Struct Json

pub struct Json<T: Sized>(pub T);

Wrapper type that implements Json data handling for postgres diesel connection

Use as wrapper for fields that are stored in Jsonb format

#[derive(serde::Serialize, serde::Deserialize, Debug)]
pub struct ComplexStruct {
  // ...
}

#[derive(serde::Serialize, serde::Deserialize,
         diesel::Queryable, diesel::Insertable)]
pub struct ExampleTable {
    // Field that will be stored in Json, Jsonb format
    pub jsonb_field: diesel_json::Json<ComplexStruct>,
}

Tuple Fields

0: T

Implementations

impl<T> Json<T>

pub fn new(value: T) -> Json<T>

Trait Implementations

impl<'__expr, T: Sized> AsExpression<Jsonb> for &'__expr Json<T>

type Expression = Bound<Jsonb, &'__expr Json<T>>

The expression being returned

fn as_expression(self) -> <Self as AsExpression<Jsonb>>::Expression

Perform the conversion

impl<T: Sized> AsExpression<Jsonb> for Json<T>

type Expression = Bound<Jsonb, Json<T>>

The expression being returned

fn as_expression(self) -> <Self as AsExpression<Jsonb>>::Expression

Perform the conversion

impl<'__expr, T: Sized> AsExpression<Nullable<Jsonb>> for &'__expr Json<T>

type Expression = Bound<Nullable<Jsonb>, &'__expr Json<T>>

The expression being returned

fn as_expression(self) -> <Self as AsExpression<Nullable<Jsonb>>>::Expression

Perform the conversion

impl<T: Sized> AsExpression<Nullable<Jsonb>> for Json<T>

type Expression = Bound<Nullable<Jsonb>, Json<T>>

The expression being returned

fn as_expression(self) -> <Self as AsExpression<Nullable<Jsonb>>>::Expression

Perform the conversion

impl<T> AsMut<T> for Json<T>

fn as_mut(&mut self) -> &mut T

Converts this type into a mutable reference of the (usually inferred) input type.

impl<T> AsRef<T> for Json<T>

fn as_ref(&self) -> &T

Converts this type into a shared reference of the (usually inferred) input type.

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

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 + Sized> Debug for Json<T>

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

Formats the value using the given formatter.

impl<T> Default for Json<T>

where T: Default,

fn default() -> Self

Returns the “default value” for a type.

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> + Sized,

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T> FromSql<Jsonb, Pg> for Json<T>

where T: Debug + DeserializeOwned,

fn from_sql(bytes: PgValue<'_>) -> Result<Self>

See the trait documentation.

fn from_nullable_sql( bytes: Option<<DB as Backend>::RawValue<'_>>, ) -> Result<Self, Box<dyn Error + Sync + Send>>

A specialized variant of from_sql for handling null values.

impl<T> PartialEq for Json<T>

where T: PartialEq,

fn eq(&self, other: &Self) -> 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: Sized, __DB, __ST> Queryable<__ST, __DB> for Json<T>

where __DB: Backend, __ST: SingleValue, Self: FromSql<__ST, __DB>,

type Row = Json<T>

The Rust type you’d like to map from.

fn build(row: Self) -> Result<Self>

Construct an instance of this type

impl<T> Serialize for Json<T>

where T: Serialize + Sized,

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<T> ToSql<Jsonb, Pg> for Json<T>

where T: Debug + Serialize,

fn to_sql(&self, out: &mut Output<'_, '_, Pg>) -> Result

See the trait documentation.

impl<T: Sized, __DB> ToSql<Nullable<Jsonb>, __DB> for Json<T>

where __DB: Backend, Self: ToSql<Jsonb, __DB>,

fn to_sql<'__b>(&'__b self, out: &mut Output<'__b, '_, __DB>) -> Result

See the trait documentation.