Enum MigrationTransform 

pub enum MigrationTransform {
    RenameField {
        from: String,
        to: String,
    },
    AddField {
        name: String,
        default_value: String,
    },
    RemoveField {
        name: String,
    },
    ConvertType {
        field: String,
        from_type: String,
        to_type: String,
    },
}

An atomic transformation applied to a rule set during migration.

Variants

RenameField

Rename a field across all rules in the set.

Fields

from: String

Original field name.

to: String

Target field name.

AddField

Insert a new field with a default value into all rules.

Fields

name: String

Name of the new field.

default_value: String

Serialised default value for the field.

RemoveField

Remove a field from all rules (data may be lost — lossy).

Fields

name: String

Name of the field to remove.

ConvertType

Convert the type of an existing field (may be lossy).

Fields

field: String

Field whose type is changed.

from_type: String

Source type descriptor (informational).

to_type: String

Destination type descriptor (informational).

Trait Implementations

impl Clone for MigrationTransform

fn clone(&self) -> MigrationTransform

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MigrationTransform

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

Formats the value using the given formatter.

impl PartialEq for MigrationTransform

fn eq(&self, other: &MigrationTransform) -> 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 MigrationTransform