Add possibility to specify custom Realm Configuration

Example/Example/ViewController.swift

@@ -44,6 +44,7 @@ class ViewController: UIViewController {
 //        config.menuTextColor = UIColor.brownColor()
 //        config.menuBackgroundColor = UIColor.lightGrayColor()
 //        config.hidePageIndicator = true
+//        config.realmConfiguration = Realm.Configuration(fileURL: FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first?.appendingPathComponent("highlights.realm"))
 
         // Custom sharing quote background
         let customImageQuote = QuoteImage(withImage: UIImage(named: "demo-bg")!, alpha: 0.6, backgroundColor: UIColor.black)

Source/FolioReaderConfig.swift

@@ -8,6 +8,8 @@
 
 import UIKit
 
+import RealmSwift
+
 // MARK: - FolioReaderScrollDirection
 
 /**
@@ -162,7 +164,12 @@ open class FolioReaderConfig: NSObject {
 
     /// Enable or disable default Quote Image backgrounds
     open var quotePreserveDefaultBackgrounds = true
-
+
+    // MARK: Realm
+
+    /// Realm configuration for storing highlights
+    open var realmConfiguration = Realm.Configuration()
+
     // MARK: Localized strings
 
     /// Localizes Highlight title

Source/Models/Highlight+Helper.swift

@@ -94,7 +94,7 @@ extension Highlight {
      */
     public func persist(_ completion: Completion? = nil) {
         do {
-            let realm = try! Realm()
+            let realm = try! Realm(configuration: readerConfig.realmConfiguration)
             realm.beginWrite()
             realm.add(self, update: true)
             try realm.commitWrite()
@@ -110,7 +110,7 @@ extension Highlight {
      */
     public func remove() {
         do {
-            let realm = try! Realm()
+            let realm = try! Realm(configuration: readerConfig.realmConfiguration)
             realm.beginWrite()
             realm.delete(self)
             try realm.commitWrite()
@@ -128,7 +128,7 @@ extension Highlight {
         var highlight: Highlight?
         let predicate = NSPredicate(format:"highlightId = %@", highlightId)
 
-        let realm = try! Realm()
+        let realm = try! Realm(configuration: readerConfig.realmConfiguration)
         highlight = realm.objects(Highlight.self).filter(predicate).toArray(Highlight.self).first
         highlight?.remove()
     }
@@ -143,7 +143,7 @@ extension Highlight {
         var highlight: Highlight?
         let predicate = NSPredicate(format:"highlightId = %@", highlightId)
         do {
-            let realm = try! Realm()
+            let realm = try! Realm(configuration: readerConfig.realmConfiguration)
             highlight = realm.objects(Highlight.self).filter(predicate).toArray(Highlight.self).first
             realm.beginWrite()
 
@@ -167,7 +167,7 @@ extension Highlight {
     public static func allByBookId(_ bookId: String, andPage page: NSNumber? = nil) -> [Highlight] {
         var highlights: [Highlight]?
         let predicate = (page != nil) ? NSPredicate(format: "bookId = %@ && page = %@", bookId, page!) : NSPredicate(format: "bookId = %@", bookId)
-        let realm = try! Realm()
+        let realm = try! Realm(configuration: readerConfig.realmConfiguration)
         highlights = realm.objects(Highlight.self).filter(predicate).toArray(Highlight.self)
         return highlights!
     }
@@ -179,7 +179,7 @@ extension Highlight {
      */
     public static func all() -> [Highlight] {
         var highlights: [Highlight]?
-        let realm = try! Realm()
+        let realm = try! Realm(configuration: readerConfig.realmConfiguration)
         highlights = realm.objects(Highlight.self).toArray(Highlight.self)
         return highlights!
     }