empty placeholder in template

[Walter456]

Hello !

I looking for a way to define placeholders with an empty value.

For example:

---------------------

...

<form>

    <input name="firstname" value"{firstname}">

    <input name="firstname" value"{lastname}">

</form>

...

---------------------

When no content for the variable 'firstname' or 'lastname' php get a error notice.

Is there a way to set a flag to parse the template

-----------------------

<form>

    <input name="firstname" value"&nbsp;">

    <input name="firstname" value"&nbsp;">

</form>

-----------------------

Sorry for my bad english.

Your sincerly

Stephan

[Federico Ulfo]

Hi Stephan,

we talk about this problem long ago, we thought about introducing a new configuration "empty_var" so that you won't get a warning if a variable is used even if empty.

By default I think is correct that RainTPL throw this error, because if you have a typo or if you forget on the server side to assign a variable, you get an error. I have to verify how hard is to implement this feature, if is not too hard I will implement it.

Federico

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[Stephan]

Hello Federico!

Thanks for the information.
Today I must find time to test this setting.
I have an idea.

Can i see with {$template_info} unused variables?

 

Yours sincerely,

Stephan

Federico Ulfo <rainel...@gmail.com> hat am 1. August 2012 um 13:52 geschrieben:

[Federico Ulfo]

Hi Stephan,

yes {$template_info} purpose is to show you what variables you can use.

Federico

[Arief]

Hi Rain,

How's this feature going on?

For development, it's ok when there's unassigned variable and show php error base $varname not found, but in production it would be nice to just print the raintpl var.

For example if $username not assigned then it simply prints {$username}, so it can eliminate blank screen of death as php display error set to log file on production.

Is empty_var available in config now?

Thanks. 

[Federico Ulfo]

Hi, I don't think I will implement this feature any time soon, too much busy with new projects.

Thanks

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[Arief]

I made a small changes to file Parser.php on line 580. 

// if is an assignment it doesn't add echo

if ($echo) {

 $html = "echo (isset($html)? $html : '{" . $html . "}');";

}

When var $username not assigned it will now display {$username}. 

That would be easier then if we can introduce empty_var from config by simply replacing '{" . $html . "}' i guess.

Thanks.

[Arief]

My Previous code does not work if a variable has modifier, so there should be a check for char "(" indicating it's a function modifier. Here's the revision :

// if is an assignment it doesn't add echo

if ($echo) {

// Ignore if $html contains '('. It means it has modifier replace.

if (strpos($html, '(') === FALSE) {

$html = "echo (isset($html)? $html : '{" . $html . "}');";

} else {

$html = "echo " . $html;