TasksSQLiteOpenHelper.java

package com.ramostechie.android.taskmanager.tasks;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

public class TasksSQLiteOpenHelper extends SQLiteOpenHelper {

	public static final int VERSION = 3;
	public static final String DB_NAME = "tasks_db.sqlite";
	public static final String TASKS_TABLE  = "tasks";
	public static final String TASK_ID = "id";
	public static final String TASK_NAME = "name";
	public static final String TASK_DESCRIPTION = "description";
	public static final String TASK_COMPLETE  = "complete";
	public static final String TASK_ADDRESS = "address";
	public static final String TASK_LATITUDE = "latitude";
	public static final String TASK_LONGITUDE = "longitude";
	
	public TasksSQLiteOpenHelper (Context context) {		
		super(context,DB_NAME,null,VERSION);
	}
	
	@Override
	public void onCreate(SQLiteDatabase db){
		createTable(db);	
	}
	
	@Override
	public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
		updateTable(db,oldVersion,VERSION);
		
	}
	
	protected void createTable(SQLiteDatabase db){
		db.execSQL(
				"create table " + TASKS_TABLE +" (" +
				TASK_ID + " integer primary key autoincrement not null, " +
				TASK_NAME + " text, " +
				TASK_COMPLETE + " text, " +
				TASK_DESCRIPTION + " text, " +
				TASK_ADDRESS + " text, " +
				TASK_LATITUDE + " real, " +
				TASK_LONGITUDE + " real " +
				");"
			);
	}
	
	protected void updateTable(SQLiteDatabase db, int oldVersion, int newVersion){
		if (1 == oldVersion)
		{
		db.execSQL("alter table " + TASKS_TABLE +" add column " +	TASK_DESCRIPTION + " text;");
		db.execSQL("alter table " + TASKS_TABLE + " add column " + TASK_ADDRESS + " text");
		db.execSQL("alter table " + TASKS_TABLE + " add column " + TASK_LATITUDE + " real");
		db.execSQL("alter table " + TASKS_TABLE + " add column " + TASK_LONGITUDE + " real");
		}
		if (2 == oldVersion)
		{
		db.execSQL("alter table " + TASKS_TABLE + " add column " + TASK_ADDRESS + " text");
		db.execSQL("alter table " + TASKS_TABLE + " add column " + TASK_LATITUDE + " real");
		db.execSQL("alter table " + TASKS_TABLE + " add column " + TASK_LONGITUDE + " real");
		}
		
	}

}