Enum ConstraintState 

pub enum ConstraintState {
    Unique {
        name: String,
        columns: Vec<String>,
    },
    Check {
        name: String,
        sql: String,
    },
}

A table-level constraint.

Variants

Unique

UNIQUE (a, b).

Fields

name: String

Constraint name.

columns: Vec<String>

Columns.

Check

CHECK (<sql>). The SQL is written by the model author.

Fields

name: String

Constraint name.

sql: String

Boolean SQL expression.

Implementations

impl ConstraintState

pub fn from_meta(meta: &ConstraintMeta) -> Self

Copy a ConstraintMeta.

pub fn name(&self) -> &str

Constraint name.

Trait Implementations

impl Clone for ConstraintState

fn clone(&self) -> ConstraintState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConstraintState

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ConstraintState

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ConstraintState

impl PartialEq for ConstraintState

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ConstraintState

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ConstraintState