PostgresWrite

Struct PostgresWrite 

Source
pub struct PostgresWrite {
    pub fields: &'static [&'static str],
    pub arguments: Vec<Box<dyn ToSql + Sync>>,
}
Expand description

A struct that contains data to write into a Postgres table.

Fields§

§fields: &'static [&'static str]

The fields that will be provided.

§arguments: Vec<Box<dyn ToSql + Sync>>

The arguments to insert. This supports either a single row or multiple rows.

arguments.len() % fields.len() must always be 0.

Implementations§

Source§

impl PostgresWrite

Source

pub fn into_insert( &self, table_name: &str, ) -> (String, Vec<&(dyn ToSql + Sync)>)

Convert this write into a regular INSERT statement.

The returned tuple contains the query string and argument slice to pass to [DatabaseConnection::query].

Source

pub fn into_bulk_insert( &self, table_name: &str, ) -> (String, Vec<&(dyn ToSql + Sync)>)

Convert this write into a bulk INSERT statement capable of inserting multiple rows.

Source

pub fn into_update( &self, table_name: &str, arg_offset: usize, ) -> (String, Vec<&(dyn ToSql + Sync)>)

Convert this write into an UPDATE statement. arg_offset specifies how many parameters are already bound in the generated query (useful when combining with a WHERE clause).

Trait Implementations§

Source§

impl Debug for PostgresWrite

Source§

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

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

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

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

Source§

fn into(self) -> U

Calls U::from(self).

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

Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
Source§

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

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

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

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
Source§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

Source§

fn vzip(self) -> V