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Change query_row to unwrap the SqliteResult

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This commit is contained in:
John Gallagher 2014-10-28 15:14:52 -04:00
parent 68e9d81283
commit 949260046c
3 changed files with 11 additions and 10 deletions
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9
src/lib.rs
View File

@ -85,9 +85,10 @@ impl SqliteConnection {
self.db.borrow_mut().last_insert_rowid() self.db.borrow_mut().last_insert_rowid()
} }
pub fn query_row<T>(&self, sql: &str, params: &[&ToSql], pub fn query_row<T>(&self, sql: &str, params: &[&ToSql], f: |SqliteRow| -> T) -> T {
f: |SqliteResult<SqliteRow>| -> T) -> T { let mut stmt = self.prepare(sql).unwrap();
f(self.prepare(sql).unwrap().query(params).unwrap().next().unwrap()) let mut rows = stmt.query(params).unwrap();
f(rows.next().expect("Query did not return a row").unwrap())
} }
pub fn prepare<'a>(&'a self, sql: &str) -> SqliteResult<SqliteStatement<'a>> { pub fn prepare<'a>(&'a self, sql: &str) -> SqliteResult<SqliteStatement<'a>> {
@ -409,7 +410,7 @@ mod test {
assert_eq!(db.execute("INSERT INTO foo(x) VALUES (?)", &[&1i32]).unwrap(), 1); assert_eq!(db.execute("INSERT INTO foo(x) VALUES (?)", &[&1i32]).unwrap(), 1);
assert_eq!(db.execute("INSERT INTO foo(x) VALUES (?)", &[&2i32]).unwrap(), 1); assert_eq!(db.execute("INSERT INTO foo(x) VALUES (?)", &[&2i32]).unwrap(), 1);
assert_eq!(3i32, db.query_row("SELECT SUM(x) FROM foo", [], |r| r.unwrap().get(0))); assert_eq!(3i32, db.query_row("SELECT SUM(x) FROM foo", [], |r| r.get(0)));
} }
#[test] #[test]

6
src/transaction.rs
View File

@ -115,7 +115,7 @@ mod test {
} }
{ {
let _tx = db.transaction().unwrap(); let _tx = db.transaction().unwrap();
assert_eq!(2i32, db.query_row("SELECT SUM(x) FROM foo", [], |r| r.unwrap().get(0))); assert_eq!(2i32, db.query_row("SELECT SUM(x) FROM foo", [], |r| r.get(0)));
} }
} }
@ -134,7 +134,7 @@ mod test {
} }
{ {
let _tx = db.transaction().unwrap(); let _tx = db.transaction().unwrap();
assert_eq!(2i32, db.query_row("SELECT SUM(x) FROM foo", [], |r| r.unwrap().get(0))); assert_eq!(2i32, db.query_row("SELECT SUM(x) FROM foo", [], |r| r.get(0)));
} }
} }
@ -162,7 +162,7 @@ mod test {
} }
} }
} }
assert_eq!(3i32, db.query_row("SELECT SUM(x) FROM foo", [], |r| r.unwrap().get(0))); assert_eq!(3i32, db.query_row("SELECT SUM(x) FROM foo", [], |r| r.get(0)));
} }
#[bench] #[bench]

6
src/types.rs
View File

@ -165,7 +165,7 @@ mod test {
let v1234 = vec![1u8,2,3,4]; let v1234 = vec![1u8,2,3,4];
db.execute("INSERT INTO foo(b) VALUES (?)", &[&v1234]).unwrap(); db.execute("INSERT INTO foo(b) VALUES (?)", &[&v1234]).unwrap();
let v: Vec<u8> = db.query_row("SELECT b FROM foo", [], |r| r.unwrap().get(0)); let v: Vec<u8> = db.query_row("SELECT b FROM foo", [], |r| r.get(0));
assert_eq!(v, v1234); assert_eq!(v, v1234);
} }
@ -176,7 +176,7 @@ mod test {
let s = "hello, world!"; let s = "hello, world!";
db.execute("INSERT INTO foo(t) VALUES (?)", &[&s.to_string()]).unwrap(); db.execute("INSERT INTO foo(t) VALUES (?)", &[&s.to_string()]).unwrap();
let from: String = db.query_row("SELECT t FROM foo", [], |r| r.unwrap().get(0)); let from: String = db.query_row("SELECT t FROM foo", [], |r| r.get(0));
assert_eq!(from.as_slice(), s); assert_eq!(from.as_slice(), s);
} }
@ -187,7 +187,7 @@ mod test {
let ts = time::Timespec{sec: 10_000, nsec: 0 }; let ts = time::Timespec{sec: 10_000, nsec: 0 };
db.execute("INSERT INTO foo(t) VALUES (?)", &[&ts]).unwrap(); db.execute("INSERT INTO foo(t) VALUES (?)", &[&ts]).unwrap();
let from: time::Timespec = db.query_row("SELECT t FROM foo", [], |r| r.unwrap().get(0)); let from: time::Timespec = db.query_row("SELECT t FROM foo", [], |r| r.get(0));
assert_eq!(from, ts); assert_eq!(from, ts);
} }