public List<Teacher> getteacherrelatedtosubject(String subid) {
Transaction transaction = null;
Session session = null;
List<Teacher> list = new ArrayList<Teacher>();
try {
session = HibernateUtil.getSessionfactory().openSession();
transaction = session.beginTransaction();
Query query =
session.createQuery(
" from Teacher where (sub_ids like :sub_id1 or sub_ids like :sub_id2 or sub_ids like :sub_id3 or sub_ids = :sub_id4)");
query.setParameter("sub_id1", "%," + subid + ",%");
query.setParameter("sub_id2", subid + ",%");
query.setParameter("sub_id3", "%," + subid);
query.setParameter("sub_id4", subid);
// query.setParameter("regId", regId);
list = query.list();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (null != session) {
session.close();
}
}
return list;
}
public Boolean add(String teacherLoginName, int regid, String subjects, String suffix) {
Transaction transaction = null;
Session session = null;
List<RegisterBean> list = null;
List<Teacher> list2 = null;
try {
session = HibernateUtil.getSessionfactory().openSession();
transaction = session.beginTransaction();
Query query = session.createQuery("from RegisterBean where loginName=:userid and role=2");
query.setParameter("userid", teacherLoginName);
list = query.list();
if (list.size() > 0) {
RegisterBean bean = list.get(0);
Teacher teacher = new Teacher();
teacher.setClass_id(regid);
teacher.setUser_id(bean.getRegId());
teacher.setSub_ids(subjects);
teacher.setSuffix(suffix);
session.save(teacher);
transaction.commit();
// session.close();
return true;
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (null != session) {
session.close();
}
}
return false;
}
public String getTeachersPrefix(int teacherID, int regID) {
Transaction transaction = null;
Session session = null;
List<String> list = new ArrayList<String>();
try {
session = HibernateUtil.getSessionfactory().openSession();
transaction = session.beginTransaction();
Query query =
session.createQuery(
"select suffix from Teacher where user_id=:teacherID and class_id=:regID");
query.setParameter("teacherID", teacherID);
query.setParameter("regID", regID);
// query.setParameter("regId", regId);
list = query.list();
if (list.size() > 0) {
return list.get(0);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (null != session) {
session.close();
}
}
return "";
}
public Teacher getTeacher(int user_id, int class_id) {
Session session = null;
boolean status = false;
Transaction transaction = null;
String queryString = "from Teacher where user_id = :user_id and class_id=:class_id";
try {
session = HibernateUtil.getSessionfactory().openSession();
transaction = session.beginTransaction();
Query query = session.createQuery(queryString);
query.setInteger("user_id", user_id);
query.setInteger("class_id", class_id);
Teacher teacher = (Teacher) query.uniqueResult();
if (teacher != null) {
return teacher;
}
transaction.commit();
} catch (Exception e) {
e.printStackTrace();
} finally {
session.close();
}
return null;
}
public RegisterBean getTeacherDetailsFromID(int teacher_id) {
Session session = null;
Transaction transaction = null;
List queryResultList = null;
String queryString = "from RegisterBean where regId = :regId";
try {
session = HibernateUtil.getSessionfactory().openSession();
transaction = session.beginTransaction();
Query query = session.createQuery(queryString);
query.setInteger("regId", teacher_id);
queryResultList = query.list();
transaction.commit();
if (queryResultList.size() == 1) {
return (RegisterBean) queryResultList.get(0);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (null != session) {
session.close();
}
}
return null;
}
public List<TeacherDetails> getAllTeachersFromClass(int class_id) {
ArrayList<TeacherDetails> teachers = new ArrayList<TeacherDetails>();
Session session = null;
Transaction transaction = null;
List queryResultList = null;
String queryString = "from Teacher where class_id=:class_id";
try {
session = HibernateUtil.getSessionfactory().openSession();
transaction = session.beginTransaction();
Query query = session.createQuery(queryString);
query.setInteger("class_id", class_id);
queryResultList = query.list();
transaction.commit();
Iterator itr = queryResultList.iterator();
while (itr.hasNext()) {
Teacher entry = (Teacher) itr.next();
TeacherDetails teacherDetails = new TeacherDetails();
teacherDetails.setTeacherId(entry.getUser_id());
teacherDetails.setSubjectIds(entry.getSub_ids());
teacherDetails.setTeacherBean(getTeacherDetailsFromID(entry.getUser_id()));
if (entry.getSuffix() != null) {
teacherDetails.setSuffix(entry.getSuffix());
} else {
teacherDetails.setSuffix("");
}
if (!entry.getSub_ids().equals("")) {
teacherDetails.setSubjects(getAssignedSubjects(entry.getSub_ids().split(",")));
} else {
teacherDetails.setSubjects(new ArrayList<Subject>());
}
teachers.add(teacherDetails);
}
return teachers;
} catch (Exception e) {
e.printStackTrace();
} finally {
if (null != session) {
session.close();
}
}
return null;
}
public Integer getTeacherCount(int regID) {
Transaction transaction = null;
Session session = null;
List<Long> list = new ArrayList<Long>();
try {
session = HibernateUtil.getSessionfactory().openSession();
transaction = session.beginTransaction();
Query query = session.createQuery("select count(*) from Teacher where class_id=:class_id");
query.setParameter("class_id", regID);
list = query.list();
if (list.size() > 0) {
return list.get(0).intValue();
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (null != session) {
session.close();
}
}
return list.get(0).intValue();
}
public List getTeachersClass(int regID) {
Session session = null;
boolean status = false;
Transaction transaction = null;
List classids = null;
String queryString = "select class_id from Teacher where user_id = :user_id";
try {
session = HibernateUtil.getSessionfactory().openSession();
transaction = session.beginTransaction();
Query query = session.createQuery(queryString);
query.setInteger("user_id", regID);
classids = query.list();
transaction.commit();
} catch (Exception e) {
e.printStackTrace();
} finally {
session.close();
}
return classids;
}
public boolean updateDb(Teacher teacher) {
boolean status = true;
Session session = null;
Transaction transaction = null;
try {
session = HibernateUtil.getSessionfactory().openSession();
transaction = session.beginTransaction();
session.saveOrUpdate(teacher);
transaction.commit();
} catch (Exception e) {
status = false;
e.printStackTrace();
if (null != transaction) {
transaction.rollback();
}
} finally {
if (null != session) {
session.close();
}
}
return status;
}
public List getSubjectTeacher(String subid) {
Transaction transaction = null;
Session session = null;
List<RegisterBean> list = null;
List<Teacher> list2 = null;
try {
session = HibernateUtil.getSessionfactory().openSession();
transaction = session.beginTransaction();
Query query = session.createQuery("select user_id from Teacher where sub_ids like :sub_ids");
query.setParameter("sub_ids", "%," + subid + ",%");
list = query.list();
// session.close();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (null != session) {
session.close();
}
}
return list;
}
public Boolean isTeacherExists(String teacherLoginName, int regid) {
Transaction transaction = null;
Session session = null;
List<RegisterBean> list = null;
List<Teacher> list2 = null;
try {
session = HibernateUtil.getSessionfactory().openSession();
transaction = session.beginTransaction();
Query query = session.createQuery("from RegisterBean where loginName=:userid and role=2");
query.setParameter("userid", teacherLoginName);
list = query.list();
if (list.size() > 0) {
RegisterBean bean = list.get(0);
Teacher teacher = new Teacher();
teacher.setClass_id(regid);
teacher.setUser_id(bean.getRegId());
query = session.createQuery("from Teacher where user_id=:userid and class_id=:regid");
query.setParameter("userid", teacher.getUser_id());
query.setParameter("regid", teacher.getClass_id());
list2 = query.list();
if (list2.size() > 0) {
return true;
} else {
return false;
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (null != session) {
session.close();
}
}
return false;
}
public List<Subject> getTeacherSubjects(int teacherID, int classID) {
Transaction transaction = null;
Session session = null;
List<Subject> list = new ArrayList<Subject>();
List<String> subjectids = new ArrayList<String>();
try {
session = HibernateUtil.getSessionfactory().openSession();
transaction = session.beginTransaction();
Query query =
session.createQuery(
"select sub_ids from Teacher where user_id=:teacher_id and class_id=:class_id");
query.setParameter("class_id", classID);
query.setParameter("teacher_id", teacherID);
subjectids = query.list();
List<Integer> subids = new ArrayList<Integer>();
if (subjectids.size() > 0) {
String[] ids = subjectids.get(0).split(",");
int i = 0;
while (i < ids.length) {
subids.add(Integer.parseInt(ids[i]));
i++;
}
query = session.createQuery("from Subject where subjectId in :subjectId");
query.setParameterList("subjectId", subids);
list = query.list();
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (null != session) {
session.close();
}
}
return list;
}
public Boolean isTeacherRegistered(String teacherLoginName) {
Transaction transaction = null;
Session session = null;
List<RegisterBean> list = null;
try {
session = HibernateUtil.getSessionfactory().openSession();
transaction = session.beginTransaction();
Query query = session.createQuery("from RegisterBean where loginName=:userid and role=:role");
query.setParameter("userid", teacherLoginName);
query.setParameter("role", 2);
list = query.list();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (null != session) {
session.close();
}
}
if (list.size() > 0) {
return true;
} else {
return false;
}
}