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use crate::*;
pub trait ForeignKeyBuilder: QuotedBuilder {
fn prepare_foreign_key_create_statement(
&self,
create: &ForeignKeyCreateStatement,
sql: &mut SqlWriter,
) {
self.prepare_foreign_key_create_statement_internal(create, sql, false)
}
fn prepare_foreign_key_action(
&self,
foreign_key_action: &ForeignKeyAction,
sql: &mut SqlWriter,
) {
write!(
sql,
"{}",
match foreign_key_action {
ForeignKeyAction::Restrict => "RESTRICT",
ForeignKeyAction::Cascade => "CASCADE",
ForeignKeyAction::SetNull => "SET NULL",
ForeignKeyAction::NoAction => "NO ACTION",
ForeignKeyAction::SetDefault => "SET DEFAULT",
}
)
.unwrap()
}
fn prepare_foreign_key_drop_statement(
&self,
drop: &ForeignKeyDropStatement,
sql: &mut SqlWriter,
);
#[doc(hidden)]
fn prepare_foreign_key_create_statement_internal(
&self,
create: &ForeignKeyCreateStatement,
sql: &mut SqlWriter,
inside_table_creation: bool,
);
}