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use std::rc::Rc; use serde_json::Value as JsonValue; use crate::{backend::QueryBuilder, types::*, expr::*, value::*, prepare::*}; /// Update existing rows in the table /// /// # Examples /// /// ``` /// use sea_query::{*, tests_cfg::*}; /// /// let query = Query::update() /// .table(Glyph::Table) /// .values(vec![ /// (Glyph::Aspect, 1.23.into()), /// (Glyph::Image, "123".into()), /// ]) /// .and_where(Expr::col(Glyph::Id).eq(1)) /// .to_owned(); /// /// assert_eq!( /// query.to_string(MysqlQueryBuilder), /// r#"UPDATE `glyph` SET `aspect` = 1.23, `image` = '123' WHERE `id` = 1"# /// ); /// assert_eq!( /// query.to_string(PostgresQueryBuilder), /// r#"UPDATE "glyph" SET "aspect" = 1.23, "image" = '123' WHERE "id" = 1"# /// ); /// assert_eq!( /// query.to_string(SqliteQueryBuilder), /// r#"UPDATE `glyph` SET `aspect` = 1.23, `image` = '123' WHERE `id` = 1"# /// ); /// ``` #[derive(Clone)] pub struct UpdateStatement { pub(crate) table: Option<Box<TableRef>>, pub(crate) values: Vec<(String, Box<SimpleExpr>)>, pub(crate) wherei: Option<Box<SimpleExpr>>, pub(crate) orders: Vec<OrderExpr>, pub(crate) limit: Option<Value>, } impl Default for UpdateStatement { fn default() -> Self { Self::new() } } impl UpdateStatement { /// Construct a new [`UpdateStatement`] pub fn new() -> Self { Self { table: None, values: Vec::new(), wherei: None, orders: Vec::new(), limit: None, } } /// Specify which table to update. /// /// # Examples /// /// See [`UpdateStatement::values`] #[allow(clippy::wrong_self_convention)] pub fn table<T: 'static>(&mut self, table: T) -> &mut Self where T: Iden { self.table_dyn(Rc::new(table)) } /// Specify which table to update, variation of [`UpdateStatement::table`]. /// /// # Examples /// /// See [`UpdateStatement::values`] #[allow(clippy::wrong_self_convention)] pub fn table_dyn(&mut self, table: Rc<dyn Iden>) -> &mut Self { self.table = Some(Box::new(TableRef::Table(table))); self } #[deprecated( since = "0.5.0", note = "Please use the UpdateStatement::table function instead" )] #[allow(clippy::wrong_self_convention)] pub fn into_table<T: 'static>(&mut self, table: T) -> &mut Self where T: Iden { self.table(table) } #[deprecated( since = "0.5.0", note = "Please use the UpdateStatement::table_dyn function instead" )] #[allow(clippy::wrong_self_convention)] pub fn into_table_dyn(&mut self, table: Rc<dyn Iden>) -> &mut Self { self.table_dyn(table) } /// Update column value by [`SimpleExpr`]. /// /// # Examples /// /// ``` /// use sea_query::{*, tests_cfg::*}; /// /// let query = Query::update() /// .table(Glyph::Table) /// .value_expr(Glyph::Aspect, Expr::cust("60 * 24 * 24")) /// .values(vec![ /// (Glyph::Image, "24B0E11951B03B07F8300FD003983F03F0780060".into()), /// ]) /// .and_where(Expr::col(Glyph::Id).eq(1)) /// .to_owned(); /// /// assert_eq!( /// query.to_string(MysqlQueryBuilder), /// r#"UPDATE `glyph` SET `aspect` = 60 * 24 * 24, `image` = '24B0E11951B03B07F8300FD003983F03F0780060' WHERE `id` = 1"# /// ); /// assert_eq!( /// query.to_string(PostgresQueryBuilder), /// r#"UPDATE "glyph" SET "aspect" = 60 * 24 * 24, "image" = '24B0E11951B03B07F8300FD003983F03F0780060' WHERE "id" = 1"# /// ); /// assert_eq!( /// query.to_string(SqliteQueryBuilder), /// r#"UPDATE `glyph` SET `aspect` = 60 * 24 * 24, `image` = '24B0E11951B03B07F8300FD003983F03F0780060' WHERE `id` = 1"# /// ); /// ``` pub fn value_expr<T: 'static>(&mut self, col: T, exp: SimpleExpr) -> &mut Self where T: Iden { self.value_expr_dyn(Rc::new(col), exp) } /// Update column value by [`SimpleExpr`], variation of [`UpdateStatement::value_expr`]. pub fn value_expr_dyn(&mut self, col: Rc<dyn Iden>, exp: SimpleExpr) -> &mut Self { self.push_boxed_value(col.to_string(), exp); self } /// Update column values by [`SimpleExpr`]. /// /// # Examples /// /// ``` /// use sea_query::{*, tests_cfg::*}; /// /// let query = Query::update() /// .table(Glyph::Table) /// .json(json!({ /// "aspect": 2.1345, /// "image": "235m", /// })) /// .and_where(Expr::col(Glyph::Id).eq(1)) /// .to_owned(); /// /// assert_eq!( /// query.to_string(MysqlQueryBuilder), /// r#"UPDATE `glyph` SET `aspect` = 2.1345, `image` = '235m' WHERE `id` = 1"# /// ); /// assert_eq!( /// query.to_string(PostgresQueryBuilder), /// r#"UPDATE "glyph" SET "aspect" = 2.1345, "image" = '235m' WHERE "id" = 1"# /// ); /// assert_eq!( /// query.to_string(SqliteQueryBuilder), /// r#"UPDATE `glyph` SET `aspect` = 2.1345, `image` = '235m' WHERE `id` = 1"# /// ); /// ``` pub fn json(&mut self, values: JsonValue) -> &mut Self { match values { JsonValue::Object(_) => (), _ => unimplemented!(), } for (k, v) in values.as_object().unwrap() { let v = json_value_to_sea_value(v); self.push_boxed_value(k.into(), SimpleExpr::Value(v)); } self } /// Update column values. /// /// # Examples /// /// ``` /// use sea_query::{*, tests_cfg::*}; /// /// let query = Query::update() /// .table(Glyph::Table) /// .values(vec![ /// (Glyph::Aspect, 2.1345.into()), /// (Glyph::Image, "235m".into()), /// ]) /// .and_where(Expr::col(Glyph::Id).eq(1)) /// .to_owned(); /// /// assert_eq!( /// query.to_string(MysqlQueryBuilder), /// r#"UPDATE `glyph` SET `aspect` = 2.1345, `image` = '235m' WHERE `id` = 1"# /// ); /// assert_eq!( /// query.to_string(PostgresQueryBuilder), /// r#"UPDATE "glyph" SET "aspect" = 2.1345, "image" = '235m' WHERE "id" = 1"# /// ); /// assert_eq!( /// query.to_string(SqliteQueryBuilder), /// r#"UPDATE `glyph` SET `aspect` = 2.1345, `image` = '235m' WHERE `id` = 1"# /// ); /// ``` pub fn values<T: 'static>(&mut self, values: Vec<(T, Value)>) -> &mut Self where T: Iden { self.values_dyn(values.into_iter().map(|(k, v)| (Rc::new(k) as Rc<dyn Iden>, v)).collect()) } /// Update column values, variation of [`UpdateStatement::values`]. pub fn values_dyn(&mut self, values: Vec<(Rc<dyn Iden>, Value)>) -> &mut Self { for (k, v) in values.into_iter() { self.push_boxed_value(k.to_string(), SimpleExpr::Value(v)); } self } /// Update column values. /// /// # Examples /// /// ``` /// use sea_query::{*, tests_cfg::*}; /// /// let query = Query::update() /// .table(Glyph::Table) /// .value(Glyph::Aspect, 2.1345.into()) /// .value(Glyph::Image, "235m".into()) /// .and_where(Expr::col(Glyph::Id).eq(1)) /// .to_owned(); /// /// assert_eq!( /// query.to_string(MysqlQueryBuilder), /// r#"UPDATE `glyph` SET `aspect` = 2.1345, `image` = '235m' WHERE `id` = 1"# /// ); /// assert_eq!( /// query.to_string(PostgresQueryBuilder), /// r#"UPDATE "glyph" SET "aspect" = 2.1345, "image" = '235m' WHERE "id" = 1"# /// ); /// assert_eq!( /// query.to_string(SqliteQueryBuilder), /// r#"UPDATE `glyph` SET `aspect` = 2.1345, `image` = '235m' WHERE `id` = 1"# /// ); /// ``` pub fn value<T: 'static>(&mut self, col: T, value: Value) -> &mut Self where T: Iden { self.value_dyn(Rc::new(col) as Rc<dyn Iden>, value) } /// Update column values, variation of [`UpdateStatement::value`]. pub fn value_dyn(&mut self, col: Rc<dyn Iden>, value: Value) -> &mut Self { self.push_boxed_value(col.to_string(), SimpleExpr::Value(value)); self } fn push_boxed_value(&mut self, k: String, v: SimpleExpr) -> &mut Self { self.values.push((k, Box::new(v))); self } /// And where condition. /// /// # Examples /// /// ``` /// use sea_query::{*, tests_cfg::*}; /// /// let query = Query::update() /// .table(Glyph::Table) /// .values(vec![ /// (Glyph::Aspect, 2.1345.into()), /// (Glyph::Image, "235m".into()), /// ]) /// .and_where(Expr::col(Glyph::Id).gt(1)) /// .and_where(Expr::col(Glyph::Id).lt(3)) /// .to_owned(); /// /// assert_eq!( /// query.to_string(MysqlQueryBuilder), /// r#"UPDATE `glyph` SET `aspect` = 2.1345, `image` = '235m' WHERE (`id` > 1) AND (`id` < 3)"# /// ); /// assert_eq!( /// query.to_string(PostgresQueryBuilder), /// r#"UPDATE "glyph" SET "aspect" = 2.1345, "image" = '235m' WHERE ("id" > 1) AND ("id" < 3)"# /// ); /// assert_eq!( /// query.to_string(SqliteQueryBuilder), /// r#"UPDATE `glyph` SET `aspect` = 2.1345, `image` = '235m' WHERE (`id` > 1) AND (`id` < 3)"# /// ); /// ``` pub fn and_where(&mut self, other: SimpleExpr) -> &mut Self { self.and_or_where(BinOper::And, other) } /// Or where condition. /// /// # Examples /// /// ``` /// use sea_query::{*, tests_cfg::*}; /// /// let query = Query::update() /// .table(Glyph::Table) /// .values(vec![ /// (Glyph::Aspect, 2.1345.into()), /// (Glyph::Image, "235m".into()), /// ]) /// .or_where(Expr::col(Glyph::Aspect).lt(1)) /// .or_where(Expr::col(Glyph::Aspect).gt(3)) /// .to_owned(); /// /// assert_eq!( /// query.to_string(MysqlQueryBuilder), /// r#"UPDATE `glyph` SET `aspect` = 2.1345, `image` = '235m' WHERE (`aspect` < 1) OR (`aspect` > 3)"# /// ); /// assert_eq!( /// query.to_string(PostgresQueryBuilder), /// r#"UPDATE "glyph" SET "aspect" = 2.1345, "image" = '235m' WHERE ("aspect" < 1) OR ("aspect" > 3)"# /// ); /// assert_eq!( /// query.to_string(SqliteQueryBuilder), /// r#"UPDATE `glyph` SET `aspect` = 2.1345, `image` = '235m' WHERE (`aspect` < 1) OR (`aspect` > 3)"# /// ); /// ``` pub fn or_where(&mut self, other: SimpleExpr) -> &mut Self { self.and_or_where(BinOper::Or, other) } fn and_or_where(&mut self, bopr: BinOper, right: SimpleExpr) -> &mut Self { self.wherei = Self::merge_expr( self.wherei.take(), match bopr { BinOper::And => BinOper::And, BinOper::Or => BinOper::Or, _ => panic!("not allow"), }, right ); self } fn merge_expr(left: Option<Box<SimpleExpr>>, bopr: BinOper, right: SimpleExpr) -> Option<Box<SimpleExpr>> { Some(Box::new(match left { Some(left) => SimpleExpr::Binary( left, bopr, Box::new(right) ), None => right, })) } /// Order by column. pub fn order_by<T: 'static>(&mut self, col: T, order: Order) -> &mut Self where T: Iden { self.order_by_dyn(Rc::new(col), order) } /// Order by column, variation of [`UpdateStatement::order_by`]. pub fn order_by_dyn(&mut self, col: Rc<dyn Iden>, order: Order) -> &mut Self { self.orders.push(OrderExpr { expr: SimpleExpr::Column(col), order, }); self } /// Order by column with table name prefix. pub fn order_by_tbl<T: 'static, C: 'static> (&mut self, table: T, col: C, order: Order) -> &mut Self where T: Iden, C: Iden { self.order_by_tbl_dyn(Rc::new(table), Rc::new(col), order) } /// Order by column with table name prefix, variation of [`UpdateStatement::order_by_tbl`]. pub fn order_by_tbl_dyn(&mut self, table: Rc<dyn Iden>, col: Rc<dyn Iden>, order: Order) -> &mut Self { self.orders.push(OrderExpr { expr: SimpleExpr::TableColumn(table, col), order, }); self } /// Order by [`SimpleExpr`]. pub fn order_by_expr(&mut self, expr: SimpleExpr, order: Order) -> &mut Self { self.orders.push(OrderExpr { expr, order, }); self } /// Order by custom string. pub fn order_by_customs<T: 'static>(&mut self, cols: Vec<(T, Order)>) -> &mut Self where T: ToString { let mut orders = cols.into_iter().map( |(c, order)| OrderExpr { expr: SimpleExpr::Custom(c.to_string()), order, }).collect(); self.orders.append(&mut orders); self } /// Order by columns. pub fn order_by_columns<T: 'static>(&mut self, cols: Vec<(T, Order)>) -> &mut Self where T: Iden { self.order_by_columns_dyn(cols.into_iter().map( |(c, order)| (Rc::new(c) as Rc<dyn Iden>, order) ).collect()) } /// Order by columns, variation of [`UpdateStatement::order_by_columns`]. pub fn order_by_columns_dyn(&mut self, cols: Vec<(Rc<dyn Iden>, Order)>) -> &mut Self { let mut orders = cols.into_iter().map( |(c, order)| OrderExpr { expr: SimpleExpr::Column(c), order, }).collect(); self.orders.append(&mut orders); self } /// Order by columns with table prefix. pub fn order_by_table_columns<T: 'static, C: 'static> (&mut self, cols: Vec<(T, C, Order)>) -> &mut Self where T: Iden, C: Iden { self.order_by_table_columns_dyn(cols.into_iter().map( |(t, c, order)| (Rc::new(t) as Rc<dyn Iden>, Rc::new(c) as Rc<dyn Iden>, order) ).collect()) } /// Order by columns with table prefix, variation of [`UpdateStatement::order_by_columns`]. #[allow(clippy::type_complexity)] pub fn order_by_table_columns_dyn(&mut self, cols: Vec<(Rc<dyn Iden>, Rc<dyn Iden>, Order)>) -> &mut Self { let mut orders = cols.into_iter().map( |(t, c, order)| OrderExpr { expr: SimpleExpr::TableColumn(t, c), order, }).collect(); self.orders.append(&mut orders); self } /// Limit number of updated rows. pub fn limit(&mut self, limit: u64) -> &mut Self { self.limit = Some(Value::BigUnsigned(limit)); self } /// Build corresponding SQL statement for certain database backend and collect query parameters /// /// # Examples /// /// ``` /// use sea_query::{*, tests_cfg::*}; /// /// let query = Query::update() /// .table(Glyph::Table) /// .values(vec![ /// (Glyph::Aspect, 2.1345.into()), /// (Glyph::Image, "235m".into()), /// ]) /// .and_where(Expr::col(Glyph::Id).eq(1)) /// .to_owned(); /// /// assert_eq!( /// query.to_string(MysqlQueryBuilder), /// r#"UPDATE `glyph` SET `aspect` = 2.1345, `image` = '235m' WHERE `id` = 1"# /// ); /// /// let mut params = Vec::new(); /// let mut collector = |v| params.push(v); /// /// assert_eq!( /// query.build_collect(MysqlQueryBuilder, &mut collector), /// r#"UPDATE `glyph` SET `aspect` = ?, `image` = ? WHERE `id` = ?"# /// ); /// assert_eq!( /// params, /// vec![ /// Value::Double(2.1345), /// Value::String(Box::new(String::from("235m"))), /// Value::Int(1), /// ] /// ); /// ``` pub fn build_collect<T: QueryBuilder>(&self, query_builder: T, collector: &mut dyn FnMut(Value)) -> String { let mut sql = SqlWriter::new(); query_builder.prepare_update_statement(self, &mut sql, collector); sql.result() } /// Build corresponding SQL statement for certain database backend and collect query parameters pub fn build_collect_any(&self, query_builder: &dyn QueryBuilder, collector: &mut dyn FnMut(Value)) -> String { let mut sql = SqlWriter::new(); query_builder.prepare_update_statement(self, &mut sql, collector); sql.result() } /// Build corresponding SQL statement for certain database backend and collect query parameters into a vector /// /// # Examples /// /// ``` /// use sea_query::{*, tests_cfg::*}; /// /// let (query, params) = Query::update() /// .table(Glyph::Table) /// .values(vec![ /// (Glyph::Aspect, 2.1345.into()), /// (Glyph::Image, "235m".into()), /// ]) /// .and_where(Expr::col(Glyph::Id).eq(1)) /// .build(MysqlQueryBuilder); /// /// assert_eq!( /// query, /// r#"UPDATE `glyph` SET `aspect` = ?, `image` = ? WHERE `id` = ?"# /// ); /// assert_eq!( /// params, /// Values(vec![ /// Value::Double(2.1345), /// Value::String(Box::new(String::from("235m"))), /// Value::Int(1), /// ]) /// ); /// ``` pub fn build<T: QueryBuilder>(&self, query_builder: T) -> (String, Values) { let mut values = Vec::new(); let mut collector = |v| values.push(v); let sql = self.build_collect(query_builder, &mut collector); (sql, Values(values)) } /// Build corresponding SQL statement for certain database backend and collect query parameters into a vector pub fn build_any(&self, query_builder: &dyn QueryBuilder) -> (String, Values) { let mut values = Vec::new(); let mut collector = |v| values.push(v); let sql = self.build_collect_any(query_builder, &mut collector); (sql, Values(values)) } /// Build corresponding SQL statement for certain database backend and return SQL string /// /// # Examples /// /// ``` /// use sea_query::{*, tests_cfg::*}; /// /// let query = Query::update() /// .table(Glyph::Table) /// .values(vec![ /// (Glyph::Aspect, 2.1345.into()), /// (Glyph::Image, "235m".into()), /// ]) /// .and_where(Expr::col(Glyph::Id).eq(1)) /// .to_string(MysqlQueryBuilder); /// /// assert_eq!( /// query, /// r#"UPDATE `glyph` SET `aspect` = 2.1345, `image` = '235m' WHERE `id` = 1"# /// ); /// ``` pub fn to_string<T: QueryBuilder>(&self, query_builder: T) -> String { let (sql, values) = self.build_any(&query_builder); inject_parameters(&sql, values.0, &query_builder) } }