sea_query/backend/postgres/
types.rs

1use super::*;
2use crate::extension::postgres::*;
3
4impl TypeBuilder for PostgresQueryBuilder {
5    fn prepare_type_create_statement(
6        &self,
7        create: &TypeCreateStatement,
8        sql: &mut impl SqlWriter,
9    ) {
10        sql.write_str("CREATE TYPE ").unwrap();
11
12        if let Some(name) = &create.name {
13            self.prepare_type_ref(name, sql);
14        }
15
16        if let Some(as_type) = &create.as_type {
17            sql.write_str(" AS ").unwrap();
18            self.prepare_create_as_type(as_type, sql);
19        }
20
21        if !create.values.is_empty() {
22            sql.write_str(" (").unwrap();
23
24            let mut vals = create.values.iter();
25            join_io!(
26                vals,
27                val,
28                join {
29                    sql.write_str(", ").unwrap();
30                },
31                do {
32                    self.prepare_value(val.to_string().into(), sql);
33                }
34            );
35
36            sql.write_str(")").unwrap();
37        }
38    }
39
40    fn prepare_type_drop_statement(&self, drop: &TypeDropStatement, sql: &mut impl SqlWriter) {
41        sql.write_str("DROP TYPE ").unwrap();
42
43        if drop.if_exists {
44            sql.write_str("IF EXISTS ").unwrap();
45        }
46
47        let mut names = drop.names.iter();
48
49        join_io!(
50            names,
51            name,
52            join {
53                sql.write_str(", ").unwrap();
54            },
55            do {
56                self.prepare_type_ref(name, sql);
57            }
58        );
59
60        if let Some(option) = &drop.option {
61            sql.write_str(" ").unwrap();
62            self.prepare_drop_type_opt(option, sql);
63        }
64    }
65
66    fn prepare_type_alter_statement(&self, alter: &TypeAlterStatement, sql: &mut impl SqlWriter) {
67        sql.write_str("ALTER TYPE ").unwrap();
68
69        if let Some(name) = &alter.name {
70            self.prepare_type_ref(name, sql);
71        }
72
73        if let Some(option) = &alter.option {
74            self.prepare_alter_type_opt(option, sql)
75        }
76    }
77}
78
79impl PostgresQueryBuilder {
80    fn prepare_create_as_type(&self, as_type: &TypeAs, sql: &mut impl SqlWriter) {
81        sql.write_str(match as_type {
82            TypeAs::Enum => "ENUM",
83        })
84        .unwrap();
85    }
86
87    fn prepare_drop_type_opt(&self, opt: &TypeDropOpt, sql: &mut impl SqlWriter) {
88        sql.write_str(match opt {
89            TypeDropOpt::Cascade => "CASCADE",
90            TypeDropOpt::Restrict => "RESTRICT",
91        })
92        .unwrap();
93    }
94
95    fn prepare_alter_type_opt(&self, opt: &TypeAlterOpt, sql: &mut impl SqlWriter) {
96        match opt {
97            TypeAlterOpt::Add {
98                value,
99                placement,
100                if_not_exists,
101            } => {
102                sql.write_str(" ADD VALUE ").unwrap();
103                if *if_not_exists {
104                    sql.write_str("IF NOT EXISTS ").unwrap();
105                }
106                self.prepare_value(value.to_string().into(), sql);
107                if let Some(add_option) = placement {
108                    match add_option {
109                        TypeAlterAddOpt::Before(before_value) => {
110                            sql.write_str(" BEFORE ").unwrap();
111                            self.prepare_value(before_value.to_string().into(), sql);
112                        }
113                        TypeAlterAddOpt::After(after_value) => {
114                            sql.write_str(" AFTER ").unwrap();
115                            self.prepare_value(after_value.to_string().into(), sql);
116                        }
117                    }
118                }
119            }
120            TypeAlterOpt::Rename(new_name) => {
121                sql.write_str(" RENAME TO ").unwrap();
122                self.prepare_iden(new_name, sql);
123            }
124            TypeAlterOpt::RenameValue(existing, new_name) => {
125                sql.write_str(" RENAME VALUE ").unwrap();
126                self.prepare_value(existing.to_string().into(), sql);
127                sql.write_str(" TO ").unwrap();
128                self.prepare_value(new_name.to_string().into(), sql);
129            }
130        }
131    }
132}
sea_query/backend/postgres/types.rs

sea_query/backend/postgres/
types.rs
