Struct pg_worm::query::TypedColumn

pub struct TypedColumn<T: ToSql + Sync> { /* private fields */ }

A wrapper around the Column struct which includes the rust type of the field.

For each field of a pg_worm::Model a TypedColumn is automatically generated.

A TypedColumn can be used to access information about the column and create Filters regarding this column.

Example

use pg_worm::Model;

#[derive(Model)]
struct Foo {
    baz: i64
}

assert_eq!(Foo::baz.column_name(), "baz");

Implementations

impl<T: ToSql + Sync + Send + 'static> TypedColumn<T>

pub const fn new( table_name: &'static str, column_name: &'static str ) -> TypedColumn<T>

pub const fn name(&self) -> &'static str

Get the column’s name

pub const fn nullable(self) -> TypedColumn<T>

pub const fn unique(self) -> TypedColumn<T>

pub const fn primary_key(self) -> TypedColumn<T>

pub const fn generated(self) -> TypedColumn<T>

pub fn eq(&self, value: impl Into<T>) -> Filter

Check whether the columns value is equal to value.

Translates to WHERE <column_name> = <value>.

pub fn one_of(&self, values: Vec<impl Into<T>>) -> Filter

Check whether the columns value is one of values.

Translates to WHERE <column_name> IN <values>

pub fn is_null(&self) -> Filter

impl TypedColumn<String>

pub fn like(&self, val: impl Into<String>) -> Filter

Query for values which are LIKE val.

Methods from Deref<Target = Column>

pub fn unique(&self) -> bool

pub fn nullable(&self) -> bool

pub fn primary_key(&self) -> bool

pub fn generated(&self) -> bool

pub fn column_name(&self) -> &'static str

Get the column name.

pub fn table_name(&self) -> &'static str

Get the name of the table this column is part of.

pub fn full_name(&self) -> String

Get the full name of the column.

Example

use pg_worm::Model;

#[derive(Model)]
struct Foo {
    baz: String
}
assert_eq!(Foo::baz.full_name(), "foo.baz");

Trait Implementations

impl<T: Clone + ToSql + Sync> Clone for TypedColumn<T>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug + ToSql + Sync> Debug for TypedColumn<T>

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

Formats the value using the given formatter.

impl<T: ToSql + Sync> Deref for TypedColumn<T>

type Target = Column

The resulting type after dereferencing.

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

Dereferences the value.

impl<T: Copy + ToSql + Sync> Copy for TypedColumn<T>