Struct pg_async::PgRow

pub struct PgRow<'a>(_, _);

Implementations

impl<'a> PgRow<'a>

pub fn is_null(&self, column: u32) -> bool

True if the value is NULL.

• column - The number of the column which value is to be tested with PQgetisnull. 0-based.

pub fn ftype(&self, column: u32) -> Oid

PostgreSQL internal OID number of the column type.

• column - The number of the column which type is to be retrieved with PQftype. 0-based.

pub fn fname(&'a self, column: u32) -> Result<&'a str, Utf8Error>

Returns the column name associated with the given column number. Column numbers start at 0.

• column - The number of the column. 0-based.

pub fn num(&self) -> u32

Return this row’s number withing the result.

pub fn len(&self) -> u32

Returns the number of columns in the row. Row numbers start at 0.

pub fn col(&self, column: u32) -> &'a [u8]

Get the byte slice of a value in the given column.

Returns an empty array if the value is NULL.

• column - The column number. 0-based.

pub fn col_str(&self, column: u32) -> Result<&'a str, Utf8Error>

Tries to get an UTF-8 slice of a value in the given column.

Returns an empty string if the value is NULL.

• column - The column number. 0-based.

pub fn bytea(&self, column: u32) -> Vec<u8>

Binary data unescaped from a bytea column.

• column - The column number. 0-based.

pub fn col_json(&self, column: u32, name: &str) -> Result<Json, PgFutureErr>

Converts the column into JSON.

• column - The number of the column which value is to be converted to JSON. 0-based.
• name - The name of the column. To make the errors more verbose if they’d happen.

pub fn col_deserialize<T: DeserializeOwned>(
    &self,
    column: u32,
    name: &str
) -> Result<T, PgFutureErr>

Auto-unpack the column value.

pub fn to_json(&self) -> Result<Json, PgFutureErr>

Converts the row into JSON, {$name: $value, …}.