute_batch("CREATE TABLE foo(x INTEGER);").unwrap();
let mut insert_stmt = db.prepare("INSERT INTO foo(x) VALUES(?)").unwrap(); let mut insert_stmt = db.prepare("INSERT INTO foo(x) VALUES(?)").unwrap();
assert_eq!(insert_stmt.execute(&[&1i32]).unwrap(), 1); assert_eq!(insert_stmt.execute(&[1i32]).unwrap(), 1);
assert_eq!(insert_stmt.execute(&[&2i32]).unwrap(), 1); assert_eq!(insert_stmt.execute(&[2i32]).unwrap(), 1);
assert_eq!(insert_stmt.execute(&[&3i32]).unwrap(), 1); assert_eq!(insert_stmt.execute(&[3i32]).unwrap(), 1);
assert_eq!(insert_stmt.execute(&[&"hello".to_string()]).unwrap(), 1); assert_eq!(insert_stmt.execute(&["hello".to_string()]).unwrap(), 1);
assert_eq!(insert_stmt.execute(&[&"goodbye".to_string()]).unwrap(), 1); assert_eq!(insert_stmt.execute(&["goodbye".to_string()]).unwrap(), 1);
assert_eq!(insert_stmt.execute(&[&types::Null]).unwrap(), 1); assert_eq!(insert_stmt.execute(&[types::Null]).unwrap(), 1);
let mut update_stmt = db.prepare("UPDATE foo SET x=? WHERE x<?").unwrap(); let mut update_stmt = db.prepare("UPDATE foo SET x=? WHERE x<?").unwrap();
assert_eq!(update_stmt.execute(&[&3i32, &3i32]).unwrap(), 2); assert_eq!(update_stmt.execute(&[3i32, 3i32]).unwrap(), 2);
assert_eq!(update_stmt.execute(&[&3i32, &3i32]).unwrap(), 0); assert_eq!(update_stmt.execute(&[3i32, 3i32]).unwrap(), 0);
assert_eq!(update_stmt.execute(&[&8i32, &8i32]).unwrap(), 3); assert_eq!(update_stmt.execute(&[8i32, 8i32]).unwrap(), 3);
} }
#[test] #[test]
@ -1282,15 +1257,15 @@ mod test {
db.execute_batch("CREATE TABLE foo(x INTEGER);").unwrap(); db.execute_batch("CREATE TABLE foo(x INTEGER);").unwrap();
let mut insert_stmt = db.prepare("INSERT INTO foo(x) VALUES(?)").unwrap(); let mut insert_stmt = db.prepare("INSERT INTO foo(x) VALUES(?)").unwrap();
assert_eq!(insert_stmt.execute(&[&1i32]).unwrap(), 1); assert_eq!(insert_stmt.execute(&[1i32]).unwrap(), 1);
assert_eq!(insert_stmt.execute(&[&2i32]).unwrap(), 1); assert_eq!(insert_stmt.execute(&[2i32]).unwrap(), 1);
assert_eq!(insert_stmt.execute(&[&3i32]).unwrap(), 1); assert_eq!(insert_stmt.execute(&[3i32]).unwrap(), 1);
let mut query = db let mut query = db
.prepare("SELECT x FROM foo WHERE x < ? ORDER BY x DESC") .prepare("SELECT x FROM foo WHERE x < ? ORDER BY x DESC")
.unwrap(); .unwrap();
{ {
let mut rows = query.query(&[&4i32]).unwrap(); let mut rows = query.query(&[4i32]).unwrap();
let mut v = Vec::<i32>::new(); let mut v = Vec::<i32>::new();
while let Some(row) = rows.next() { while let Some(row) = rows.next() {
@ -1301,7 +1276,7 @@ mod test {
} }
{ {
let mut rows = query.query(&[&3i32]).unwrap(); let mut rows = query.query(&[3i32]).unwrap();
let mut v = Vec::<i32>::new(); let mut v = Vec::<i32>::new();
while let Some(row) = rows.next() { while let Some(row) = rows.next() {
@ -1325,8 +1300,10 @@ mod test {
db.execute_batch(sql).unwrap(); db.execute_batch(sql).unwrap();
let mut query = db.prepare("SELECT x, y FROM foo ORDER BY x DESC").unwrap(); let mut query = db.prepare("SELECT x, y FROM foo ORDER BY x DESC").unwrap();
let results: Result<Vec<String>> = let results: Result<Vec<String>> = query
query.query_map(&[], |row| row.get(1)).unwrap().collect(); .query_map(NO_PARAMS, |row| row.get(1))
.unwrap()
.collect();
assert_eq!(results.unwrap().concat(), "hello, world!"); assert_eq!(results.unwrap().concat(), "hello, world!");
} }
@ -1345,17 +1322,18 @@ mod test {
assert_eq!( assert_eq!(
10i64, 10i64,
db.query_row::<i64, _>("SELECT SUM(x) FROM foo", &[], |r| r.get(0)) db.query_row::<i64, _, _>("SELECT SUM(x) FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap() .unwrap()
); );
let result: Result<i64> = db.query_row("SELECT x FROM foo WHERE x > 5", &[], |r| r.get(0)); let result: Result<i64> =
db.query_row("SELECT x FROM foo WHERE x > 5", NO_PARAMS, |r| r.get(0));
match result.unwrap_err() { match result.unwrap_err() {
Error::QueryReturnedNoRows => (), Error::QueryReturnedNoRows => (),
err => panic!("Unexpected error {}", err), err => panic!("Unexpected error {}", err),
} }
let bad_query_result = db.query_row("NOT A PROPER QUERY; test123", &[], |_| ()); let bad_query_result = db.query_row("NOT A PROPER QUERY; test123", NO_PARAMS, |_| ());
assert!(bad_query_result.is_err()); assert!(bad_query_result.is_err());
} }
@ -1366,12 +1344,12 @@ mod test {
assert_eq!( assert_eq!(
"memory", "memory",
db.query_row::<String, _>("PRAGMA journal_mode", &[], |r| r.get(0)) db.query_row::<String, _, _>("PRAGMA journal_mode", NO_PARAMS, |r| r.get(0))
.unwrap() .unwrap()
); );
assert_eq!( assert_eq!(
"off", "off",
db.query_row::<String, _>("PRAGMA journal_mode=off", &[], |r| r.get(0)) db.query_row::<String, _, _>("PRAGMA journal_mode=off", NO_PARAMS, |r| r.get(0))
.unwrap() .unwrap()
); );
} }
@ -1396,7 +1374,7 @@ mod test {
let mut stmt = db.prepare("INSERT INTO foo DEFAULT VALUES").unwrap(); let mut stmt = db.prepare("INSERT INTO foo DEFAULT VALUES").unwrap();
for _ in 0i32..9 { for _ in 0i32..9 {
stmt.execute(&[]).unwrap(); stmt.execute(NO_PARAMS).unwrap();
} }
assert_eq!(db.last_insert_rowid(), 10); assert_eq!(db.last_insert_rowid(), 10);
} }
@ -1418,7 +1396,7 @@ mod test {
let mut stmt = db.prepare("PRAGMA schema_version").unwrap(); let mut stmt = db.prepare("PRAGMA schema_version").unwrap();
assert!(!db.is_busy()); assert!(!db.is_busy());
{ {
let mut rows = stmt.query(&[]).unwrap(); let mut rows = stmt.query(NO_PARAMS).unwrap();
assert!(!db.is_busy()); assert!(!db.is_busy());
let row = rows.next(); let row = rows.next();
assert!(db.is_busy()); assert!(db.is_busy());
@ -1450,7 +1428,7 @@ mod test {
let db = checked_memory_handle(); let db = checked_memory_handle();
db.execute_batch("CREATE TABLE foo(x NOT NULL)").unwrap(); db.execute_batch("CREATE TABLE foo(x NOT NULL)").unwrap();
let result = db.execute("INSERT INTO foo (x) VALUES (NULL)", &[]); let result = db.execute("INSERT INTO foo (x) VALUES (NULL)", NO_PARAMS);
assert!(result.is_err()); assert!(result.is_err());
match result.unwrap_err() { match result.unwrap_err() {
@ -1526,7 +1504,7 @@ mod test {
let mut query = db.prepare("SELECT x, y FROM foo ORDER BY x DESC").unwrap(); let mut query = db.prepare("SELECT x, y FROM foo ORDER BY x DESC").unwrap();
let results: Result<Vec<String>> = query let results: Result<Vec<String>> = query
.query_and_then(&[], |row| row.get_checked(1)) .query_and_then(NO_PARAMS, |row| row.get_checked(1))
.unwrap() .unwrap()
.collect(); .collect();
@ -1547,7 +1525,7 @@ mod test {
let mut query = db.prepare("SELECT x, y FROM foo ORDER BY x DESC").unwrap(); let mut query = db.prepare("SELECT x, y FROM foo ORDER BY x DESC").unwrap();
let bad_type: Result<Vec<f64>> = query let bad_type: Result<Vec<f64>> = query
.query_and_then(&[], |row| row.get_checked(1)) .query_and_then(NO_PARAMS, |row| row.get_checked(1))
.unwrap() .unwrap()
.collect(); .collect();
@ -1557,7 +1535,7 @@ mod test {
} }
let bad_idx: Result<Vec<String>> = query let bad_idx: Result<Vec<String>> = query
.query_and_then(&[], |row| row.get_checked(3)) .query_and_then(NO_PARAMS, |row| row.get_checked(3))
.unwrap() .unwrap()
.collect(); .collect();
@ -1581,8 +1559,9 @@ mod test {
let mut query = db.prepare("SELECT x, y FROM foo ORDER BY x DESC").unwrap(); let mut query = db.prepare("SELECT x, y FROM foo ORDER BY x DESC").unwrap();
let results: CustomResult<Vec<String>> = query let results: CustomResult<Vec<String>> = query
.query_and_then(&[], |row| row.get_checked(1).map_err(CustomError::Sqlite)) .query_and_then(NO_PARAMS, |row| {
.unwrap() row.get_checked(1).map_err(CustomError::Sqlite)
}).unwrap()
.collect(); .collect();
assert_eq!(results.unwrap().concat(), "hello, world!"); assert_eq!(results.unwrap().concat(), "hello, world!");
@ -1602,8 +1581,9 @@ mod test {
let mut query = db.prepare("SELECT x, y FROM foo ORDER BY x DESC").unwrap(); let mut query = db.prepare("SELECT x, y FROM foo ORDER BY x DESC").unwrap();
let bad_type: CustomResult<Vec<f64>> = query let bad_type: CustomResult<Vec<f64>> = query
.query_and_then(&[], |row| row.get_checked(1).map_err(CustomError::Sqlite)) .query_and_then(NO_PARAMS, |row| {
.unwrap() row.get_checked(1).map_err(CustomError::Sqlite)
}).unwrap()
.collect(); .collect();
match bad_type.unwrap_err() { match bad_type.unwrap_err() {
@ -1612,8 +1592,9 @@ mod test {
} }
let bad_idx: CustomResult<Vec<String>> = query let bad_idx: CustomResult<Vec<String>> = query
.query_and_then(&[], |row| row.get_checked(3).map_err(CustomError::Sqlite)) .query_and_then(NO_PARAMS, |row| {
.unwrap() row.get_checked(3).map_err(CustomError::Sqlite)
}).unwrap()
.collect(); .collect();
match bad_idx.unwrap_err() { match bad_idx.unwrap_err() {
@ -1622,7 +1603,7 @@ mod test {
} }
let non_sqlite_err: CustomResult<Vec<String>> = query let non_sqlite_err: CustomResult<Vec<String>> = query
.query_and_then(&[], |_| Err(CustomError::SomeError)) .query_and_then(NO_PARAMS, |_| Err(CustomError::SomeError))
.unwrap() .unwrap()
.collect(); .collect();
@ -1642,7 +1623,7 @@ mod test {
db.execute_batch(sql).unwrap(); db.execute_batch(sql).unwrap();
let query = "SELECT x, y FROM foo ORDER BY x DESC"; let query = "SELECT x, y FROM foo ORDER BY x DESC";
let results: CustomResult<String> = db.query_row_and_then(query, &[], |row| { let results: CustomResult<String> = db.query_row_and_then(query, NO_PARAMS, |row| {
row.get_checked(1).map_err(CustomError::Sqlite) row.get_checked(1).map_err(CustomError::Sqlite)
}); });
@ -1659,7 +1640,7 @@ mod test {
db.execute_batch(sql).unwrap(); db.execute_batch(sql).unwrap();
let query = "SELECT x, y FROM foo ORDER BY x DESC"; let query = "SELECT x, y FROM foo ORDER BY x DESC";
let bad_type: CustomResult<f64> = db.query_row_and_then(query, &[], |row| { let bad_type: CustomResult<f64> = db.query_row_and_then(query, NO_PARAMS, |row| {
row.get_checked(1).map_err(CustomError::Sqlite) row.get_checked(1).map_err(CustomError::Sqlite)
}); });
@ -1668,7 +1649,7 @@ mod test {
err => panic!("Unexpected error {}", err), err => panic!("Unexpected error {}", err),
} }
let bad_idx: CustomResult<String> = db.query_row_and_then(query, &[], |row| { let bad_idx: CustomResult<String> = db.query_row_and_then(query, NO_PARAMS, |row| {
row.get_checked(3).map_err(CustomError::Sqlite) row.get_checked(3).map_err(CustomError::Sqlite)
}); });
@ -1678,7 +1659,7 @@ mod test {
} }
let non_sqlite_err: CustomResult<String> = let non_sqlite_err: CustomResult<String> =
db.query_row_and_then(query, &[], |_| Err(CustomError::SomeError)); db.query_row_and_then(query, NO_PARAMS, |_| Err(CustomError::SomeError));
match non_sqlite_err.unwrap_err() { match non_sqlite_err.unwrap_err() {
CustomError::SomeError => (), CustomError::SomeError => (),
@ -1695,7 +1676,7 @@ mod test {
END;"; END;";
db.execute_batch(sql).unwrap(); db.execute_batch(sql).unwrap();
db.query_row("SELECT * FROM foo", &[], |r| { db.query_row("SELECT * FROM foo", NO_PARAMS, |r| {
assert_eq!(2, r.column_count()) assert_eq!(2, r.column_count())
}).unwrap(); }).unwrap();
} }

116
src/statement.rs
View File

@ -1,4 +1,5 @@
use std::ffi::CStr; use std::ffi::CStr;
use std::iter::IntoIterator;
use std::os::raw::{c_char, c_int, c_void}; use std::os::raw::{c_char, c_int, c_void};
#[cfg(feature = "array")] #[cfg(feature = "array")]
use std::rc::Rc; use std::rc::Rc;
@ -71,8 +72,8 @@ impl<'conn> Statement<'conn> {
/// fn update_rows(conn: &Connection) -> Result<()> { /// fn update_rows(conn: &Connection) -> Result<()> {
/// let mut stmt = try!(conn.prepare("UPDATE foo SET bar = 'baz' WHERE qux = ?")); /// let mut stmt = try!(conn.prepare("UPDATE foo SET bar = 'baz' WHERE qux = ?"));
/// ///
/// try!(stmt.execute(&[&1i32])); /// try!(stmt.execute(&[1i32]));
/// try!(stmt.execute(&[&2i32])); /// try!(stmt.execute(&[2i32]));
/// ///
/// Ok(()) /// Ok(())
/// } /// }
@ -83,7 +84,11 @@ impl<'conn> Statement<'conn> {
/// Will return `Err` if binding parameters fails, the executed statement /// Will return `Err` if binding parameters fails, the executed statement
/// returns rows (in which case `query` should be used instead), or the /// returns rows (in which case `query` should be used instead), or the
/// underling SQLite call fails. /// underling SQLite call fails.
pub fn execute(&mut self, params: &[&ToSql]) -> Result<usize> { pub fn execute<P>(&mut self, params: P) -> Result<usize>
where
P: IntoIterator,
P::Item: ToSql,
{
try!(self.bind_parameters(params)); try!(self.bind_parameters(params));
self.execute_with_bound_parameters() self.execute_with_bound_parameters()
} }
@ -130,7 +135,11 @@ impl<'conn> Statement<'conn> {
/// # Failure /// # Failure
/// ///
/// Will return `Err` if no row is inserted or many rows are inserted. /// Will return `Err` if no row is inserted or many rows are inserted.
pub fn insert(&mut self, params: &[&ToSql]) -> Result<i64> { pub fn insert<P>(&mut self, params: P) -> Result<i64>
where
P: IntoIterator,
P::Item: ToSql,
{
let changes = try!(self.execute(params)); let changes = try!(self.execute(params));
match changes { match changes {
1 => Ok(self.conn.last_insert_rowid()), 1 => Ok(self.conn.last_insert_rowid()),
@ -148,10 +157,10 @@ impl<'conn> Statement<'conn> {
/// ## Example /// ## Example
/// ///
/// ```rust,no_run /// ```rust,no_run
/// # use rusqlite::{Connection, Result}; /// # use rusqlite::{Connection, Result, NO_PARAMS};
/// fn get_names(conn: &Connection) -> Result<Vec<String>> { /// fn get_names(conn: &Connection) -> Result<Vec<String>> {
/// let mut stmt = try!(conn.prepare("SELECT name FROM people")); /// let mut stmt = try!(conn.prepare("SELECT name FROM people"));
/// let mut rows = try!(stmt.query(&[])); /// let mut rows = try!(stmt.query(NO_PARAMS));
/// ///
/// let mut names = Vec::new(); /// let mut names = Vec::new();
/// while let Some(result_row) = rows.next() { /// while let Some(result_row) = rows.next() {
@ -166,7 +175,11 @@ impl<'conn> Statement<'conn> {
/// ## Failure /// ## Failure
/// ///
/// Will return `Err` if binding parameters fails. /// Will return `Err` if binding parameters fails.
pub fn query<'a>(&'a mut self, params: &[&ToSql]) -> Result<Rows<'a>> { pub fn query<'a, P>(&'a mut self, params: P) -> Result<Rows<'a>>
where
P: IntoIterator,
P::Item: ToSql,
{
try!(self.check_readonly()); try!(self.check_readonly());
try!(self.bind_parameters(params)); try!(self.bind_parameters(params));
Ok(Rows::new(self)) Ok(Rows::new(self))
@ -207,10 +220,10 @@ impl<'conn> Statement<'conn> {
/// ## Example /// ## Example
/// ///
/// ```rust,no_run /// ```rust,no_run
/// # use rusqlite::{Connection, Result}; /// # use rusqlite::{Connection, Result, NO_PARAMS};
/// fn get_names(conn: &Connection) -> Result<Vec<String>> { /// fn get_names(conn: &Connection) -> Result<Vec<String>> {
/// let mut stmt = try!(conn.prepare("SELECT name FROM people")); /// let mut stmt = try!(conn.prepare("SELECT name FROM people"));
/// let rows = try!(stmt.query_map(&[], |row| row.get(0))); /// let rows = try!(stmt.query_map(NO_PARAMS, |row| row.get(0)));
/// ///
/// let mut names = Vec::new(); /// let mut names = Vec::new();
/// for name_result in rows { /// for name_result in rows {
@ -224,8 +237,10 @@ impl<'conn> Statement<'conn> {
/// ## Failure /// ## Failure
/// ///
/// Will return `Err` if binding parameters fails. /// Will return `Err` if binding parameters fails.
pub fn query_map<'a, T, F>(&'a mut self, params: &[&ToSql], f: F) -> Result<MappedRows<'a, F>> pub fn query_map<'a, T, P, F>(&'a mut self, params: P, f: F) -> Result<MappedRows<'a, F>>
where where
P: IntoIterator,
P::Item: ToSql,
F: FnMut(&Row) -> T, F: FnMut(&Row) -> T,
{ {
let rows = self.query(params)?; let rows = self.query(params)?;
@ -278,12 +293,14 @@ impl<'conn> Statement<'conn> {
/// # Failure /// # Failure
/// ///
/// Will return `Err` if binding parameters fails. /// Will return `Err` if binding parameters fails.
pub fn query_and_then<'a, T, E, F>( pub fn query_and_then<'a, T, E, P, F>(
&'a mut self, &'a mut self,
params: &[&ToSql], params: P,
f: F, f: F,
) -> Result<AndThenRows<'a, F>> ) -> Result<AndThenRows<'a, F>>
where where
P: IntoIterator,
P::Item: ToSql,
E: convert::From<Error>, E: convert::From<Error>,
F: FnMut(&Row) -> result::Result<T, E>, F: FnMut(&Row) -> result::Result<T, E>,
{ {
@ -344,7 +361,11 @@ impl<'conn> Statement<'conn> {
/// Return `true` if a query in the SQL statement it executes returns one /// Return `true` if a query in the SQL statement it executes returns one
/// or more rows and `false` if the SQL returns an empty set. /// or more rows and `false` if the SQL returns an empty set.
pub fn exists(&mut self, params: &[&ToSql]) -> Result<bool> { pub fn exists<P>(&mut self, params: P) -> Result<bool>
where
P: IntoIterator,
P::Item: ToSql,
{
let mut rows = try!(self.query(params)); let mut rows = try!(self.query(params));
let exists = { let exists = {
match rows.next() { match rows.next() {
@ -364,8 +385,10 @@ impl<'conn> Statement<'conn> {
/// # Failure /// # Failure
/// ///
/// Will return `Err` if the underlying SQLite call fails. /// Will return `Err` if the underlying SQLite call fails.
pub fn query_row<T, F>(&mut self, params: &[&ToSql], f: F) -> Result<T> pub fn query_row<T, P, F>(&mut self, params: P, f: F) -> Result<T>
where where
P: IntoIterator,
P::Item: ToSql,
F: FnOnce(&Row) -> T, F: FnOnce(&Row) -> T,
{ {
let mut rows = try!(self.query(params)); let mut rows = try!(self.query(params));
@ -396,18 +419,25 @@ impl<'conn> Statement<'conn> {
Ok(self.stmt.bind_parameter_index(&c_name)) Ok(self.stmt.bind_parameter_index(&c_name))
} }
fn bind_parameters(&mut self, params: &[&ToSql]) -> Result<()> { fn bind_parameters<P>(&mut self, params: P) -> Result<()>
assert_eq!( where
params.len(), P: IntoIterator,
self.stmt.bind_parameter_count(), P::Item: ToSql,
"incorrect number of parameters to query(): expected {}, got {}", {
self.stmt.bind_parameter_count(), let expected = self.stmt.bind_parameter_count();
params.len() let mut index = 0;
); for p in params.into_iter() {
index += 1; // The leftmost SQL parameter has an index of 1.
for (i, p) in params.iter().enumerate() { if index > expected {
try!(self.bind_parameter(*p, i + 1)); break;
} }
try!(self.bind_parameter(&p, index));
}
assert_eq!(
index, expected,
"incorrect number of parameters: expected {}, got {}",
expected, index
);
Ok(()) Ok(())
} }
@ -643,7 +673,7 @@ impl<'conn> Statement<'conn> {
#[cfg(test)] #[cfg(test)]
mod test { mod test {
use {Connection, Error, Result}; use {Connection, Error, Result, NO_PARAMS};
#[test] #[test]
fn test_execute_named() { fn test_execute_named() {
@ -780,8 +810,9 @@ mod test {
stmt.execute_named(&[(":x", &"one")]).unwrap(); stmt.execute_named(&[(":x", &"one")]).unwrap();
let result: Option<String> = db let result: Option<String> = db
.query_row("SELECT y FROM test WHERE x = 'one'", &[], |row| row.get(0)) .query_row("SELECT y FROM test WHERE x = 'one'", NO_PARAMS, |row| {
.unwrap(); row.get(0)
}).unwrap();
assert!(result.is_none()); assert!(result.is_none());
} }
@ -798,8 +829,9 @@ mod test {
stmt.execute_named(&[(":y", &"two")]).unwrap(); stmt.execute_named(&[(":y", &"two")]).unwrap();
let result: String = db let result: String = db
.query_row("SELECT x FROM test WHERE y = 'two'", &[], |row| row.get(0)) .query_row("SELECT x FROM test WHERE y = 'two'", NO_PARAMS, |row| {
.unwrap(); row.get(0)
}).unwrap();
assert_eq!(result, "one"); assert_eq!(result, "one");
} }
@ -811,16 +843,16 @@ mod test {
let mut stmt = db let mut stmt = db
.prepare("INSERT OR IGNORE INTO foo (x) VALUES (?)") .prepare("INSERT OR IGNORE INTO foo (x) VALUES (?)")
.unwrap(); .unwrap();
assert_eq!(stmt.insert(&[&1i32]).unwrap(), 1); assert_eq!(stmt.insert(&[1i32]).unwrap(), 1);
assert_eq!(stmt.insert(&[&2i32]).unwrap(), 2); assert_eq!(stmt.insert(&[2i32]).unwrap(), 2);
match stmt.insert(&[&1i32]).unwrap_err() { match stmt.insert(&[1i32]).unwrap_err() {
Error::StatementChangedRows(0) => (), Error::StatementChangedRows(0) => (),
err => panic!("Unexpected error {}", err), err => panic!("Unexpected error {}", err),
} }
let mut multi = db let mut multi = db
.prepare("INSERT INTO foo (x) SELECT 3 UNION ALL SELECT 4") .prepare("INSERT INTO foo (x) SELECT 3 UNION ALL SELECT 4")
.unwrap(); .unwrap();
match multi.insert(&[]).unwrap_err() { match multi.insert(NO_PARAMS).unwrap_err() {
Error::StatementChangedRows(2) => (), Error::StatementChangedRows(2) => (),
err => panic!("Unexpected error {}", err), err => panic!("Unexpected error {}", err),
} }
@ -840,14 +872,14 @@ mod test {
assert_eq!( assert_eq!(
db.prepare("INSERT INTO foo VALUES (10)") db.prepare("INSERT INTO foo VALUES (10)")
.unwrap() .unwrap()
.insert(&[]) .insert(NO_PARAMS)
.unwrap(), .unwrap(),
1 1
); );
assert_eq!( assert_eq!(
db.prepare("INSERT INTO bar VALUES (10)") db.prepare("INSERT INTO bar VALUES (10)")
.unwrap() .unwrap()
.insert(&[]) .insert(NO_PARAMS)
.unwrap(), .unwrap(),
1 1
); );
@ -863,9 +895,9 @@ mod test {
END;"; END;";
db.execute_batch(sql).unwrap(); db.execute_batch(sql).unwrap();
let mut stmt = db.prepare("SELECT 1 FROM foo WHERE x = ?").unwrap(); let mut stmt = db.prepare("SELECT 1 FROM foo WHERE x = ?").unwrap();
assert!(stmt.exists(&[&1i32]).unwrap()); assert!(stmt.exists(&[1i32]).unwrap());
assert!(stmt.exists(&[&2i32]).unwrap()); assert!(stmt.exists(&[2i32]).unwrap());
assert!(!stmt.exists(&[&0i32]).unwrap()); assert!(!stmt.exists(&[0i32]).unwrap());
} }
#[test] #[test]
@ -878,7 +910,7 @@ mod test {
END;"; END;";
db.execute_batch(sql).unwrap(); db.execute_batch(sql).unwrap();
let mut stmt = db.prepare("SELECT y FROM foo WHERE x = ?").unwrap(); let mut stmt = db.prepare("SELECT y FROM foo WHERE x = ?").unwrap();
let y: Result<i64> = stmt.query_row(&[&1i32], |r| r.get(0)); let y: Result<i64> = stmt.query_row(&[1i32], |r| r.get(0));
assert_eq!(3i64, y.unwrap()); assert_eq!(3i64, y.unwrap());
} }
@ -891,7 +923,7 @@ mod test {
END;"; END;";
db.execute_batch(sql).unwrap(); db.execute_batch(sql).unwrap();
let mut stmt = db.prepare("SELECT y FROM foo").unwrap(); let mut stmt = db.prepare("SELECT y FROM foo").unwrap();
let y: Result<i64> = stmt.query_row(&[], |r| r.get("y")); let y: Result<i64> = stmt.query_row(NO_PARAMS, |r| r.get("y"));
assert_eq!(3i64, y.unwrap()); assert_eq!(3i64, y.unwrap());
} }
@ -904,7 +936,7 @@ mod test {
END;"; END;";
db.execute_batch(sql).unwrap(); db.execute_batch(sql).unwrap();
let mut stmt = db.prepare("SELECT y as Y FROM foo").unwrap(); let mut stmt = db.prepare("SELECT y as Y FROM foo").unwrap();
let y: Result<i64> = stmt.query_row(&[], |r| r.get("y")); let y: Result<i64> = stmt.query_row(NO_PARAMS, |r| r.get("y"));
assert_eq!(3i64, y.unwrap()); assert_eq!(3i64, y.unwrap());
} }

8
src/trace.rs
View File

@ -139,13 +139,13 @@ mod test {
let mut db = Connection::open_in_memory().unwrap(); let mut db = Connection::open_in_memory().unwrap();
db.trace(Some(tracer)); db.trace(Some(tracer));
{ {
let _ = db.query_row("SELECT ?", &[&1i32], |_| {}); let _ = db.query_row("SELECT ?", &[1i32], |_| {});
let _ = db.query_row("SELECT ?", &[&"hello"], |_| {}); let _ = db.query_row("SELECT ?", &["hello"], |_| {});
} }
db.trace(None); db.trace(None);
{ {
let _ = db.query_row("SELECT ?", &[&2i32], |_| {}); let _ = db.query_row("SELECT ?", &[2i32], |_| {});
let _ = db.query_row("SELECT ?", &[&"goodbye"], |_| {}); let _ = db.query_row("SELECT ?", &["goodbye"], |_| {});
} }
let traced_stmts = TRACED_STMTS.lock().unwrap(); let traced_stmts = TRACED_STMTS.lock().unwrap();

10
src/transaction.rs
View File

@ -419,7 +419,7 @@ impl Connection {
#[cfg(test)] #[cfg(test)]
mod test { mod test {
use super::DropBehavior; use super::DropBehavior;
use Connection; use {Connection, NO_PARAMS};
fn checked_memory_handle() -> Connection { fn checked_memory_handle() -> Connection {
let db = Connection::open_in_memory().unwrap(); let db = Connection::open_in_memory().unwrap();
@ -444,7 +444,7 @@ mod test {
let tx = db.transaction().unwrap(); let tx = db.transaction().unwrap();
assert_eq!( assert_eq!(
2i32, 2i32,
tx.query_row::<i32, _>("SELECT SUM(x) FROM foo", &[], |r| r.get(0)) tx.query_row::<i32, _, _>("SELECT SUM(x) FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap() .unwrap()
); );
} }
@ -473,7 +473,7 @@ mod test {
let tx = db.transaction().unwrap(); let tx = db.transaction().unwrap();
assert_eq!( assert_eq!(
6i32, 6i32,
tx.query_row::<i32, _>("SELECT SUM(x) FROM foo", &[], |r| r.get(0)) tx.query_row::<i32, _, _>("SELECT SUM(x) FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap() .unwrap()
); );
} }
@ -565,12 +565,12 @@ mod test {
} }
fn insert(x: i32, conn: &Connection) { fn insert(x: i32, conn: &Connection) {
conn.execute("INSERT INTO foo VALUES(?)", &[&x]).unwrap(); conn.execute("INSERT INTO foo VALUES(?)", &[x]).unwrap();
} }
fn assert_current_sum(x: i32, conn: &Connection) { fn assert_current_sum(x: i32, conn: &Connection) {
let i = conn let i = conn
.query_row::<i32, _>("SELECT SUM(x) FROM foo", &[], |r| r.get(0)) .query_row::<i32, _, _>("SELECT SUM(x) FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(x, i); assert_eq!(x, i);
} }

36
src/types/chrono.rs
View File

@ -132,7 +132,7 @@ mod test {
use super::chrono::{ use super::chrono::{
DateTime, Duration, Local, NaiveDate, NaiveDateTime, NaiveTime, TimeZone, Utc, DateTime, Duration, Local, NaiveDate, NaiveDateTime, NaiveTime, TimeZone, Utc,
}; };
use Connection; use {Connection, NO_PARAMS};
fn checked_memory_handle() -> Connection { fn checked_memory_handle() -> Connection {
let db = Connection::open_in_memory().unwrap(); let db = Connection::open_in_memory().unwrap();
@ -149,11 +149,11 @@ mod test {
.unwrap(); .unwrap();
let s: String = db let s: String = db
.query_row("SELECT t FROM foo", &[], |r| r.get(0)) .query_row("SELECT t FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!("2016-02-23", s); assert_eq!("2016-02-23", s);
let t: NaiveDate = db let t: NaiveDate = db
.query_row("SELECT t FROM foo", &[], |r| r.get(0)) .query_row("SELECT t FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(date, t); assert_eq!(date, t);
} }
@ -166,11 +166,11 @@ mod test {
.unwrap(); .unwrap();
let s: String = db let s: String = db
.query_row("SELECT t FROM foo", &[], |r| r.get(0)) .query_row("SELECT t FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!("23:56:04", s); assert_eq!("23:56:04", s);
let v: NaiveTime = db let v: NaiveTime = db
.query_row("SELECT t FROM foo", &[], |r| r.get(0)) .query_row("SELECT t FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(time, v); assert_eq!(time, v);
} }
@ -186,17 +186,18 @@ mod test {
.unwrap(); .unwrap();
let s: String = db let s: String = db
.query_row("SELECT t FROM foo", &[], |r| r.get(0)) .query_row("SELECT t FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!("2016-02-23T23:56:04", s); assert_eq!("2016-02-23T23:56:04", s);
let v: NaiveDateTime = db let v: NaiveDateTime = db
.query_row("SELECT t FROM foo", &[], |r| r.get(0)) .query_row("SELECT t FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(dt, v); assert_eq!(dt, v);
db.execute("UPDATE foo set b = datetime(t)", &[]).unwrap(); // "YYYY-MM-DD HH:MM:SS" db.execute("UPDATE foo set b = datetime(t)", NO_PARAMS)
.unwrap(); // "YYYY-MM-DD HH:MM:SS"
let hms: NaiveDateTime = db let hms: NaiveDateTime = db
.query_row("SELECT b FROM foo", &[], |r| r.get(0)) .query_row("SELECT b FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(dt, hms); assert_eq!(dt, hms);
} }
@ -213,28 +214,29 @@ mod test {
.unwrap(); .unwrap();
let s: String = db let s: String = db
.query_row("SELECT t FROM foo", &[], |r| r.get(0)) .query_row("SELECT t FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!("2016-02-23T23:56:04.789+00:00", s); assert_eq!("2016-02-23T23:56:04.789+00:00", s);
let v1: DateTime<Utc> = db let v1: DateTime<Utc> = db
.query_row("SELECT t FROM foo", &[], |r| r.get(0)) .query_row("SELECT t FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(utc, v1); assert_eq!(utc, v1);
let v2: DateTime<Utc> = db let v2: DateTime<Utc> = db
.query_row("SELECT '2016-02-23 23:56:04.789'", &[], |r| r.get(0)) .query_row("SELECT '2016-02-23 23:56:04.789'", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(utc, v2); assert_eq!(utc, v2);
let v3: DateTime<Utc> = db let v3: DateTime<Utc> = db
.query_row("SELECT '2016-02-23 23:56:04'", &[], |r| r.get(0)) .query_row("SELECT '2016-02-23 23:56:04'", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(utc - Duration::milliseconds(789), v3); assert_eq!(utc - Duration::milliseconds(789), v3);
let v4: DateTime<Utc> = db let v4: DateTime<Utc> = db
.query_row("SELECT '2016-02-23 23:56:04.789+00:00'", &[], |r| r.get(0)) .query_row("SELECT '2016-02-23 23:56:04.789+00:00'", NO_PARAMS, |r| {
.unwrap(); r.get(0)
}).unwrap();
assert_eq!(utc, v4); assert_eq!(utc, v4);
} }
@ -251,12 +253,12 @@ mod test {
// Stored string should be in UTC // Stored string should be in UTC
let s: String = db let s: String = db
.query_row("SELECT t FROM foo", &[], |r| r.get(0)) .query_row("SELECT t FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert!(s.ends_with("+00:00")); assert!(s.ends_with("+00:00"));
let v: DateTime<Local> = db let v: DateTime<Local> = db
.query_row("SELECT t FROM foo", &[], |r| r.get(0)) .query_row("SELECT t FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(local, v); assert_eq!(local, v);
} }

29
src/types/mod.rs
View File

@ -81,7 +81,7 @@ mod value_ref;
/// # use rusqlite::types::{Null}; /// # use rusqlite::types::{Null};
/// fn main() {} /// fn main() {}
/// fn insert_null(conn: &Connection) -> Result<usize> { /// fn insert_null(conn: &Connection) -> Result<usize> {
/// conn.execute("INSERT INTO people (name) VALUES (?)", &[&Null]) /// conn.execute("INSERT INTO people (name) VALUES (?)", &[Null])
/// } /// }
/// ``` /// ```
#[derive(Copy, Clone)] #[derive(Copy, Clone)]
@ -115,8 +115,7 @@ mod test {
use super::Value; use super::Value;
use std::f64::EPSILON; use std::f64::EPSILON;
use std::os::raw::{c_double, c_int}; use std::os::raw::{c_double, c_int};
use Connection; use {Connection, Error, NO_PARAMS};
use Error;
fn checked_memory_handle() -> Connection { fn checked_memory_handle() -> Connection {
let db = Connection::open_in_memory().unwrap(); let db = Connection::open_in_memory().unwrap();
@ -134,7 +133,7 @@ mod test {
.unwrap(); .unwrap();
let v: Vec<u8> = db let v: Vec<u8> = db
.query_row("SELECT b FROM foo", &[], |r| r.get(0)) .query_row("SELECT b FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(v, v1234); assert_eq!(v, v1234);
} }
@ -148,7 +147,7 @@ mod test {
.unwrap(); .unwrap();
let v: Vec<u8> = db let v: Vec<u8> = db
.query_row("SELECT b FROM foo", &[], |r| r.get(0)) .query_row("SELECT b FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(v, empty); assert_eq!(v, empty);
} }
@ -161,7 +160,7 @@ mod test {
db.execute("INSERT INTO foo(t) VALUES (?)", &[&s]).unwrap(); db.execute("INSERT INTO foo(t) VALUES (?)", &[&s]).unwrap();
let from: String = db let from: String = db
.query_row("SELECT t FROM foo", &[], |r| r.get(0)) .query_row("SELECT t FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(from, s); assert_eq!(from, s);
} }
@ -171,11 +170,11 @@ mod test {
let db = checked_memory_handle(); let db = checked_memory_handle();
let s = "hello, world!"; let s = "hello, world!";
db.execute("INSERT INTO foo(t) VALUES (?)", &[&s.to_owned()]) db.execute("INSERT INTO foo(t) VALUES (?)", &[s.to_owned()])
.unwrap(); .unwrap();
let from: String = db let from: String = db
.query_row("SELECT t FROM foo", &[], |r| r.get(0)) .query_row("SELECT t FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(from, s); assert_eq!(from, s);
} }
@ -184,12 +183,12 @@ mod test {
fn test_value() { fn test_value() {
let db = checked_memory_handle(); let db = checked_memory_handle();
db.execute("INSERT INTO foo(i) VALUES (?)", &[&Value::Integer(10)]) db.execute("INSERT INTO foo(i) VALUES (?)", &[Value::Integer(10)])
.unwrap(); .unwrap();
assert_eq!( assert_eq!(
10i64, 10i64,
db.query_row::<i64, _>("SELECT i FROM foo", &[], |r| r.get(0)) db.query_row::<i64, _, _>("SELECT i FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap() .unwrap()
); );
} }
@ -207,7 +206,7 @@ mod test {
let mut stmt = db let mut stmt = db
.prepare("SELECT t, b FROM foo ORDER BY ROWID ASC") .prepare("SELECT t, b FROM foo ORDER BY ROWID ASC")
.unwrap(); .unwrap();
let mut rows = stmt.query(&[]).unwrap(); let mut rows = stmt.query(NO_PARAMS).unwrap();
{ {
let row1 = rows.next().unwrap().unwrap(); let row1 = rows.next().unwrap().unwrap();
@ -239,11 +238,11 @@ mod test {
db.execute( db.execute(
"INSERT INTO foo(b, t, i, f) VALUES (X'0102', 'text', 1, 1.5)", "INSERT INTO foo(b, t, i, f) VALUES (X'0102', 'text', 1, 1.5)",
&[], NO_PARAMS,
).unwrap(); ).unwrap();
let mut stmt = db.prepare("SELECT b, t, i, f, n FROM foo").unwrap(); let mut stmt = db.prepare("SELECT b, t, i, f, n FROM foo").unwrap();
let mut rows = stmt.query(&[]).unwrap(); let mut rows = stmt.query(NO_PARAMS).unwrap();
let row = rows.next().unwrap().unwrap(); let row = rows.next().unwrap().unwrap();
@ -354,11 +353,11 @@ mod test {
db.execute( db.execute(
"INSERT INTO foo(b, t, i, f) VALUES (X'0102', 'text', 1, 1.5)", "INSERT INTO foo(b, t, i, f) VALUES (X'0102', 'text', 1, 1.5)",
&[], NO_PARAMS,
).unwrap(); ).unwrap();
let mut stmt = db.prepare("SELECT b, t, i, f, n FROM foo").unwrap(); let mut stmt = db.prepare("SELECT b, t, i, f, n FROM foo").unwrap();
let mut rows = stmt.query(&[]).unwrap(); let mut rows = stmt.query(NO_PARAMS).unwrap();
let row = rows.next().unwrap().unwrap(); let row = rows.next().unwrap().unwrap();
assert_eq!( assert_eq!(

9
src/types/serde_json.rs
View File

@ -27,7 +27,8 @@ impl FromSql for Value {
#[cfg(test)] #[cfg(test)]
mod test { mod test {
use super::serde_json; use super::serde_json;
use Connection; use types::ToSql;
use {Connection, NO_PARAMS};
fn checked_memory_handle() -> Connection { fn checked_memory_handle() -> Connection {
let db = Connection::open_in_memory().unwrap(); let db = Connection::open_in_memory().unwrap();
@ -44,15 +45,15 @@ mod test {
let data: serde_json::Value = serde_json::from_str(json).unwrap(); let data: serde_json::Value = serde_json::from_str(json).unwrap();
db.execute( db.execute(
"INSERT INTO foo (t, b) VALUES (?, ?)", "INSERT INTO foo (t, b) VALUES (?, ?)",
&[&data, &json.as_bytes()], &[&data as &ToSql, &json.as_bytes()],
).unwrap(); ).unwrap();
let t: serde_json::Value = db let t: serde_json::Value = db
.query_row("SELECT t FROM foo", &[], |r| r.get(0)) .query_row("SELECT t FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(data, t); assert_eq!(data, t);
let b: serde_json::Value = db let b: serde_json::Value = db
.query_row("SELECT b FROM foo", &[], |r| r.get(0)) .query_row("SELECT b FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
assert_eq!(data, b); assert_eq!(data, b);
} }

6
src/types/time.rs
View File

@ -32,7 +32,7 @@ impl FromSql for time::Timespec {
#[cfg(test)] #[cfg(test)]
mod test { mod test {
use super::time; use super::time;
use Connection; use {Connection, NO_PARAMS};
fn checked_memory_handle() -> Connection { fn checked_memory_handle() -> Connection {
let db = Connection::open_in_memory().unwrap(); let db = Connection::open_in_memory().unwrap();
@ -58,10 +58,10 @@ mod test {
db.execute("INSERT INTO foo(t) VALUES (?)", &[&ts]).unwrap(); db.execute("INSERT INTO foo(t) VALUES (?)", &[&ts]).unwrap();
let from: time::Timespec = db let from: time::Timespec = db
.query_row("SELECT t FROM foo", &[], |r| r.get(0)) .query_row("SELECT t FROM foo", NO_PARAMS, |r| r.get(0))
.unwrap(); .unwrap();
db.execute("DELETE FROM foo", &[]).unwrap(); db.execute("DELETE FROM foo", NO_PARAMS).unwrap();
assert_eq!(from, ts); assert_eq!(from, ts);
} }

4
src/types/to_sql.rs
View File

@ -114,10 +114,10 @@ to_sql_self!(f64);
impl<'a, T: ?Sized> ToSql for &'a T impl<'a, T: ?Sized> ToSql for &'a T
where where
&'a T: Into<ToSqlOutput<'a>>, T: ToSql,
{ {
fn to_sql(&self) -> Result<ToSqlOutput> { fn to_sql(&self) -> Result<ToSqlOutput> {
Ok((*self).into()) (*self).to_sql()
} }
} }

4
src/unlock_notify.rs
View File

@ -102,7 +102,7 @@ mod test {
use std::sync::mpsc::sync_channel; use std::sync::mpsc::sync_channel;
use std::thread; use std::thread;
use std::time; use std::time;
use {Connection, OpenFlags, Result, Transaction, TransactionBehavior}; use {Connection, OpenFlags, Result, Transaction, TransactionBehavior, NO_PARAMS};
#[test] #[test]
fn test_unlock_notify() { fn test_unlock_notify() {
@ -121,7 +121,7 @@ mod test {
tx2.commit().unwrap(); tx2.commit().unwrap();
}); });
assert_eq!(tx.recv().unwrap(), 1); assert_eq!(tx.recv().unwrap(), 1);
let the_answer: Result<i64> = db1.query_row("SELECT x FROM foo", &[], |r| r.get(0)); let the_answer: Result<i64> = db1.query_row("SELECT x FROM foo", NO_PARAMS, |r| r.get(0));
assert_eq!(42i64, the_answer.unwrap()); assert_eq!(42i64, the_answer.unwrap());
child.join().unwrap(); child.join().unwrap();
} }

6
src/vtab/csvtab.rs
View File

@ -341,7 +341,7 @@ impl From<csv::Error> for Error {
#[cfg(test)] #[cfg(test)]
mod test { mod test {
use vtab::csvtab; use vtab::csvtab;
use {Connection, Result}; use {Connection, Result, NO_PARAMS};
#[test] #[test]
fn test_csv_module() { fn test_csv_module() {
@ -358,7 +358,7 @@ mod test {
} }
let ids: Result<Vec<i32>> = s let ids: Result<Vec<i32>> = s
.query_map(&[], |row| row.get::<_, i32>(0)) .query_map(NO_PARAMS, |row| row.get::<_, i32>(0))
.unwrap() .unwrap()
.collect(); .collect();
let sum = ids.unwrap().iter().fold(0, |acc, &id| acc + id); let sum = ids.unwrap().iter().fold(0, |acc, &id| acc + id);
@ -381,7 +381,7 @@ mod test {
v1.rowid < v2.rowid", v1.rowid < v2.rowid",
).unwrap(); ).unwrap();
let mut rows = s.query(&[]).unwrap(); let mut rows = s.query(NO_PARAMS).unwrap();
let row = rows.next().unwrap().unwrap(); let row = rows.next().unwrap().unwrap();
assert_eq!(row.get::<_, i32>(0), 2); assert_eq!(row.get::<_, i32>(0), 2);
} }

4
src/vtab/series.rs
View File

@ -265,7 +265,7 @@ impl VTabCursor for SeriesTabCursor {
mod test { mod test {
use ffi; use ffi;
use vtab::series; use vtab::series;
use Connection; use {Connection, NO_PARAMS};
#[test] #[test]
fn test_series_module() { fn test_series_module() {
@ -279,7 +279,7 @@ mod test {
let mut s = db.prepare("SELECT * FROM generate_series(0,20,5)").unwrap(); let mut s = db.prepare("SELECT * FROM generate_series(0,20,5)").unwrap();
let series = s.query_map(&[], |row| row.get::<_, i32>(0)).unwrap(); let series = s.query_map(NO_PARAMS, |row| row.get::<_, i32>(0)).unwrap();
let mut expected = 0; let mut expected = 0;
for value in series { for value in series {

5
tests/vtab.rs
View File

@ -6,6 +6,7 @@ extern crate rusqlite;
#[cfg(feature = "vtab")] #[cfg(feature = "vtab")]
#[test] #[test]
fn test_dummy_module() { fn test_dummy_module() {
use rusqlite::types::ToSql;
use rusqlite::vtab::{ use rusqlite::vtab::{
eponymous_only_module, sqlite3_vtab, sqlite3_vtab_cursor, Context, IndexInfo, VTab, eponymous_only_module, sqlite3_vtab, sqlite3_vtab_cursor, Context, IndexInfo, VTab,
VTabConnection, VTabCursor, Values, VTabConnection, VTabCursor, Values,
@ -96,6 +97,8 @@ fn test_dummy_module() {
let mut s = db.prepare("SELECT * FROM dummy()").unwrap(); let mut s = db.prepare("SELECT * FROM dummy()").unwrap();
let dummy = s.query_row(&[], |row| row.get::<_, i32>(0)).unwrap(); let dummy = s
.query_row(&[] as &[&ToSql], |row| row.get::<_, i32>(0))
.unwrap();
assert_eq!(1, dummy); assert_eq!(1, dummy);
} }