GSP/Groovy-g：每個都有對象陣列

我試圖在地圖上使用g:each標記，但GSP無法識別它。GSP/Groovy-g：每個都有對象陣列

的代碼是：

if(previousQuestions == null) 
    { 
     previousQuestions = [] 
    } 
    def obj = AnimaisTreeMap.get(curNode) 

    previousQuestions.push('question':obj.nodeDescription, 'answer': getDescOptionAnswer(optionAnswered))

而g：每個標籤是：

的輸出是：

[{question=vive na água, answer=Não}, {question=tem listras, answer=Sim}]

據我知道對象克：每個讀取可能在JSON格式「屬性：值」，但我的對象是「屬性=值」

我該如何解決它？

修訂

看到this link後，我找到了解決辦法。問題本身就是「向前」的功能，我把「之前的問題」傳遞給了另一個動作。而不是「參數」，正確的方法是「模型」。

 forward(action:'index', model: [curNode: nextNode.id, 
             previousNode: curNode, 
             curQuestion: curQuestion, 
             previousQuestions: answersTrace])

當我需要恢復「previousQuestions」時，我必須在控制器中使用「request」注入對象。在此之後，我的代碼是OK

1：此鏈接

來源

2015-12-21 André Luís Oliveira

顯示你的'g.each'標籤 – injecteer

'previousQuestions = []'這不是一個地圖 – injecteer

@ injecteer我剛剛添加了代碼。我也修改了標題，因爲是一組對象，而不是 –

你似乎是增加每次調用push()時間兩個地圖。嘗試創建要添加到地圖數組中的每個地圖，而不是僅傳遞單獨的鍵值對。

我相信這是你想要什麼：

previousQuestions.push(['question':obj.nodeDescription, 
         'answer': getDescOptionAnswer(optionAnswered)])

來源

2015-12-21 16:59:58

同樣的結果......我也試過以下高清singleItem =新的LinkedHashMap（） singleItem.question = obj.nodeDescription singleItem.answer = getDescOptionAnswer（optionAnswered） previousQuestions .push（singleItem） –

你看的東西很複雜def singleItem = [：]會做同樣的事情。你需要看看上面發送的對象的類，嘗試gsp中的.getClass和控制器中它們是否有所不同？如果是這樣，它可能是你如何在GSP上銷售變量 – Vahid

，該對象是在String讀取的 –

試試這個：

//This is a far better way of checking null strings 
//shorter and also checks for '' as well as null 
if(!previousQuestion) { 
    previousQuestions = [] 
} else { 
    //this segment you have not provided so as a test ensure it 
    //matches List element above that you have declared - take a look at console 
    println "this is probably your issue ${previousQuestions.getClass()} what is class here ????" 
} 

def obj = AnimaisTreeMap.get(curNode) 

// generate a map on the fly good for iterations, 
// even though this is not iterated. 

previousQuestions << ['questions': obj.nodeDescription as String, 
'answer': getDescOptionAnswer(optionAnswered) as String] 

//within genrated map above the elements have been converted to as String 
// Because you have not given the workings of getDescriptionAnswer 
// in theory you should not need as String this is just for testing 

render (view: 'something', model: [previousQuestions:previousQuestions])

來源

2015-12-21 17:44:59 Vahid

GSP/Groovy-g：每個都有對象陣列

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