sea_query/backend/sqlite/
index.rs

1use super::*;
2
3impl IndexBuilder for SqliteQueryBuilder {
4    fn prepare_index_create_statement(
5        &self,
6        create: &IndexCreateStatement,
7        sql: &mut dyn SqlWriter,
8    ) {
9        sql.write_str("CREATE ").unwrap();
10        self.prepare_index_prefix(create, sql);
11        sql.write_str("INDEX ").unwrap();
12
13        if create.if_not_exists {
14            sql.write_str("IF NOT EXISTS ").unwrap();
15        }
16
17        if let Some(name) = &create.index.name {
18            sql.write_char(self.quote().left()).unwrap();
19            sql.write_str(name).unwrap();
20            sql.write_char(self.quote().right()).unwrap();
21        }
22
23        sql.write_str(" ON ").unwrap();
24        if let Some(table) = &create.table {
25            self.prepare_table_ref_index_stmt(table, sql);
26        }
27
28        sql.write_str(" ").unwrap();
29        self.prepare_index_columns(&create.index.columns, sql);
30        self.prepare_filter(&create.r#where, sql);
31    }
32
33    fn prepare_table_ref_index_stmt(&self, table_ref: &TableRef, sql: &mut dyn SqlWriter) {
34        match table_ref {
35            // Support only "naked" table names with no schema or alias.
36            TableRef::Table(TableName(None, _), None) => {
37                self.prepare_table_ref_iden(table_ref, sql)
38            }
39            _ => panic!("Not supported"),
40        }
41    }
42
43    fn prepare_index_drop_statement(&self, drop: &IndexDropStatement, sql: &mut dyn SqlWriter) {
44        sql.write_str("DROP INDEX ").unwrap();
45
46        if drop.if_exists {
47            sql.write_str("IF EXISTS ").unwrap();
48        }
49
50        if let Some(name) = &drop.index.name {
51            sql.write_char(self.quote().left()).unwrap();
52            sql.write_str(name).unwrap();
53            sql.write_char(self.quote().right()).unwrap();
54        }
55    }
56
57    fn prepare_index_prefix(&self, create: &IndexCreateStatement, sql: &mut dyn SqlWriter) {
58        if create.primary {
59            sql.write_str("PRIMARY KEY ").unwrap();
60        } else if create.unique {
61            sql.write_str("UNIQUE ").unwrap();
62        }
63    }
64
65    fn write_column_index_prefix(&self, _col_prefix: &Option<u32>, _sql: &mut dyn SqlWriter) {}
66
67    fn prepare_filter(&self, condition: &ConditionHolder, sql: &mut dyn SqlWriter) {
68        self.prepare_condition(condition, "WHERE", sql);
69    }
70}
sea_query/backend/sqlite/index.rs

sea_query/backend/sqlite/
index.rs
