101 lines
3.3 KiB
Java
101 lines
3.3 KiB
Java
package fr.lirmm.aren.service.vm;
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import fr.lirmm.aren.model.vm.VMChoice;
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import fr.lirmm.aren.model.vm.VMTheme;
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import fr.lirmm.aren.service.AbstractService;
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import javax.enterprise.context.ApplicationScoped;
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import javax.persistence.TypedQuery;
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import javax.ws.rs.NotFoundException;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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/**
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* @author ANDRIAMBOLAHARIMIHANTA Havana on 08/07/2021
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* @project aren-1
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*/
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@ApplicationScoped
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public class VMThemeService extends AbstractService<VMTheme> {
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public VMThemeService(){
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super(VMTheme.class) ;
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}
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private TypedQuery<VMTheme> generateQuery(Long themeId, boolean withChoices, boolean withVotes){
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TypedQuery<VMTheme> query = getEntityManager().createQuery("SELECT vmt "
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+"FROM VMTheme vmt "
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+(withChoices? "LEFT JOIN FETCH vmt.choices co " : "")
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+(withVotes? "LEFT JOIN FETCH co.votes vo " : "")
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+ (themeId != null
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? "WHERE vmt.id = :themeId "
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: "WHERE vmt.id IS NOT NULL ")
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, VMTheme.class
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) ;
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if (themeId != null) {
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query.setParameter("themeId", themeId);
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}
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return query ;
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}
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public Set<VMTheme> findAll(boolean withChoices, boolean withVotes) {
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return new HashSet<VMTheme>(generateQuery(null, withChoices,withVotes).getResultList());
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}
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@Override
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public void edit(VMTheme theme) {
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super.edit(theme);
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}
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public VMTheme find(Long themeId, boolean withChoices, boolean withVotes) {
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List<VMTheme> themes = generateQuery(themeId, withChoices,withVotes).getResultList();
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if (themes.isEmpty()) {
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throw new NotFoundException();
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}
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return themes.get(0);
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}
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/**
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*
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* @param themeId
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*/
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public void delete(Long themeId) {
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this.transactionBegin();
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List<VMChoice> choices = getEntityManager().createQuery("SELECT c "
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+ "FROM VMChoice c "
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+ "WHERE c.themeId.id = :themeId ", VMChoice.class)
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.setParameter("themeId", themeId)
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.getResultList();
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if (!choices.isEmpty()) {
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for(VMChoice choice : choices){
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this.deleteVotes(choice.getId());
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}
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}
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try{
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getEntityManager().createQuery("DELETE FROM VMChoice choice "
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+ "WHERE choice.themeId.id = :themeId")
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.setParameter("themeId", themeId)
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.executeUpdate();
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getEntityManager().createQuery("DELETE FROM VMTheme theme "
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+ "WHERE theme.id = :themeId")
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.setParameter("themeId", themeId)
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.executeUpdate();
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}catch(Exception ex){
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System.err.println("Erreur : "+ex.getMessage());
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}
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this.commit();
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}
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/**
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*
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* @param choiceId
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*/
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public void deleteVotes(Long choiceId) {
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this.transactionBegin();
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getEntityManager().createQuery("DELETE FROM VMVote vote "
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+ "WHERE vote.subThemeId.id = :choiceId")
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.setParameter("choiceId", choiceId)
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.executeUpdate();
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this.commit();
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}
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}
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