Struct Json 

pub struct Json<T>(pub T);

A wrapper for JSON columns in the database. This type allows users to easily cast a column to a struct that implements Serialize and Deserialize.

Tuple Fields

0: T

Trait Implementations

impl<T: Clone> Clone for Json<T>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Json<T>

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

Formats the value using the given formatter.

impl<'r, T: DeserializeOwned> Decode<'r, Any> for Json<T>

Available on neither crate feature strict-mysql nor crate feature strict-postgres nor crate feature strict-sqlite.

fn decode( value: AnyValueRef<'r>, ) -> Result<Self, Box<dyn Error + Send + Sync + 'static>>

Decode a new value of this type using a raw value from the database.

impl<T> Deref for Json<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<T> DerefMut for Json<T>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<'de, T> Deserialize<'de> for Json<T>

where T: Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'q, T: Serialize> Encode<'q, Any> for Json<T>

Available on neither crate feature strict-mysql nor crate feature strict-postgres nor crate feature strict-sqlite.

fn encode_by_ref( &self, buf: &mut <Any as Database>::ArgumentBuffer, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

Writes the value of self into buf without moving self.

fn encode( self, buf: &mut <DB as Database>::ArgumentBuffer, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

where Self: Sized,

Writes the value of self into buf in the expected format for the database.

fn produces(&self) -> Option<<DB as Database>::TypeInfo>

fn size_hint(&self) -> usize

impl<T: PartialEq> PartialEq for Json<T>

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> Serialize for Json<T>

where T: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<T> Type<Any> for Json<T>

Available on neither crate feature strict-mysql nor crate feature strict-postgres nor crate feature strict-sqlite.

fn type_info() -> AnyTypeInfo

Returns the canonical SQL type for this Rust type.

fn compatible(ty: &<DB as Database>::TypeInfo) -> bool

Determines if this Rust type is compatible with the given SQL type.

impl<T: Eq> Eq for Json<T>

impl<T> StructuralPartialEq for Json<T>