Struct PrimaryKey 

#[non_exhaustive]
pub struct PrimaryKey {
    pub columns: Vec<String>,
    /* private fields */
}

Represents the primary key constraint on a table’s columns.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

columns: Vec<String>

Required. The columns that are composed of the primary key constraint.

Implementations

impl PrimaryKey

pub fn new() -> Self

Creates a new default instance.

pub fn set_columns<T, V>(self, v: T) -> Self

where T: IntoIterator<Item = V>, V: Into<String>,

Sets the value of columns.

Example

let x = PrimaryKey::new().set_columns(["a", "b", "c"]);

Trait Implementations

impl Clone for PrimaryKey

fn clone(&self) -> PrimaryKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PrimaryKey

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

Formats the value using the given formatter.

impl Default for PrimaryKey

fn default() -> PrimaryKey

Returns the “default value” for a type.

impl Message for PrimaryKey

fn typename() -> &'static str

The typename of this message.

impl PartialEq for PrimaryKey

fn eq(&self, other: &PrimaryKey) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for PrimaryKey