Enum Operation 

pub enum Operation {
    CreateTable {
        table: Table,
    },
    DropTable {
        table: Table,
    },
    RenameTable {
        old_name: String,
        new_name: String,
    },
    AcknowledgeTableOptions {
        table_name: String,
        old: TableOptionsMeta,
        new: TableOptionsMeta,
    },
    AddColumn {
        table_name: String,
        column: Column,
    },
    DropColumn {
        table_name: String,
        column: Column,
        cascade: bool,
    },
    RenameColumn {
        table_name: String,
        old_name: String,
        new_name: String,
    },
    AlterColumn {
        table_name: String,
        old: Column,
        new: Column,
        cast_expr: Option<String>,
    },
    AddForeignKey {
        table_name: String,
        foreign_key: ForeignKey,
    },
    DropForeignKey {
        table_name: String,
        foreign_key: ForeignKey,
        cascade: bool,
    },
    AddIndex {
        table_name: String,
        index: Index,
        concurrent: bool,
    },
    DropIndex {
        table_name: String,
        index: Index,
        concurrent: bool,
    },
    AddConstraint {
        table_name: String,
        constraint: Constraint,
    },
    DropConstraint {
        table_name: String,
        constraint: Constraint,
    },
    Statement {
        up: String,
        down: Option<String>,
    },
    CreateFunction {
        function: FunctionDef,
    },
    AlterFunction {
        old: FunctionDef,
        new: FunctionDef,
    },
    DropFunction {
        function: FunctionDef,
    },
    CreateTrigger {
        table_name: String,
        trigger: TriggerDef,
    },
    AlterTrigger {
        table_name: String,
        old: TriggerDef,
        new: TriggerDef,
    },
    DropTrigger {
        table_name: String,
        trigger: TriggerDef,
    },
    CreateView {
        view: ViewDef,
    },
    DropView {
        view: ViewDef,
    },
    ReplaceView {
        old: ViewDef,
        new: ViewDef,
    },
    CreateExtension {
        extension: ExtensionDef,
    },
    DropExtension {
        extension: ExtensionDef,
    },
    CreateEnum {
        enum_def: EnumDef,
    },
    DropEnum {
        enum_def: EnumDef,
    },
    RenameEnumValue {
        enum_name: String,
        schema: Option<String>,
        old_value: String,
        new_value: String,
    },
    AlterEnum {
        old: EnumDef,
        new: EnumDef,
    },
}

All possible schema change operations. Each variant carries the minimal data needed to describe the change.

Variants

CreateTable

Fields

table: Table

DropTable

Fields

table: Table

RenameTable

Fields

old_name: String

new_name: String

AcknowledgeTableOptions

Fields

table_name: String

old: TableOptionsMeta

new: TableOptionsMeta

AddColumn

Fields

table_name: String

column: Column

DropColumn

Fields

table_name: String

column: Column

cascade: bool

RenameColumn

Fields

table_name: String

old_name: String

new_name: String

AlterColumn

Fields

table_name: String

old: Column

new: Column

cast_expr: Option<String>

AddForeignKey

Fields

table_name: String

foreign_key: ForeignKey

DropForeignKey

Fields

table_name: String

foreign_key: ForeignKey

cascade: bool

AddIndex

Fields

table_name: String

index: Index

concurrent: bool

DropIndex

Fields

table_name: String

index: Index

concurrent: bool

AddConstraint

Fields

table_name: String

constraint: Constraint

DropConstraint

Fields

table_name: String

constraint: Constraint

Statement

Fields

up: String

down: Option<String>

CreateFunction

Fields

function: FunctionDef

AlterFunction

Fields

old: FunctionDef

new: FunctionDef

DropFunction

Fields

function: FunctionDef

CreateTrigger

Fields

table_name: String

trigger: TriggerDef

AlterTrigger

Fields

table_name: String

old: TriggerDef

new: TriggerDef

DropTrigger

Fields

table_name: String

trigger: TriggerDef

CreateView

Fields

view: ViewDef

DropView

Fields

view: ViewDef

ReplaceView

Fields

old: ViewDef

new: ViewDef

CreateExtension

Fields

extension: ExtensionDef

DropExtension

Fields

extension: ExtensionDef

CreateEnum

Fields

enum_def: EnumDef

DropEnum

Fields

enum_def: EnumDef

RenameEnumValue

Fields

enum_name: String

schema: Option<String>

old_value: String

new_value: String

AlterEnum

Fields

old: EnumDef

new: EnumDef

Implementations

impl Operation

pub fn inverse(&self) -> Option<Operation>

pub fn table_name(&self) -> Option<&str>

pub fn entity_name(&self) -> Cow<'_, str>

pub fn type_name(&self) -> &'static str

pub fn entity_kind(&self) -> Option<EntityKind>

pub fn is_create(&self) -> bool

pub fn is_drop(&self) -> bool

pub fn forward_deps(&self) -> Vec<Dep>

pub fn backward_deps(&self) -> Vec<Dep>

pub fn entity_label(&self) -> Option<&str>

Returns the primary entity label used for deterministic migration names.

pub fn touched_entities(&self) -> Vec<(EntityKind, String)>

Returns the stable entity identities touched by this operation.

Trait Implementations

impl Clone for Operation

fn clone(&self) -> Operation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Operation

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Operation

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Operation

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Operation

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 Operation