50% working DB, new Constructor in Student Class,

app/build.gradle

@@ -25,4 +25,6 @@ dependencies {
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+    debugImplementation 'com.idescout.sql:sqlscout-server:4.1'
+    releaseImplementation 'com.idescout.sql:sqlscout-server-noop:4.1'
 }

app/src/main/java/at/ac/perg/htl/bhif16/coffeeapp/DrinkAdapter.java

@@ -2,6 +2,7 @@ package at.ac.perg.htl.bhif16.coffeeapp;
 
 import android.app.Activity;
 import android.content.Context;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -19,6 +20,7 @@ public class DrinkAdapter extends ArrayAdapter<Student> {
     Context context;
     int layoutResourceId;
     int i;
+
     ArrayList<Student> students = new ArrayList<Student>();
 
     public DrinkAdapter(Context context, int layoutResourceId,
@@ -27,8 +29,11 @@ public class DrinkAdapter extends ArrayAdapter<Student> {
         this.layoutResourceId = layoutResourceId;
         this.context = context;
         this.students = studs;
+
+
     }
 
+
     @Override
     public View getView(int position, View convertView, ViewGroup parent) {
         View item = convertView;
@@ -61,6 +66,10 @@ public class DrinkAdapter extends ArrayAdapter<Student> {
 
                 finalStudentWrapper.consumedDrinks.setText(student.getConsumedDrinks()+"");
                 student.setConsumedDrinks(student.getConsumedDrinks()+1);
+
+
+
+
             }
         });
 

app/src/main/java/at/ac/perg/htl/bhif16/coffeeapp/FileHelper.java

@@ -1,69 +0,0 @@
-package at.ac.perg.htl.bhif16.coffeeapp;
-
-import android.content.Context;
-import android.os.Environment;
-import android.util.Log;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStreamReader;
-
-public class FileHelper {
-    final static String fileName = "data.txt";
-    final static String path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/coffeeapp/readwrite/" ;
-    final static String TAG = FileHelper.class.getName();
-
-    public static  String ReadFile( Context context){
-        String line = null;
-
-        try {
-            FileInputStream fileInputStream = new FileInputStream (new File(path + fileName));
-            InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream);
-            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
-            StringBuilder stringBuilder = new StringBuilder();
-
-            while ( (line = bufferedReader.readLine()) != null )
-            {
-                stringBuilder.append(line + System.getProperty("line.separator"));
-            }
-            fileInputStream.close();
-            line = stringBuilder.toString();
-
-            bufferedReader.close();
-        }
-        catch(FileNotFoundException ex) {
-            Log.d(TAG, ex.getMessage());
-        }
-        catch(IOException ex) {
-            Log.d(TAG, ex.getMessage());
-        }
-        return line;
-    }
-
-    public static boolean saveToFile( String data){
-        try {
-            new File(path  ).mkdir();
-            File file = new File(path+ fileName);
-            if (!file.exists()) {
-                file.createNewFile();
-            }
-            FileOutputStream fileOutputStream = new FileOutputStream(file,true);
-            fileOutputStream.write((data + System.getProperty("line.separator")).getBytes());
-
-            return true;
-        }  catch(FileNotFoundException ex) {
-            Log.d(TAG, ex.getMessage());
-        }  catch(IOException ex) {
-            Log.d(TAG, ex.getMessage());
-        }
-        return  false;
-
-
-    }
-
-}
-

app/src/main/java/at/ac/perg/htl/bhif16/coffeeapp/MainActivity.java

@@ -8,6 +8,7 @@ import android.graphics.drawable.Drawable;
 import android.media.Image;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
@@ -17,17 +18,12 @@ import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
 import android.widget.BaseAdapter;
 import android.widget.Button;
-import android.widget.ImageView;
+
 import android.widget.ListView;
-import android.widget.SimpleAdapter;
-import android.widget.TextView;
-import android.widget.Toast;
 
-import org.w3c.dom.Text;
 
 import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
+
 
 public class MainActivity extends Activity {
 
@@ -45,13 +41,16 @@ public class MainActivity extends Activity {
 
         //TODO
         //add students
-        studentArray.add(new Student("Achleitner",0,R.drawable.achleitner));
-        studentArray.add(new Student("Aichinger",0,R.drawable.aichinger));
-        studentArray.add(new Student("Bodingbauer",0,R.drawable.bodingbauer));
-        studentArray.add(new Student("Bogdan",0,R.drawable.bogdan));
-        studentArray.add(new Student("Derntl",0,R.drawable.derntl));
-        studentArray.add(new Student("Diesenreiter",0,R.drawable.unknown));
-        studentArray.add(new Student("Forthofer",0,R.drawable.forthofer));
+        studentArray.add(new Student(0,"Achleitner",0,R.drawable.achleitner));
+        studentArray.add(new Student(1,"Aichinger",0,R.drawable.aichinger));
+        studentArray.add(new Student(2,"Bodingbauer",0,R.drawable.bodingbauer));
+        studentArray.add(new Student(3,"Bogdan",0,R.drawable.bogdan));
+        studentArray.add(new Student(4,"Derntl",0,R.drawable.derntl));
+        studentArray.add(new Student(5,"Diesenreiter",0,R.drawable.unknown));
+        studentArray.add(new Student(6,"Forthofer",0,R.drawable.forthofer));
+
+        UserDB db = new UserDB(this);
+        db.createDefaultNotesIfNeed();
 
         studentArrayAdapter = new DrinkAdapter(MainActivity.this, R.layout.listview_activity, studentArray);
         listview= (ListView) findViewById(R.id.list_view);

app/src/main/java/at/ac/perg/htl/bhif16/coffeeapp/Student.java

@@ -1,16 +1,29 @@
 package at.ac.perg.htl.bhif16.coffeeapp;
 
-public class Student {
+import java.io.Serializable;
+
+public class Student implements Serializable {
+
+    private int studentId;
     private String name;
     private int img;
     private int consumedDrinks;
 
-    public Student(String name, int consumedDrinks, int img) {
+
+    public Student(int studentId, String name, int consumedDrinks, int img) {
 
         this.name = name;
         this.consumedDrinks = consumedDrinks;
         this.img = img;
+        this.studentId = studentId;
+    }
+
+    public int getStudentId() {
+        return studentId;
+    }
 
+    public void setStudentId(int studentId) {
+        this.studentId = studentId;
     }
 
     public int getImage() {
@@ -27,6 +40,8 @@ public class Student {
     }
 
 
+
+
     public int getConsumedDrinks() {
         return consumedDrinks;
     }
@@ -34,4 +49,9 @@ public class Student {
     public void setConsumedDrinks(int consumedDrinks) {
         this.consumedDrinks = consumedDrinks;
     }
+
+    @Override
+    public String toString(){
+        return this.name;
+    }
 }

app/src/main/java/at/ac/perg/htl/bhif16/coffeeapp/UserDB.java

@@ -1,6 +1,8 @@
 package at.ac.perg.htl.bhif16.coffeeapp;
 
+import android.content.ContentValues;
 import android.content.Context;
+import android.database.Cursor;
 import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteOpenHelper;
 import android.util.Log;
@@ -10,28 +12,120 @@ import static android.content.Context.MODE_PRIVATE;
 public class UserDB extends SQLiteOpenHelper {
 
     private static final String DATABASE_NAME = "USERS.db";
-
     private static final int DATABASE_VERSION = 1;
+    private static final String TABLE_STUDENTS = "STUDENTS";
 
-    // Database creation sql statement
-    private static final String create_table = "CREATE TABLE IF NOT EXISTS students(id INTEGER PRIMARY KEY AUTOINCREMENT,name TEXT, drink INTEGER);";
+    private static final String COLUMN_STUDENT_ID = "Student_Id";
+    private static final String COLUMN_STUDENT_NAME = "Student_Name";
+    private static final String COLUMN_STUDENT_COUNT_DRINKS = "Student_Count";
 
-    public UserDB(Context context) {
-        super(context, DATABASE_NAME, null, DATABASE_VERSION);
+    public UserDB(Context context){
+        super(context, DATABASE_NAME,null,DATABASE_VERSION);
     }
 
-    // Method is called during creation of the database
+    //create Table
     @Override
-    public void onCreate(SQLiteDatabase database) {
-        database.execSQL(create_table);
+    public void onCreate(SQLiteDatabase db) {
+       Log.i("SQLite","GOOO...");
+       String query = "CREATE TABLE " + TABLE_STUDENTS + "("
+               + COLUMN_STUDENT_ID + " INTEGER PRIMARY KEY," + COLUMN_STUDENT_NAME + " TEXT,"
+               + COLUMN_STUDENT_COUNT_DRINKS + " INTEGER" + ")";
+       db.execSQL(query);
     }
 
-    // Method is called during an upgrade of the database,
     @Override
-    public void onUpgrade(SQLiteDatabase database,int oldVersion,int newVersion){
-        Log.w(UserDB.class.getName(),"Upgrading database from version " + oldVersion + " to "
-                + newVersion + ", which will destroy all old data");
-        database.execSQL("DROP TABLE IF EXISTS FridgeItem");
-        onCreate(database);
+    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+        Log.i("SQLite", "MyDatabaseHelper.onUpgrade ... ");
+        // Drop older table if existed
+        db.execSQL("DROP TABLE IF EXISTS " + TABLE_STUDENTS);
+
+        // Create tables again
+        onCreate(db);
+    }
+
+    public void createDefaultNotesIfNeed()  {
+        int count = this.getNotesCount();
+        if(count ==0 ) {
+            Student s1 = new Student(0,"Achleitner",0,0);
+            Student s2 = new Student(1,"Aichinger",2,0);
+
+            this.addNote(s1);
+            this.addNote(s2);
+            this.updateStudent(s1);
+        }
+
+    }
+
+    public int getNotesCount() {
+        Log.i("SQLite", "MyDatabaseHelper.getNotesCount ... " );
+
+        String countQuery = "SELECT  * FROM " + TABLE_STUDENTS;
+        SQLiteDatabase db = this.getReadableDatabase();
+        Cursor cursor = db.rawQuery(countQuery, null);
+
+        int count = cursor.getCount();
+
+        cursor.close();
+
+        // return count
+        return count;
+    }
+
+    public Student getNote(int id) {
+        Log.i("SQLite", "MyDatabaseHelper.getNote ... " + id);
+
+        SQLiteDatabase db = this.getReadableDatabase();
+
+        Cursor cursor = db.query(TABLE_STUDENTS, new String[] { COLUMN_STUDENT_ID,
+                        COLUMN_STUDENT_NAME, COLUMN_STUDENT_COUNT_DRINKS }, COLUMN_STUDENT_ID + "=?",
+                new String[] { String.valueOf(id) }, null, null, null, null);
+        if (cursor != null)
+            cursor.moveToFirst();
+
+        Student note = new Student(Integer.parseInt(cursor.getString(0)),cursor.getString(1),Integer.parseInt(cursor.getString(2)),Integer.parseInt(cursor.getString(3)));
+
+        // return note
+        return note;
     }
+
+    public void addNote(Student note) {
+        Log.i("SQLite", "MyDatabaseHelper.addNote ... " + note.getName());
+
+        SQLiteDatabase db = this.getWritableDatabase();
+
+        ContentValues values = new ContentValues();
+        values.put(COLUMN_STUDENT_ID, note.getStudentId());
+        values.put(COLUMN_STUDENT_NAME, note.getName());
+        values.put(COLUMN_STUDENT_COUNT_DRINKS, note.getConsumedDrinks());
+
+        // Inserting Row
+        db.insert(TABLE_STUDENTS, null, values);
+
+        // Closing database connection
+        db.close();
+    }
+
+    public void updateStudent(Student note) {
+        Log.i("SQLite", "MyDatabaseHelper.update ... " + note.getName());
+
+        SQLiteDatabase db = this.getWritableDatabase();
+
+        ContentValues values = new ContentValues();
+        values.put(COLUMN_STUDENT_ID, note.getStudentId());
+        values.put(COLUMN_STUDENT_NAME, note.getName());
+        values.put(COLUMN_STUDENT_COUNT_DRINKS, note.getConsumedDrinks());
+
+        // Inserting Row
+        db.update(TABLE_STUDENTS,values,"Student_Id="+note.getStudentId(),null);
+        Log.i("SQLite", "ANAL ... ");
+
+        // Closing database connection
+        db.close();
+    }
+
+
+
+
+
+
 }

build.gradle

@@ -18,7 +18,11 @@ allprojects {
     repositories {
         google()
         jcenter()
-        
+        maven {
+            url 'http://www.idescout.com/maven/repo/'
+            name 'IDEScout, Inc.'
+        }
+
     }
 }