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1. #HOW TO INSTALL SQLITE 2 IN IONIC HOW TO#
2. #HOW TO INSTALL SQLITE 2 IN IONIC UPDATE#
3. #HOW TO INSTALL SQLITE 2 IN IONIC DOWNLOAD#
4. #HOW TO INSTALL SQLITE 2 IN IONIC FREE#

Now go ahead and change the app/services/ to:

#HOW TO INSTALL SQLITE 2 IN IONIC DOWNLOAD#

So within the setupDatabase we either start the download and import, or if we already did it before we can directly open the database (based on the name we stored).Īdditionally I added a BehaviorSubject so we can subscribe to the database stead and not perform any queries before it’s ready. This is just a very rough idea in here, it really depends on your case: Do you want to get the latest data on every app start? Do you just need the remote data once to seed the app? Think about what you need inside your app and then build out the logic for your needs. I’ve also added a bit of logic to store the name of the database (retrieved from the previous JSON file) inside Capacitor Storage, and also keep track whether we have already synced the initial data. Length() – returns the number of keys stored.įorEach(iteratorCallback) – Iterate through each key,value pair.Now our app can pull in that data and seed the initial SQLite database! Building a Database Serviceīefore we dive into the pages, let’s create the logic for the app upfront.īefore you can actually use the database, you should check whether you are running on Android, since you need to request permissions in that case! Remove(key) – Remove any value associated with this key.Ĭlear() – Clears the entire key value store. Other Member functions of Ionic 2 Storage Class We also have a input field where user enters company name and once he/she hits on Add button the data gets saved in storage engine via Ionic 2 Storage. Here we iterate through the variable items and then display individual array item on the view.

#HOW TO INSTALL SQLITE 2 IN IONIC FREE#

When the user enters some data in the input field(on the view – home.html) and submits, we check the previously stored data, if present, retrieve it, append the new data and then stored / set it back to the same key.įull Free Source Code: src/pages/home/home.html

Inside the constructor we get / fetch the stored data and assign it to a variable called items, which we iterate through and display on the home.html view. Next create a reference variable called storage. Import įirst we import the Storage library at the top. Ionic 2 doesn’t ship with this by default – we can use cordova plugin to make use of SQLite. If you want to store/persist serious data locally, then you can relay on SQLite.

#HOW TO INSTALL SQLITE 2 IN IONIC UPDATE#

You can create, read, update and delete records just like in RDBMS. SQLite is query based RDBMS like Storage System for Mobile Devices. If the device is running on low disk-space and the operating system decides to clear some data, then it might even clear the data stored in these storage engines.

But these storage engines are not reliable.

Since Ionic uses browser to render the application, we have access to browser based storage engines like localstorage, WebSQL and IndexedDB.

#HOW TO INSTALL SQLITE 2 IN IONIC HOW TO#

In this video lets learn how to store and retrieve JSON data in array format using Ionic 2 Storage with a very simple example. Other than how you import Ionic Storage in file, everything is same as present in this( Ionic Storage: Ionic 2) video tutorial. You can find it at Ionic Storage Module: Ionic 2. Ionic has made slight changes in how your import Ionic Storage inside file. If the app is being run in the web or as a Progressive Web App, Storage will attempt to use IndexedDB, WebSQL, and localstorage, in that order. For example, in native device it uses SQLite if available, if not it’ll fall back to use localstorage or IndexedDB – again, based on its availability. Ionic 2 comes with Ionic Storage library which makes use of storage engines based on its availability and its priority.