Enum quaint::ast::ParameterizedValue

pub enum ParameterizedValue<'a> {
    Null,
    Integer(i64),
    Real(Decimal),
    Text(Cow<'a, str>),
    Boolean(bool),
    Char(char),
    Array(Vec<ParameterizedValue<'a>>),
    Json(Value),
    Uuid(Uuid),
    DateTime(DateTime<Utc>),
}

A value we must parameterize for the prepared statement.

Variants

Null

Integer(i64)

Real(Decimal)

Text(Cow<'a, str>)

Boolean(bool)

Char(char)

Array(Vec<ParameterizedValue<'a>>)

Json(Value)

Uuid(Uuid)

DateTime(DateTime<Utc>)

Methods

impl<'a> ParameterizedValue<'a>

pub fn is_null(&self) -> bool

true if the ParameterizedValue is null.

pub fn is_text(&self) -> bool

true if the ParameterizedValue is text.

pub fn as_str(&self) -> Option<&str>

Returns a &str if the value is text, otherwise None.

pub fn as_char(&self) -> Option<char>

Returns a char if the value is a char, otherwise None.

pub fn to_string(&self) -> Option<String>

Returns a cloned String if the value is text, otherwise None.

pub fn into_string(self) -> Option<String>

Transforms the ParameterizedValue to a String if it's text, otherwise None.

pub fn is_integer(&self) -> bool

true if the ParameterizedValue is an integer.

pub fn as_i64(&self) -> Option<i64>

Returns an i64 if the value is an integer, otherwise None.

pub fn is_real(&self) -> bool

true if the ParameterizedValue is a real value.

pub fn as_f64(&self) -> Option<f64>

Returns a f64 if the value is a real value and the underlying decimal can be converted, otherwise None.

pub fn as_decimal(&self) -> Option<Decimal>

Returns a decimal if the value is a real value, otherwise None.

pub fn is_bool(&self) -> bool

true if the ParameterizedValue is a boolean value.

pub fn as_bool(&self) -> Option<bool>

Returns a bool if the value is a boolean, otherwise None.

pub fn is_uuid(&self) -> bool

true if the ParameterizedValue is of UUID type.

pub fn as_uuid(&self) -> Option<Uuid>

Returns an UUID if the value is of UUID type, otherwise None.

pub fn is_datetime(&self) -> bool

true if the ParameterizedValue is a DateTime.

pub fn as_datetime(&self) -> Option<DateTime<Utc>>

Returns a DateTime if the value is a DateTime, otherwise None.

pub fn is_json(&self) -> bool

true if the ParameterizedValue is a JSON value.

pub fn as_json(&self) -> Option<&Value>

Returns a reference to a JSON Value if of Json type, otherwise None.

pub fn into_json(self) -> Option<Value>

Transforms to a JSON Value if of Json type, otherwise None.

pub fn into_vec<T>(self) -> Option<Vec<T>> where
    T: TryFrom<ParameterizedValue<'a>>, 

Returns a Vec if the value is an array of T, otherwise None.

Trait Implementations

impl<'a> Clone for ParameterizedValue<'a>

fn clone(&self) -> ParameterizedValue<'a>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Debug for ParameterizedValue<'a>

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

Formats the value using the given formatter.

impl<'a> Display for ParameterizedValue<'a>

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

Formats the value using the given formatter.

impl<'a> From<&'a str> for ParameterizedValue<'a>

fn from(that: &'a str) -> Self

Performs the conversion.

impl<'a> From<DateTime<Utc>> for ParameterizedValue<'a>

fn from(that: DateTime<Utc>) -> Self

Performs the conversion.

impl<'a> From<Decimal> for ParameterizedValue<'a>

fn from(that: Decimal) -> Self

Performs the conversion.

impl<'a> From<ParameterizedValue<'a>> for Value

fn from(pv: ParameterizedValue<'a>) -> Self

Performs the conversion.

impl<'a> From<ParameterizedValue<'a>> for MyValue

fn from(pv: ParameterizedValue<'a>) -> MyValue

Performs the conversion.

impl<'a> From<String> for ParameterizedValue<'a>

fn from(that: String) -> Self

Performs the conversion.

impl<'a> From<Uuid> for ParameterizedValue<'a>

fn from(that: Uuid) -> Self

Performs the conversion.

impl<'a> From<Value> for ParameterizedValue<'a>

fn from(that: Value) -> Self

Performs the conversion.

impl<'a> From<bool> for ParameterizedValue<'a>

fn from(that: bool) -> Self

Performs the conversion.

impl<'a> From<f32> for ParameterizedValue<'a>

fn from(that: f32) -> Self

Performs the conversion.

impl<'a> From<f64> for ParameterizedValue<'a>

fn from(that: f64) -> Self

Performs the conversion.

impl<'a> From<i32> for ParameterizedValue<'a>

fn from(that: i32) -> Self

Performs the conversion.

impl<'a> From<i64> for ParameterizedValue<'a>

fn from(that: i64) -> Self

Performs the conversion.

impl<'a> From<usize> for ParameterizedValue<'a>

fn from(that: usize) -> Self

Performs the conversion.

impl<'a> PartialEq<ParameterizedValue<'a>> for ParameterizedValue<'a>

fn eq(&self, other: &ParameterizedValue<'a>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &ParameterizedValue<'a>) -> bool

This method tests for !=.

impl<'a> StructuralPartialEq for ParameterizedValue<'a>

impl<'a> ToSql for ParameterizedValue<'a>

fn to_sql(
    &self,
    ty: &PostgresType,
    out: &mut BytesMut
) -> Result<IsNull, Box<dyn Error + Send + Sync + 'static>>

Converts the value of self into the binary format of the specified Postgres Type, appending it to out.

fn accepts(_: &PostgresType) -> bool

Determines if a value of this type can be converted to the specified Postgres Type.

fn to_sql_checked(
    &self,
    ty: &PostgresType,
    out: &mut BytesMut
) -> Result<IsNull, Box<dyn Error + Send + Sync + 'static>>

An adaptor method used internally by Rust-Postgres.

impl<'a> ToSql for ParameterizedValue<'a>

fn to_sql(&self) -> Result<ToSqlOutput, RusqlError>

impl<'a> TryFrom<ParameterizedValue<'a>> for i64

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: ParameterizedValue<'a>) -> Result<i64, Self::Error>

Performs the conversion.

impl<'a> TryFrom<ParameterizedValue<'a>> for Decimal

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: ParameterizedValue<'a>) -> Result<Decimal, Self::Error>

Performs the conversion.

impl<'a> TryFrom<ParameterizedValue<'a>> for f64

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: ParameterizedValue<'a>) -> Result<f64, Self::Error>

Performs the conversion.

impl<'a> TryFrom<ParameterizedValue<'a>> for String

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: ParameterizedValue<'a>) -> Result<String, Self::Error>

Performs the conversion.

impl<'a> TryFrom<ParameterizedValue<'a>> for bool

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: ParameterizedValue<'a>) -> Result<bool, Self::Error>

Performs the conversion.

impl<'a> TryFrom<ParameterizedValue<'a>> for DateTime<Utc>

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: ParameterizedValue<'a>) -> Result<DateTime<Utc>, Self::Error>

Performs the conversion.

impl ValueIndex<ResultRow, ParameterizedValue<'static>> for usize

fn index_into<'v>(self, row: &'v ResultRow) -> &'v ParameterizedValue<'static>

impl<'_> ValueIndex<ResultRow, ParameterizedValue<'static>> for &'_ str

fn index_into<'v>(self, row: &'v ResultRow) -> &'v ParameterizedValue<'static>

impl<'_> ValueIndex<ResultRowRef<'_>, ParameterizedValue<'static>> for usize

fn index_into<'v>(
    self,
    row: &'v ResultRowRef
) -> &'v ParameterizedValue<'static>

impl<'_, '_> ValueIndex<ResultRowRef<'_>, ParameterizedValue<'static>> for &'_ str

fn index_into<'v>(
    self,
    row: &'v ResultRowRef
) -> &'v ParameterizedValue<'static>