Question

我有一个用户域，其中包含安全主管的标记，以及一个位置域，用于保存我的网络应用中的所有位置。我想允许管理员从检查了安全主管标志的所有用户的选择列表中将主要和辅助安全员分配到任何位置。我有一个手工制作的MVC结构，但我正在玩脚手架，并遇到了一个我无法弄清楚的奇怪错误。我的位置域编码为

class Location {

    static hasMany = [users:User] 

    Integer id
    ...
    String address
    String city
    State state
    String zip
    ...
    User primarySecurityOfficer
    User secondarySecurityOfficer

    static mapping = {
        table 'location'
        id generator: 'identity'
        sort "state"
        version false
    }

    static constraints = {
        ...
        address(blank: false, nullable: false)
        city(blank: false, nullable: false)
        state(blank: false, nullable: false)
        zip(blank: false, nullable: false, size: 5..5)
        ...
        primarySecurityOfficer(blank: true, nullable: true)
        secondarySecurityOfficer(blank: true, nullable: true)
    }
}

我用grails generate-all Location生成了视图。我将生成的_form.gsp中的安全员选择修改为

<div class="fieldcontain ${hasErrors(bean: locationInstance, field: 'primarySecurityOfficer', 'error')}">
  <label for="primarySecurityOfficer">
    <g:message code="location.primarySecurityOfficer.label" default="Primary Security Officer" />
  </label>
  <g:select id="primarySecurityOfficer" name="primarySecurityOfficer" value="${locationInstance?.primarySecurityOfficer?.employeeNumber}" from="${securityOfficers}" optionKey="employeeNumber" optionValue="${{it.firstName + ' ' + it.lastName}}" noSelection="${['null':' ']}" disabled="${disabled}"/>
</div>

<div class="fieldcontain ${hasErrors(bean: locationInstance, field: 'secondarySecurityOfficer', 'error')}">
  <label for="secondarySecurityOfficer">
    <g:message code="location.secondarySecurityOfficer.label" default="Secondary Security Officer" />
  </label>
  <g:select id="secondarySecurityOfficer" name="secondarySecurityOfficer" value="${locationInstance?.secondarySecurityOfficer?.employeeNumber}" from="${securityOfficers}" optionKey="employeeNumber" optionValue="${{it.firstName + ' ' + it.lastName}}" noSelection="${['null':' ']}" disabled="${disabled}"/>
</div>

并且控制器创建并保存自动生成的操作（修改为发送安全员列表的视图）

def create() {
    def securityOfficers = User.findAll("from User as u where u.securityOfficer='1'")
    println params
    respond new Location(params), model: [ securityOfficers:securityOfficers ]
}

@Transactional
def save(Location locationInstance) {
    def securityOfficers = User.findAll("from User as u where u.securityOfficer='1'")

    if (locationInstance == null) {
        notFound()
        return
    }

    if (locationInstance.hasErrors()) {
        respond locationInstance.errors, view:'create', model: [ securityOfficers: securityOfficers ]
        return
    }

    locationInstance.save flush:true

    request.withFormat {
        form {
            flash.message = message(code: 'default.created.message', args: [message(code: 'locationInstance.label', default: 'Location'), locationInstance.id])
            redirect locationInstance
        }
        '*' { respond locationInstance, [status: CREATED], model: [ securityOfficers:securityOfficers ] }
    }
}

我得到的错误是，如果我选择任何安全人员并尝试保存新位置，我会收到错误Could not find matching constructor for: User(java.lang.String)。如果我将选择器留空，则位置将成功保存。有什么想法吗？

编辑1：有趣的发现从摆弄。如果我将视图代码更改为

，我可以成功将安全人员保存到位置

<div class="fieldcontain ${hasErrors(bean: locationInstance, field: 'primarySecurityOfficer', 'error')}">
  <label for="primarySecurityOfficer">
    <g:message code="location.primarySecurityOfficer.label" default="Primary Security Officer" />
  </label>
  <g:select id="primarySecurityOfficer.employeeNumber" name="primarySecurityOfficer.employeeNumber" value="${locationInstance?.primarySecurityOfficer?.employeeNumber}" from="${securityOfficers}" optionKey="employeeNumber" optionValue="${{it.firstName + ' ' + it.lastName}}" noSelection="${['null':' ']}" disabled="${disabled}"/>
</div>

<div class="fieldcontain ${hasErrors(bean: locationInstance, field: 'secondarySecurityOfficer', 'error')}">
  <label for="secondarySecurityOfficer">
    <g:message code="location.secondarySecurityOfficer.label" default="Secondary Security Officer" />
  </label>
  <g:select id="secondarySecurityOfficer.employeeNumber" name="secondarySecurityOfficer.employeeNumber" value="${locationInstance?.secondarySecurityOfficer?.employeeNumber}" from="${securityOfficers}" optionKey="employeeNumber" optionValue="${{it.firstName + ' ' + it.lastName}}" noSelection="${['null':' ']}" disabled="${disabled}"/>
</div>

但是现在我无法保存，没有安保人员。我尝试的错误是Unparseable number: "null"。

找不到匹配的构造函数Grails错误

0 个答案: