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So in the last episode, I promise you that we're going to be able to view our data.
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But at the moment, we don't have the code set up yet so that we can see it in our table view.
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So how can we do this?
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Well, we first need to locate our file. And even though we don't need this data file path anymore because
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we're not using it to save our plist, we can still cut it, put it into our viewDidLoad,
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and we're going to print the file path for our documentDirectory under the userDomainMask.
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But without all the appending in the first and all of that, we just want to get a path to where the data
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is being stored for our current app.
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So if we run our app right now, we'll see that file path pop up in our debug console.
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So let's follow the clues. We're going into User,
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angelayu, Library, Developer. Instead of Xcode which is where we found our automatically generated code,
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instead, we're going to go into our CoreSimulator,
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and then we're going to go to Devices, and our current simulator is 8D49, something, something, something.
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We're going to go into Data, Containers., Data, and then we're going to go into Application, and the Application
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for our current Todoey app is 5BF, something, something, something.
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Now, inside here, instead of going into Library, Preferences, where we'll find our plist, instead we're
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going to go into Library and Application Support.
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Here is where you're going to find your DataModel.sqlite file
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and this contains our database.
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So whereas I've got this little icon that shows me that I've got an application that's able to open
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this file, you might just see something like this,
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which means that your operating system doesn't know how to open the file.
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And we can solve this easily by going to the App Store and we're going to search for SQLite.,
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so it's S-Q-L-I-T-E.
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And here, you can see a whole bunch of different applications that can help you manipulate, add, delete,
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or view your SQLite databases.
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And one that I quite like is Datum, and they've even got a free version which will be more than enough
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for our purposes in order to view our Core Data.
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So just go ahead and download and install Datum Free and you can follow along with me in the next steps
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to view our Core Data.
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Now, this is not the only option,
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there's a whole bunch of other applications. And you might already even have an app that allows you to
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manipulate SQLite databases.
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If you have a preference, then just go with whatever you like.
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We're using it for the most basic functionality. But if you never use an application to open SQLite
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databases or you've never even heard of what SQLite is, then just go with the free option.
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So once we've got that application installed, we can simply double click on our DataModel.SQLite,
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and I'm going to use Datum Free to show you how it works.
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So you might see some of these pop-ups "Upgrade Now!"
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Not now. We're going to try it for a little while
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while I show you how this works.
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And inside here, we've got this table called ZITEM.
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And her, if you scroll through the right, you'll see one attribute called ZDONE
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And one called ZTITLE.
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So if you ignore those "Zs," you can see that these are the names of our attributes. And done is set to 0
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which is false, and title is set to "Save the World!" which is what we added just now into our app,
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even though we're unable to load it up if we terminate our app.
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But you can see that the data is, in fact, being persisted. And right now, if I add a new item, let's say,
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"Buy Eggos," and hit Add Item, then you see it showing up in the table view because it's being loaded up from
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the array.
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But if we have a look over here to our item table and we refresh our data, then you can see that it's
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also being saved and persisted in our SQLite database.
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So up till now, we've seen how we can create a new Core Data data model, how we can save new items on new
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managed objects into the Core Data data model, and how we can view it using a SQLite applications
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such as data. In the next lesson,
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we're going to review some of those concepts that we've come across so far, and we're going to talk about
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some of these tricky things like persistentContainers and viewContext, and we're going to learn some
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of the fundamentals of Core Data.
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So for all of that and more, I'll see you on the next lesson.