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我有一个员工模型如下(为简洁起见)

 id
 firstname
 lastname
 stafftype (e.g. Chef, Driver, Team Leader)

我也有一个 StaffTimePeriod 模型如下

  id
  staffid
  date
  staffstatus  (e.g. Working, Holiday, Sick)

每个员工每天都有一个 StaffTimePeriod 记录。

我有正确的关联设置,允许我执行以下操作:

@stps = StaffTimePeriod.includes(:staff).where('date >= ? and date <= ?',begofweek,endofweek).order('staff.firstname,staff.lastname,date')

因此,我现在得到了按员工姓名和日期排序的特定周的所有 StaffTimePeriods。

我需要为特定周生成一个 XML 文件,以下列格式显示员工姓名、日期、员工状态。

<rows>
  <row>
    <cell>firstname+lastname</cell>
    <cell>stafftype</cell>
    <cell>date (for Monday )</cell>
    <cell>staffstatus (for Monday)</cell>
    <cell>date (for Tue )</cell>
    <cell>staffstatus (for Tue )</cell>
    <cell>date (for Wed)</cell>
    <cell>staffstatus (for Wed)</cell>
    <cell>date (for Thu )</cell>
    <cell>staffstatus (for Thu)</cell>
    <cell>date (for Fri)</cell>
    <cell>staffstatus (for Fri)</cell>
    <cell>date (for Sat)</cell>
    <cell>staffstatus (for Sat)</cell>
    <cell>date (for Sun)</cell>
    <cell>staffstatus (for Sun)</cell>
  </row>
  <row>
    <cell>firstname+lastname (Next Staff)</cell>
     ....
     ....
  </row>
</rows>

在 Builder 中,我试图迭代 @stps 但仅在 Staff.id 更改时输出 Staff.firstname+lastname 和 Staff.stafftype

这是我的生成器代码:

xml.instruct! :xml, :version => "1.0"
xml.tag!("rows") do
  tmpstaffid = nil
  weekdays = ['Mon','Tue','Wed','Thu','Fri','Sat','Sun']
  @stps.each do |stp|
    if tmpstaffid != nil && tmpstaffid != stp.staff.id
      xml.tag!("/row")
    end
    if tmpstaffid != stp.staff.id
      xml.tag!("row", {"id" => stp.staff.id})
      xml.tag!("cell", stp.staff.fullname)
      xml.tag!("cell", stp.staff.stafftype)
      tmpstaffid = stp.staff.id
    end
    if weekdays.include?(stp.stpdate.strftime('%a'))
      xml.tag!("cell", stp.stpstatus)
    else
      xml.tag!('cell','')
    end
  end
end

但是,这给了我以下输出:

    <rows>
      <row id="4"/>
      <cell>Fname4 Lname4</cell>
      <cell>4</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      <cell>79</cell>
      </row/>
      <row id="5" />
      .....

      </row/>
    </rows>

正如您所看到的,开始'<row>'也包含一个终止/>

我需要的是一个 XML 标记,它表示这是一个起始 XML 标记,也是一个结束 XML 标记,可以独立创建而不是在do ... end循环中创建。

我可以独立于“do end”循环定义单独的开始和结束 XML 标记吗?如果没有,那么我该如何实现上述目标?

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