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Moderators: martimiz, Sean, biapar, Willr, Ingo, simon_w

Conditionally inserting image


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4 Posts   1462 Views

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gakenny

Community Member, 153 Posts

17 October 2007 at 10:12pm

Hello,

I would like to conditionally insert an image into Page.ss based on the value of $URLSegment and the presence of the image file:

First problem:
I am trying to generate the HTML to display the image and I have inserted the following code into Page.ss.

<img class="center" src="assets/images/$URLSegment.jpg" alt="$Title" width="520" />

However, $URLSegment and .jpg is replaced with blank, ie. src=""assets/images/"

Second problem:
How do I detect the existence of this file in Page.ss so as to only insert the relevant HTML if the file exists?

Cheers,

Gary

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gakenny

Community Member, 153 Posts

19 October 2007 at 9:24pm

Hello,

To resolve this issue I inserted $URLSegment inside curly brackets ('{$URLSegment}').

I hope this helps.

Cheers,

Gary

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Sean

Forum Moderator, 922 Posts

22 October 2007 at 9:16pm

Edited: 22/10/2007 9:17pm

Optionally, you could make a new function called ImagePath() on your class and use $ImagePath in the template, instead. This would automatically find the relative path, like assets/images/$URLSegment, so you just need to insert <img src="$ImagePath" alt="My image" /> - this avoids the problem of having curly braces in your nice templates. :-)

function ImagePath() {
return 'assets/images/' . $this->URLSegment . '.jpg';
}

<% if ImagePath %>
<img src="$ImagePath" alt="My image" />
<% end_if %>

Cheers,
Sean

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gakenny

Community Member, 153 Posts

23 October 2007 at 10:13am

Thanks Sean - I might just try that.

Initially, I wasn't sure if I could pass a variable back from a function. I have been plugging away at the templating engine at the weekend and have made some breakthroughs - thanks to your support!

Many thanks,

Gary