Struct ConstraintLayout 

pub struct ConstraintLayout {
    pub name: String,
    pub constraint_type: u8,
    pub columns: Vec<String>,
    pub ref_table: Option<String>,
    pub ref_columns: Option<Vec<String>>,
}

Plain, engine-agnostic view of a persisted constraint definition.

Fields

name: String

Constraint name.

constraint_type: u8

ConstraintType discriminant byte.

columns: Vec<String>

Constrained column names.

ref_table: Option<String>

Referenced table (foreign keys).

ref_columns: Option<Vec<String>>

Referenced columns (foreign keys).

Trait Implementations

impl Clone for ConstraintLayout

fn clone(&self) -> ConstraintLayout

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConstraintLayout

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

Formats the value using the given formatter.

impl PartialEq for ConstraintLayout

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ConstraintLayout