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Java Spring Basics Modeling, Storing, and Presenting Data Using @PathVariable to Create a Dynamic Detail Page

Kevin Michie
Kevin Michie
6,554 Points
Posted by Kevin Michie
Kevin Michie
6,554 Points

gif.favorite creates an error

adding this statement:

<a href="#" th:class="(${gif.favorite} ? 'un' : '') + 'mark favorite'"></a>

produces this error:

There was an unexpected error (type=Internal Server Error, status=500). Exception evaluating SpringEL expression: "gif.favorite" (gif-details:50)

2 Answers

Tomas Svojanovsky
Tomas Svojanovsky
26,680 Points
Tomas Svojanovsky
Tomas Svojanovsky
26,680 Points

I don't know why it works. I think you missed @ sign, because I had the same problem, I just compared with img tag and found the difference.

Example:

<a href="#" th:class="@{${gif.favorite} ? 'un' : ''} + 'mark favorite'"></a>
Alexander Nikiforov
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Alexander Nikiforov
Java Web Development Techdegree Graduate 22,175 Points
Alexander Nikiforov
.a{fill-rule:evenodd;}techdegree seal-36
Alexander Nikiforov
Java Web Development Techdegree Graduate 22,175 Points

If it is still relevant...

Check your getter name for favorite property. It should be public boolean isFavorite(). This way error will be removed. If you have this getter right though, please paste your Gif class and errors in log of Intellijidea (there should be more information, especially Thymeleaf error).