Struct SchemaDiff 

pub struct SchemaDiff<'a> { /* private fields */ }

The top-level diff between two database schemas.

Contains a TablesDiff describing created, dropped, and altered tables. Constructed via SchemaDiff::from.

Examples

use toasty_core::schema::db::{SchemaDiff, RenameHints, Schema};

let previous = Schema::default();
let next = Schema::default();
let hints = RenameHints::new();
let diff = SchemaDiff::from(&previous, &next, &hints);
assert!(diff.is_empty());

Implementations

impl<'a> SchemaDiff<'a>

pub fn from( from: &'a Schema, to: &'a Schema, rename_hints: &'a RenameHints, ) -> Self

Computes the diff between two schemas, using the provided rename hints.

pub fn tables(&self) -> &TablesDiff<'a>

Returns the table-level diff.

pub fn is_empty(&self) -> bool

Returns true if no tables were created, dropped, or altered.

pub fn previous(&self) -> &'a Schema

Returns the schema before the change.

pub fn next(&self) -> &'a Schema

Returns the schema after the change.