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# swift-sqlite | ||
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swift-sqlite is a cross-platform modernization of the [SQLite.swift] project. | ||
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It includes [SQLite3] with [Full-text search] and [SQLCipher] extensions, | ||
and works out-of-the-box on macOS, iOS, Linux, Android, and Windows. | ||
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## Features | ||
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- A pure-Swift interface | ||
- A type-safe, optional-aware SQL expression builder | ||
- A flexible, chainable, lazy-executing query layer | ||
- Automatically-typed data access | ||
- A lightweight, uncomplicated query and parameter binding interface | ||
- Developer-friendly error handling and debugging | ||
- [Full-text search][] support | ||
- [Well-documented][See Documentation] | ||
- Extensively tested | ||
- [SQLCipher][] support | ||
- [Schema query/migration][] | ||
- Works on Android, Windows, and [Linux](Documentation/Linux.md) (with some limitations) | ||
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[SQLCipher]: https://www.zetetic.net/sqlcipher/ | ||
[Full-text search]: Documentation/Index.md#full-text-search | ||
[Schema query/migration]: Documentation/Index.md#querying-the-schema | ||
[See Documentation]: Documentation/Index.md#sqliteswift-documentation | ||
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## Usage | ||
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```swift | ||
import SQLiteDB | ||
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// Wrap everything in a do...catch to handle errors | ||
do { | ||
let db = try Connection("path/to/db.sqlite3") | ||
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let users = Table("users") | ||
let id = Expression<Int64>("id") | ||
let name = Expression<String?>("name") | ||
let email = Expression<String>("email") | ||
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try db.run(users.create { t in | ||
t.column(id, primaryKey: true) | ||
t.column(name) | ||
t.column(email, unique: true) | ||
}) | ||
// CREATE TABLE "users" ( | ||
// "id" INTEGER PRIMARY KEY NOT NULL, | ||
// "name" TEXT, | ||
// "email" TEXT NOT NULL UNIQUE | ||
// ) | ||
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let insert = users.insert(name <- "Alice", email <- "[email protected]") | ||
let rowid = try db.run(insert) | ||
// INSERT INTO "users" ("name", "email") VALUES ('Alice', '[email protected]') | ||
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for user in try db.prepare(users) { | ||
print("id: \(user[id]), name: \(user[name]), email: \(user[email])") | ||
// id: 1, name: Optional("Alice"), email: [email protected] | ||
} | ||
// SELECT * FROM "users" | ||
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let alice = users.filter(id == rowid) | ||
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try db.run(alice.update(email <- email.replace("mac.com", with: "me.com"))) | ||
// UPDATE "users" SET "email" = replace("email", 'mac.com', 'me.com') | ||
// WHERE ("id" = 1) | ||
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try db.run(alice.delete()) | ||
// DELETE FROM "users" WHERE ("id" = 1) | ||
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try db.scalar(users.count) // 0 | ||
// SELECT count(*) FROM "users" | ||
} catch { | ||
print (error) | ||
} | ||
``` | ||
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SQLite.swift also works as a lightweight, Swift-friendly wrapper over the C | ||
API. | ||
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```swift | ||
// Wrap everything in a do...catch to handle errors | ||
do { | ||
// ... | ||
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let stmt = try db.prepare("INSERT INTO users (email) VALUES (?)") | ||
for email in ["[email protected]", "[email protected]"] { | ||
try stmt.run(email) | ||
} | ||
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db.totalChanges // 3 | ||
db.changes // 1 | ||
db.lastInsertRowid // 3 | ||
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for row in try db.prepare("SELECT id, email FROM users") { | ||
print("id: \(row[0]), email: \(row[1])") | ||
// id: Optional(2), email: Optional("[email protected]") | ||
// id: Optional(3), email: Optional("[email protected]") | ||
} | ||
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try db.scalar("SELECT count(*) FROM users") // 2 | ||
} catch { | ||
print (error) | ||
} | ||
``` | ||
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[Read the documentation][See Documentation] | ||
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## Installation | ||
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### Swift Package Manager | ||
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The [Swift Package Manager][] is a tool for managing the distribution of | ||
Swift code. | ||
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1. Add the following to your `Package.swift` file: | ||
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```swift | ||
dependencies: [ | ||
.package(url: "https://github.com/skiptools/swift-sqlite.git", "0.0.0"..<"2.0.0") | ||
] | ||
``` | ||
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2. Build your project: | ||
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```sh | ||
$ swift build | ||
``` | ||
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[Swift Package Manager]: https://swift.org/package-manager | ||
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## Communication | ||
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[See the planning document] for a roadmap and existing feature requests. | ||
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[Read the contributing guidelines][]. The _TL;DR_ (but please; _R_): | ||
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- Need **help** or have a **general question**? [Ask on Stack | ||
Overflow][] (tag `sqlite.swift`). | ||
- Found a **bug** or have a **feature request**? [Open an issue][]. | ||
- Want to **contribute**? [Submit a pull request][]. | ||
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[See the planning document]: /Documentation/Planning.md | ||
[Read the contributing guidelines]: ./CONTRIBUTING.md#contributing | ||
[Ask on Stack Overflow]: https://stackoverflow.com/questions/tagged/sqlite.swift | ||
[Open an issue]: https://github.com/skiptools/swift-sqlite/issues/new | ||
[Submit a pull request]: https://github.com/skiptools/swift-sqlite/fork | ||
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## Original author | ||
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- [Stephen Celis](mailto:[email protected]) | ||
([@stephencelis](https://twitter.com/stephencelis)) | ||
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## License | ||
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SQLite.swift is available under the MIT license. See [the LICENSE | ||
file](./LICENSE.txt) for more information. | ||
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## Alternatives | ||
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Looking for something else? Try another Swift wrapper (or [FMDB][]): | ||
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- [SQLite.swift](https://github.com/stephencelis/SQLite.swift) | ||
- [GRDB](https://github.com/groue/GRDB.swift) | ||
- [SQLiteDB](https://github.com/FahimF/SQLiteDB) | ||
- [Squeal](https://github.com/nerdyc/Squeal) | ||
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[Swift]: https://swift.org/ | ||
[SQLite3]: https://www.sqlite.org | ||
[SQLite.swift]: https://github.com/stephencelis/SQLite.swift | ||
[FMDB]: https://github.com/ccgus/fmdb |