wae-database 0.0.2

WAE Database - 数据库服务抽象层，支持 Turso/PostgreSQL/MySQL
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
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410

//! HTTP 数据库连接提取器
//!
//! 提供从 HTTP 请求扩展中提取数据库连接的提取器。

use crate::connection::{DatabaseBackend, DatabaseConnection};
use std::{fmt, sync::Arc};
use wae_types::WaeError;

/// 数据库连接提取错误
///
/// 当无法从请求中提取数据库连接时返回的错误类型。
#[derive(Debug, Clone)]
pub struct DatabaseRejection {
    inner: WaeError,
}

impl DatabaseRejection {
    fn new(error: WaeError) -> Self {
        Self { inner: error }
    }

    /// 获取内部错误
    pub fn into_inner(self) -> WaeError {
        self.inner
    }
}

impl fmt::Display for DatabaseRejection {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        self.inner.fmt(f)
    }
}

impl std::error::Error for DatabaseRejection {}

/// 数据库连接提取器
///
/// 用于从 HTTP 请求的扩展中提取数据库连接。
///
/// # 示例
///
/// ```rust,ignore
/// use wae_database::extract::DatabaseConnectionExtractor;
///
/// async fn handler(request: &http::Request<Body>) {
///     let db = DatabaseConnectionExtractor::from_request(request).unwrap();
///     let rows = db.query("SELECT * FROM users").await.unwrap();
/// }
/// ```
#[derive(Clone)]
pub struct DatabaseConnectionExtractor {
    connection: Arc<dyn DatabaseConnection + Send + Sync>,
}

impl fmt::Debug for DatabaseConnectionExtractor {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.debug_struct("DatabaseConnectionExtractor").field("backend", &self.connection.backend()).finish()
    }
}

impl DatabaseConnectionExtractor {
    /// 创建数据库连接提取器
    pub fn new(connection: Arc<dyn DatabaseConnection + Send + Sync>) -> Self {
        Self { connection }
    }

    /// 从请求的扩展中提取数据库连接
    pub fn from_request<B>(request: &http::Request<B>) -> Result<Self, DatabaseRejection> {
        request
            .extensions()
            .get::<Arc<dyn DatabaseConnection + Send + Sync>>()
            .cloned()
            .map(|connection| DatabaseConnectionExtractor { connection })
            .ok_or_else(|| DatabaseRejection::new(WaeError::internal("Database connection not found in request extensions")))
    }

    /// 获取内部数据库连接的引用
    pub fn inner(&self) -> &(dyn DatabaseConnection + Send + Sync) {
        &*self.connection
    }

    /// 获取数据库后端类型
    pub fn backend(&self) -> DatabaseBackend {
        self.connection.backend()
    }

    /// 执行查询，返回结果集
    pub async fn query(&self, sql: &str) -> crate::connection::DatabaseResult<crate::connection::DatabaseRows> {
        self.connection.query(sql).await
    }

    /// 执行带参数的查询
    pub async fn query_with(
        &self,
        sql: &str,
        params: Vec<wae_types::Value>,
    ) -> crate::connection::DatabaseResult<crate::connection::DatabaseRows> {
        self.connection.query_with(sql, params).await
    }

    /// 执行语句，返回影响的行数
    pub async fn execute(&self, sql: &str) -> crate::connection::DatabaseResult<u64> {
        self.connection.execute(sql).await
    }

    /// 执行带参数的语句
    pub async fn execute_with(&self, sql: &str, params: Vec<wae_types::Value>) -> crate::connection::DatabaseResult<u64> {
        self.connection.execute_with(sql, params).await
    }

    /// 准备语句
    pub async fn prepare(&self, sql: &str) -> crate::connection::DatabaseResult<crate::connection::DatabaseStatement> {
        self.connection.prepare(sql).await
    }

    /// 开始一个新事务
    pub async fn begin_transaction(&self) -> crate::connection::DatabaseResult<()> {
        self.connection.begin_transaction().await
    }

    /// 提交当前事务
    pub async fn commit(&self) -> crate::connection::DatabaseResult<()> {
        self.connection.commit().await
    }

    /// 回滚当前事务
    pub async fn rollback(&self) -> crate::connection::DatabaseResult<()> {
        self.connection.rollback().await
    }
}

#[cfg(feature = "limbo")]
/// Limbo 数据库连接提取器
///
/// 用于从 HTTP 请求的扩展中提取 Limbo 数据库连接。
#[derive(Clone)]
pub struct LimboConnectionExtractor {
    connection: Arc<crate::connection::LimboConnection>,
}

#[cfg(feature = "limbo")]
impl fmt::Debug for LimboConnectionExtractor {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.debug_struct("LimboConnectionExtractor").field("backend", &DatabaseBackend::Limbo).finish()
    }
}

#[cfg(feature = "limbo")]
impl LimboConnectionExtractor {
    /// 创建 Limbo 连接提取器
    pub fn new(connection: Arc<crate::connection::LimboConnection>) -> Self {
        Self { connection }
    }

    /// 从请求的扩展中提取 Limbo 连接
    pub fn from_request<B>(request: &http::Request<B>) -> Result<Self, DatabaseRejection> {
        request
            .extensions()
            .get::<Arc<crate::connection::LimboConnection>>()
            .cloned()
            .map(|connection| LimboConnectionExtractor { connection })
            .ok_or_else(|| DatabaseRejection::new(WaeError::internal("Limbo connection not found in request extensions")))
    }

    /// 获取内部 Limbo 连接的引用
    pub fn inner(&self) -> &crate::connection::LimboConnection {
        &*self.connection
    }

    /// 获取数据库后端类型
    pub fn backend(&self) -> DatabaseBackend {
        self.connection.backend()
    }

    /// 执行查询，返回结果集
    pub async fn query(&self, sql: &str) -> crate::connection::DatabaseResult<crate::connection::DatabaseRows> {
        self.connection.query(sql).await
    }

    /// 执行带参数的查询
    pub async fn query_with(
        &self,
        sql: &str,
        params: Vec<wae_types::Value>,
    ) -> crate::connection::DatabaseResult<crate::connection::DatabaseRows> {
        self.connection.query_with(sql, params).await
    }

    /// 执行语句，返回影响的行数
    pub async fn execute(&self, sql: &str) -> crate::connection::DatabaseResult<u64> {
        self.connection.execute(sql).await
    }

    /// 执行带参数的语句
    pub async fn execute_with(&self, sql: &str, params: Vec<wae_types::Value>) -> crate::connection::DatabaseResult<u64> {
        self.connection.execute_with(sql, params).await
    }

    /// 准备语句
    pub async fn prepare(&self, sql: &str) -> crate::connection::DatabaseResult<crate::connection::DatabaseStatement> {
        self.connection.prepare(sql).await
    }

    /// 开始一个新事务
    pub async fn begin_transaction(&self) -> crate::connection::DatabaseResult<()> {
        self.connection.begin_transaction().await
    }

    /// 提交当前事务
    pub async fn commit(&self) -> crate::connection::DatabaseResult<()> {
        self.connection.commit().await
    }

    /// 回滚当前事务
    pub async fn rollback(&self) -> crate::connection::DatabaseResult<()> {
        self.connection.rollback().await
    }

    #[cfg(feature = "limbo")]
    /// 执行带参数的查询 (内部使用 limbo::Value)
    pub async fn query_with_limbo(
        &self,
        sql: &str,
        params: Vec<limbo::Value>,
    ) -> crate::connection::DatabaseResult<crate::connection::DatabaseRows> {
        self.connection.query_with_limbo(sql, params).await
    }

    #[cfg(feature = "limbo")]
    /// 执行带参数的语句 (内部使用 limbo::Value)
    pub async fn execute_with_limbo(&self, sql: &str, params: Vec<limbo::Value>) -> crate::connection::DatabaseResult<u64> {
        self.connection.execute_with_limbo(sql, params).await
    }
}

#[cfg(feature = "postgres")]
/// PostgreSQL 数据库连接提取器
///
/// 用于从 HTTP 请求的扩展中提取 PostgreSQL 数据库连接。
#[derive(Clone)]
pub struct PostgresConnectionExtractor {
    connection: Arc<crate::connection::PostgresConnection>,
}

#[cfg(feature = "postgres")]
impl fmt::Debug for PostgresConnectionExtractor {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.debug_struct("PostgresConnectionExtractor").field("backend", &DatabaseBackend::Postgres).finish()
    }
}

#[cfg(feature = "postgres")]
impl PostgresConnectionExtractor {
    /// 创建 PostgreSQL 连接提取器
    pub fn new(connection: Arc<crate::connection::PostgresConnection>) -> Self {
        Self { connection }
    }

    /// 从请求的扩展中提取 PostgreSQL 连接
    pub fn from_request<B>(request: &http::Request<B>) -> Result<Self, DatabaseRejection> {
        request
            .extensions()
            .get::<Arc<crate::connection::PostgresConnection>>()
            .cloned()
            .map(|connection| PostgresConnectionExtractor { connection })
            .ok_or_else(|| DatabaseRejection::new(WaeError::internal("PostgreSQL connection not found in request extensions")))
    }

    /// 获取内部 PostgreSQL 连接的引用
    pub fn inner(&self) -> &crate::connection::PostgresConnection {
        &*self.connection
    }

    /// 获取数据库后端类型
    pub fn backend(&self) -> DatabaseBackend {
        self.connection.backend()
    }

    /// 执行查询，返回结果集
    pub async fn query(&self, sql: &str) -> crate::connection::DatabaseResult<crate::connection::DatabaseRows> {
        self.connection.query(sql).await
    }

    /// 执行带参数的查询
    pub async fn query_with(
        &self,
        sql: &str,
        params: Vec<wae_types::Value>,
    ) -> crate::connection::DatabaseResult<crate::connection::DatabaseRows> {
        self.connection.query_with(sql, params).await
    }

    /// 执行语句，返回影响的行数
    pub async fn execute(&self, sql: &str) -> crate::connection::DatabaseResult<u64> {
        self.connection.execute(sql).await
    }

    /// 执行带参数的语句
    pub async fn execute_with(&self, sql: &str, params: Vec<wae_types::Value>) -> crate::connection::DatabaseResult<u64> {
        self.connection.execute_with(sql, params).await
    }

    /// 准备语句
    pub async fn prepare(&self, sql: &str) -> crate::connection::DatabaseResult<crate::connection::DatabaseStatement> {
        self.connection.prepare(sql).await
    }

    /// 开始一个新事务
    pub async fn begin_transaction(&self) -> crate::connection::DatabaseResult<()> {
        self.connection.begin_transaction().await
    }

    /// 提交当前事务
    pub async fn commit(&self) -> crate::connection::DatabaseResult<()> {
        self.connection.commit().await
    }

    /// 回滚当前事务
    pub async fn rollback(&self) -> crate::connection::DatabaseResult<()> {
        self.connection.rollback().await
    }
}

#[cfg(feature = "mysql")]
/// MySQL 数据库连接提取器
///
/// 用于从 HTTP 请求的扩展中提取 MySQL 数据库连接。
#[derive(Clone)]
pub struct MySqlConnectionExtractor {
    connection: Arc<crate::connection::MySqlConnection>,
}

#[cfg(feature = "mysql")]
impl fmt::Debug for MySqlConnectionExtractor {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.debug_struct("MySqlConnectionExtractor").field("backend", &DatabaseBackend::MySql).finish()
    }
}

#[cfg(feature = "mysql")]
impl MySqlConnectionExtractor {
    /// 创建 MySQL 连接提取器
    pub fn new(connection: Arc<crate::connection::MySqlConnection>) -> Self {
        Self { connection }
    }

    /// 从请求的扩展中提取 MySQL 连接
    pub fn from_request<B>(request: &http::Request<B>) -> Result<Self, DatabaseRejection> {
        request
            .extensions()
            .get::<Arc<crate::connection::MySqlConnection>>()
            .cloned()
            .map(|connection| MySqlConnectionExtractor { connection })
            .ok_or_else(|| DatabaseRejection::new(WaeError::internal("MySQL connection not found in request extensions")))
    }

    /// 获取内部 MySQL 连接的引用
    pub fn inner(&self) -> &crate::connection::MySqlConnection {
        &*self.connection
    }

    /// 获取数据库后端类型
    pub fn backend(&self) -> DatabaseBackend {
        self.connection.backend()
    }

    /// 执行查询，返回结果集
    pub async fn query(&self, sql: &str) -> crate::connection::DatabaseResult<crate::connection::DatabaseRows> {
        self.connection.query(sql).await
    }

    /// 执行带参数的查询
    pub async fn query_with(
        &self,
        sql: &str,
        params: Vec<wae_types::Value>,
    ) -> crate::connection::DatabaseResult<crate::connection::DatabaseRows> {
        self.connection.query_with(sql, params).await
    }

    /// 执行语句，返回影响的行数
    pub async fn execute(&self, sql: &str) -> crate::connection::DatabaseResult<u64> {
        self.connection.execute(sql).await
    }

    /// 执行带参数的语句
    pub async fn execute_with(&self, sql: &str, params: Vec<wae_types::Value>) -> crate::connection::DatabaseResult<u64> {
        self.connection.execute_with(sql, params).await
    }

    /// 准备语句
    pub async fn prepare(&self, sql: &str) -> crate::connection::DatabaseResult<crate::connection::DatabaseStatement> {
        self.connection.prepare(sql).await
    }

    /// 开始一个新事务
    pub async fn begin_transaction(&self) -> crate::connection::DatabaseResult<()> {
        self.connection.begin_transaction().await
    }

    /// 提交当前事务
    pub async fn commit(&self) -> crate::connection::DatabaseResult<()> {
        self.connection.commit().await
    }

    /// 回滚当前事务
    pub async fn rollback(&self) -> crate::connection::DatabaseResult<()> {
        self.connection.rollback().await
    }
}