使用外键插入 Grails 域对象

Question

我有两个域类 :

class User {
Client client
String firstName
String lastName
String email
String password
String address
String city
String state
String zip
String phone
Integer active
Date changedate

static belongsTo = [client : Client]

static constraints = {
    firstName(nullable: false, blank:false)
    lastName(nullable: false, blank:false)
    email(nullable: false, blank: false)
    address(nullable:false,blank:false)
    city(nullable:false,blank:false)
    state(nullable:false,blank:false)
    zip(nullable:false,blank:false)
    phone(nullable:false,blank:false)
    active(nullable:false,blank:false)
    changedate(nullable:false,blank:false)
}

}

class Client {
String name
String webaddress
String address
String city
String state
String zip
String phone
Integer active
Date changedate

static constraints = {
    name(unique:true, nullable: false, blank:false)
    address(nullable:false,blank:false)
    city(nullable:false,blank:false)
    state(nullable:false,blank:false)
    zip(nullable:false,blank:false)
    phone(nullable:false,blank:false)
    active(nullable:false,blank:false)
    changedate(nullable:false,blank:false)
}

}

现在两个表都生成了，用户到客户端之间存在一个外键。尽管阅读了 grails 帮助文档，但我终究无法弄清楚如何在相应的客户端中插入用户记录。这是我控制器中的当前代码。客户端插入正确，但不会插入用户记录。

def register(){

    Client newClient = new Client (
        name: params.Company,
        webaddress: params.WebAddress,
        address: params.CompanyAddress,
        city: params.CompanyCity,
        state: params.CompanyState,
        zip: params.CompanyZip,
        phone: params.CompanyPhone,
        active: 1,
        changedate: new Date()          
    )
    newClient.save()
    User user =  new User (
        client: newClient,
        firstName: params.FirstName,
        lastName: params.LastName,
        email: params.userName,
        password: params.Password,
        address: params.Address,
        city: params.City,
        state: params.State,
        zip: params.Zip,
        phone: params.Phone,
        active: 1,
        changedate: new Date()
    )
    user.save()

}

Answer 1

尝试下面的代码，它将指出验证问题的确切位置，同时将对象保存到数据库（如果有的话）：

def register(){

    Client newClient = new Client (
            name: params.Company,
            webaddress: params.WebAddress,
            address: params.CompanyAddress,
            city: params.CompanyCity,
            state: params.CompanyState,
            zip: params.CompanyZip,
            phone: params.CompanyPhone,
            active: 1,
            changedate: new Date()
    )
    if(newClient.save(flush: true)){
        User user =  new User (
                client: newClient,
                firstName: params.FirstName,
                lastName: params.LastName,
                email: params.userName,
                password: params.Password,
                address: params.Address,
                city: params.City,
                state: params.State,
                zip: params.Zip,
                phone: params.Phone,
                active: 1,
                changedate: new Date()
        )
        if(!user.save(flush: true)){
            user.errors.each {
                println it
            }
        }
    }
    else {
        newClient.errors.each {
            println it
        }
    }
}

使用外键插入 Grails 域对象

Insert Grails Domain object with foreign key

grails

model-view-controller

groovy

grails-orm