Enum AutoMigratePrecheck 

pub enum AutoMigratePrecheck<'def> {
    CheckAddSequenceRangeValid(<SequenceDef as ModuleDefLookup>::Key<'def>),
}

Checks that must be performed before performing an automatic migration. These checks can access table contents and other database state.

Variants

CheckAddSequenceRangeValid(<SequenceDef as ModuleDefLookup>::Key<'def>)

Perform a check that adding a sequence is valid (the relevant column contains no values greater than the sequence’s start value).

Trait Implementations

impl<'def> Debug for AutoMigratePrecheck<'def>

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

Formats the value using the given formatter.

impl<'def> Ord for AutoMigratePrecheck<'def>

fn cmp(&self, other: &AutoMigratePrecheck<'def>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<'def> PartialEq for AutoMigratePrecheck<'def>

fn eq(&self, other: &AutoMigratePrecheck<'def>) -> 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<'def> PartialOrd for AutoMigratePrecheck<'def>

fn partial_cmp(&self, other: &AutoMigratePrecheck<'def>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'def> Eq for AutoMigratePrecheck<'def>

impl<'def> StructuralPartialEq for AutoMigratePrecheck<'def>