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我正在研究 Jspresso 框架（使用 Swing 启动项目）。我在组件之间做了NN双向关系，但是没有出现这些关系对应的字段。比如我有项目和学生的关系（一个学生可以有很多项目，一个项目可以有很多学生）。当我添加一个项目并在其详细视图中打开它时，我可以创建一个新学生并将其添加到项目中，但我不能将现有学生添加到项目中，也不能在搜索视图中根据其学生搜索项目。有没有办法显示这个？

这是我的观点.groovy

 // Implement your views here using the SJS DSL.

 form('Project.pane',
    parent:'decoratedView',
    labelsPosition:'ASIDE',
    columnCount:2,
    fields:     ['name','students','technologies','usesTrainers','technicalTrainers']){
    actionMap{
            actionList('FILE'){
                action(ref:'saveModuleObjectFrontAction')
                action(ref:'reloadModuleObjectFrontAction')
          }
    }
}

table'Project-students.table',
    parent:'decoratedView',
    actionMap:'masterDetailActionMap'

split_vertical'Project.proj.view',
    model:'Project',
    top:'Project.pane',
    bottom:'Project-students.table'



form('Student.pane',
    parent:'decoratedView',
    labelsPosition:'ASIDE',
    columnCount:2){
        actionMap{
                actionList('FILE'){
                action(ref:'saveModuleObjectFrontAction')
                action(ref:'reloadModuleObjectFrontAction')
          }
    }
}

table'Student-technologies.table',
    parent:'decoratedView',
    actionMap:'masterDetailActionMap'

split_vertical'Student.proj.view',
    model:'Student',
    top:'Student.pane',
    bottom:'Student-technologies.table'

form('Trainer.pane',
    parent:'decoratedView',
    labelsPosition:'ASIDE',
    columnCount:5)

form('Technology.pane',
    parent:'decoratedView',
    labelsPosition:'ASIDE',
    columnCount:5)

这是我的model.groovy

// Implement your domain here using the SJS DSL.

Interface('Traceable',
interceptors: 'TraceableLifecycleInterceptor',
uncloned: ['createTimestamp',
           'lastUpdateTimestamp','lastUpdatedBy','createdBy']) {
  string_64 'createdBy',readOnly:true
  date_time 'createTimestamp', timeZoneAware: true, readOnly: true
  string_64 'lastUpdatedBy', readOnly:true
  date_time 'lastUpdateTimestamp', timeZoneAware: true, readOnly: true
}

Entity ('Project', extend:'Traceable',toString:'name',
icon:'project.png',
rendered: ['name','lastUpdateTimestamp','lastUpdatedBy','createTimestamp','createdBy'],
queryable: ['name']){
string_64 'name'
set 'technologies', composition:true, ref:'Technology'
set 'technicalTrainers', composition:true, ref:'Trainer'
set 'usesTrainers', composition:true, ref:'Trainer'
set 'students', composition:true, ref:'Student'

}

Entity ('Technology', extend:'Traceable',toString:'name',
icon:'technology.png',
rendered: ['name','lastUpdateTimestamp','lastUpdatedBy','createTimestamp','createdBy'],
queryable: ['name']){
string_64 'name'
set 'projects', ref:'Project', reverse:'Project-technologies'
set 'studentsAbleToUseIt', ref:'Technology', reverse:'Student-technologies'
set 'trainersAbleToTeachIt', ref:'Technology', reverse:'Trainer-technologies'
}

Interface ('Person', extend:'Traceable'){
string_64 'lastname'
string_64 'firstname'
date_time 'createTimestamp', timeZoneAware: true, readOnly: true
date_time 'lastUpdateTimestamp', timeZoneAware: true, readOnly: true
}

 Entity ('Trainer',
    extend: 'Person', 
    toString:'firstname',
    icon:'trainer.png',
    rendered: ['firstname','lastname','lastUpdateTimestamp','lastUpdatedBy','createTimestamp','createdBy'],
    queryable: ['firstname','lastname']){
set 'projectsAsTechnicalTrainer', ref:'Project', reverse:'Project-technicalTrainers'
set 'projectsAsUsesTrainer', ref:'Project', reverse:'Project-usesTrainers'
set 'technologies', composition:true, ref:'Technology'
date_time 'createTimestamp', timeZoneAware: true, readOnly: true
date_time 'lastUpdateTimestamp', timeZoneAware: true, readOnly: true
}

Entity ('Student',
    extend: 'Person', 
    toString:'firstname',
    icon:'student.png',
    rendered: ['firstname','lastname','lastUpdateTimestamp','lastUpdatedBy','createTimestamp','createdBy'],
    queryable: ['firstname','lastname']){
set 'technologies', composition:true, ref:'Technology'
set 'projects', ref:'Project', reverse:'Project-students'
date_time 'createTimestamp', timeZoneAware: true, readOnly: true
date_time 'lastUpdateTimestamp', timeZoneAware: true, readOnly: true
}
4

1 回答 1

1

你绝对可以很容易地实现这两个目标。

1/ 一个N-N关系可以简单地看成是两个1-N关系。因此，您可以在面向视图和面向学生的视图上使用该Project-students关系。您可以使用 2 个不同的过滤器模块（一个 on和一个 on ），也可以通过添加一个额外的表格来补充您的第二级详细信息，该表格将在第一个表格详细信息中显示所选学生的信息。ProjectStudent-projectsProjectStudentProject.proj.viewStudent-projects

就像是 ：

split_vertical ('Project.proj.view',
  model:'Project',
  top:'Project.pane') {
  bottom {
    split_horizontal(
      left:  'Project-students.table',
      right: 'Student-projects.table',
      cascadingModels: true
    )
  }
}

2/关于选择和添加现有Project或Student到各自集合的能力，您可以使用自定义 LOV 操作，如Jspresso-CE 参考文档的第 1 章中所述。

就像是 ：

table('Project-students.table') {
  actionMap {
    actionList('EDIT'){
      action(parent:'lovAction',
        custom:[
          autoquery:false,
          entityDescriptor_ref:'Student',
          okAction_ref:'addAnyToMasterFrontAction'
        ]
      )
      action(ref:'removeAnyCollectionFromMasterFrontAction')
    }
  }
}

3/ 至于过滤Project方式Student（或相反），Jspresso 支持将集合属性定义为过滤器属性。在这种情况下，过滤器视图将为学生安装一个 LOV 来过滤项目。

如果您想在每个项目过滤器视图中默认使用它，请直接在模型上声明它。

就像是 ：

Entity ('Project'
        ...
        queryable : ['name', 'students']
        ...){
  ...
}
于 2015-10-23T17:15:40.283 回答