80 lines
1.9 KiB
Rust
80 lines
1.9 KiB
Rust
use crate::{
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error::*, ActiveModelTrait, DatabaseConnection, EntityTrait, Statement, UpdateMany, UpdateOne,
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};
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use sea_query::UpdateStatement;
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use std::future::Future;
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#[derive(Clone, Debug)]
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pub struct Updater {
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query: UpdateStatement,
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}
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#[derive(Clone, Debug)]
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pub struct UpdateResult {
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pub rows_affected: u64,
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}
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impl<'a, A: 'a> UpdateOne<A>
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where
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A: ActiveModelTrait,
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{
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pub fn exec(self, db: &'a DatabaseConnection) -> impl Future<Output = Result<A, DbErr>> + 'a {
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// so that self is dropped before entering await
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exec_update_and_return_original(self.query, self.model, db)
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}
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}
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impl<'a, E> UpdateMany<E>
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where
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E: EntityTrait,
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{
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pub fn exec(
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self,
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db: &'a DatabaseConnection,
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) -> impl Future<Output = Result<UpdateResult, DbErr>> + 'a {
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// so that self is dropped before entering await
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exec_update_only(self.query, db)
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}
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}
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impl Updater {
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pub fn new(query: UpdateStatement) -> Self {
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Self { query }
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}
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pub fn exec(
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self,
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db: &DatabaseConnection,
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) -> impl Future<Output = Result<UpdateResult, DbErr>> + '_ {
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let builder = db.get_database_backend();
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exec_update(builder.build(&self.query), db)
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}
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}
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async fn exec_update_only(
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query: UpdateStatement,
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db: &DatabaseConnection,
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) -> Result<UpdateResult, DbErr> {
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Updater::new(query).exec(db).await
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}
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async fn exec_update_and_return_original<A>(
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query: UpdateStatement,
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model: A,
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db: &DatabaseConnection,
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) -> Result<A, DbErr>
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where
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A: ActiveModelTrait,
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{
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Updater::new(query).exec(db).await?;
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Ok(model)
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}
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// Only Statement impl Send
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async fn exec_update(statement: Statement, db: &DatabaseConnection) -> Result<UpdateResult, DbErr> {
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let result = db.execute(statement).await?;
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Ok(UpdateResult {
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rows_affected: result.rows_affected(),
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})
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}
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