Struct Json

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pub struct Json<T>(pub T);
Expand description

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

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§0: T

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

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

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T> Debug for Json<T>
where T: Debug,

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

Formats the value using the given formatter. Read more
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impl<T> Default for Json<T>
where T: Default,

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fn default() -> Json<T>

Returns the “default value” for a type. Read more
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impl<'a, T> FromSql<'a> for Json<T>
where T: Deserialize<'a>,

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

Creates a new value of this type from a buffer of data of the specified Postgres Type in its binary format. Read more
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fn accepts(ty: &Type) -> bool

Determines if a value of this type can be created from the specified Postgres Type.
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fn from_sql_null(ty: &Type) -> Result<Self, Box<dyn Error + Send + Sync>>

Creates a new value of this type from a NULL SQL value. Read more
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fn from_sql_nullable( ty: &Type, raw: Option<&'a [u8]>, ) -> Result<Self, Box<dyn Error + Send + Sync>>

A convenience function that delegates to from_sql and from_sql_null depending on the value of raw.
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impl<T> PartialEq for Json<T>
where T: PartialEq,

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<T> ToSql for Json<T>
where T: Serialize + Debug,

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

Converts the value of self into the binary format of the specified Postgres Type, appending it to out. Read more
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fn accepts(ty: &Type) -> bool

Determines if a value of this type can be converted to the specified Postgres Type.
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fn to_sql_checked( &self, ty: &Type, out: &mut BytesMut, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

An adaptor method used internally by Rust-Postgres. Read more
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fn encode_format(&self, _ty: &Type) -> Format

Specify the encode format
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impl<T> Eq for Json<T>
where T: Eq,

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impl<T> StructuralPartialEq for Json<T>

Auto Trait Implementations§

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impl<T> Freeze for Json<T>
where T: Freeze,

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impl<T> RefUnwindSafe for Json<T>
where T: RefUnwindSafe,

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impl<T> Send for Json<T>
where T: Send,

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impl<T> Sync for Json<T>
where T: Sync,

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impl<T> Unpin for Json<T>
where T: Unpin,

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impl<T> UnwindSafe for Json<T>
where T: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> BorrowToSql for T
where T: ToSql,

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fn borrow_to_sql(&self) -> &dyn ToSql

Returns a reference to self as a ToSql trait object.
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> FromSqlOwned for T
where T: for<'a> FromSql<'a>,

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