[−][src]Struct barrel::table::Column

pub struct Column {
    pub unique: bool,
    pub indexed: bool,
    pub nullable: bool,
    pub increments: bool,
    pub _type: Type,
    pub def: Option<ColumnDefault>,
}

Fields

unique: bool

Is this a unique key

indexed: bool

Should the database create an index

nullable: bool

Can this column be NULL

increments: bool

Does it auto-increment

_type: Type

What's the column type

def: Option<ColumnDefault>

What's default value records in this column

Methods

impl Column[src]

pub fn new(t: Type) -> Column[src]

Lazy constructor mostly used in unit tests

pub fn default<T: Into<ColumnDefault>>(&mut self, data: T) -> &mut Column[src]

Set a default value for this column

pub fn nullable(&mut self) -> &mut Column[src]

Set a column to allow being null

pub fn increments(&mut self) -> &mut Column[src]

Setup this column to automatically increment (such as integers)

Throws an error if the column type can't increment (like booleans)

Trait Implementations

impl Clone for Column[src]

fn clone_from(&mut self, source: &Self)
1.0.0
[src]

Performs copy-assignment from source. Read more

impl Debug for Column[src]

Auto Trait Implementations

impl Send for Column

impl Sync for Column

Blanket Implementations

impl<T, U> Into for T where
    U: From<T>, [src]

impl<T> From for T[src]

impl<T> ToOwned for T where
    T: Clone, [src]

type Owned = T

impl<T, U> TryFrom for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized, [src]

impl<T, U> TryInto for T where
    U: TryFrom<T>, [src]

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

The type returned in the event of a conversion error.

impl<T> BorrowMut for T where
    T: ?Sized, [src]

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

impl<T> IntoSql for T[src]

fn into_sql<T>(self) -> Self::Expression where
    Self: AsExpression<T>, [src]

Convert self to an expression for Diesel's query builder. Read more

fn as_sql<'a, T>(&'a self) -> <&'a Self as AsExpression<T>>::Expression where
    &'a Self: AsExpression<T>, [src]

Convert &self to an expression for Diesel's query builder. Read more