TYPO3 Core

This workaround must be used at the moment for every constants which might be left empty.

if ($this->conf['pid_list'] == '{$plugin.tt_products.pid_list}')    {
            $this->conf['pid_list'] = '';
        }

This now works for string constants. However the problem exists with files.

Constants:

plugin.tx_mytest {

  # cat=plugin.tx_mytest/file; type=file[html,htm,tmpl,txt]; label= Template File: HTML-template file

  file.templateFile = EXT:mytest/template/frontend_tmpl.html
}

If an extension mytest is installed, then there are 2 cases

1. The file "frontend_tmpl.html" does not exists.
2. The file "frontend_tmpl.html" does exist.

Then the result Setup in the TypoScript Object Browser will be (and in the $conf of the extension):
1.

templateFile = {$plugin.tx_mytest.file.templateFile}

2.

templateFile = typo3conf/ext/mytest/template/frontend_tmpl.html

The behaviour for the first case is bad. It gives no information that the file has not been found. And the extension has no information, what went wrong. And it is nowhere documented.

It should behave like this:

1.

templateFile =

Make it empty.

Or

1.

templateFile = ERROR not found: typo3conf/ext/mytest/template/frontend_tmpl.html

Or

1.

templateFile = ERROR mytest not installed: typo3conf/ext/mytest/template/frontend_tmpl.html

However the problem exists with files.

Can you write the versions of TYPO3 you tested on?

TYPO3 6.0.4

I performed a test with both 6.2.19 and the latest master 8.1-dev

The test:¶

TS Constants:

plugin.tx_mytest {
  file.templateFile = EXT:mytest/template/frontend_tmpl.html
}

TS setup:

plugin.tx_mytest {
  templateFile = {$plugin.tx_mytest.file.templateFile}
}

Results:¶

a) TYPO3 6.2.19 > TSOB:

[plugin]
   [tx_mytest]
      [templateFile] = {$plugin.tx_mytest.file.templateFile}

b) TYPO3 8.1-dev (latest master) > TSOB:

[plugin]
   [tx_mytest]
      [templateFile] = EXT:mytest/template/frontend_tmpl.html

7.6.6 behaves like master.