Grails使用不會產生預期結果的集合查詢域類

Question

（Grails 2.4.2）

我試圖獲取用戶可以訪問的故事列表。因此，故事的所有故事用戶都是故事的所有者，或者用戶處於故事的編輯集合中。我已經嘗試了許多不同的查詢，從createCriteria到編寫HQL。我可以查詢用戶是所有者的所有故事。我可以查詢用戶在編輯器集合中的所有故事，但是當我將查詢與OR..I一起輸入時，得不到正確的結果。

class Story { 
    String title 
    Date dateCreated 
    Date lastUpdated 
    String description 
    Boolean isPublic 
    List storyContent = [] 
    User owner 

    static belongsTo = [owner: User] 
    static hasMany = [storyContent : StoryContent, viewers : Viewer, editors : Editor] 
...more 


class Editor { 
    User user 
    static belongsTo = [story: Story] 

當我做下面的查詢：

def hql = "from Story as s left outer join s.editors as se where s.owner.username = 'joe'" 
def results = Story.executeQuery(hql) 

我得到正確的結果：

Result: [[com.storycreate.Story : 3, com.storycreate.Editor : 1], [com.storycreate.Story : 2, null]] 

喬的故事2和3，故事的主人現在我查詢所有Joe編輯的故事

def hql = "from Story as s left outer join s.editors as se where se.user.username='joe'" 
def results = Story.executeQuery(hql) 

，得到正確的結果：（喬既是編輯和老闆的故事3和story4編輯）

Result: [[com.storycreate.Story : 3, com.storycreate.Editor : 1], [com.storycreate.Story : 4, com.storycreate.Editor : 4]] 

現在

如果我結合這讓故事的一個列表，其中喬是所有者或編輯：

def hql = "from Story as s left outer join s.editors as se where (s.owner.username='joe' OR se.user.username='joe')" 
def results = Story.executeQuery(hql) 

我得到不正確的結果（失蹤的故事2，其中喬是老闆）

Result: [[com.storycreate.Story : 3, com.storycreate.Editor : 1], [com.storycreate.Story : 4, com.storycreate.Editor : 4]] 

最後，我想查詢給我所有的故事，其中isPublic爲TRUE或登錄用戶的列表是流量編輯或者故事的觀衆。但我似乎缺少對Hibernate如何在這裏工作的一些理解。

Answer 1

這種整合規範通行證我在2.4.3：

class StoryControllerIntSpec extends IntegrationSpec { 

    def setup() { 
     User joe = new User(userName: "joe").save() 
     User bar = new User(userName: "bar").save() 
     User foo = new User(userName: "foo").save() 

     // joe as both owner and editor 
     Story s1 = new Story(isPublic: true, title: "Story1", owner: joe) 
     Editor e1 = new Editor(user: joe) 
     s1.addToEditors(e1) 

     // joe only as owner 
     Story s2 = new Story(isPublic: true, title: "Story2", owner: joe) 
     Editor e2 = new Editor(user: foo) 
     s2.addToEditors(e2) 

     // joe only as editor 
     Story s3 = new Story(isPublic: true, title: "Story3", owner: bar) 
     Editor e3 = new Editor(user: joe) 
     s3.addToEditors(e3) 

     // joe not related to story 
     Story s4 = new Story(isPublic: true, title: "Story4", owner: foo) 
     Editor e4 = new Editor(user: bar) 
     s4.addToEditors(e4) 

     [s1, s2, s3, s4]*.save() 
    } 

    void "test something"() { 
     given: 
     StoryController controller = new StoryController() 

     when: 
     def model = controller.index() 

     then: 
     model.result.size() == 3 
     def stories = model.result.collect { it[0] } 
     stories.size() == 3 
     stories*.title == ['Story1', 'Story2', 'Story3'] 
    } 
} 

// Controller 
class StoryController { 

    def index() { 
     def hql = "from Story as s left outer join s.editors as se \ 
        where (s.owner.userName='joe' OR se.user.userName='joe')" 
     def results = Story.executeQuery(hql) 

     [result: results] 
    } 
}