Enum MigrationAction 

pub enum MigrationAction {
    CreateTable {
        table: TableName,
        columns: Vec<ColumnDef>,
        constraints: Vec<TableConstraint>,
    },
    DeleteTable {
        table: TableName,
    },
    AddColumn {
        table: TableName,
        column: Box<ColumnDef>,
        fill_with: Option<String>,
    },
    RenameColumn {
        table: TableName,
        from: ColumnName,
        to: ColumnName,
    },
    DeleteColumn {
        table: TableName,
        column: ColumnName,
    },
    ModifyColumnType {
        table: TableName,
        column: ColumnName,
        new_type: ColumnType,
    },
    ModifyColumnNullable {
        table: TableName,
        column: ColumnName,
        nullable: bool,
        fill_with: Option<String>,
    },
    ModifyColumnDefault {
        table: TableName,
        column: ColumnName,
        new_default: Option<String>,
    },
    ModifyColumnComment {
        table: TableName,
        column: ColumnName,
        new_comment: Option<String>,
    },
    AddConstraint {
        table: TableName,
        constraint: TableConstraint,
    },
    RemoveConstraint {
        table: TableName,
        constraint: TableConstraint,
    },
    RenameTable {
        from: TableName,
        to: TableName,
    },
    RawSql {
        sql: String,
    },
}

Variants

CreateTable

Fields

table: TableName

columns: Vec<ColumnDef>

constraints: Vec<TableConstraint>

DeleteTable

Fields

table: TableName

AddColumn

Fields

table: TableName

column: Box<ColumnDef>

fill_with: Option<String>

Optional fill value to backfill existing rows when adding NOT NULL without default.

RenameColumn

Fields

table: TableName

from: ColumnName

to: ColumnName

DeleteColumn

Fields

table: TableName

column: ColumnName

ModifyColumnType

Fields

table: TableName

column: ColumnName

new_type: ColumnType

ModifyColumnNullable

Fields

table: TableName

column: ColumnName

nullable: bool

fill_with: Option<String>

Required when changing from nullable to non-nullable to backfill existing NULL values.

ModifyColumnDefault

Fields

table: TableName

column: ColumnName

new_default: Option<String>

The new default value, or None to remove the default.

ModifyColumnComment

Fields

table: TableName

column: ColumnName

new_comment: Option<String>

The new comment, or None to remove the comment.

AddConstraint

Fields

table: TableName

constraint: TableConstraint

RemoveConstraint

Fields

table: TableName

constraint: TableConstraint

RenameTable

Fields

from: TableName

to: TableName

RawSql

Fields

sql: String

Trait Implementations

impl Clone for MigrationAction

fn clone(&self) -> MigrationAction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MigrationAction

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MigrationAction

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for MigrationAction

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

Formats the value using the given formatter.

impl JsonSchema for MigrationAction

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for MigrationAction

fn eq(&self, other: &MigrationAction) -> 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 Serialize for MigrationAction

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for MigrationAction

impl StructuralPartialEq for MigrationAction