Struct 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::prelude::*;

#[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>

Creates anew TypedColumn<T>.

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

Set this property so true.

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

Set this property so true.

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

Set this property so true.

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

Set this property so true.

pub fn eq<'a>(&self, other: &'a T) -> Where<'a>

Returns a Where clause which checks whether this column is equal to some value.

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

pub fn gt<'a>(&self, other: &'a T) -> Where<'a>

Check whether this column’s value is greater than some other value.

pub fn gte<'a>(&self, other: &'a T) -> Where<'a>

Check whether this colum’s value is greater than or equal to another value.

pub fn lt<'a>(&self, other: &'a T) -> Where<'a>

Check whether this column’s value is less than some other value.

pub fn lte<'a>(&self, other: &'a T) -> Where<'a>

Check whether this colum’s value is less than or equal to another value.

impl<'a, T: ToSql + Sync + 'a> TypedColumn<Option<T>>

pub fn null(&self) -> Where<'a>

Check whether this column’s value is NULL.

pub fn not_noll(&self) -> Where<'a>

Check whether this column’s value is NOT NULL

impl<'a, T: ToSql + Sync + 'a> TypedColumn<Vec<T>>

pub fn contains(&self, value: &'a T) -> Where<'a>

Check whether this column’s array contains some value.

pub fn contains_not(&self, value: &'a T) -> Where<'a>

Check whether this column’s array does NOT contain some value.

pub fn contains_any(&self, values: &'a Vec<&'a T>) -> Where<'a>

Check whether this column’s array contains any value of another array.

pub fn contains_all(&self, values: &'a Vec<&'a T>) -> Where<'a>

Check whether this column’s array contains all values of another array.

pub fn contains_none(&self, values: &'a Vec<&'a T>) -> Where<'a>

Check whether this column’s array does not overlap with another array, i.e. contains none of its values.

impl<'a> TypedColumn<String>

pub fn contains(&self, other: &'a String) -> Where<'a>

Check whethre a string contains a substring. Case sensitive.

Methods from Deref<Target = Column>

pub fn unique(&self) -> bool

Returns this propertie’s value.

pub fn nullable(&self) -> bool

Returns this propertie’s value.

pub fn primary_key(&self) -> bool

Returns this propertie’s value.

pub fn generated(&self) -> bool

Returns this propertie’s value.

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::prelude::*;

#[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>