blocks|key|5501900|text|def+create
++@reportdate+=+Reportdate.new(reportdate_params)
++weekly_summary+=+getSOData(@reportdate.start_date,+@reportdate.end_date)

++@reportdate.questions+++=+weekly_summary[:question_ids]
++@reportdate.num_answers+=+weekly_summary[:answers]
++@reportdate.views+++++++=+weekly_summary[:views]

++respond_to+do+%7Cformat%7C
++++++if+@reportdate.save
+++++++++...|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|5501901|我认为答案超出了您的控制器的范围。我对上面的内容进行了更改，以反映操作中使用的数据，正如您所看到的，接收数据的主要方式来自weekly_summary方法|unstyled|offset|length|style|CODE|5501902|我会检查以下内容：|5501903|5501904|是否正在正确填充变量？|ordered-list-item|5501905|是否为.questions+Reportdate对象的属性？如果没有，你是否有一个attr_accessor|5501906|Your+Reportdate+object+needs+to+be+CamelCase+-+have+be+ReportDate+(这可能会导致问题)|5501907|在注释中提到，你的模型可能会因为验证问题而阻止保存。|5501908|5501909|5501910|所有这些都表明应用程序的其他部分存在问题|5501911|你能把你的Reportdate模型和weekly_summary代码贴出来吗？|5501912|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/CamelCase^0|0|1P|E|0|0|0|0|3|A|E|A|15|D|0|5|A|Z|9|1J|A|Z|9|0|0|0|0|0|0|5|A|I|E|0^^$0|@$1|2|3|4|5|6|7|1A|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|1B|8|@$G|1C|H|1D|I|J]]|9|@]|A|$]]|$1|K|3|L|5|F|7|1E|8|@]|9|@]|A|$]]|$1|M|3|-4|5|F|7|1F|8|@]|9|@]|A|$]]|$1|N|3|O|5|P|7|1G|8|@]|9|@]|A|$]]|$1|Q|3|R|5|P|7|1H|8|@$G|1I|H|1J|I|J]|$G|1K|H|1L|I|J]|$G|1M|H|1N|I|J]]|9|@]|A|$]]|$1|S|3|T|5|P|7|1O|8|@$G|1P|H|1Q|I|J]|$G|1R|H|1S|I|J]|$G|1T|H|1U|I|J]]|9|@$G|1V|H|1W|1|1X]]|A|$]]|$1|U|3|V|5|P|7|1Y|8|@]|9|@]|A|$]]|$1|W|3|-4|5|F|7|1Z|8|@]|9|@]|A|$]]|$1|X|3|-4|5|F|7|20|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|F|7|21|8|@]|9|@]|A|$]]|$1|10|3|11|5|F|7|22|8|@$G|23|H|24|I|J]|$G|25|H|26|I|J]]|9|@]|A|$]]|$1|12|3|-4|5|F|7|27|8|@]|9|@]|A|$]]]|13|$14|$5|15|16|17|A|$18|19]]]]

<pre><code>def create
 @reportdate = Reportdate.new(reportdate_params)
 weekly_summary = getSOData(@reportdate.start_date, @reportdate.end_date)

 @reportdate.questions = weekly_summary[:question_ids]
 @reportdate.num_answers = weekly_summary[:answers]
 @reportdate.views = weekly_summary[:views]

 respond_to do |format|
 if @reportdate.save
 ...
</code></pre>

I think the answer is outside the scope of your controller. I changed the above to reflect the data used in the action, and as you can see, the main ways you receive data are from the <code>weekly_summary</code> method

I would check these:

<ol>
<li>Is <code>weekly_summary</code> populating the variable correctly? </li>
<li>Is <code>.questions</code> an attribute of the <code>Reportdate</code> object? If not, do you have an <code>attr_accessor</code>?</li>
<li>Your <code>Reportdate</code> object needs to be <a href="http://en.wikipedia.org/wiki/CamelCase" rel="nofollow"><code>CamelCase</code></a> - should be <code>ReportDate</code> (this could cause an issue)</li>
<li>As mentioned in the comments, your model may prevent saving due to validation issues. </li>
</ol>

<hr>

All this points to some other part of the app having issues

Could you post your <code>Reportdate</code> model and <code>weekly_summary</code> code please?

blocks|key|4699472|text|感谢大家的回复。问题是我没有正确地设置实例变量。我不认为我对那部分代码做了改动，但它不可能按照它的编写方式工作，所以我必须这样做。现在，一切都已修复并正常工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4699473|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Thank you all for responding. The problem was that I was setting the instance variable incorrectly. I didn't think I made a change in that part of the code, but it was impossible to work the way it was written, so I must have. It is all fixed and working now.

I'm having a problem with a Rails 4 app that used to work perfectly fine. Now, an instance variable remains nil after being set. In the controller, I have the following code:

<pre><code>def create
 @reportdate = Reportdate.new(reportdate_params)
 weekly_summary = getSOData(@reportdate.start_date, @reportdate.end_date)
 @reportdate.questions = weekly_summary[:question_ids]
 @reportdate.num_answers = weekly_summary[:answers]
 @reportdate.views = weekly_summary[:views]
 respond_to do |format|
 if @reportdate.save
 ...
</code></pre>

When I run this, <code>@reportdate.num_answers</code> and <code>@reportdate.views</code> gets set, but <code>@reportdate.questions</code> remains <code>nil</code>. 

When I run it in the debugger, I verified that <code>weekly_summary[:question_ids]</code> equals 

<code>[21636454, 21539706, 21611661, 21632781, 21583630, 21614059, 21634704, 21615609, 21595829, 21564079, 21587196, 21537280]</code>. 

This used to work before and I have no idea why it's not working now.

Instance variable not being set in Rails 4

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有一个Rails 4应用程序的问题，这个应用程序过去工作得很好。现在，实例变量在设置后仍然为空。在控制器中，我有以下代码：def create  @reportdate = Reportdate.new(reportdate_params)  weekly_summary = getSOData(@reportdat...

问Rails 4中未设置实例变量
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