我能在Grails1中这样做吗:动态地创建数据输入表单

我不完全确定您在这里关于“将其数据保存到另一个表”的要求,但这里有一些想法。

对于您拥有的表,您需要的域类如下:

类标记{ 字符串类型

}

创建脚手架时,将自动为您生成ID字段。

如果这还不够,请在问题中添加更多信息。

我是 真的? 喜欢格雷斯。几周前,当我第一次使用它的时候,我没有意识到它是一种成熟的语言。事实上,不止这些。它是一个完整的Web堆栈,包含一个Web服务器和一个数据库。总之,我问题的简短回答是肯定的。你甚至可以说是的,当然!以下是我创建的taglib的代码:

import org.maflt.flashlit.pojo.Item
import org.maflt.flashlit.pojo.ItemTag
import org.maflt.flashlit.pojo.Metacollection
import org.maflt.flashlit.pojo.SetTagtype
import org.maflt.flashlit.pojo.Tag
import org.maflt.flashlit.pojo.Tagtype

/**
* @return Input form fields for all fields in the given Collection's Metadataset. Does not return ItemTags where TagType is not in the Metadataset.
*  
* In Hibernate, the
*
*    "from ItemTag b, Tag a where b.tag= a"
*
* query is a cross-join. The result of this query is a list of Object arrays where the first item is an ItemTag instance and the second is a Tag instance.
*
* You have to use e.g.
*
*    (ItemTag) theTags2[0][0]
*
* to access the first ItemTag instance.
* (http://stackoverflow.com/questions/1093918/findall-not-returning-correct-object-type)
**/
class AutoFormTagLib {

    def autoForm = {attrs, body ->
        //def masterList    = Class.forName(params.attrs.masterClass,false,Thread.currentThread().contextClassLoader).get(params.attrs.masterId)
        def theItem     = Item.get(attrs.itemId)
        def theCollection   = Metacollection.get(attrs.collectionId)
        def masterList  = theCollection.metadataSet.setTagtypes
        def theParams   = null
        def theTags     = null
        def itemTag     = null
        def tag         = null
        masterList.each {

            theParams   = [attrs.itemId.toLong(),it.tagtype.id]
            theTags     = ItemTag.findAll("from ItemTag d, Item c, Tag b, Tagtype a where d.item = c and d.tag = b and b.tagtype = a and c.id=? and a.id=?",theParams)

            for (int i=0;i<it.maxEntries;i++) {                 
                out << "<tr>\n"
                out << "    <td>${it.tagtype.tagtype}</td>\n"
                out << "    <td>\n"
                if (theTags[i]) {
                    itemTag     = (ItemTag) theTags[i][0]
                    //item  = (Item)    theTags[i][1]
                    tag     = (Tag) theTags[i][2] 
                    //itemTag   = (Tagtype) theTags[i][3]
                    out << "    <input name='${it.tagtype.tagtype}_${i}_${itemTag.id}' value='${tag.tag}' />\n";
                }
                else
                    out << "       <input name='${it.tagtype.tagtype}_${i}' />\n";
                out << "    </td>\n"
                out << "</tr>\n"
            }
        }

    }
}