Struct migration::OnConflict

pub struct OnConflict { /* private fields */ }

Implementations§

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impl OnConflict

pub fn new() -> OnConflict

Create a ON CONFLICT expression without target column, a special method designed for MySQL

pub fn column<C>(column: C) -> OnConflictwhere C: IntoIden,

Set ON CONFLICT target column

pub fn columns<I, C>(columns: I) -> OnConflictwhere C: IntoIden, I: IntoIterator<Item = C>,

Set ON CONFLICT target columns

pub fn do_nothing(&mut self) -> &mut OnConflict

pub fn update_column<C>(&mut self, column: C) -> &mut OnConflictwhere C: IntoIden,

Set ON CONFLICT update column

pub fn update_columns<C, I>(&mut self, columns: I) -> &mut OnConflictwhere C: IntoIden, I: IntoIterator<Item = C>,

Set ON CONFLICT update columns

Examples

use sea_query::{tests_cfg::*, *};

let query = Query::insert()
    .into_table(Glyph::Table)
    .columns([Glyph::Aspect, Glyph::Image])
    .values_panic(vec![
        2.into(),
        3.into(),
    ])
    .on_conflict(
        OnConflict::column(Glyph::Id)
            .update_columns([Glyph::Aspect, Glyph::Image])
            .to_owned(),
    )
    .to_owned();

assert_eq!(
    query.to_string(MysqlQueryBuilder),
    r#"INSERT INTO `glyph` (`aspect`, `image`) VALUES (2, 3) ON DUPLICATE KEY UPDATE `aspect` = VALUES(`aspect`), `image` = VALUES(`image`)"#
);
assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"INSERT INTO "glyph" ("aspect", "image") VALUES (2, 3) ON CONFLICT ("id") DO UPDATE SET "aspect" = "excluded"."aspect", "image" = "excluded"."image""#
);
assert_eq!(
    query.to_string(SqliteQueryBuilder),
    r#"INSERT INTO "glyph" ("aspect", "image") VALUES (2, 3) ON CONFLICT ("id") DO UPDATE SET "aspect" = "excluded"."aspect", "image" = "excluded"."image""#
);

pub fn update_value<C>(&mut self, column_value: (C, Value)) -> &mut OnConflictwhere C: IntoIden,

Set ON CONFLICT update value

pub fn update_values<C, I>(&mut self, column_values: I) -> &mut OnConflictwhere C: IntoIden, I: IntoIterator<Item = (C, Value)>,

Set ON CONFLICT update values

Examples

use sea_query::{tests_cfg::*, *};

let query = Query::insert()
    .into_table(Glyph::Table)
    .columns([Glyph::Aspect, Glyph::Image])
    .values_panic(vec![
        2.into(),
        3.into(),
    ])
    .on_conflict(
        OnConflict::column(Glyph::Id)
            .update_values([
                (Glyph::Aspect, "04108048005887010020060000204E0180400400".into()),
                (Glyph::Image, 3.1415.into()),
            ])
            .to_owned()
    )
    .to_owned();

assert_eq!(
    query.to_string(MysqlQueryBuilder),
    r#"INSERT INTO `glyph` (`aspect`, `image`) VALUES (2, 3) ON DUPLICATE KEY UPDATE `aspect` = '04108048005887010020060000204E0180400400', `image` = 3.1415"#
);
assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"INSERT INTO "glyph" ("aspect", "image") VALUES (2, 3) ON CONFLICT ("id") DO UPDATE SET "aspect" = '04108048005887010020060000204E0180400400', "image" = 3.1415"#
);
assert_eq!(
    query.to_string(SqliteQueryBuilder),
    r#"INSERT INTO "glyph" ("aspect", "image") VALUES (2, 3) ON CONFLICT ("id") DO UPDATE SET "aspect" = '04108048005887010020060000204E0180400400', "image" = 3.1415"#
);

pub fn update_expr<C>( &mut self, column_expr: (C, SimpleExpr) ) -> &mut OnConflictwhere C: IntoIden,

Set ON CONFLICT update expr

pub fn update_exprs<C, I>(&mut self, column_exprs: I) -> &mut OnConflictwhere C: IntoIden, I: IntoIterator<Item = (C, SimpleExpr)>,

Set ON CONFLICT update exprs

Examples

use sea_query::{tests_cfg::*, *};

let query = Query::insert()
    .into_table(Glyph::Table)
    .columns([Glyph::Aspect, Glyph::Image])
    .values_panic(vec![
        2.into(),
        3.into(),
    ])
    .on_conflict(
        OnConflict::column(Glyph::Id)
            .update_expr((Glyph::Image, Expr::val(1).add(2)))
            .to_owned()
    )
    .to_owned();

assert_eq!(
    query.to_string(MysqlQueryBuilder),
    r#"INSERT INTO `glyph` (`aspect`, `image`) VALUES (2, 3) ON DUPLICATE KEY UPDATE `image` = 1 + 2"#
);
assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"INSERT INTO "glyph" ("aspect", "image") VALUES (2, 3) ON CONFLICT ("id") DO UPDATE SET "image" = 1 + 2"#
);
assert_eq!(
    query.to_string(SqliteQueryBuilder),
    r#"INSERT INTO "glyph" ("aspect", "image") VALUES (2, 3) ON CONFLICT ("id") DO UPDATE SET "image" = 1 + 2"#
);