message_board | Django小练习，一个简易的留言板

You can just loop over the keys in the dictionary and then access the values behind those keys:

To change the text value of an element, you must change the value of the elements's text node.

Example -

You must return null or a loading state when the data isn't available

I have found out that if you use the "search" method and pass the "version" parameter as null, you get only the latest versions of the JournalArticle:

Your $data is an array of data, (see $query->getQuery()->getArrayResult() )

So your are trying to get attributes from an array instead of accessing them from the appropriate object.

Since you are already getting an array result and you want to put this in the name part of your json, you could just change your jsonResponse to :

It looks like your form is not submitting the data onclick="location.href='/app_dev.php/Message/Board/post'" I think this is sending a GET request before the form submits the POST request (thus the values are NULL).

I would recommend changing the onclickproperty of your submit buttons to call a javascript function that either:
A: collects the form data and makes an AJAX POST request to appropriate URL
OR
B: fills the form's action property with the correct URL and then allows the form to submit naturally.

What's likely happening is the first time that component renders coin is undefined. When the action returns, the props are updated, the component re-renders and coin is logged out.

Do something like this in render and it should work:

I've got some support from the Liferay Community, and found out how to fix it.

Above configuration is correct! But, the (liferay)service referencing the DDLFormEmailNotification, has this reference static / reluctant. I had to create a config file to drop in my osgi/configs folder, which defines the correct implementation. (My CustomDDLFormEmailNotificationSender).

My config file is named: com.liferay.dynamic.data.lists.form.web.internal.portlet.action.AddRecordMVCActionCommand.config

This is because I need to configure the AddRecordMVCAction command. (Configure references that are defined there as static / reluctant).

It contains:

As detailed here, @WebFluxText will autowire your @Controller beans, but in your example, you are not autowiring WebTestClient that would trigger this behaviour naturally, but building it with a CoinController that is instantiated with only a new, which is the reason of the problem IMO