com.healthcit.cacure.dao.QuestionTableDao.java Source code

Introduction

Here is the source code for com.healthcit.cacure.dao.QuestionTableDao.java

Source

/*L
 * Copyright HealthCare IT, Inc.
 *
 * Distributed under the OSI-approved BSD 3-Clause License.
 * See http://ncip.github.com/edct-formbuilder/LICENSE.txt for details.
 */

package com.healthcit.cacure.dao;

import javax.persistence.Query;

import org.apache.commons.lang.Validate;
import org.apache.log4j.Logger;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import com.healthcit.cacure.model.TableQuestion;

public class QuestionTableDao extends BaseQuestionDao {
    @SuppressWarnings("unused")
    private static final Logger log = Logger.getLogger(QuestionTableDao.class);

    /**
     * @return Next Ord Number in ordered entities.
     */
    @Transactional(propagation = Propagation.SUPPORTS)
    public Integer calculateNextOrdNumber(Long formId) {
        String jpql = "select MAX(ord + 1) from TableQuestion q, FormElement e where q.parent_id=e.id and e.form.id = :formId";
        Query query = em.createQuery(jpql);
        query.setParameter("formId", formId);
        return (Integer) query.getSingleResult();

    }

    @Transactional(propagation = Propagation.REQUIRED)
    public void reorderQuestions(Long sourceQuestionId, Long targetQuestionId, boolean before) {

        Validate.notNull(sourceQuestionId);
        Validate.notNull(targetQuestionId);

        if (sourceQuestionId.equals(targetQuestionId)) {
            return;
        }

        Query query = em.createQuery("SELECT ord, form.id FROM TableQuestion WHERE id = :id");

        Object[] result = (Object[]) query.setParameter("id", sourceQuestionId).getSingleResult();
        int sOrd = (Integer) result[0];
        long sFormId = (Long) result[1];

        result = (Object[]) query.setParameter("id", targetQuestionId).getSingleResult();
        int tOrd = (Integer) result[0];
        long tFormId = (Long) result[1];

        Validate.isTrue(sFormId == tFormId); //reorder only inside one form

        if (sOrd == tOrd || (before && sOrd == tOrd - 1) || (!before && sOrd == tOrd + 1)) {
            return;
        } else if (sOrd < tOrd) {
            em.createQuery("UPDATE TableQuestion SET ord = ord - 1 WHERE ord > :sOrd and ord "
                    + (before ? "<" : "<=") + " :tOrd and form.id = :formId").setParameter("sOrd", sOrd)
                    .setParameter("tOrd", tOrd).setParameter("formId", sFormId).executeUpdate();
            em.createQuery("UPDATE TableQuestion SET ord = :tOrd WHERE id = :qId")
                    .setParameter("qId", sourceQuestionId).setParameter("tOrd", before ? tOrd - 1 : tOrd)
                    .executeUpdate();
        } else if (sOrd > tOrd) {
            em.createQuery("UPDATE TableQuestion SET ord = ord + 1 WHERE ord < :sOrd and ord "
                    + (before ? ">=" : ">") + " :tOrd and form.id = :formId").setParameter("sOrd", sOrd)
                    .setParameter("tOrd", tOrd).setParameter("formId", sFormId).executeUpdate();
            em.createQuery("UPDATE TableQuestion SET ord = :tOrd WHERE id = :qId")
                    .setParameter("qId", sourceQuestionId).setParameter("tOrd", before ? tOrd : tOrd + 1)
                    .executeUpdate();
        }
    }

    @Override
    public TableQuestion getById(Long id) {
        Query query = em.createQuery("from TableQuestion q where id = :Id");
        query.setParameter("Id", id);
        return (TableQuestion) query.getSingleResult();
    }

}