Struct MigrationTracking 

pub struct MigrationTracking {
    pub table: Cow<'static, str>,
    pub schema: Option<Cow<'static, str>>,
}

Where applied migrations are recorded: the tracking table and its schema.

Shared by the CLI and the runtime migrator. Each dialect has a default constant; adjust it with the builder methods.

Examples

use drizzle_types::MigrationTracking;

let tracking = MigrationTracking::POSTGRES.table("schema_history");
assert_eq!(tracking.table, "schema_history");
assert_eq!(tracking.schema.as_deref(), Some("drizzle"));

Fields

table: Cow<'static, str>

Migrations tracking table name.

schema: Option<Cow<'static, str>>

Schema of the tracking table (used by PostgreSQL; None elsewhere).

Implementations

impl MigrationTracking

pub const SQLITE: Self

SQLite default: table __drizzle_migrations, no schema.

pub const POSTGRES: Self

PostgreSQL default: table __drizzle_migrations in schema drizzle.

pub const MYSQL: Self

MySQL default: table __drizzle_migrations in the connection’s database.

pub fn new( table: impl Into<Cow<'static, str>>, schema: Option<impl Into<Cow<'static, str>>>, ) -> Self

Creates tracking metadata from a table name and an optional schema.

pub fn table(self, table: impl Into<Cow<'static, str>>) -> Self

Replaces the table name, keeping the schema.

pub fn schema(self, schema: impl Into<Cow<'static, str>>) -> Self

Sets the schema, keeping the table name.

pub fn without_schema(self) -> Self

Removes the schema, keeping the table name.

Trait Implementations

impl Clone for MigrationTracking

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MigrationTracking

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

Formats the value using the given formatter.

impl Default for MigrationTracking

fn default() -> Self

Returns the “default value” for a type.

impl Eq for MigrationTracking

impl Hash for MigrationTracking

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for MigrationTracking

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MigrationTracking