[英]Grails read from one domain to another domain
I created 2 domain class which is 我创建了2个域类
Duty.groovy: Duty.groovy:
class Duty {
String username
String duty
}
User.groovy: User.groovy:
class User {
String username
}
I already assigned some users in Bootstrap.groovy, I want to create a duty list function to assigned duty to users. 我已经在Bootstrap.groovy中分配了一些用户,我想创建一个职责列表函数来为用户分配职责。 So in my duty list, it should include a drop-down list which contains list of users from User domain. 因此,在我的职责列表中,它应该包含一个下拉列表,其中包含来自“用户”域的用户列表。
But when I import testApp.User at my gsp (in Duty domain) file and created a taglib to display the userlist, my compiler shows that No such property. 但是,当我在gsp(在Duty域中)文件中导入testApp.User并创建一个taglib来显示用户列表时,我的编译器显示没有这样的属性。 I would like to ask for suggestions for best way to display the list of users from my Duty domain to User domain? 我想问一些建议,以最佳方式显示从我的责任域到用户域的用户列表?
Here is other code: SelectUserTagLib.groovy 这是其他代码:SelectUserTagLib.groovy
import HR_System.User
def userInstance = new User()
def displayType = { attrs,body ->
def name = attrs.name
out << "<select id=\"${name}\" name=\"${name}\" require=\"\" >"
out << "<g:each in='${userInstanceList}'' status='i' var='userInstance'>"
out << "<option value=\"${name}\">${fieldValue(bean: userInstance, field: "username")}</option>"
out << "</g:each>"
out << "</select>"
}
_form.gsp: _form.gsp:
<name:displayType name="username" />
I think you don't really need custom taglib for such purpose. 我认为您实际上不需要为此目的使用自定义taglib。 You can do it with simple g:select. 您可以使用简单的g:select来实现。
<g:select name="user"
from="${User.list()}"/>
You can read about it in grails docs: https://docs.grails.org/latest/ref/Tags/select.html . 您可以在grails文档中阅读它: https : //docs.grails.org/latest/ref/Tags/select.html 。
Please ask if you have any questions. 请询问您是否有任何疑问。
If you adjust your model to be really a domain model so it looks like: 如果您将模型调整为真正的域模型,则它看起来像:
class User {
String username
}
class Duty {
User user
String duty
}
then Grails would scaffold the GSP-view for your Duty
class automagically with the User
-dropdown included 那么Grails会自动使用您的“ User
下拉列表为您的Duty
类提供GSP视图
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