Enum FieldChange 

pub enum FieldChange {
    AddField {
        name: String,
        default: String,
    },
    RemoveField {
        name: String,
    },
    RenameField {
        from: String,
        to: String,
    },
    ChangeType {
        name: String,
        description: String,
    },
}

A single field change within a migration step.

Variants

AddField

Add a new field with a default value.

Fields

name: String

Name of the field.

default: String

Default value as a string.

RemoveField

Remove a field.

Fields

name: String

Name of the field to remove.

RenameField

Rename a field.

Fields

from: String

Original name.

to: String

New name.

ChangeType

Change the type of a field (with a conversion description).

Fields

name: String

Name of the field.

description: String

Description of the type change.

Trait Implementations

impl Clone for FieldChange

fn clone(&self) -> FieldChange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FieldChange

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

Formats the value using the given formatter.

impl PartialEq for FieldChange

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FieldChange