Added get and insert methods for database

SWADroid/src/es/ugr/swad/swadroid/model/DataBaseHelper.java

@@ -4,17 +4,24 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
 
 import android.content.Context;
+import android.database.Cursor;
 import android.database.SQLException;
 import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteException;
 import android.database.sqlite.SQLiteOpenHelper;
+import android.util.Log;
 
 public class DataBaseHelper extends SQLiteOpenHelper{
 	//The Android's default system path of your application database.
 	private static String DB_PATH = "/data/data/es.ugr.swad.swadroid/databases/";
 	private static String DB_NAME = "swadroid";
+    private static final int DATABASE_VERSION = 1;
+    private static final String TAG = "SWADroidDBAdapter";
 	private SQLiteDatabase swadroidDataBase;
 	private final Context context;
 	
@@ -24,7 +31,7 @@ public class DataBaseHelper extends SQLiteOpenHelper{
 	 * @param context
 	 */
 	public DataBaseHelper(Context context) {
-		super(context, DB_NAME, null, 1);
+		super(context, DB_NAME, null, DATABASE_VERSION);
 		this.context = context;
 	}
 	
@@ -109,8 +116,134 @@ public class DataBaseHelper extends SQLiteOpenHelper{
 	
 	@Override
 	public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+		Log.w(TAG, "Upgrading database!!!!!");
+        //db.execSQL("");
+        try {
+			copyDataBase();
+		} catch (IOException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
 	}
+	
 	// Add your public helper methods to access and get content from the database.
 	// You could return cursors by doing "return swadroidDataBase.query(....)" so it'd be easy
 	// to you to create adapters for your views.
+	public Cursor getCursorAllRows(String table)
+    {
+        String query = "SELECT * FROM " + table;
+        return swadroidDataBase.rawQuery(query, null);
+    }
+	
+	public boolean parseIntBool(int n) {
+		return n==0 ? true : false;
+	}
+	
+	public boolean parseStringBool(String s) {
+		return s.equals("Y") ? true : false;
+	}
+	
+	public int parseBoolInt(boolean b) {
+		return b ? 1 : 0;
+	}
+	
+	public String parseBoolString(boolean b) {
+		return b ? "Y" : "N";
+	}
+	
+	Model createObjectByTable(String table, Cursor rows) {
+		Model o = null;
+		
+		if(table.equals("courses")) {
+			o = new Course((Integer) rows.getInt(0),
+							(String) rows.getString(1));
+		} else if(table.equals("notices")) {
+			o = new Notice((Integer) rows.getInt(0),
+							(Integer) rows.getInt(1),
+							(String) rows.getString(2));
+		} else if(table.equals("students")) {
+			o = new Student((Integer) rows.getInt(0),
+							(String) rows.getString(1),
+							(String) rows.getString(2),
+							(String) rows.getString(3),
+							(String) rows.getString(4));
+		} else if(table.equals("tst_answers")) {
+			o = new TestAnswer((Integer) rows.getInt(0),
+					(Boolean) parseIntBool(rows.getInt(1)),
+					(String) rows.getString(2));
+		} else if(table.equals("tst_questions")) {
+			o = new TestQuestion((Integer) rows.getInt(0),
+					(String) rows.getString(1),
+					(String) rows.getString(2),
+					(Integer) rows.getInt(3),
+					(Boolean) parseStringBool(rows.getString(4)),
+					(Float) rows.getFloat(5));
+		}
+		
+		return o;
+	}
+	
+	public List<Model> getAllRows(String table)
+    {
+		List<Model> result = new ArrayList<Model>();		
+        Cursor rows = getCursorAllRows(table);
+        Model row = null;
+        
+        if(rows.moveToFirst()) {        	
+        	do {
+        		row = createObjectByTable(table, rows);
+        		result.add(row);
+        	} while (rows.moveToNext());
+        }
+        
+        return result;
+    }
+	
+	public void insertRow(String table, Model row)
+    {
+        String command = "INSERT INTO "  + table + " (?) VALUES (?)";
+        
+        if(row instanceof Course) {
+        	Course c = (Course) row;
+        	command += " (_id, name) VALUES ("
+        				+ c.getId() + ", "
+        				+ c.getName()
+        									+ ")";
+        } else if(row instanceof Notice) {
+        	Notice n = (Notice) row;
+        	command += " (_id, timestamp, description) VALUES ("
+        				+ n.getId() + ", "
+        				+ n.getTimestamp() + ", "
+        				+ n.getDescription()
+        													+ ")";
+        } else if(row instanceof Student) {
+        	Student s = (Student) row;
+        	command += " (_id, dni, firstname, surname1, surname2) VALUES ("
+        				+ s.getId() + ", "
+        				+ s.getDni() + ", "
+        				+ s.getFirstName() + ", "
+        				+ s.getSurname1() + ", "
+        				+ s.getSurname2()
+        																+ ")";
+        } else if(row instanceof TestAnswer) {
+        	TestAnswer a = (TestAnswer) row;
+        	command += " (_id, answer, correct) VALUES ("
+        				+ a.getId() + ", "
+        				+ a.getAnswer() + ", "
+        				+ parseBoolInt(a.getCorrect())
+        											+ ")";
+        } else if(row instanceof TestQuestion) {
+        	TestQuestion q = (TestQuestion) row;
+        	command += " (_id, anstype, numhits, question, score, shuffle) VALUES ("
+        				+ q.getId() + ", "
+        				+ q.getAnstype() + ", "
+        				+ q.getNumhits() + ", "
+        				+ q.getQuestion() + ", "
+        				+ q.getScore() + ", "
+        				+ parseBoolInt(q.getShuffle())
+        											+ ")";
+        }
+        
+        swadroidDataBase.execSQL(command, null);
+    }
 }