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DdlGenerator

sqlmodel_schema::ddl

Trait DdlGenerator 

Source 
pub trait DdlGenerator {
    // Required methods
    fn dialect(&self) -> &'static str;
    fn generate(&self, op: &SchemaOperation) -> Vec<String>;

    // Provided methods
    fn generate_all(&self, ops: &[SchemaOperation]) -> Vec<String> { ... }
    fn generate_rollback(&self, ops: &[SchemaOperation]) -> Vec<String> { ... }
}
Expand description

Generates DDL SQL statements from schema operations.

Required Methods§

Source

fn dialect(&self) -> &'static str

The database dialect name.

Source

fn generate(&self, op: &SchemaOperation) -> Vec<String>

Generate DDL statement(s) for a single schema operation.

Some operations (like SQLite DROP COLUMN) may produce multiple statements.

Provided Methods§

Source

fn generate_all(&self, ops: &[SchemaOperation]) -> Vec<String>

Generate DDL statements for multiple operations.

Source

fn generate_rollback(&self, ops: &[SchemaOperation]) -> Vec<String>

Generate rollback DDL statements (inverse operations).

Returns statements in reverse order, suitable for undoing the original operations. Operations without an inverse (like DROP TABLE) are skipped.

Implementors§