Base de données Android SQLite ne fonctionne pas

Question

Je travaille sur ma première application de base de données SQLite et après deux jours de difficultés, je demande enfin de l'aide aux professionnels.

Je ferme une force lorsque j'essaie d'afficher les données dans une vue de texte (méthode getNurseData). En outre, je ne pense pas que la méthode createEntry fonctionne non plus, car après que cette méthode est appelée, j'essaie d'effacer les contrôles EditText, avec un appel setText(""); mais les contrôles ne sont pas effacés.

est ici la classe DbCommunicator:

package com.deadEddie.staffingmanagement; 

import android.app.Dialog; 
import android.content.ContentValues; 
import android.content.Context; 
import android.database.Cursor; 
import android.database.SQLException; 
import android.database.sqlite.SQLiteDatabase; 
import android.database.sqlite.SQLiteDatabase.CursorFactory; 
import android.database.sqlite.SQLiteOpenHelper; 
import android.widget.TextView; 

public class DbCommunicator { 
// create fields for nurses table 
public static final String KEY_NURSE_ROWID = "_id"; 
public static final String KEY_LNAME = "_lName"; 
public static final String KEY_FNAME = "_fName"; 
public static final String KEY_EMAIL = "_eMail"; 
public static final String KEY_PHONE_PRIMARY = "_priPhone"; 
public static final String KEY_PHONE_SECONDARY = "_secPhone"; 
public static final String KEY_FTE = "_fte"; 
public static final String KEY_DUTY_STATUS = "Off Duty"; 

// create fields for rooms table 
public static final String KEY_ROOM_ROWID = "_id"; 
public static final String KEY_TYPE_PATIENT = "_id"; 
public static final String KEY_OCCUPIED = "NO"; 
public static final String KEY_ROOM_NUMBER = "_id"; 

// database values 
public static final String DATABASE_NAME = "Staffing_Assignments"; 
public static final String NURSE_TABLE = "Nurse_Table"; 
public static final String ROOM_TABLE = "Room_Table"; 
public static final int DATABASE_VERSION = 1; 

private DbHelper databaseHelper; 
private final Context dbContext; 
private SQLiteDatabase sqldb; 

private static class DbHelper extends SQLiteOpenHelper 
{ 

    public DbHelper(Context context) { 
     super(context, DATABASE_NAME, null, DATABASE_VERSION); 
     // TODO Auto-generated constructor stub 
    } 

    // create database if it does not already exist 
    @Override 
    public void onCreate(SQLiteDatabase db) { 
     // TODO Auto-generated method stub 
     db.execSQL("CREATE TABLE " + NURSE_TABLE + " (" + KEY_NURSE_ROWID 
       + "INTEGER PRIMARY KEY AUTOINCREMENT " + KEY_LNAME 
       + "TEXT NOT NULL" + KEY_FNAME + "TEXT NOT NULL" + KEY_EMAIL 
       + "TEXT NOT NULL" + KEY_PHONE_PRIMARY + "TEXT NOT NULL" 
       + KEY_PHONE_SECONDARY + "TEXT" + KEY_DUTY_STATUS 
       + "TEXT NOT NULL);"); 

     db.execSQL("CREATE TABLE " + ROOM_TABLE + " (" + KEY_ROOM_ROWID 
       + " INTEGER PRIMARY KEY AUTOINCREMENT " + KEY_TYPE_PATIENT 
       + " TEXT" + KEY_OCCUPIED + " TEXT NOT NULL" + KEY_ROOM_NUMBER 
       + " TEXT NOT NULL);"); 
    } // onCreate 

    // upgrade existing database 
    @Override 
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) 
    { 
     // TODO Auto-generated method stub 
     db.execSQL("DROP TABLE IF EXISTS " + NURSE_TABLE); 
     db.execSQL("DROP TABLE IF EXISTS " + ROOM_TABLE); 
     onCreate(db); 
    } 

} // DbHelper class 

public DbCommunicator(Context c) { 
    dbContext = c; 
} 

public void close() { 
    databaseHelper.close(); 
} 

public DbCommunicator open() throws SQLException { 
    databaseHelper = new DbHelper(dbContext); 
    sqldb = databaseHelper.getWritableDatabase(); 
    return this; 
} 

public long createEntry(String nurseLname, String nurseFname, 
     String nurseEmail, String priPhone, String secPhone, String nurseFTE) { 
    // TODO Auto-generated method stub 
    ContentValues cvCreate = new ContentValues(); 
    cvCreate.put(KEY_LNAME, nurseLname); 
    cvCreate.put(KEY_FNAME, nurseFname); 
    cvCreate.put(KEY_EMAIL, nurseEmail); 
    cvCreate.put(KEY_PHONE_PRIMARY, priPhone); 
    cvCreate.put(KEY_PHONE_SECONDARY, secPhone); 
    cvCreate.put(KEY_FTE, nurseFTE); 

    return sqldb.insert(NURSE_TABLE, null, cvCreate); 

} 

public String getNurseData() { 
    // TODO Auto-generated method stub 
    String[] columns = new String[] { KEY_NURSE_ROWID, KEY_LNAME, KEY_FNAME, 
      KEY_EMAIL, KEY_PHONE_PRIMARY, KEY_PHONE_SECONDARY }; 
    Cursor c = sqldb.query(NURSE_TABLE, columns, null, null, null, 
      null, null); 
    String result = ""; 

    int iRow = c.getColumnIndex(KEY_NURSE_ROWID); 
    int iLname = c.getColumnIndex(KEY_LNAME); 
    int iFname = c.getColumnIndex(KEY_FNAME); 
    int iEmail = c.getColumnIndex(KEY_EMAIL); 
    int iPriPhone = c.getColumnIndex(KEY_PHONE_PRIMARY); 
    int iSecPhone = c.getColumnIndex(KEY_PHONE_SECONDARY); 
    int iDutyStatus = c.getColumnIndex(KEY_DUTY_STATUS); 


    for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) { 
     result = result + " " + c.getString(iRow) + " " 
       + c.getString(iLname) + " " 
       + c.getString(iFname) + " " 
       + c.getString(iPriPhone) + " " + c.getString(iSecPhone) + " " 
       + c.getString(iEmail) + " " + c.getString(iDutyStatus) + "\n"; 
    } 
    c.deactivate(); 
    c.close(); 
    return result; 
} 

}// DbCommunicator class 

Voici la classe NursingAssignments qui tente de combler un TextView de la méthode getNurseData:

package com.deadEddie.staffingmanagement; 

import android.app.Activity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.TextView; 

public class NursingAssignments extends Activity implements OnClickListener 
{ 
Button addNurse; 
Button removeNurse; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    // TODO Auto-generated method stub 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.nurse_assignments); 
    displayNursingData(); 

    // set variable values and OnClickListeners 
    addNurse = (Button) findViewById(R.id.btnAddToRoster); 
    removeNurse = (Button) findViewById(R.id.btnRemoveFromRoster); 
    addNurse.setOnClickListener(this); 
    removeNurse.setOnClickListener(this); 
} 

@Override 
public void onClick(View arg0) { 
    // TODO Auto-generated method stub 
    switch (arg0.getId()) 
    { 
    case R.id.btnAddToRoster: 
     Intent add = new Intent("com.deadEddie.staffingmanagement.ADDNURSETOROSTER"); 
     startActivity(add); 
     break; 

    case R.id.btnRemoveFromRoster: 
     break; 
    } 
} 

public void displayNursingData() 
{ 
    TextView nurseRoster = (TextView) findViewById(R.id.tvSQLInfo); 
    DbCommunicator info = new DbCommunicator(this); 
    info.open(); 
    String data = info.getNurseData(); 
    info.close(); 
    nurseRoster.setText(data.toString()); 
} 

} 

Et voici la classe AddNurseToRoster, qui tente d'ajouter une entrée et désactivez les contrôles EditText:

package com.deadEddie.staffingmanagement; 

import android.app.Activity; 
import android.app.Dialog; 
import android.os.Bundle; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.TextView; 

public class AddNurseToRoster extends Activity implements OnClickListener { 
Button add; 
Button cancel; 
EditText lastName; 
EditText firstName; 
EditText eMail; 
EditText primaryPhone; 
EditText secondaryPhone; 
EditText fte; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    // TODO Auto-generated method stub 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.add_nurse_to_roster); 
    setControlValues(); 
} 

private void setControlValues() { 
    add = (Button) findViewById(R.id.btnAdd); 
    cancel = (Button) findViewById(R.id.btnCancel); 
    lastName = (EditText) findViewById(R.id.etFname); 
    eMail = (EditText) findViewById(R.id.etEmail); 
    primaryPhone = (EditText) findViewById(R.id.etPrimaryPhone); 
    secondaryPhone = (EditText) findViewById(R.id.etSecondaryPhone); 
    fte = (EditText) findViewById(R.id.etFTE); 

} // setVariableValues 

@Override 
public void onClick(View v) { 
    // TODO Auto-generated method stub 
    switch (v.getId()) { 
    case R.id.btnAdd: 
     try { 
      String nurseLname = lastName.getText().toString(); 
      String nurseFname = firstName.getText().toString(); 
      String nurseEmail = eMail.getText().toString(); 
      String priPhone = primaryPhone.getText().toString(); 
      String secPhone = secondaryPhone.getText().toString(); 
      String nurseFTE = fte.getText().toString(); 
      DbCommunicator database = new DbCommunicator(this); 
      database.open(); 
      database.createEntry(nurseLname, nurseFname, nurseEmail, 
        priPhone, secPhone, nurseFTE); 
      database.close(); 
      lastName.setText(""); 
      firstName.setText(""); 
      eMail.setText(""); 
      primaryPhone.setText(""); 
      secondaryPhone.setText(""); 
      fte.setText(""); 

     } catch (Exception e) { 
      String error = e.toString(); 
      Dialog d = new Dialog(this); 
      d.setTitle("An Error Has Occurred"); 
      TextView tv = new TextView(this); 
      tv.setText(error); 
      d.setContentView(tv); 
      d.show(); 
     } 
     break; 

    case R.id.btnCancel: 
     break; 
    } 
} // onClickView 
} 

Je reçois cette erreur Logcat, mais je ne suis pas sûr de savoir comment y remédier.

08-23 14:31:25.156: E/AndroidRuntime(577): ERROR: thread attach failed 
08-23 14:31:32.545: E/Database(583): Failure 1 (AUTOINCREMENT is only allowed on an INTEGER PRIMARY KEY) on 0x136ea8 when preparing 'CREATE TABLE Nurse_Table (_idINTEGER PRIMARY KEY AUTOINCREMENT, _lNameTEXT NOT NULL,_fNameTEXT NOT NULL_eMailTEXT NOT NULL,_priPhoneTEXT NOT NULL,_secPhoneTEXT,Off DutyTEXT NOT NULL);'. 
08-23 14:31:32.555: E/AndroidRuntime(583): Uncaught handler: thread main exiting due to uncaught exception 
08-23 14:31:32.565: E/AndroidRuntime(583): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.deadEddie.staffingmanagement/com.deadEddie.staffingmanagement.NursingAssignments}: android.database.sqlite.SQLiteException: AUTOINCREMENT is only allowed on an INTEGER PRIMARY KEY: CREATE TABLE Nurse_Table (_idINTEGER PRIMARY KEY AUTOINCREMENT, _lNameTEXT NOT NULL,_fNameTEXT NOT NULL_eMailTEXT NOT NULL,_priPhoneTEXT NOT NULL,_secPhoneTEXT,Off DutyTEXT NOT NULL); 
08-23 14:31:32.565: E/AndroidRuntime(583): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2496) 
08-23 14:31:32.565: E/AndroidRuntime(583): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512) 
08-23 14:31:32.565: E/AndroidRuntime(583): at android.app.ActivityThread.access$2200(ActivityThread.java:119) 
08-23 14:31:32.565: E/AndroidRuntime(583): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863) 
08-23 14:31:32.565: E/AndroidRuntime(583): at android.os.Handler.dispatchMessage(Handler.java:99) 
08-23 14:31:32.565: E/AndroidRuntime(583): at android.os.Looper.loop(Looper.java:123) 
08-23 14:31:32.565: E/AndroidRuntime(583): at android.app.ActivityThread.main(ActivityThread.java:4363) 
08-23 14:31:32.565: E/AndroidRuntime(583): at java.lang.reflect.Method.invokeNative(Native Method) 
08-23 14:31:32.565: E/AndroidRuntime(583): at java.lang.reflect.Method.invoke(Method.java:521) 
08-23 14:31:32.565: E/AndroidRuntime(583): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 
08-23 14:31:32.565: E/AndroidRuntime(583): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 
08-23 14:31:32.565: E/AndroidRuntime(583): at dalvik.system.NativeStart.main(Native Method) 
08-23 14:31:32.565: E/AndroidRuntime(583): Caused by: android.database.sqlite.SQLiteException: AUTOINCREMENT is only allowed on an INTEGER PRIMARY KEY: CREATE TABLE Nurse_Table (_idINTEGER PRIMARY KEY AUTOINCREMENT, _lNameTEXT NOT NULL,_fNameTEXT NOT NULL_eMailTEXT NOT NULL,_priPhoneTEXT NOT NULL,_secPhoneTEXT,Off DutyTEXT NOT NULL); 
08-23 14:31:32.565: E/AndroidRuntime(583): at android.database.sqlite.SQLiteDatabase.native_execSQL(Native Method) 
08-23 14:31:32.565: E/AndroidRuntime(583): at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1610) 
08-23 14:31:32.565: E/AndroidRuntime(583): at com.deadEddie.staffingmanagement.DbCommunicator$DbHelper.onCreate(DbCommunicator.java:52) 
08-23 14:31:32.565: E/AndroidRuntime(583): at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:106) 
08-23 14:31:32.565: E/AndroidRuntime(583): at com.deadEddie.staffingmanagement.DbCommunicator.open(DbCommunicator.java:87) 
08-23 14:31:32.565: E/AndroidRuntime(583): at com.deadEddie.staffingmanagement.NursingAssignments.displayNursingData(NursingAssignments.java:52) 
08-23 14:31:32.565: E/AndroidRuntime(583): at com.deadEddie.staffingmanagement.NursingAssignments.onCreate(NursingAssignments.java:21) 
08-23 14:31:32.565: E/AndroidRuntime(583): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 
08-23 14:31:32.565: E/AndroidRuntime(583): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459) 
08-23 14:31:32.565: E/AndroidRuntime(583): ... 11 more 
08-23 14:31:32.575: E/dalvikvm(583): Unable to open stack trace file '/data/anr/traces.txt': Permission denied 

sortie DDMS:

[2012-08-23 09:04:17 - StaffingManagement] New emulator found: emulator-5556 
[2012-08-23 09:04:17 - StaffingManagement] Waiting for HOME ('android.process.acore') to be launched... 
[2012-08-23 09:05:14 - StaffingManagement] HOME is up on device 'emulator-5556' 
[2012-08-23 09:05:14 - StaffingManagement] Uploading StaffingManagement.apk onto device 'emulator-5556' 
[2012-08-23 09:05:14 - StaffingManagement] Installing StaffingManagement.apk... 
[2012-08-23 09:05:24 - StaffingManagement] Success! 
[2012-08-23 09:05:24 - StaffingManagement] Starting activity com.deadEddie.staffingmanagement.MainActivity on device emulator-5556 
[2012-08-23 09:05:26 - StaffingManagement] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=com.deadEddie.staffingmanagement/.MainActivity } 

Answer 1

d'abord ... Vos colonnes à l'intérieur de l'instruction create doivent être avec devided ""

db.execSQL("CREATE TABLE " + NURSE_TABLE + " (" + KEY_NURSE_ROWID + "INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_LNAME + "TEXT NOT NULL," + KEY_FNAME + "TEXT NOT NULL," + KEY_EMAIL + "TEXT NOT NULL," + KEY_PHONE_PRIMARY + "TEXT NOT NULL,"     + KEY_PHONE_SECONDARY + "TEXT," + KEY_DUTY_STATUS     + "TEXT NOT NULL);"); 

db.execSQL("CREATE TABLE " + ROOM_TABLE + " (" + KEY_ROOM_ROWID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_TYPE_PATIENT+ " TEXT," + KEY_OCCUPIED + " TEXT NOT NULL," + KEY_ROOM_NUMBER + " TEXT NOT NULL);"); 

Je ne pense pas que cela Créer une déclaration va fonctionner sans elle ...