Struct ResultRow

pub struct ResultRow<'res: 'row, 'row> { /* private fields */ }

Access to columns of a row.

Implementations

impl<'res, 'row> ResultRow<'res, 'row>

Access to one row (step) of a result.

Note “These routines attempt to convert the value where appropriate.”1 and “The value returned by sqlite3_column_type() is only meaningful if no type conversions have occurred as described below. After a type conversion, the value returned by sqlite3_column_type() is undefined.”1

pub fn column_count(&self) -> ColIx

cf sqlite3_column_count

TODO: consider returning Option “This routine returns 0 if pStmt is an SQL statement that does not return data (for example an UPDATE).”

pub fn with_column_name<T, F: Fn(&str) -> T>( &mut self, i: ColIx, default: T, f: F, ) -> T

Look up a column name and compute some function of it.

Return default if there is no column i

cf sqlite_column_name

pub fn column_type(&self, col: ColIx) -> ColumnType

Look up the type of a column.

Return SQLITE_NULL if there is no such col.

pub fn column_int(&self, col: ColIx) -> i32

Get int value of a column.

pub fn column_int64(&self, col: ColIx) -> i64

Get int64 value of a column.

pub fn column_double(&self, col: ColIx) -> f64

Get f64 (aka double) value of a column.

pub fn column_text(&self, col: ColIx) -> Option<String>

Get Option<String> (aka text) value of a column.

pub fn column_str<'a>(&'a self, col: ColIx) -> Option<&'a str>

Get Option<&str> (aka text) value of a column.

pub fn column_blob(&self, col: ColIx) -> Option<Vec<u8>>

Get Option<Vec<u8>> (aka blob) value of a column.

pub fn column_slice<'a>(&'a self, col: ColIx) -> Option<&'a [u8]>

Get Option<&[u8]> (aka blob) value of a column.

Trait Implementations

impl<'res, 'row> ResultRowAccess for ResultRow<'res, 'row>

fn get<I: RowIndex + Display + Clone, T: FromSql>(&mut self, idx: I) -> T

Get T type result value from idxth column of a row.

fn get_opt<I: RowIndex + Display + Clone, T: FromSql>( &mut self, idx: I, ) -> SqliteResult<T>

Try to get T type result value from idxth column of a row.