[−][src]Trait rsfbclient::Queryable

pub trait Queryable<'a, R> where
    R: FromRow + 'a, {
    type Iter: Iterator<Item = Result<R, FbError>> + 'a;
    fn query_iter<P>(
        &'a mut self, 
        sql: &str, 
        params: P
    ) -> Result<Self::Iter, FbError>
    where
        P: IntoParams;

    fn query<P>(&'a mut self, sql: &str, params: P) -> Result<Vec<R>, FbError>
    where
        P: IntoParams,
    { ... }

    fn query_first<P>(
        &'a mut self, 
        sql: &str, 
        params: P
    ) -> Result<Option<R>, FbError>
    where
        P: IntoParams,
    { ... }
}

Implemented for types that can be used to execute sql queries

Associated Types

type Iter: Iterator<Item = Result<R, FbError>> + 'a

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Required methods

fn query_iter<P>(
    &'a mut self,
    sql: &str,
    params: P
) -> Result<Self::Iter, FbError> where
    P: IntoParams, 

Returns the results of the query as an iterator

Use () for no parameters or a tuple of parameters

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Provided methods

fn query<P>(&'a mut self, sql: &str, params: P) -> Result<Vec<R>, FbError> where
    P: IntoParams, 

Returns the results of the query as a Vec

Use () for no parameters or a tuple of parameters

fn query_first<P>(
    &'a mut self,
    sql: &str,
    params: P
) -> Result<Option<R>, FbError> where
    P: IntoParams, 

Returns the first result of the query, or None

Use () for no parameters or a tuple of parameters

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Implementors

impl<'a, R, C> Queryable<'a, R> for Connection<C> where
    R: FromRow + 'a,
    C: FirebirdClient + 'a, [src]

type Iter = StmtIter<'a, R, C>

fn query_iter<P>(
    &'a mut self,
    sql: &str,
    params: P
) -> Result<Self::Iter, FbError> where
    P: IntoParams, [src]

Prepare, execute, return the rows and commit the sql query

Use () for no parameters or a tuple of parameters

impl<'a, R, C> Queryable<'a, R> for Transaction<'a, C> where
    R: FromRow + 'a,
    C: FirebirdClient, [src]

type Iter = StmtIter<'a, R, C>

fn query_iter<P>(
    &'a mut self,
    sql: &str,
    params: P
) -> Result<Self::Iter, FbError> where
    P: IntoParams, [src]

Prepare, execute and return the rows of the sql query

Use () for no parameters or a tuple of parameters

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