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
use {
crate::ValueType,
serde::{Deserialize, Serialize},
sqlparser::{
ast::{ColumnDef, ColumnOption, ColumnOptionDef, Expr, Ident},
dialect::keywords::Keyword,
tokenizer::{Token, Word},
},
std::fmt::Debug,
};
#[derive(Default, Clone, Serialize, Deserialize, Debug)]
pub struct Column {
pub name: String,
pub data_type: ValueType,
pub default: Option<ValueDefault>,
pub is_nullable: bool,
pub is_unique: bool,
}
impl From<&ColumnDef> for Column {
fn from(column_def: &ColumnDef) -> Self {
column_def.clone().into()
}
}
impl From<ColumnDef> for Column {
fn from(column_def: ColumnDef) -> Self {
let ColumnDef {
name: Ident { value: name, .. },
data_type,
options,
..
} = column_def;
let is_nullable = options
.iter()
.any(|ColumnOptionDef { option, .. }| matches!(option, ColumnOption::Null));
let is_unique = options
.iter()
.any(|ColumnOptionDef { option, .. }| matches!(option, ColumnOption::Unique { .. }));
let default = options
.iter()
.find_map(|ColumnOptionDef { option, .. }| match option {
ColumnOption::Default(expr) => Some(ValueDefault::Recipe(expr.clone())),
ColumnOption::DialectSpecific(tokens)
if matches!(
tokens[..],
[
Token::Word(Word {
keyword: Keyword::AUTO_INCREMENT,
..
}),
..
]
) =>
{
Some(ValueDefault::AutoIncrement(1))
}
_ => None,
});
Self {
name,
data_type: data_type.into(),
default,
is_nullable,
is_unique,
}
}
}
#[derive(Clone, Serialize, Deserialize, Debug)]
pub enum ValueDefault {
Recipe(Expr),
AutoIncrement(u64),
}