persistence avec jpa

bonjour,j'ai un probleme:
dans ma base de donnee j'ai deus tables:mois(mois:int) et jours(jour:int)

-regle de gestion :dans un mois en peut avoir plusieurs jours et dans une jour ya + mois correspondant (manytomany)

-j'ai cree un bean Mois getter et setter avec annotation
-un autre bean jours getter au setter.
jusque la tout marche tres bien,mais dis que j'ajout dans le Bean Mois:
Code:

1 2 3 4 5 private Set<Jours> jours=new HashSet<Jours>; ... @ManyToMany getter setter
voila l'erreur
Code:

1 2 could not determine type for:java.util.Set,for columns:[org.hibernate.mapping.Column(jours)]

Ta classe Jour est bien annoté en tant que Entity ?

oui voila les deux bean:

Code:

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package gdc.domain.model;
 
import java.io.Serializable;
import java.util.Date;
import java.util.HashSet;
import java.util.Set;
 
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.ManyToMany;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.Table;
 
import org.hibernate.annotations.Cache;
import org.hibernate.annotations.CacheConcurrencyStrategy;
 
/**
 *
 * @author Abeel
 */
@Entity
@Table(name = "jours")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public class Jours implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    private Integer jour;
 
    public Jours() {
    }
 
    public Jours(Integer jour) {
        this.jour = jour;
    }
 
    public Integer getJour() {
        return jour;
    }
 
    public void setJour(Integer jour) {
        this.jour = jour;
    }
 
}

Code:

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package gdc.domain.model;
 
import java.io.Serializable;
import java.util.Date;
import java.util.HashSet;
import java.util.Set;
 
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.ManyToMany;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.OneToMany;
import javax.persistence.Table;
 
import org.hibernate.annotations.Cache;
import org.hibernate.annotations.CacheConcurrencyStrategy;
 
/**
 *
 * @author Abeel
 */
@Entity
@Table(name = "mois")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public class Mois implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    private Integer moi;
    private Set<Jours> jourse = new HashSet<Jours>();
 
    public Mois() {
    }
 
    public Mois(Integer moi) {
        this.moi = moi;
    }
 
    public Integer getMoi() {
        return moi;
    }
 
    public void setMoi(Integer moi) {
        this.moi = moi;
    }
    @ManyToMany
    @Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
    public Set<Jours> getJours() {
        return jourse;
    }
 
    public void setJours(Set<Jours> jours) {
        this.jourse = jours;
    }
    @Override
    public int hashCode() {
        int hash = 0;
        hash += (moi != null ? moi.hashCode() : 0);
        return hash;
    }
 
    @Override
    public boolean equals(Object object) {
        // TODO: Warning - this method won't work in the case the id fields are not set
        if (!(object instanceof Mois)) {
            return false;
        }
        Mois other = (Mois) object;
        if ((this.moi == null && other.moi != null) || (this.moi != null && !this.moi.equals(other.moi))) {
            return false;
        }
        return true;
    }
 
    @Override
    public String toString() {
        return "model.Mois[moi=" + moi + "]";
    }
 
}

ton code d'ajout n'est peut être pas bon, fais nous le voir complètement.

quel code d'ajout

voila ta phrase :
Code:

1 2 3 4 5 6 7 8 9 10 11 -j'ai cree un bean Mois getter et setter avec annotation -un autre bean jours getter au setter. jusque la tout marche tres bien,mais dis que j'ajout dans le Bean Mois: Code : private Set<Jours> jours=new HashSet<Jours>; ... @ManyToMany getter setter
Dans ton new, déjà il manque une parenthèse , en plus je vois pas où t'effectues l'ajout concret du jour dans le mois.

voila tu n'a pas bien saisie le problem si je fais ca :

Code:

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package gdc.domain.model;
 
import java.io.Serializable;
import java.util.Date;
import java.util.HashSet;
import java.util.Set;
 
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.ManyToMany;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.OneToMany;
import javax.persistence.Table;
 
import org.hibernate.annotations.Cache;
import org.hibernate.annotations.CacheConcurrencyStrategy;
 
/**
 *
 * @author Abeel
 */
@Entity
@Table(name = "mois")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public class Mois implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    private Integer moi;
    //private Set<Jours> jourse = new HashSet<Jours>();
 
    public Mois() {
    }
 
    public Mois(Integer moi) {
        this.moi = moi;
    }
 
    public Integer getMoi() {
        return moi;
    }
 
    public void setMoi(Integer moi) {
        this.moi = moi;
    }
    //@ManyToMany
    //@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
   // public Set<Jours> getJours() {
    //    return jourse;
    //}
 
    //public void setJours(Set<Jours> jours) {
     //   this.jourse = jours;
    //}
    @Override
    public int hashCode() {
        int hash = 0;
        hash += (moi != null ? moi.hashCode() : 0);
        return hash;
    }
 
    @Override
    public boolean equals(Object object) {
        // TODO: Warning - this method won't work in the case the id fields are not set
        if (!(object instanceof Mois)) {
            return false;
        }
        Mois other = (Mois) object;
        if ((this.moi == null && other.moi != null) || (this.moi != null && !this.moi.equals(other.moi))) {
            return false;
        }
        return true;
    }
 
    @Override
    public String toString() {
        return "model.Mois[moi=" + moi + "]";
    }
 
}

c'est a dire je desactive la partie //dans le code.marche tres bien
mais dis que j'active les // il me donne l'erreur precedent tu vois

voila mon fichier d'erreur:

Code:

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14 mai 2008 09:36:43 org.apache.catalina.core.AprLifecycleListener init
INFO: The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jdk1.6.0_02\bin;C:\Program Files\Apache Software Foundation\Tomcat 6.0\bin
14 mai 2008 09:36:43 org.apache.coyote.http11.Http11Protocol init
INFO: Initialisation de Coyote HTTP/1.1 sur http-8080
14 mai 2008 09:36:43 org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 516 ms
14 mai 2008 09:36:43 org.apache.catalina.core.StandardService start
INFO: Démarrage du service Catalina
14 mai 2008 09:36:43 org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.7
14 mai 2008 09:36:43 org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
14 mai 2008 09:36:44 org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring root WebApplicationContext
0    [main] WARN  gdc.domain.configuration.DataSourceFactory  - Initializing database connection pool.
 
15   [main] WARN  gdc.domain.configuration.DataSourceFactory  - No database configured in JNDI at "java:/comp/envjdbc/gdc"
328  [main] WARN  gdc.domain.configuration.DataSourceFactory  - MySQL database found.
1547 [main] ERROR org.springframework.web.context.ContextLoader  - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [gdc/domain/applicationContext-jpa.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: org.hibernate.MappingException: Could not determine type for: java.util.Set, for columns: [org.hibernate.mapping.Column(jour)]
Caused by: 
javax.persistence.PersistenceException: org.hibernate.MappingException: Could not determine type for: java.util.Set, for columns: [org.hibernate.mapping.Column(jour)]
	at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:698)
	at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:127)
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:218)
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:251)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1202)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1172)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:428)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:251)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:156)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:248)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:247)
	at org.springframework.beans.factory.BeanFactoryUtils.beansOfTypeIncludingAncestors(BeanFactoryUtils.java:257)
	at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.detectPersistenceExceptionTranslators(PersistenceExceptionTranslationInterceptor.java:121)
	at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.<init>(PersistenceExceptionTranslationInterceptor.java:77)
	at org.springframework.dao.annotation.PersistenceExceptionTranslationAdvisor.<init>(PersistenceExceptionTranslationAdvisor.java:70)
	at org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor.setBeanFactory(PersistenceExceptionTranslationPostProcessor.java:96)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1163)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:428)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:251)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:156)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:248)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160)
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:733)
	at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:496)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:337)
	at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:244)
	at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:187)
	at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:49)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3827)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4336)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:760)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:740)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920)
	at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.core.StandardService.start(StandardService.java:451)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: org.hibernate.MappingException: Could not determine type for: java.util.Set, for columns: [org.hibernate.mapping.Column(jour)]
	at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:266)
	at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:253)
	at org.hibernate.mapping.Property.isValid(Property.java:185)
	at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:410)
	at org.hibernate.mapping.RootClass.validate(RootClass.java:192)
	at org.hibernate.cfg.Configuration.validate(Configuration.java:1026)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1211)
	at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:691)
	... 52 more
14 mai 2008 09:36:47 org.apache.catalina.core.StandardContext listenerStart
GRAVE: Exception lors de l'envoi de l'évènement contexte initialisé (context initialized) à l'instance de classe d'écoute (listener) org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [gdc/domain/applicationContext-jpa.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: org.hibernate.MappingException: Could not determine type for: java.util.Set, for columns: [org.hibernate.mapping.Column(jour)]
Caused by: javax.persistence.PersistenceException: org.hibernate.MappingException: Could not determine type for: java.util.Set, for columns: [org.hibernate.mapping.Column(jour)]
	at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:698)
	at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:127)
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:218)
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:251)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1202)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1172)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:428)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:251)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:156)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:248)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:247)
	at org.springframework.beans.factory.BeanFactoryUtils.beansOfTypeIncludingAncestors(BeanFactoryUtils.java:257)
	at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.detectPersistenceExceptionTranslators(PersistenceExceptionTranslationInterceptor.java:121)
	at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.<init>(PersistenceExceptionTranslationInterceptor.java:77)
	at org.springframework.dao.annotation.PersistenceExceptionTranslationAdvisor.<init>(PersistenceExceptionTranslationAdvisor.java:70)
	at org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor.setBeanFactory(PersistenceExceptionTranslationPostProcessor.java:96)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1163)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:428)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:251)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:156)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:248)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160)
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:733)
	at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:496)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:337)
	at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:244)
	at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:187)
	at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:49)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3827)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4336)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:760)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:740)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920)
	at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.core.StandardService.start(StandardService.java:451)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: org.hibernate.MappingException: Could not determine type for: java.util.Set, for columns: [org.hibernate.mapping.Column(jour)]
	at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:266)
	at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:253)
	at org.hibernate.mapping.Property.isValid(Property.java:185)
	at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:410)
	at org.hibernate.mapping.RootClass.validate(RootClass.java:192)
	at org.hibernate.cfg.Configuration.validate(Configuration.java:1026)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1211)
	at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:691)
	... 52 more
14 mai 2008 09:36:47 org.apache.catalina.core.StandardContext start
GRAVE: Error listenerStart
14 mai 2008 09:36:47 org.apache.catalina.core.StandardContext start
GRAVE: Erreur de démarrage du contexte [/gdc] suite aux erreurs précédentes
14 mai 2008 09:36:47 org.apache.catalina.core.ApplicationContext log
INFO: Closing Spring root WebApplicationContext
14 mai 2008 09:36:47 org.apache.coyote.http11.Http11Protocol start
INFO: Démarrage de Coyote HTTP/1.1 sur http-8080
14 mai 2008 09:36:47 org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
14 mai 2008 09:36:47 org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/31  config=null
14 mai 2008 09:36:47 org.apache.catalina.startup.Catalina start
INFO: Server startup in 4406 ms

T'as visiblement un problème de conception ou d'incompréhension de JPA à mon avis: tu dis qu'à un jour on a +sieurs mois et à un mois correspond plusieurs jours donc on devrait avoir du ManyToMany dans les 2 entitys en désignant bien sur le coté propriétaire par un "mappedBy" que je ne vois nulle part. t sur de savoir ce que tu fais ? :lol:

J'ai plutot l'impression que tu vx faire du OneToMany, dans ce cas faut toujours un MappedBy, sinon c'est clair qu'il ne comprendra pas ce que tu vx faire.

c'est pas une question de connaissance.oui ta raison j'ai pas fait manytomany de l'autre coté.
mais je vois qu'il nya pas d'un outils de generation qui fais ca automatique (manytomany).il font tous la meme chose :decouper manytomany on onetomany.
comme meme j'ai resolus le problem avec eclipse j'ai généré le code du model et je fait copé coller dans mon projet.c'est tout ce que j'aime pas:mouarf::lol:

Ok tant mieux si ça marche. Mais ce serait bien que tu comprennes aussi pourquoi ça marchait pas.