rnacos 0.8.3

Nacos server re-implemented in Rust.
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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169

#[allow(dead_code, unused_imports)]
use rsql_builder::B;
use rusqlite::{Connection, Row};
use serde::{Deserialize, Serialize};

use crate::common::rusqlite_utils::{
    get_row_value, sqlite_execute, sqlite_fetch, sqlite_fetch_count,
};

#[derive(Debug, Default, Serialize, Deserialize)]
pub struct TenantDO {
    pub id: Option<i64>,
    pub tenant_id: Option<String>,
    pub tenant_name: Option<String>,
    pub tenant_desc: Option<String>,
    pub create_flag: Option<i64>,
}

impl TenantDO {
    fn from_row(r: &Row) -> Self {
        let mut s = Self::default();
        s.id = get_row_value(r, "id");
        s.tenant_id = get_row_value(r, "tenant_id");
        s.tenant_name = get_row_value(r, "tenant_name");
        s.tenant_desc = get_row_value(r, "tenant_desc");
        s.create_flag = get_row_value(r, "create_flag");
        s
    }
}

#[derive(Debug, Default)]
pub struct TenantParam {
    pub id: Option<i64>,
    pub limit: Option<i64>,
    pub offset: Option<i64>,
}
pub struct TenantSql {}

impl TenantSql {
    fn conditions(&self, param: &TenantParam) -> B<'_> {
        let mut whr = B::new_where();
        if let Some(id) = &param.id {
            whr.eq("id", id);
        }
        whr
    }

    pub fn query_prepare(&self, param: &TenantParam) -> (String, Vec<serde_json::Value>) {
        B::prepare(
            B::new_sql(
                "select id, tenant_id, tenant_name, tenant_desc, create_flag from tb_tenant",
            )
            .push_build(&mut self.conditions(param)),
        )
    }

    pub fn insert_prepare(&self, record: &TenantDO) -> (String, Vec<serde_json::Value>) {
        let mut field_builder = B::new_comma_paren();
        let mut value_builder = B::new_comma_paren();
        if let Some(id) = &record.id {
            field_builder.push_sql("id");
            value_builder.push("?", id);
        }
        if let Some(tenant_id) = &record.tenant_id {
            field_builder.push_sql("tenant_id");
            value_builder.push("?", tenant_id);
        }
        if let Some(tenant_name) = &record.tenant_name {
            field_builder.push_sql("tenant_name");
            value_builder.push("?", tenant_name);
        }
        if let Some(tenant_desc) = &record.tenant_desc {
            field_builder.push_sql("tenant_desc");
            value_builder.push("?", tenant_desc);
        }
        if let Some(create_flag) = &record.create_flag {
            field_builder.push_sql("create_flag");
            value_builder.push("?", create_flag);
        }
        B::prepare(
            B::new_sql("insert into tb_tenant")
                .push_build(&mut field_builder)
                .push_sql("values")
                .push_build(&mut value_builder),
        )
    }

    pub fn update_prepare(
        &self,
        record: &TenantDO,
        param: &TenantParam,
    ) -> (String, Vec<serde_json::Value>) {
        let mut set_builder = B::new_comma();
        if let Some(id) = &record.id {
            set_builder.eq("id", id);
        }
        if let Some(tenant_id) = &record.tenant_id {
            set_builder.eq("tenant_id", tenant_id);
        }
        if let Some(tenant_name) = &record.tenant_name {
            set_builder.eq("tenant_name", tenant_name);
        }
        if let Some(tenant_desc) = &record.tenant_desc {
            set_builder.eq("tenant_desc", tenant_desc);
        }
        if let Some(create_flag) = &record.create_flag {
            set_builder.eq("create_flag", create_flag);
        }
        let mut whr = self.conditions(param);
        if whr.is_empty() {
            panic!("update conditions is empty");
        }
        B::prepare(
            B::new_sql("update tb_tenant set ")
                .push_build(&mut set_builder)
                .push_build(&mut whr),
        )
    }

    pub fn delete_prepare(&self, param: &TenantParam) -> (String, Vec<serde_json::Value>) {
        B::prepare(B::new_sql("delete from tb_tenant").push_build(&mut self.conditions(param)))
    }
}

pub struct TenantDao<'a> {
    conn: &'a Connection,
    inner: TenantSql,
}

impl<'a> TenantDao<'a> {
    pub fn new(conn: &'a Connection) -> Self {
        Self {
            conn,
            inner: TenantSql {},
        }
    }

    pub fn execute(&self, sql: &str, args: &[serde_json::Value]) -> anyhow::Result<usize> {
        sqlite_execute(self.conn, sql, args)
    }

    pub fn fetch(&self, sql: &str, args: &[serde_json::Value]) -> anyhow::Result<Vec<TenantDO>> {
        sqlite_fetch(self.conn, sql, args, TenantDO::from_row)
    }

    pub fn fetch_count(&self, sql: &str, args: &[serde_json::Value]) -> anyhow::Result<u64> {
        sqlite_fetch_count(self.conn, sql, args)
    }

    pub fn insert(&self, record: &TenantDO) -> anyhow::Result<usize> {
        let (sql, args) = self.inner.insert_prepare(record);
        self.execute(&sql, &args)
    }

    pub fn update(&self, record: &TenantDO, param: &TenantParam) -> anyhow::Result<usize> {
        let (sql, args) = self.inner.update_prepare(record, param);
        self.execute(&sql, &args)
    }

    pub fn delete(&self, param: &TenantParam) -> anyhow::Result<usize> {
        let (sql, args) = self.inner.delete_prepare(param);
        self.execute(&sql, &args)
    }

    pub fn query(&self, param: &TenantParam) -> anyhow::Result<Vec<TenantDO>> {
        let (sql, args) = self.inner.query_prepare(param);
        self.fetch(&sql, &args)
    }
}