fluencelabs/sqlite-wasm-connector
1
0
Fork 0
mirror of https://github.com/fluencelabs/sqlite-wasm-connector synced 2025-03-17 23:20:51 +00:00
Code Issues Projects Releases Wiki Activity

Update the examples according to rustfmt

Browse Source
This commit is contained in:
Ivan Ukhov 2017-08-22 17:47:44 +02:00
parent 006027159b
commit 08c4dec645
2 changed files with 95 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

57
README.md
View File

@ -11,33 +11,43 @@ Open a connection, create a table, and insert some rows:
```rust
let connection = sqlite::open(":memory:").unwrap();
connection.execute("
CREATE TABLE users (name TEXT, age INTEGER);
INSERT INTO users (name, age) VALUES ('Alice', 42);
INSERT INTO users (name, age) VALUES ('Bob', 69);
").unwrap();
connection
.execute(
"
CREATE TABLE users (name TEXT, age INTEGER);
INSERT INTO users (name, age) VALUES ('Alice', 42);
INSERT INTO users (name, age) VALUES ('Bob', 69);
",
)
.unwrap();
```
Select some rows and process them one by one as plain text:
```rust
connection.iterate("SELECT * FROM users WHERE age > 50", |pairs| {
for &(column, value) in pairs.iter() {
println!("{} = {}", column, value.unwrap());
}
true
}).unwrap();
connection
.iterate("SELECT * FROM users WHERE age > 50", |pairs| {
for &(column, value) in pairs.iter() {
println!("{} = {}", column, value.unwrap());
}
true
})
.unwrap();
```
The same query using a prepared statement, which is much more efficient than the
previous technique:
The same query using a prepared statement, which is much more efficient than
the previous technique:
```rust
use sqlite::State;
let mut statement = connection.prepare("
SELECT * FROM users WHERE age > ?
").unwrap();
let mut statement = connection
.prepare(
"
SELECT * FROM users WHERE age > ?
"
)
.unwrap();
statement.bind(1, 50).unwrap();
@ -47,15 +57,20 @@ while let State::Row = statement.next().unwrap() {
}
```
The same query using a cursor, which is a wrapper around a prepared statement
providing the concept of row and featuring all-at-once binding:
The same query using a cursor, which is a wrapper around a prepared
statement providing the concept of row and featuring all-at-once binding:
```rust
use sqlite::Value;
let mut cursor = connection.prepare("
SELECT * FROM users WHERE age > ?
").unwrap().cursor();
let mut cursor = connection
.prepare(
"
SELECT * FROM users WHERE age > ?
",
)
.unwrap()
.cursor();
cursor.bind(&[Value::Integer(50)]).unwrap();

91
src/lib.rs
View File

@ -7,28 +7,38 @@
//! ```
//! let connection = sqlite::open(":memory:").unwrap();
//!
//! connection.execute("
//! CREATE TABLE users (name TEXT, age INTEGER);
//! INSERT INTO users (name, age) VALUES ('Alice', 42);
//! INSERT INTO users (name, age) VALUES ('Bob', 69);
//! ").unwrap();
//! connection
//! .execute(
//! "
//! CREATE TABLE users (name TEXT, age INTEGER);
//! INSERT INTO users (name, age) VALUES ('Alice', 42);
//! INSERT INTO users (name, age) VALUES ('Bob', 69);
//! ",
//! )
//! .unwrap();
//! ```
//!
//! Select some rows and process them one by one as plain text:
//!
//! ```
//! # let connection = sqlite::open(":memory:").unwrap();
//! # connection.execute("
//! # CREATE TABLE users (name TEXT, age INTEGER);
//! # INSERT INTO users (name, age) VALUES ('Alice', 42);
//! # INSERT INTO users (name, age) VALUES ('Bob', 69);
//! # ").unwrap();
//! connection.iterate("SELECT * FROM users WHERE age > 50", |pairs| {
//! for &(column, value) in pairs.iter() {
//! println!("{} = {}", column, value.unwrap());
//! }
//! true
//! }).unwrap();
//! # connection
//! # .execute(
//! # "
//! # CREATE TABLE users (name TEXT, age INTEGER);
//! # INSERT INTO users (name, age) VALUES ('Alice', 42);
//! # INSERT INTO users (name, age) VALUES ('Bob', 69);
//! # ",
//! # )
//! # .unwrap();
//! connection
//! .iterate("SELECT * FROM users WHERE age > 50", |pairs| {
//! for &(column, value) in pairs.iter() {
//! println!("{} = {}", column, value.unwrap());
//! }
//! true
//! })
//! .unwrap();
//! ```
//!
//! The same query using a prepared statement, which is much more efficient than
@ -37,15 +47,23 @@
//! ```
//! use sqlite::State;
//! # let connection = sqlite::open(":memory:").unwrap();
//! # connection.execute("
//! # CREATE TABLE users (name TEXT, age INTEGER);
//! # INSERT INTO users (name, age) VALUES ('Alice', 42);
//! # INSERT INTO users (name, age) VALUES ('Bob', 69);
//! # ").unwrap();
//! # connection
//! # .execute(
//! # "
//! # CREATE TABLE users (name TEXT, age INTEGER);
//! # INSERT INTO users (name, age) VALUES ('Alice', 42);
//! # INSERT INTO users (name, age) VALUES ('Bob', 69);
//! # ",
//! # )
//! # .unwrap();
//!
//! let mut statement = connection.prepare("
//! SELECT * FROM users WHERE age > ?
//! ").unwrap();
//! let mut statement = connection
//! .prepare(
//! "
//! SELECT * FROM users WHERE age > ?
//! "
//! )
//! .unwrap();
//!
//! statement.bind(1, 50).unwrap();
//!
@ -61,15 +79,24 @@
//! ```
//! use sqlite::Value;
//! # let connection = sqlite::open(":memory:").unwrap();
//! # connection.execute("
//! # CREATE TABLE users (name TEXT, age INTEGER);
//! # INSERT INTO users (name, age) VALUES ('Alice', 42);
//! # INSERT INTO users (name, age) VALUES ('Bob', 69);
//! # ").unwrap();
//! # connection
//! # .execute(
//! # "
//! # CREATE TABLE users (name TEXT, age INTEGER);
//! # INSERT INTO users (name, age) VALUES ('Alice', 42);
//! # INSERT INTO users (name, age) VALUES ('Bob', 69);
//! # ",
//! # )
//! # .unwrap();
//!
//! let mut cursor = connection.prepare("
//! SELECT * FROM users WHERE age > ?
//! ").unwrap().cursor();
//! let mut cursor = connection
//! .prepare(
//! "
//! SELECT * FROM users WHERE age > ?
//! ",
//! )
//! .unwrap()
//! .cursor();
//!
//! cursor.bind(&[Value::Integer(50)]).unwrap();
//!