fluencelabs/sqlite-wasm-connector
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Extend the example

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This commit is contained in:
Ivan Ukhov 2015-07-30 08:12:43 -04:00
parent c2911c0b36
commit e3222f050d
2 changed files with 42 additions and 4 deletions
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23
README.md
View File

@ -11,7 +11,7 @@ let connection = sqlite::open(":memory:").unwrap();
connection.execute("
CREATE TABLE `users` (id INTEGER, name VARCHAR(255));
INSERT INTO `users` (id, name) VALUES (1, 'Alice');
INSERT INTO `users` (id, name) VALUES (42, 'Alice');
").unwrap();
connection.process("SELECT * FROM `users`", |pairs| {
@ -20,9 +20,28 @@ connection.process("SELECT * FROM `users`", |pairs| {
}
true
}).unwrap();
```
The same example using prepared statements:
```rust
use sqlite::State;
let connection = sqlite::open(":memory:").unwrap();
connection.execute("
CREATE TABLE `users` (id INTEGER, name VARCHAR(255))
");
let mut statement = connection.prepare("
INSERT INTO `users` (id, name) VALUES (?, ?)
").unwrap();
statement.bind(1, 42).unwrap();
statement.bind(2, "Alice").unwrap();
assert_eq!(statement.step().unwrap(), State::Done);
let mut statement = connection.prepare("SELECT * FROM `users`").unwrap();
while let sqlite::State::Row = statement.step().unwrap() {
while let State::Row = statement.step().unwrap() {
println!("id = {}", statement.read::<i64>(0).unwrap());
println!("name = {}", statement.read::<String>(1).unwrap());
}

23
src/lib.rs
View File

@ -7,7 +7,7 @@
//!
//! connection.execute("
//! CREATE TABLE `users` (id INTEGER, name VARCHAR(255));
//! INSERT INTO `users` (id, name) VALUES (1, 'Alice');
//! INSERT INTO `users` (id, name) VALUES (42, 'Alice');
//! ").unwrap();
//!
//! connection.process("SELECT * FROM `users`", |pairs| {
@ -16,9 +16,28 @@
//! }
//! true
//! }).unwrap();
//! ```
//!
//! The same example using prepared statements:
//!
//! ```
//! use sqlite::State;
//!
//! let connection = sqlite::open(":memory:").unwrap();
//!
//! connection.execute("
//! CREATE TABLE `users` (id INTEGER, name VARCHAR(255))
//! ");
//!
//! let mut statement = connection.prepare("
//! INSERT INTO `users` (id, name) VALUES (?, ?)
//! ").unwrap();
//! statement.bind(1, 42).unwrap();
//! statement.bind(2, "Alice").unwrap();
//! assert_eq!(statement.step().unwrap(), State::Done);
//!
//! let mut statement = connection.prepare("SELECT * FROM `users`").unwrap();
//! while let sqlite::State::Row = statement.step().unwrap() {
//! while let State::Row = statement.step().unwrap() {
//! println!("id = {}", statement.read::<i64>(0).unwrap());
//! println!("name = {}", statement.read::<String>(1).unwrap());
//! }