Struct sea_query::extension::postgres::TypeDropStatement

pub struct TypeDropStatement { /* fields omitted */ }

This is supported on crate feature backend-postgres only.

Implementations

impl TypeDropStatement

pub fn new() -> Self

pub fn name<T>(&mut self, name: T) -> &mut Self where
    T: IntoIden, 

Drop a type

use sea_query::{*, extension::postgres::Type};

struct FontFamily;

impl Iden for FontFamily {
    fn unquoted(&self, s: &mut dyn std::fmt::Write) {
        write!(s, "{}", "font_family").unwrap();
    }
}

assert_eq!(
    Type::drop()
        .if_exists()
        .name(FontFamily)
        .restrict()
        .to_string(PostgresQueryBuilder),
    r#"DROP TYPE IF EXISTS "font_family" RESTRICT"#
);

pub fn names<T, I>(&mut self, names: I) -> &mut Self where
    T: IntoIden,
    I: IntoIterator<Item = T>, 

pub fn if_exists(&mut self) -> &mut Self

Set IF EXISTS

pub fn cascade(&mut self) -> &mut Self

Set CASCADE

pub fn restrict(&mut self) -> &mut Self

Set RESTRICT

pub fn build<T: TypeBuilder>(&self, type_builder: T) -> (String, Vec<Value>)

pub fn build_ref<T: TypeBuilder>(
    &self,
    type_builder: &T
) -> (String, Vec<Value>)

pub fn build_collect<T: TypeBuilder>(
    &self,
    type_builder: T,
    collector: &mut dyn FnMut(Value)
) -> String

pub fn build_collect_ref<T: TypeBuilder>(
    &self,
    type_builder: &T,
    collector: &mut dyn FnMut(Value)
) -> String

pub fn to_string<T>(&self, type_builder: T) -> String where
    T: TypeBuilder + QueryBuilder, 

Build corresponding SQL statement and return SQL string

Trait Implementations

impl Clone for TypeDropStatement

fn clone(&self) -> TypeDropStatement

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TypeDropStatement

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

Formats the value using the given formatter.

impl Default for TypeDropStatement

fn default() -> TypeDropStatement

Returns the “default value” for a type.