Merge pull request #56 from qutheory/fluent-8

node, joins, and relationships

Author: tanner0101

.swift-version

@@ -1,2 +1,2 @@
-DEVELOPMENT-SNAPSHOT-2016-06-06-a
+DEVELOPMENT-SNAPSHOT-2016-07-25-a
 

.travis.yml

@@ -4,12 +4,10 @@ os:
 language: generic
 sudo: required
 dist: trusty
-osx_image: xcode7.3
+osx_image: xcode8
 install:
-  - eval "$(curl -sL https://gist.githubusercontent.com/kylef/5c0475ff02b7c7671d2a/raw/02090c7ede5a637b76e6df1710e83cd0bbe7dcdf/swiftenv-install.sh)"
+  - eval "$(curl -sL swift.qutheory.io/travis)"
 script:
-  # Build Fluent
   - swift build
   - swift build --configuration release
-  # Test Fluent
   - swift test

Package.swift

@@ -3,13 +3,8 @@ import PackageDescription
 let package = Package(
     name: "Fluent",
     dependencies: [
-        //Standards package. Contains protocols for cross-project compatability.
-        .Package(url: "https://github.com/open-swift/C7.git", majorVersion: 0, minor: 9),
-
-        // Syntax for easily accessing values from generic data.
-        .Package(url: "https://github.com/qutheory/polymorphic.git", majorVersion: 0, minor: 2),
-
-        // Syntax for easily indexing arrays and dictionaries.
-        .Package(url: "https://github.com/qutheory/path-indexable.git", majorVersion: 0, minor: 2)
+        // Data structure for converting between multiple representations
+        .Package(url: "https://github.com/qutheory/node.git", majorVersion: 0, minor: 2)
     ]
 )
+

README.md

@@ -21,6 +21,18 @@ Clone the [Example](https://github.com/qutheory/fluent-example) project to start
 
 You must have Swift 3 or later installed. You can learn more about Swift 3 at [Swift.org](http://swift.org)
 
+## 🌏 Environment
+
+|Fluent|Xcode|Swift|
+|:-:|:-:|:-:|
+|0.8.x|8.0 Beta **3**|DEVELOPMENT-SNAPSHOT-2016-07-25-a|
+|0.7.x|7.3.x|DEVELOPMENT-SNAPSHOT-2016-06-06-a|
+|0.6.x|7.3.x|DEVELOPMENT-SNAPSHOT-2016-06-06-a|
+|0.5.x|7.3.x|DEVELOPMENT-SNAPSHOT-2016-06-06-a|
+|0.4.x|7.3.x|3.0-preview-1-SNAPSHOT-2016-05-31-a|
+|0.3.x|7.3.x|DEVELOPMENT-SNAPSHOT-2016-05-03-a|
+|0.2.x|7.3.x|DEVELOPMENT-SNAPSHOT-2016-03-01-a|
+
 ## 📖 Documentation
 
 Visit the [Documentation](http://docs.qutheory.io) for extensive information on getting setup, using, and deploying Vapor. 

Sources/Fluent/Database/Database.swift

@@ -15,7 +15,7 @@ public class Database {
         Creates a `Database` with the supplied
         `Driver`. This cannot be changed later.
     */
-    public init(driver: Driver) {
+    public init(_ driver: Driver) {
         self.driver = driver
     }
 
@@ -30,5 +30,5 @@ public class Database {
     /**
         The default database for all `Model` types.
     */
-    public static var `default`: Database = Database(driver: PrintDriver())
+    public static var `default`: Database?
 }

Sources/Fluent/Database/Driver.swift

@@ -21,11 +21,29 @@ public protocol Driver {
         created, or updated by the action.
     */
     @discardableResult
-    func query<T: Model>(_ query: Query<T>) throws -> [[String: Value]]
+    func query<T: Entity>(_ query: Query<T>) throws -> Node
 
     /**
         Creates the `Schema` indicated
         by the `Builder`.
     */
     func schema(_ schema: Schema) throws
+
+    /**
+        Drivers that support raw querying
+        accept string queries and parameterized values.
+
+        This allows Fluent extensions to be written that
+        can support custom querying behavior.
+    */
+    @discardableResult
+    func raw(_ raw: String, _ values: [Node]) throws -> Node
+}
+
+extension Driver {
+    @discardableResult
+    public func raw(_ raw: String, _ values: [NodeRepresentable] = []) throws -> Node {
+        let nodes = try values.map { try $0.makeNode() }
+        return try self.raw(raw, nodes)
+    }
 }

Sources/Fluent/Database/PrintDriver.swift

@@ -0,0 +1,109 @@
+import Foundation
+
+/**
+    Represents an entity that can be
+    stored and retrieved from the `Database`.
+*/
+public protocol Entity: Preparation, NodeConvertible {
+    /**
+        The collection or table name
+        for this entity.
+    */
+    static var entity: String { get }
+
+    /**
+        The entity's primary identifier.
+        This is the same value used for
+        `find(:_)`.
+    */
+    var id: Node? { get set }
+}
+
+//MARK: Defaults
+
+extension Entity {
+    /**
+        The default entity is the
+        lowercase model pluralized.
+    */
+    public static var entity: String {
+        return name + "s"
+    }
+
+    public static var name: String {
+        return String(self).lowercased()
+    }
+}
+
+//MARK: CRUD
+
+extension Entity {
+    /**
+        Persists the entity into the 
+        data store and sets the `id` property.
+    */
+    public mutating func save() throws {
+        try Self.query().save(&self)
+    }
+
+    /**
+        Deletes the entity from the data
+        store if the `id` property is set.
+    */
+    public func delete() throws {
+        try Self.query().delete(self)
+    }
+
+    /**
+        Returns all entities for this `Model`.
+    */
+    public static func all() throws -> [Self] {
+        return try Self.query().all()
+    }
+
+    /**
+        Finds the entity with the given `id`.
+    */
+    public static func find(_ id: NodeRepresentable) throws -> Self? {
+        guard let idKey = database?.driver.idKey else {
+            return nil
+        }
+
+        return try Self.query().filter(idKey, .equals, id).first()
+    }
+
+    /**
+        Creates a `Query` instance for this `Model`.
+    */
+    public static func query() throws -> Query<Self> {
+        guard let db = database else {
+            throw EntityError.noDatabase
+        }
+        return Query(db)
+    }
+}
+
+public enum EntityError: Error {
+    case noDatabase
+}
+
+//MARK: Database
+
+extension Entity {
+    /**
+        Fetches or sets the `Database` for this
+        `Model` from the static database map.
+    */
+    public static var database: Database? {
+        get {
+            if let db = Database.map[Self.name] {
+                return db
+            } else {
+                return Database.default
+            }
+        }
+        set {
+            Database.map[Self.name] = newValue
+        }
+    }
+}