sea-query 0.26.2

🌊 A dynamic query builder for MySQL, Postgres and SQLite
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137

use super::*;
use crate::extension::postgres::*;

impl TypeBuilder for PostgresQueryBuilder {
    fn prepare_type_create_statement(
        &self,
        create: &TypeCreateStatement,
        sql: &mut SqlWriter,
        collector: &mut dyn FnMut(Value),
    ) {
        write!(sql, "CREATE TYPE ").unwrap();

        if let Some(name) = &create.name {
            name.prepare(sql, self.quote());
        }

        if let Some(as_type) = &create.as_type {
            write!(sql, " AS ").unwrap();
            self.prepare_create_as_type(as_type, sql);
        }

        if !create.values.is_empty() {
            write!(sql, " (").unwrap();

            for (count, val) in create.values.iter().enumerate() {
                if count > 0 {
                    write!(sql, ", ").unwrap();
                }
                self.prepare_value(&val.to_string().into(), sql, collector);
            }

            write!(sql, ")").unwrap();
        }
    }

    fn prepare_type_drop_statement(
        &self,
        drop: &TypeDropStatement,
        sql: &mut SqlWriter,
        _collector: &mut dyn FnMut(Value),
    ) {
        write!(sql, "DROP TYPE ").unwrap();

        if drop.if_exists {
            write!(sql, "IF EXISTS ").unwrap();
        }

        for name in drop.names.iter() {
            name.prepare(sql, self.quote());
        }

        if let Some(option) = &drop.option {
            write!(sql, " ").unwrap();
            self.prepare_drop_type_opt(option, sql);
        }
    }

    fn prepare_type_alter_statement(
        &self,
        alter: &TypeAlterStatement,
        sql: &mut SqlWriter,
        collector: &mut dyn FnMut(Value),
    ) {
        write!(sql, "ALTER TYPE ").unwrap();

        if let Some(name) = &alter.name {
            name.prepare(sql, self.quote());
        }

        if let Some(option) = &alter.option {
            self.prepare_alter_type_opt(option, sql, collector)
        }
    }
}

impl PostgresQueryBuilder {
    fn prepare_create_as_type(&self, as_type: &TypeAs, sql: &mut SqlWriter) {
        write!(
            sql,
            "{}",
            match as_type {
                TypeAs::Enum => "ENUM",
            }
        )
        .unwrap()
    }

    fn prepare_drop_type_opt(&self, opt: &TypeDropOpt, sql: &mut SqlWriter) {
        write!(
            sql,
            "{}",
            match opt {
                TypeDropOpt::Cascade => "CASCADE",
                TypeDropOpt::Restrict => "RESTRICT",
            }
        )
        .unwrap()
    }

    fn prepare_alter_type_opt(
        &self,
        opt: &TypeAlterOpt,
        sql: &mut SqlWriter,
        collector: &mut dyn FnMut(Value),
    ) {
        match opt {
            TypeAlterOpt::Add(value, placement) => {
                write!(sql, " ADD VALUE ").unwrap();
                match placement {
                    Some(add_option) => match add_option {
                        TypeAlterAddOpt::Before(before_value) => {
                            self.prepare_value(&value.to_string().into(), sql, collector);
                            write!(sql, " BEFORE ").unwrap();
                            self.prepare_value(&before_value.to_string().into(), sql, collector);
                        }
                        TypeAlterAddOpt::After(after_value) => {
                            self.prepare_value(&value.to_string().into(), sql, collector);
                            write!(sql, " AFTER ").unwrap();
                            self.prepare_value(&after_value.to_string().into(), sql, collector);
                        }
                    },
                    None => self.prepare_value(&value.to_string().into(), sql, collector),
                }
            }
            TypeAlterOpt::Rename(new_name) => {
                write!(sql, " RENAME TO ").unwrap();
                self.prepare_value(&new_name.to_string().into(), sql, collector);
            }
            TypeAlterOpt::RenameValue(existing, new_name) => {
                write!(sql, " RENAME VALUE ").unwrap();
                self.prepare_value(&existing.to_string().into(), sql, collector);
                write!(sql, " TO ").unwrap();
                self.prepare_value(&new_name.to_string().into(), sql, collector);
            }
        }
    }
}