easy-sql 0.101.1

Macro-first SQL toolkit with compile-time checked queries, optional migrations on top of sqlx.
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
138
139
140

use anyhow::Context;
use easy_macros::{always_context, context};
use sqlx::Executor;

/// Current Driver
type CDriver = super::Postgres;

use crate::{
    Output,
    markers::ToConvertSingle,
    traits::{DriverArguments, InternalDriver, ToConvert},
};

type Row = sqlx::postgres::PgRow;

#[always_context]
#[async_trait::async_trait]
impl ToConvert<CDriver> for Row {
    async fn get<'a>(
        exec: impl Executor<'_, Database = InternalDriver<CDriver>>,
        query: sqlx::query::Query<'a, InternalDriver<CDriver>, DriverArguments<'a, CDriver>>,
    ) -> anyhow::Result<Self>
    where
        Self: Sized,
    {
        exec.fetch_one(query)
            .await
            .with_context(context!("Failed to fetch one row from SQL query"))
    }
}
#[always_context]
impl ToConvertSingle<CDriver> for Row {}

#[always_context]
#[async_trait::async_trait]
impl ToConvert<CDriver> for Option<Row> {
    async fn get<'a>(
        exec: impl Executor<'_, Database = InternalDriver<CDriver>>,
        query: sqlx::query::Query<'a, InternalDriver<CDriver>, DriverArguments<'a, CDriver>>,
    ) -> anyhow::Result<Self>
    where
        Self: Sized,
    {
        exec.fetch_optional(query)
            .await
            .with_context(context!("Failed to fetch optional row from SQL query"))
    }
}

#[always_context]
#[async_trait::async_trait]
impl ToConvert<CDriver> for () {
    async fn get<'a>(
        exec: impl Executor<'_, Database = InternalDriver<CDriver>>,
        query: sqlx::query::Query<'a, InternalDriver<CDriver>, DriverArguments<'a, CDriver>>,
    ) -> anyhow::Result<Self>
    where
        Self: Sized,
    {
        #[no_context_inputs]
        exec.execute(query)
            .await
            .with_context(context!("Failed to execute SQL query"))?;
        Ok(())
    }
}

#[always_context]
#[async_trait::async_trait]
impl ToConvert<CDriver> for Vec<Row> {
    async fn get<'a>(
        exec: impl Executor<'_, Database = InternalDriver<CDriver>>,
        query: sqlx::query::Query<'a, InternalDriver<CDriver>, DriverArguments<'a, CDriver>>,
    ) -> anyhow::Result<Self>
    where
        Self: Sized,
    {
        exec.fetch_all(query)
            .await
            .with_context(context!("Failed to fetch all rows from SQL query"))
    }
}

#[always_context]
impl<T, Table> Output<Table, CDriver> for Vec<T>
where
    T: Output<Table, CDriver, DataToConvert = Row>,
{
    type DataToConvert = Vec<Row>;
    type UsedForChecks = T::UsedForChecks;

    fn select(current_query: &mut String) {
        T::select(current_query);
    }

    fn convert(data: Vec<Row>) -> anyhow::Result<Self> {
        let mut result = Vec::new();
        for r in data.into_iter() {
            #[no_context_inputs]
            result.push(T::convert(r)?);
        }
        Ok(result)
    }
}

#[always_context]
impl<T, Table> Output<Table, CDriver> for Option<T>
where
    T: Output<Table, CDriver, DataToConvert = Row>,
{
    type DataToConvert = Option<Row>;
    type UsedForChecks = T::UsedForChecks;

    fn select(current_query: &mut String) {
        T::select(current_query);
    }

    fn convert(data: Option<Row>) -> anyhow::Result<Self> {
        Ok(if let Some(data) = data {
            #[no_context_inputs]
            Some(T::convert(data)?)
        } else {
            None
        })
    }
}

#[always_context]
impl<Table> Output<Table, CDriver> for () {
    type DataToConvert = ();
    type UsedForChecks = ();

    fn select(current_query: &mut String) {
        current_query.push('1');
    }

    fn convert(_data: ()) -> anyhow::Result<Self> {
        Ok(())
    }
}