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use crate::{backend::SchemaBuilder, types::*, SchemaStatementBuilder};
/// Rename a table
///
/// # Examples
///
/// ```
/// use sea_query::{tests_cfg::*, *};
///
/// let table = Table::rename()
/// .table(Font::Table, Alias::new("font_new"))
/// .to_owned();
///
/// assert_eq!(
/// table.to_string(MysqlQueryBuilder),
/// r#"RENAME TABLE `font` TO `font_new`"#
/// );
/// assert_eq!(
/// table.to_string(PostgresQueryBuilder),
/// r#"ALTER TABLE "font" RENAME TO "font_new""#
/// );
/// assert_eq!(
/// table.to_string(SqliteQueryBuilder),
/// r#"ALTER TABLE "font" RENAME TO "font_new""#
/// );
/// ```
#[derive(Default, Debug, Clone)]
pub struct TableRenameStatement {
pub(crate) from_name: Option<TableRef>,
pub(crate) to_name: Option<TableRef>,
}
impl TableRenameStatement {
/// Construct rename table statement
pub fn new() -> Self {
Self::default()
}
/// Set old and new table name
pub fn table<T, R>(&mut self, from_name: T, to_name: R) -> &mut Self
where
T: IntoTableRef,
R: IntoTableRef,
{
self.from_name = Some(from_name.into_table_ref());
self.to_name = Some(to_name.into_table_ref());
self
}
pub fn take(&mut self) -> Self {
Self {
from_name: self.from_name.take(),
to_name: self.to_name.take(),
}
}
}
impl SchemaStatementBuilder for TableRenameStatement {
fn build<T: SchemaBuilder>(&self, schema_builder: T) -> String {
let mut sql = String::with_capacity(256);
schema_builder.prepare_table_rename_statement(self, &mut sql);
sql
}
fn build_any(&self, schema_builder: &dyn SchemaBuilder) -> String {
let mut sql = String::with_capacity(256);
schema_builder.prepare_table_rename_statement(self, &mut sql);
sql
}
}