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Assigning Templates to variables - Which way is better?

 
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dlanz
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Joined: 14 May 2015
Posts: 5

PostPosted: Fri Jun 12, 2015 2:40 pm    Post subject: Assigning Templates to variables - Which way is better? Reply with quote

I started out assigning templates to variables so I can output the variable within another template using code similar to this:

Code:

$tpl->assign('view1', $tpl->fetch('view1.tpl.htm'));
$tpl->batchlist('main.tpl.htm');


And then output the fetched template from main.tpl.htm using:
Code:
{$view1}


But then I see another method which is explained here:
http://www.smarty.net/forums/viewtopic.php?t=74&sid=2bfc83cba6d5f63f7e6a4c210b6fdb4a

I'm noticing a ton of PHP E_NOTICE errors which trace back to lines similar to:
Code:
$tpl->assign('view1', $tpl->fetch('view1.tpl.htm'));


So I'm in the process of trying method B to see if that stops the errors.
I'm guessing method B is the correct way, but can anyone explain why?

Note*: I'm also going to try this to see is there is any difference (all though I don't think there would be):
Code:

$view1 = $tpl->fetch('view1.tpl.htm');
$tpl->assign('view1', $view1);
$tpl->batchlist('main.tpl.htm');
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AnrDaemon
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Joined: 03 Dec 2012
Posts: 1785

PostPosted: Fri Jun 12, 2015 5:30 pm    Post subject: Reply with quote

Neither.
http://www.smarty.net/docs/en/language.function.include.tpl
http://www.smarty.net/docs/en/language.function.extends.tpl
^ that is the right way.
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dlanz
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Joined: 14 May 2015
Posts: 5

PostPosted: Mon Jun 15, 2015 5:58 pm    Post subject: Reply with quote

Okay, so I read through the links you provided and some additional resources. I understand the advantages of using the {include} tags and even {extends} tag. Performance wise {extends} is better because it caches a single template rather than each included template individually.

I've played around with the extends tag and it seems as if I can't use a variable to represent the path of any {include} or {extends} tags. That's a little different (and kind of the opposite) than how I had my templates setup, but with a little re-working I managed to switch methods. At first finding out I couldn't use variables for the paths I though "what good is that then?". But I just had to look at the situation differently.

Thank you for your help.
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AnrDaemon
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Joined: 03 Dec 2012
Posts: 1785

PostPosted: Mon Jun 15, 2015 9:39 pm    Post subject: Reply with quote

You shouldn't need to use variables there, rather, you create templates for every occasion, that extend main theme.
At most, you do a "case..switch" statement to select an appropriate theme in case of different rendering for different devices, if you are not using compile_id. But you really should.
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U.Tews
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Joined: 22 Nov 2006
Posts: 5068
Location: Hamburg / Germany

PostPosted: Mon Jun 15, 2015 9:52 pm    Post subject: Reply with quote

To merge {include} sub templates into a single compiled template for better performance use

$smarty->merge_compiled_includes = true;

or

{include .... inline}
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