Model your database in java and generate a Kony database interface for your app. Avoid coding WebSQL this way entirely.
It covers Operations: Insert, Update, DeleteWhere, GetWhere, GetByPrimaryKey, Clear, GetCountWhere Keep Section: Write your own code into the interface without it being deleted when you recreate it.
coming up: Relationsships, Joins
Everyone is invited to contribute :)
Create a submodule or directly clone/download the KonyDao Repository in your Kony project directory. Call it KonyDao for example. This is the Kony dao generator library which contains all the code required to generate your javascript file.
As a java project into your workspace or simply copy your code into your project of step 3.
Create a java (eclipse) project inside your kony project. Call it MyProjectDaoGenerator for example. Here you will model your database and trigger javacript file generation.
In your modeling project, add the KonyDao library to your build path. In eclipse, go to your project properties -> Java Build Path -> Projects -> Add -> then select "KonyDao" in our example.
Create a class following this example:
import static de.arvato.konydao.model.Property.INTEGER;
import static de.arvato.konydao.model.Property.TEXT;
import static de.arvato.konydao.model.Property.REAL;
import java.io.File;
import de.arvato.konydao.model.Entity;
import de.arvato.konydao.model.Schema;
public class KonyDaoSampleDaoGenerator {
public static final int DB_VERSION = 1;
public static void main(String[] args) {
Schema db = new Schema("konydaosampledb", "Kony Dao Sample Database", DB_VERSION);
// Create Table Customer
Entity customer = db.addEntity("Customer");
// Add columns to Customer
customer.addProperty(TEXT, "id").primaryKey();
customer.addProperty(TEXT, "firstname");
customer.addProperty(TEXT, "lastname");
customer.addProperty(INTEGER, "gender");
customer.addProperty(INTEGER, "age");
customer.addProperty(REAL, "satisfaction");
// Create Table Address
Entity address = db.addEntity("Address");
// Add columns to Address
address.addProperty(TEXT, "id").primaryKey();
address.addProperty(TEXT, "customerid");
address.addProperty(TEXT, "street");
address.addProperty(TEXT, "housenumber");
address.addProperty(TEXT, "zipcode");
address.addProperty(TEXT, "country");
// Generate the javascript file from modeled entities (this is the correct path of kony visualizer 7)
db.generate(new File("../modules/database.js"));
}
}
Execute your generator. You should have a generated javascript file called "database.js" (as in example) inside your modules folder of your kony project now.
Implement your code in your kony project following these examples:
Open your database and initialize it (create tables) if necessary
databaseMaster.openDatabase();
if(!kony.store.getItem("DBInit")) {
databaseMaster.initDatabase();
kony.store.setItem("DBInit", true);
}
Do your operations using these signatures
databaseMaster.insertCustomer(entity, successCallback, failCallback);
databaseMaster.updateCustomer(entity, successCallback, failCallback);
databaseMaster.deleteCustomer(whereString, successCallback, failCallback);
databaseMaster.getCustomers(successCallback, failCallback, whereString);
databaseMaster.getCustomer(primaryKey, successCallback, failCallback);
databaseMaster.clearCustomers(successCallback, failCallback);
databaseMaster.getCustomerCount(whereString, successCallback, failCallback);
databaseMaster.printCustomers();
where the entity might be as follows:
var customerNew = {
id:"1000",
firstname:"Hans",
lastname:"Zimmer",
gender:1,
age:59
};
Check out the sample project for more code how to implement the different functions. But honestly, just check out your generated interface. It's pretty intuative.
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