ActiveAndroid - no fields are created

Question

I just tried to use ActiveAndroid. Following their tutorial from here, I set everything. I added the manifest entry:

application android:name="com.activeandroid.app.Application" ...

meta-data android:name="AA_DB_NAME" android:value="MyDb.db"
meta-data android:name="AA_DB_VERSION" android:value="1"

and created my model class:

package com.mycomp.Model;

import org.joda.time.LocalDate;
import org.odata4j.core.Guid;

import com.activeandroid.Model;
import com.activeandroid.annotation.Column;
import com.activeandroid.annotation.Table;

@Table(name = "Table1")
public class Table1 extends Model
{
  @Column(name = "Custom_ID")
  public Guid Custom_ID;
  @Column(name = "Name")
  public String Name;
  @Column(name = "Usr_type")
  public int Usr_type;
  @Column(name = "BDate")
  public LocalDate BDate;

  public MyEnum UserGroup;

  public Table1()
  {
    super();
  }

  public Table1(String name, LocalDate date, Guid custom_id,
      MyEnum userGroup)
  {
    super();
    Name = name;
    BDate = date;
    Custom_ID = custom_id;
    UserGroup = userGroup;
  }

}

After that, I used the save method (it allegedly creates the underlying database structure):

Table1 t1=new Table1();
t1.Name="Test";
t1.UserGroup = MyEnum.G1;
t1.save();

It threw an exception: table Table1 has no column named Name

I checked it with SQLite Browser. The table exists but contains only one field: Id. What else should I do to create the other fields?

Answer 1

There is another solution: change the AA_DB_VERSION metadata value and place the modification scripts to the assets/migrations folder so ActiveAndroid will use the upgrade function. It comes handy when there are already data in the database.

Source: https://github.com/pardom/ActiveAndroid/wiki/Schema-migrations