Enum VersionStorage 

pub enum VersionStorage {
    UserVersion,
    Table {
        table: String,
        key: String,
    },
    VersionTable {
        table: String,
        version_column: String,
        applied_at_column: String,
    },
}

Where migration versions are stored. Table storage uses Blueprint-compatible key TEXT PRIMARY KEY, value TEXT NOT NULL rows, leaving user_version untouched.

Variants

UserVersion

Table

Table names must contain only ASCII letters, digits, or underscores. Keys are bound parameters and may contain arbitrary text.

Fields

table: String

key: String

VersionTable

One row per applied version, shaped "<version_column>" INTEGER PRIMARY KEY, "<applied_at_column>" INTEGER NOT NULL (ViewRight’s _migrations shape). The applied version is the highest stored version_column; a rollback deletes the top row. The table is created on the first write when absent. Identifiers must be ASCII letters, digits, or underscores. applied_at stores unix seconds.

Fields

table: String

version_column: String

applied_at_column: String

Implementations

impl VersionStorage

pub fn version_table(table: impl Into<String>) -> Self

VersionStorage::VersionTable with the version and applied_at column names.

Trait Implementations

impl Clone for VersionStorage

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 VersionStorage

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

Formats the value using the given formatter.

impl Default for VersionStorage

fn default() -> Self

Returns the “default value” for a type.

impl Eq for VersionStorage

impl PartialEq for VersionStorage

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for VersionStorage