easy_sqlx_core/sql/builder/
delete_builder.rs

1use crate::sql::{
2    dialects::{
3        condition::{Condition, Where, WhereAppend},
4        schema::{self, schema::Schema},
5    },
6    schema::table::TableSchema,
7};
8
9use super::builder::ExecuteBuilder;
10use sqlx::Database;
11
12#[derive(Debug)]
13pub struct DeleteBuilder<'a> {
14    table: TableSchema,
15    default_schema: &'a str,
16    wh: Option<Where>,
17}
18
19impl<'a> DeleteBuilder<'a> {
20    pub fn new(table: TableSchema) -> Self {
21        Self {
22            table,
23            default_schema: "",
24            wh: None,
25        }
26    }
27
28    pub fn with_default_schema(mut self, schema: &'a str) -> Self {
29        self.default_schema = schema;
30        self
31    }
32}
33impl<'a> WhereAppend<Condition> for DeleteBuilder<'a> {
34    fn and(mut self, cond: Condition) -> Self {
35        if let Some(w) = self.wh {
36            self.wh = Some(w.and(cond));
37        } else {
38            self.wh = Some(Where::new(cond));
39        }
40        self
41    }
42
43    fn or(mut self, cond: Condition) -> Self {
44        if let Some(w) = self.wh {
45            self.wh = Some(w.or(cond));
46        } else {
47            self.wh = Some(Where::new(cond));
48        }
49        self
50    }
51}
52
53impl<'a> WhereAppend<Where> for DeleteBuilder<'a> {
54    fn and(mut self, wh: Where) -> Self {
55        if let Some(w) = self.wh {
56            self.wh = Some(w.and(wh));
57        } else {
58            self.wh = Some(wh);
59        }
60        self
61    }
62
63    fn or(mut self, wh: Where) -> Self {
64        if let Some(w) = self.wh {
65            self.wh = Some(w.or(wh));
66        } else {
67            self.wh = Some(wh);
68        }
69        self
70    }
71}
72
73#[cfg(feature = "postgres")]
74use sqlx::Postgres;
75
76impl<'a> ExecuteBuilder for DeleteBuilder<'a> {
77    #[cfg(feature = "postgres")]
78    type DB = Postgres;
79
80    async fn execute<C>(
81        &self,
82        conn: &mut C,
83    ) -> Result<<Self::DB as sqlx::Database>::QueryResult, sqlx::Error>
84    where
85        for<'e> &'e mut C: sqlx::Executor<'e, Database = Self::DB>,
86    {
87        let schema = schema::new(self.default_schema.to_string());
88
89        let sql = schema.sql_delete(&self.table, self.wh.clone(), false);
90
91        let mut query: sqlx::query::Query<'_, Self::DB, <Self::DB as Database>::Arguments<'_>> =
92            sqlx::query::<Self::DB>(&sql);
93
94        if let Some(w) = &self.wh {
95            query = w.bind_to_query(query);
96        }
97
98        let result = query.execute(conn).await.map_err(|err| {
99            tracing::error!(
100                "easy-sqlx: {} [{}]\n{:?}",
101                sql,
102                if let Some(w) = &self.wh {
103                    w.list_params()
104                } else {
105                    "".to_string()
106                },
107                err
108            );
109            err
110        })?;
111        #[cfg(feature = "logsql")]
112        tracing::info!(
113            "easy-sqlx: {sql} [{}]\nrows_affected: {}",
114            if let Some(w) = &self.wh {
115                w.list_params()
116            } else {
117                "".to_string()
118            },
119            result.rows_affected()
120        );
121        Ok(result)
122    }
123
124    #[cfg(feature = "postgres")]
125    async fn execute_return<'e, 'c: 'e, C, O>(&self, executor: C) -> sqlx::Result<Vec<O>>
126    where
127        C: 'e + sqlx::Executor<'c, Database = Self::DB>,
128        O: 'e,
129        for<'r> O: sqlx::FromRow<'r, <Self::DB as Database>::Row>,
130        O: std::marker::Send,
131        O: Unpin,
132    {
133        let schema = schema::new(self.default_schema.to_string());
134
135        let sql = schema.sql_delete(&self.table, self.wh.clone(), true);
136
137        let mut query = sqlx::query_as::<Self::DB, O>(&sql);
138
139        if let Some(w) = &self.wh {
140            query = w.bind_to_query_as(query);
141        }
142
143        let result = query.fetch_all(executor).await.map_err(|err| {
144            tracing::error!(
145                "easy-sqlx: {} [{}]\n{:?}",
146                sql,
147                if let Some(w) = &self.wh {
148                    w.list_params()
149                } else {
150                    "".to_string()
151                },
152                err
153            );
154            err
155        });
156        #[cfg(feature = "logsql")]
157        tracing::info!(
158            "easy-sqlx: {sql} [{}]",
159            if let Some(w) = &self.wh {
160                w.list_params()
161            } else {
162                "".to_string()
163            }
164        );
165        result
166    }
167}
easy_sqlx_core/sql/builder/delete_builder.rs

easy_sqlx_core/sql/builder/
delete_builder.rs
