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u - mcpaste

u

Von h, 9 Jahre vorher, geschrieben in Java, aufgerufen 1'543 mal.

URL https://mcpaste.de/view/e82c2305 Einbetten

Paste herunterladen oder Rohtext anzeigen

mport android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import java.util.ArrayList;
import java.util.HashMap;
 
public class StudentRepo {
    private DBHelper dbHelper;
 
    public StudentRepo(Context context) {
        dbHelper = new DBHelper(context);
    }
 
    public int insert(Student student) {
 
        //Open connection to write data
        SQLiteDatabase db = dbHelper.getWritableDatabase();
        ContentValues values = new ContentValues();
        values.put(Student.KEY_age, student.age);
        values.put(Student.KEY_email,student.email);
        values.put(Student.KEY_name, student.name);
 
        // Inserting Row
        long student_Id = db.insert(Student.TABLE, null, values);
        db.close(); // Closing database connection
        return (int) student_Id;
    }
 
    public void delete(int student_Id) {
 
        SQLiteDatabase db = dbHelper.getWritableDatabase();
        // It's a good practice to use parameter ?, instead of concatenate string
        db.delete(Student.TABLE, Student.KEY_ID + "= ?", new String[] { String.valueOf(student_Id) });
        db.close(); // Closing database connection
    }
 
    public void update(Student student) {
 
        SQLiteDatabase db = dbHelper.getWritableDatabase();
        ContentValues values = new ContentValues();
 
        values.put(Student.KEY_age, student.age);
        values.put(Student.KEY_email,student.email);
        values.put(Student.KEY_name, student.name);
 
        // It's a good practice to use parameter ?, instead of concatenate string
        db.update(Student.TABLE, values, Student.KEY_ID + "= ?", new String[] { String.valueOf(student.student_ID) });
        db.close(); // Closing database connection
    }
 
    public ArrayList<HashMap<String, String>>  getStudentList() {
        //Open connection to read only
        SQLiteDatabase db = dbHelper.getReadableDatabase();
        String selectQuery =  "SELECT  " +
                Student.KEY_ID + "," +
                Student.KEY_name + "," +
                Student.KEY_email + "," +
                Student.KEY_age +
                " FROM " + Student.TABLE;
 
        //Student student = new Student();
        ArrayList<HashMap<String, String>> studentList = new ArrayList<HashMap<String, String>>();
 
        Cursor cursor = db.rawQuery(selectQuery, null);
        // looping through all rows and adding to list
 
        if (cursor.moveToFirst()) {
            do {
                HashMap<String, String> student = new HashMap<String, String>();
                student.put("id", cursor.getString(cursor.getColumnIndex(Student.KEY_ID)));
                student.put("name", cursor.getString(cursor.getColumnIndex(Student.KEY_name)));
                studentList.add(student);
 
            } while (cursor.moveToNext());
        }
 
        cursor.close();
        db.close();
        return studentList;
 
    }
 
    public Student getStudentById(int Id){
        SQLiteDatabase db = dbHelper.getReadableDatabase();
        String selectQuery =  "SELECT  " +
                Student.KEY_ID + "," +
                Student.KEY_name + "," +
                Student.KEY_email + "," +
                Student.KEY_age +
                " FROM " + Student.TABLE
                + " WHERE " +
                Student.KEY_ID + "=?";// It's a good practice to use parameter ?, instead of concatenate string
 
        int iCount =0;
        Student student = new Student();
 
        Cursor cursor = db.rawQuery(selectQuery, new String[] { String.valueOf(Id) } );
 
        if (cursor.moveToFirst()) {
            do {
                student.student_ID =cursor.getInt(cursor.getColumnIndex(Student.KEY_ID));
                student.name =cursor.getString(cursor.getColumnIndex(Student.KEY_name));
                student.email  =cursor.getString(cursor.getColumnIndex(Student.KEY_email));
                student.age =cursor.getInt(cursor.getColumnIndex(Student.KEY_age));
 
            } while (cursor.moveToNext());
        }
 
        cursor.close();
        db.close();
        return student;
    }
 

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mport android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import java.util.ArrayList;
import java.util.HashMap;
 
public class StudentRepo {
    private DBHelper dbHelper;
 
    public StudentRepo(Context context) {
        dbHelper = new DBHelper(context);
    }
 
    public int insert(Student student) {
 
        //Open connection to write data
        SQLiteDatabase db = dbHelper.getWritableDatabase();
        ContentValues values = new ContentValues();
        values.put(Student.KEY_age, student.age);
        values.put(Student.KEY_email,student.email);
        values.put(Student.KEY_name, student.name);
 
        // Inserting Row
        long student_Id = db.insert(Student.TABLE, null, values);
        db.close(); // Closing database connection
        return (int) student_Id;
    }
 
    public void delete(int student_Id) {
 
        SQLiteDatabase db = dbHelper.getWritableDatabase();
        // It's a good practice to use parameter ?, instead of concatenate string
        db.delete(Student.TABLE, Student.KEY_ID + "= ?", new String[] { String.valueOf(student_Id) });
        db.close(); // Closing database connection
    }
 
    public void update(Student student) {
 
        SQLiteDatabase db = dbHelper.getWritableDatabase();
        ContentValues values = new ContentValues();
 
        values.put(Student.KEY_age, student.age);
        values.put(Student.KEY_email,student.email);
        values.put(Student.KEY_name, student.name);
 
        // It's a good practice to use parameter ?, instead of concatenate string
        db.update(Student.TABLE, values, Student.KEY_ID + "= ?", new String[] { String.valueOf(student.student_ID) });
        db.close(); // Closing database connection
    }
 
    public ArrayList<HashMap<String, String>>  getStudentList() {
        //Open connection to read only
        SQLiteDatabase db = dbHelper.getReadableDatabase();
        String selectQuery =  "SELECT  " +
                Student.KEY_ID + "," +
                Student.KEY_name + "," +
                Student.KEY_email + "," +
                Student.KEY_age +
                " FROM " + Student.TABLE;
 
        //Student student = new Student();
        ArrayList<HashMap<String, String>> studentList = new ArrayList<HashMap<String, String>>();
 
        Cursor cursor = db.rawQuery(selectQuery, null);
        // looping through all rows and adding to list
 
        if (cursor.moveToFirst()) {
            do {
                HashMap<String, String> student = new HashMap<String, String>();
                student.put("id", cursor.getString(cursor.getColumnIndex(Student.KEY_ID)));
                student.put("name", cursor.getString(cursor.getColumnIndex(Student.KEY_name)));
                studentList.add(student);
 
            } while (cursor.moveToNext());
        }
 
        cursor.close();
        db.close();
        return studentList;
 
    }
 
    public Student getStudentById(int Id){
        SQLiteDatabase db = dbHelper.getReadableDatabase();
        String selectQuery =  "SELECT  " +
                Student.KEY_ID + "," +
                Student.KEY_name + "," +
                Student.KEY_email + "," +
                Student.KEY_age +
                " FROM " + Student.TABLE
                + " WHERE " +
                Student.KEY_ID + "=?";// It's a good practice to use parameter ?, instead of concatenate string
 
        int iCount =0;
        Student student = new Student();
 
        Cursor cursor = db.rawQuery(selectQuery, new String[] { String.valueOf(Id) } );
 
        if (cursor.moveToFirst()) {
            do {
                student.student_ID =cursor.getInt(cursor.getColumnIndex(Student.KEY_ID));
                student.name =cursor.getString(cursor.getColumnIndex(Student.KEY_name));
                student.email  =cursor.getString(cursor.getColumnIndex(Student.KEY_email));
                student.age =cursor.getInt(cursor.getColumnIndex(Student.KEY_age));
 
            } while (cursor.moveToNext());
        }
 
        cursor.close();
        db.close();
        return student;
    }

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A PHP Error was encountered

Severity: 8192

Message: strpos(): Non-string needles will be interpreted as strings in the future. Use an explicit chr() call to preserve the current behavior

Filename: database/DB_driver.php

Line Number: 1876