Struct mysql::LocalInfileHandler
source · pub struct LocalInfileHandler(_);
Expand description
Callback to handle requests for local files. Consult Mysql documentation for the format of local infile data.
Support
Note that older versions of Mysql server may not support this functionality.
conn.query("CREATE TEMPORARY TABLE mysql.tbl(a TEXT)").unwrap();
conn.set_local_infile_handler(Some(
LocalInfileHandler::new(|file_name, writer| {
writer.write_all(b"row1: file name is ")?;
writer.write_all(file_name)?;
writer.write_all(b"\n")?;
writer.write_all(b"row2: foobar\n")
})
));
match conn.query("LOAD DATA LOCAL INFILE 'file_name' INTO TABLE mysql.tbl") {
Ok(_) => (),
Err(Error::MySqlError(ref e)) if e.code == 1148 => {
// functionality is not supported by the server
return;
},
err => {
err.unwrap();
},
}
let mut row_num = 0;
for (row_idx, row) in conn.query("SELECT * FROM mysql.tbl").unwrap().enumerate() {
row_num = row_idx + 1;
let row: (String,) = from_row(row.unwrap());
match row_num {
1 => assert_eq!(row.0, "row1: file name is file_name"),
2 => assert_eq!(row.0, "row2: foobar"),
_ => unreachable!(),
}
}
assert_eq!(row_num, 2);
Implementations§
Trait Implementations§
source§impl Clone for LocalInfileHandler
impl Clone for LocalInfileHandler
source§fn clone(&self) -> LocalInfileHandler
fn clone(&self) -> LocalInfileHandler
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read more