java.lang.IllegalArgumentException: column '_id' does not exist.
ok yes that is correct, though why im getting this message is what im confused about. if anything it would be column '_id2' that would make more sence. Can someone please tell me what im doing wrong and how i should fix it?
i have a database in the bellow format.
id2 LastEdit
1 2015-04-28 12:27:28
using the below to grab data from my table and put it into a int.
Cursor cursor = dbManager.fetch2();
final String[] from = new String[] { DatabaseHelper._ID2,
DatabaseHelper.TUT_EDIT };
final int[] to = new int[] { R.id.pix, R.id.LastEdit };
before converting it into a string
LastEdit =(R.id.LastEdit);
String TT = String.valueOf(LastEdit);
Log.i("lastingthe edit: ", TT);
my DBManager file
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.util.Log;
public class DBManager {
private DatabaseHelper dbHelper;
private Context context;
private SQLiteDatabase database;
public DBManager(Context c) {
context = c;
}
public DBManager open() throws SQLException {
dbHelper = new DatabaseHelper(context);
database = dbHelper.getWritableDatabase();
return this;
}
public void close() {
dbHelper.close();
}
public void insert(String id, String cat, String title, String datec, String datem, String name, String image, String video) {
ContentValues contentValue = new ContentValues();
contentValue.put(DatabaseHelper.TAG_TUTID, id);
contentValue.put(DatabaseHelper.TAG_CATID, cat);
contentValue.put(DatabaseHelper.TAG_TUTTITLE, title);
contentValue.put(DatabaseHelper.TAG_NAME, name);
contentValue.put(DatabaseHelper.TAG_DATEC, datec);
contentValue.put(DatabaseHelper.TAG_DATEM, datem);
contentValue.put(DatabaseHelper.TAG_IMAGE, image);
contentValue.put(DatabaseHelper.TAG_VIDEO, video);
database.insert(DatabaseHelper.TABLE_NAME, null, contentValue);
Log.d("testing insert: ", cat);
}
public void insert2(String edit) {
ContentValues contentValue = new ContentValues();
contentValue.put(DatabaseHelper.TUT_EDIT, edit);
database.insert(DatabaseHelper.TABLE_NAME2, null, contentValue);
Log.d("testing insert2: ", edit);
}
public Cursor fetch() {
String[] columns = new String[] { DatabaseHelper._ID, DatabaseHelper.TAG_TUTID, DatabaseHelper.TAG_CATID, DatabaseHelper.TAG_TUTTITLE, DatabaseHelper.TAG_NAME, DatabaseHelper.TAG_DATEC, DatabaseHelper.TAG_DATEM, DatabaseHelper.TAG_IMAGE, DatabaseHelper.TAG_VIDEO };
Cursor cursor = database.query(DatabaseHelper.TABLE_NAME, columns, null, null, null, null, null);
if (cursor != null) {
cursor.moveToFirst();
}
return cursor;
}
public Cursor fetch2() {
String[] columns = new String[] { DatabaseHelper._ID2, DatabaseHelper.TUT_EDIT };
Cursor cursor = database.query(DatabaseHelper.TABLE_NAME2, columns, null, null, null, null, null);
if (cursor != null) {
cursor.moveToFirst();
}
return cursor;
}
public int update(long _id, String id, String cat, String title, String datec, String datem, String name, String image, String video) {
ContentValues contentValues = new ContentValues();
contentValues.put(DatabaseHelper.TAG_TUTID, id);
contentValues.put(DatabaseHelper.TAG_CATID, cat);
contentValues.put(DatabaseHelper.TAG_TUTTITLE, title);
contentValues.put(DatabaseHelper.TAG_NAME, name);
contentValues.put(DatabaseHelper.TAG_DATEC, datec);
contentValues.put(DatabaseHelper.TAG_DATEM, datem);
contentValues.put(DatabaseHelper.TAG_IMAGE, image);
contentValues.put(DatabaseHelper.TAG_VIDEO, video);
Log.d("testing update: ", image);
int i = database.update(DatabaseHelper.TABLE_NAME, contentValues, DatabaseHelper._ID + " = " + _id, null);
return i;
}
public int update2(long _id, String edit) {
ContentValues contentValues = new ContentValues();
contentValues.put(DatabaseHelper.TUT_EDIT, edit);
Log.d("testing update2: ", edit);
int i = database.update(DatabaseHelper.TABLE_NAME2, contentValues, DatabaseHelper._ID2 + " = " + _id, null);
return i;
}
public void delete(long _id) {
database.delete(DatabaseHelper.TABLE_NAME, DatabaseHelper._ID + "=" + _id, null);
}
}
And my DBHelper file
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
public class DatabaseHelper extends SQLiteOpenHelper {
// Table Name
public static final String TABLE_NAME = "TODOS";
// Table columns
public static final String _ID = "_id";
public static final String TAG_TUTID = "tutID";
public static final String TAG_CATID = "catID";
public static final String TAG_TUTTITLE = "tutTitle";
public static final String TAG_NAME = "tutText";
public static final String TAG_DATEC = "tutDateCreated";
public static final String TAG_DATEM = "tutDateModified";
public static final String TAG_IMAGE = "imageID";
public static final String TAG_VIDEO = "videoID";
public static final String TABLE_NAME2 = "TOEDIT";
public static final String _ID2 = "_id2";
public static final String TUT_EDIT = "lastEdit";
// Database Information
static final String DB_NAME = "tuts.DB";
// database version
static final int DB_VERSION = 1;
// Creating table query
private static final String CREATE_TABLE = "create table " + TABLE_NAME + "(" + _ID
+ " INTEGER PRIMARY KEY AUTOINCREMENT, " + TAG_TUTID + " TEXT NOT NULL, " + TAG_CATID + " TEXT, " + TAG_TUTTITLE+ " TEXT, " + TAG_NAME+ " TEXT, " + TAG_DATEC+ " TEXT, " + TAG_DATEM+ " TEXT, " + TAG_IMAGE+ " TEXT, " + TAG_VIDEO+ " TEXT);";
private static final String CREATE_TABLE2 = "create table " + TABLE_NAME2 + "(" + _ID2
+ " INTEGER PRIMARY KEY AUTOINCREMENT, " + TUT_EDIT + " TEXT NOT NULL);";
public DatabaseHelper(Context context) {
super(context, DB_NAME, null, DB_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {db.execSQL(CREATE_TABLE);{db.execSQL(CREATE_TABLE2);
Log.d("testing create: ", DB_NAME);}}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME);
db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME2);
onCreate(db);
Log.d("testing delete: ", DB_NAME);
}
}
log
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.drox.codesync/com.example.drox.codesync.MainScreenActivity}: java.lang.IllegalArgumentException: column '_id' does not exist
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalArgumentException: column '_id' does not exist
at android.database.AbstractCursor.getColumnIndexOrThrow(AbstractCursor.java:303)
at android.widget.CursorAdapter.init(CursorAdapter.java:172)
at android.widget.CursorAdapter.<init>(CursorAdapter.java:149)
at android.widget.ResourceCursorAdapter.<init>(ResourceCursorAdapter.java:91)
at android.widget.SimpleCursorAdapter.<init>(SimpleCursorAdapter.java:104)
at com.example.drox.codesync.MainScreenActivity.onCreate(MainScreenActivity.java:80)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
Thank you for your time.
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