sqlx_core_oldapi/mysql/
statement.rs

1use super::MySqlColumn;
2use crate::column::ColumnIndex;
3use crate::error::Error;
4use crate::ext::ustr::UStr;
5use crate::mysql::{MySql, MySqlArguments, MySqlTypeInfo};
6use crate::statement::Statement;
7use crate::HashMap;
8use either::Either;
9use std::borrow::Cow;
10use std::sync::Arc;
11
12#[derive(Debug, Clone)]
13pub struct MySqlStatement<'q> {
14    pub(crate) sql: Cow<'q, str>,
15    pub(crate) metadata: MySqlStatementMetadata,
16}
17
18#[derive(Debug, Default, Clone)]
19pub(crate) struct MySqlStatementMetadata {
20    pub(crate) columns: Arc<Vec<MySqlColumn>>,
21    pub(crate) column_names: Arc<HashMap<UStr, usize>>,
22    pub(crate) parameters: usize,
23}
24
25impl<'q> Statement<'q> for MySqlStatement<'q> {
26    type Database = MySql;
27
28    fn to_owned(&self) -> MySqlStatement<'static> {
29        MySqlStatement::<'static> {
30            sql: Cow::Owned(self.sql.clone().into_owned()),
31            metadata: self.metadata.clone(),
32        }
33    }
34
35    fn sql(&self) -> &str {
36        &self.sql
37    }
38
39    fn parameters(&self) -> Option<Either<&[MySqlTypeInfo], usize>> {
40        Some(Either::Right(self.metadata.parameters))
41    }
42
43    fn columns(&self) -> &[MySqlColumn] {
44        &self.metadata.columns
45    }
46
47    impl_statement_query!(MySqlArguments);
48}
49
50impl ColumnIndex<MySqlStatement<'_>> for &'_ str {
51    fn index(&self, statement: &MySqlStatement<'_>) -> Result<usize, Error> {
52        statement
53            .metadata
54            .column_names
55            .get(*self)
56            .ok_or_else(|| Error::ColumnNotFound((*self).into()))
57            .map(|v| *v)
58    }
59}
60
61#[cfg(feature = "any")]
62impl<'q> From<MySqlStatement<'q>> for crate::any::AnyStatement<'q> {
63    #[inline]
64    fn from(statement: MySqlStatement<'q>) -> Self {
65        crate::any::AnyStatement::<'q> {
66            columns: statement
67                .metadata
68                .columns
69                .iter()
70                .map(|col| col.clone().into())
71                .collect(),
72            column_names: statement.metadata.column_names,
73            parameters: Some(Either::Right(statement.metadata.parameters)),
74            sql: statement.sql,
75        }
76    }
77}
sqlx_core_oldapi/mysql/statement.rs

sqlx_core_oldapi/mysql/
statement.rs
