grails不会保存,但没有错误

Question

嗨,我有一个像下面这么简单的域名

// page 52 Bankruptcy Questions 
class FamilyLawFinancial{

    Date dateOfTheOrder ;
    boolean isPartyToFamilyLawProperty = false; 
    boolean isCurrentlyInvolvedInFamilyLawProperty = false;
    boolean isBecomeInvolvedInProceedings = false;

    static belongsTo=[person:Person];

    static constraints = {
        dateOfTheOrder(nullable:true);
        isPartyToFamilyLawProperty(nullable:false);
        isCurrentlyInvolvedInFamilyLawProperty(nullable:false);
        isBecomeInvolvedInProceedings(nullable:false);
    }

    String toString(){
        "${id}"
    }
}

这是保存数据的控制器:

    def save = {
    def person = Person.get(session.curperson.id);
    def obj = FamilyLawFinancial.findByPerson(person);
    if(obj == null){
        obj = new FamilyLawFinancial();
        obj.person = person ; 
    }
    params.dateOfTheOrder = myutil.formatDate(params.dateOfTheOrder);
    obj.properties = params;

    println(obj.hasErrors());
    println(obj.dateOfTheOrder);
    if(obj.hasErrors() && !obj.save(flush:true)){
        println("errors: ${obj.errors}");
        flash.message = "error found";
        println("save familyLawFinancial errors: ${errors}");
    }else{
        flash.message = "saved ";
    }
    redirect(controller:'frontPage', action:'index'); return ;
}

该obj.hasErrors()产生假(这意味着没有错误),但它不会保存到数据库中.知道如何调试这个吗？

PS:myutil.formatDate() - >为日期字符串等转换为19/11/2010到日期()

Answer 1

if(obj.hasErrors() && !obj.save(flush:true)){

&&如果之前的条件评估为,则不会评估条件false.

作为false && true评估false,从语言的角度来看,评估第二个条件是低效的.

毕竟,在这种情况下,obj.save(..)永远不会被调用.