com.aes.dao.impl.CoursesAssignedDaoImpl.java Source code

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Here is the source code for com.aes.dao.impl.CoursesAssignedDaoImpl.java

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package com.aes.dao.impl;

import com.aes.dao.CoursesAssignedDao;
import com.aes.model.CoursesAssigned;
import com.aes.util.HibernateUtil;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.hibernate.Criteria;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.criterion.Criterion;
import org.hibernate.criterion.Order;
import org.hibernate.criterion.Projections;
import org.hibernate.criterion.Restrictions;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

/**
 *
 * @author Bryan
 */
@Repository
public class CoursesAssignedDaoImpl implements CoursesAssignedDao {

    @Autowired
    private SessionFactory session;

    @Override
    public void add(CoursesAssigned assignment) {
        assignment.setAssignmentId(this.getNextId());
        session.getCurrentSession().save(assignment);
    }

    @Override
    public void edit(CoursesAssigned assignment) {
        session.getCurrentSession().update(assignment);
    }

    @Override
    public void delete(int assignmentId) {
        session.getCurrentSession().delete(this.getById(assignmentId));
    }

    @Override
    public CoursesAssigned getById(int assignmentId) {
        return (CoursesAssigned) session.getCurrentSession().get(CoursesAssigned.class, assignmentId);
    }

    @Override
    public List getAll() {
        return session.getCurrentSession().createCriteria(CoursesAssigned.class).addOrder(Order.asc("assignmentId"))
                .list();
    }

    @Override
    public int getNextId() {
        int nextNumber = 1;
        try {
            Integer nextInt = ((Integer) session.getCurrentSession().createCriteria(CoursesAssigned.class)
                    .setProjection(Projections.max("assignmentId")).uniqueResult()) + 1;
            if (nextInt == null) {
                return 1;
            }
            nextNumber = nextInt.intValue();

        } catch (Exception e) {

        }
        return nextNumber;
    }

    @Override
    public List getAllById(int userId) {
        List list = this.getAll();
        List tempList = new ArrayList();
        for (Object temp : list) {
            CoursesAssigned assignment = (CoursesAssigned) temp;
            if (assignment.getUserDetails().getUserId() == userId) {
                tempList.add(assignment);
            }
        }
        return tempList;
    }

    public void deleteAllAssignmentByUserId(int id) {
        String hql = "delete from coursses_assigned where assignmentId= :id";
        session.getCurrentSession().createQuery(hql).setInteger("id", id).executeUpdate();
    }

    public boolean isUserAlreadyAssigned(int userId, int courseId) {
        List list = this.getAll();
        for (Object temp : list) {
            CoursesAssigned assignment = (CoursesAssigned) temp;
            if (assignment.getUserDetails().getUserId() == userId
                    && assignment.getCourse().getCourseId() == courseId) {
                return true;
            }
        }
        return false;
    }

}