Realm browser app how to#
Realm browser app install#
Realm browser app code#

The act of creating a model defines the schema of the database to create a model you simply subclass Object and define the fields you want to persist as properties. You will create instances using the Realm() initializer. Realm: Realm instances are the heart of the framework it’s your access point to the underlying database, similar to a Core Data managed object context. In order to better understand what Realm does, here’s an overview of the Realm classes and concepts you’ll use in this tutorial: It’s really useful while developing as the Realm database format is proprietary and not easily human-readable. The Realm Browser lets you read and edit Realm databases.

Realm browser app install#

Realm also provides a nice utility that you’ll want to install from the App Store to make your life a little easier. If not, re-check the steps above carefully. Thats it! Build and run the project to ensure everything compiles.

Expand the Agents Partner project in the Project navigator, and then the group/folder also named Agents Partner to reveal the files you will be working with. If you open the regular project file by mistake, Xcode won’t properly be able to find any of the dependencies you installed with CocoaPods, so you must use the. This is now the file you will open when you want to work on this project. If you currently have your Agents Partner starter project open in Xcode, close it now, and then double click to open the. Open the root directory of the starter project in finder, and you will now see some folders that CocoaPods placed there, in addition to Agents Partner.xcworkspace. Pretty neat! It may take several minutes for Realm to install, keep an eye on your terminal and once it’s complete you will see a line near the bottom that begins with Pod installation complete!. This tells CocoaPods to scan through your Podfile and install any pods you have listed in your Podfile. Back in the command line, in the root directory of your project (the same location your Podfile is in), run the command pod install. Copy the following chunk of text and paste it into your Podfile: Note:If you are not familiar with CocoaPods or need help installing it, check out our very own CocoaPods tutorial.Ĭreate a file called ‘Podfile’ in the root directory of the starter project (To do this in command line simply use the command touch Podfile). Right now your app only contains instances of UITableView and MKMapView to provide the map functionality. MapKit is already set up in your project. Instead, you’ll create a virtual assistant for yourself - an app named “Agents Partner”.ĭownload the starter project for this tutorial here: AgentsPartner_Starter You need an assistant to keep notes and document your findings, but the agency doesn’t have an assistant to spare, nor the budget to hire a new one. Here’s the scenario: you’ve accepted a position as an intern in the National Park Service and your job is to document the species found in the biggest national parks in the United States.

Realm browser app how to#

You’ll learn how to link in the Realm framework, create models, perform queries, and update records. This Realm tutorial will introduce you to the basic features of Realm on iOS.

Realm browser app code#

Working with Realm results in more concise code - which makes it easier to write and read your code. Let specimens = try Realm().objects(Specimen).filter(predicate).sorted('name', ascending: true) What takes quite a few lines with Core Data can be achieved with far fewer lines in Realm: let predicate = NSPredicate(format: 'name BEGINSWITH searchString) Let results = try managedObjectContext?.executeFetchRequest(fetchRequest) Let sortDescriptor = NSSortDescriptor(key: 'name', ascending: true)įetchRequest.sortDescriptors = Let predicate = NSPredicate(format: 'name BEGINSWITH searchString)

Here’s some example Core Data code to fetch a set of records with a predicate and then sort the results: let fetchRequest = NSFetchRequest(entityName: 'Specimen') The Realm developers claim that their proprietary data storage solution is even faster than SQLite and Core Data. Unlike wrappers around Core Data such as MagicalRecord, Realm does not rely on Core Data or even a SQLite backend.

Most common functions such as querying the database consist of a single line of code! It’s fast, lightweight, and extremely simple to integrate in your project. Realm is a cross-platform mobile database solution designed specifically for mobile applications. Original tutorial was by team member Bill Kastanakis. Update note: This tutorial was updated for iOS 9 and Swift 2.2 by Bradley Johnson.