Struct postgres::types::Json

pub struct Json<T>(pub T);

A wrapper type to allow arbitrary Serialize/Deserialize types to convert to Postgres JSON values.

Tuple Fields

0: T

Trait Implementations

impl<T> Clone for Json<T>

where T: Clone,

fn clone(&self) -> Json<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T> Debug for Json<T>

where T: Debug,

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

Formats the value using the given formatter.

impl<T> Default for Json<T>

where T: Default,

fn default() -> Json<T>

Returns the “default value” for a type.

impl<'a, T> FromSql<'a> for Json<T>

where T: Deserialize<'a>,

fn from_sql( ty: &Type, raw: &'a [u8], ) -> Result<Json<T>, Box<dyn Error + Sync + Send>>

Creates a new value of this type from a buffer of data of the specified Postgres Type in its binary format.

fn accepts(ty: &Type) -> bool

Determines if a value of this type can be created from the specified Postgres Type.

fn from_sql_null(ty: &Type) -> Result<Self, Box<dyn Error + Sync + Send>>

Creates a new value of this type from a NULL SQL value.

fn from_sql_nullable( ty: &Type, raw: Option<&'a [u8]>, ) -> Result<Self, Box<dyn Error + Sync + Send>>

A convenience function that delegates to from_sql and from_sql_null depending on the value of raw.

impl<T> PartialEq for Json<T>

where T: PartialEq,

fn eq(&self, other: &Json<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T> ToSql for Json<T>

where T: Serialize + Debug,

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

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

fn accepts(ty: &Type) -> bool

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

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

An adaptor method used internally by Rust-Postgres.

fn encode_format(&self, _ty: &Type) -> Format

Specify the encode format

impl<T> Eq for Json<T>

where T: Eq,

impl<T> StructuralPartialEq for Json<T>