Struct Rows 

pub struct Rows<'c, 's, C: ColumnIndexes, S = Binding<'c, 's>>
where
    S: Execute<'c, 's>,
    'c: 's,
{ /* private fields */ }

Access the Columns of each row returned by a query.

Implementations

impl<'c, 's, 'r, C, S> Rows<'c, 's, C, S>

where C: Columns<'r>, S: Execute<'c, 's>, 'c: 's, 's: 'r,

pub fn next(&'r mut self) -> Result<Option<C>>

Fetch the next row.

If fetching fails, returns an error. If no more rows are available, returns Ok(None). Otherwise, returns Ok(Some(C)).

pub fn map<F, T: 's>(self, f: F) -> Map<'c, 's, C, F, S>

where F: FnMut(C) -> T,

Call a closure to transform each row in the result set.

Like Iterator::map, but can map over Columns which borrow data from the SQLite row. The returned T must not borrow from the row.

pub fn filter_map<F, T: 's>(self, f: F) -> FilterMap<'c, 's, C, F, S>

where F: FnMut(C) -> Option<T>,

Call a closure to transform each row in the result set into an Option, and filter out any rows where the closure returned None.

Like Iterator::filter_map, but can map over Columns which borrow data from the SQLite row. The returned T must not borrow from the row.

Trait Implementations

impl<'c, 's, C: Debug + ColumnIndexes, S> Debug for Rows<'c, 's, C, S>

where S: Execute<'c, 's> + Debug, C::Indexes: Debug, 'c: 's,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'c, 's, C, S> IntoIterator for Rows<'c, 's, C, S>

where C: for<'r> Columns<'r> + 'static, S: Execute<'c, 's>, 'c: 's,

type Item = Result<C, Error>

The type of the elements being iterated over.

type IntoIter = RowsIterator<'c, 's, C, S>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.